BBC buildup?

[460rogers]

Does anyone have a good recipe for a normally asperated BBC for a light hull jet?

[BGMAN203]

I got one that pushed a jet to high 70's and is virtually stock. Pm me if your interested. I got lots of bbc combos that will work well

[460rogers]

I was wanting to get a few ideas on which block,heads,cam,intake,etc. to build a normally asperated BBC.

[GofastRacer]

Dude, that depends on what you want to do and how much $$$$$$$$$$ you want to spend!..:)

[HBjet]

Originally posted by GofastRacer
Dude, that depends on what you want to do and how much $$$$$$$$$$ you want to spend!..:)
Boy that is the truth... Actually, figure out the most you would want to spend, then divide that by half. Because when your done, your gonna end up spending double!
HBjet

[Fiat48]

Originally posted by HBjet
Boy that is the truth... Actually, figure out the most you would want to spend, then divide that by half. Because when your done, your gonna end up spending double!
HBjet
Yeah, there's a math deal for that. I think it money x square root or something like that.:D

[BGMAN203]

Originally posted by 460rogers
I was wanting to get a few ideas on which block,heads,cam,intake,etc. to build a normally asperated BBC.
Well, tell us what you have to work with, then we can tell you what will work and what to throw in the trash.

[Dennis Moore]

A two bolt 454 block with cast crank and 3/8 bolt rods will work fine. Hyperutectic flat top pistons and large oval port heads with a closed or semi closed combustion chamber. The Edelbrock Torker camshaft and a dual plane Edelbrock Oval Port intake manifold will work great. Edelbrock 750 Squarebore marine carb, Gil exhaust manifolds, stock Merc Thunderbolt IV Ignition with 34 degrees max ign. advance, extended tip spark plugs gapped at .045 inches.
It will make an easy 425+ horsepower at 5,000 rpm.
Dennis Moore

[cyclone]

Originally posted by Dennis Moore
A two bolt 454 block with cast crank and 3/8 bolt rods will work fine. Hyperutectic flat top pistons and large oval port heads with a closed or semi closed combustion chamber. The Edelbrock Torker camshaft and a dual plane Edelbrock Oval Port intake manifold will work great. Edelbrock 750 Squarebore marine carb, Gil exhaust manifolds, stock Merc Thunderbolt IV Ignition with 34 degrees max ign. advance, extended tip spark plugs gapped at .045 inches.
It will make an easy 425+ horsepower at 5,000 rpm.
Dennis Moore
yeah that motor will push your boat to about 65mph. not exactly settin' the world on fire with that combo are ya?

[460rogers]

Money is always a limiting factor but I was hopeing for some good advice for affordable power not HOW MUCH YA GOT stuff.
There are some good parts out there that don't have a rich so and so's name printed on it that will make good power in the right combonation with whats his names stuff.I just thought there were some good combos working out there that might work for me.Not looking for SPAM just your opinion thats all.
Thanks Dennis you'r on the right track just want more.

[Fiat48]

If you stray far from what Dennis was saying then you will push the edge of what you can do on pump gas. That is why it is so hard to just "give you a good combo" and be done with it.
If you are ready to give up pump gas or run octane boosters faithfully, then something along the old LS-6 or LS-7 combo's would be the next step. After that would be a stronger bottom end and maybe some Nitrous or a supercharger.
Altitude you boat at is also a factor. I am at 4500 ft, so 12 to 1 motors get away with high octane pump gas.
The best advice I can give you is to run as much compression as you can get away with for the fuel you want to run. Camshaft the motor for the true operating range it will run in. Large cylinder head ports, big intake runners, big carbs and big camshafts are all high rpm stuff you probably don't need.
Only as strong as your weakest link. Remember that means bottom end and also lack of compression.

[BonnevilleBaby]

building dependable performance motors is not an easy task. too many people just buy what the think they like and bolt it on and think the combo will work. if you do not have much experience and/or knowlege building them, i would suggest going with a crate type motor. they have a working combination of components that has been tested and work well on pump gas. you will most likely have to do a few minor mods for marine application, but thats easily done. GM sells a few nice crate BBC's that would be hard to build yourself without spending more than the price of the crate motor. and that will give you a few extra bucks to put into the pump. i would then suggest bringing your pump to a reputable builder, tell him what its going in (hull) and what motor and how you plan to use the boat, and he will build your pump to work correctly, and efficiently.
or maybe one of the experienced motorbuilders on here will cut you an awsome deal. anyone? anyone?:idea:

[Foggerjet]

I agree with Bonneville, GM sells a 454 HO thats hard to beat for the $ Mark V block, forged crank,rods,pistons, square port heads, roller cam, 2.19/1.88 valves. This puppy is pump gas friendly, has valve covers, oil pan, balancer, flexplate and intake. This won't set the water ablaze, but will run good for a long time. Plus with the forged bottom end, just add a little nitrous for speed blasts.
I believe you'd be hard pressed to build it for $5K, labor inc.
just .02
fog
P.S. no I don't work for GM, but I've installed these motors and was very impressed.

[460rogers]

Guess I posted on the wrong thread was looking for info.

[cyclone]

Originally posted by 460rogers
Does anyone have a good recipe for a normally asperated BBC for a light hull jet?
Ok you asked for recipes so here's the one that worked for me.
my recipe:
take 1 GMPP 502cid crate long block (all forged parts, rods have 7/16 bolts, 4-bolt main caps)
add a Moroso 11-quart oil pan and HV oil pump
top off with AFR 315 CNC aluminum heads (tulip valves, AFR springs)
Add Comp Cams bumpstick grind #CBVI 48768/4877B SR112.0
Comp Cams 1.73 ratio Magnum rockers
Comp Cams pushrods
Edelbrock Victor JR Air Gap intake manifold
Holley 950 HP Carburetor
MSD 6AL ignition and pro billet distributor and wires
Set timing at 37 degrees advance
Jet the carb with #92 jets at all four corners
and you'll have a 9.62:1 Compression ratio, pump gas-friendly (91 or 89 octane) engine that will make 730hp.
Assemble it yourself (the long block comes assembled) and the parts will cost you about 8 grand. No magic, no bs,just good parts that worked very well for me. Im no engine builder and my friends and i put this combo together in my garage in less than six hours.

[Blown 472]

Originally posted by cyclone
Ok you asked for recipes so here's the one that worked for me.
my recipe:
take 1 GMPP 502cid crate long block (all forged parts, rods have 7/16 bolts, 4-bolt main caps)
add a Moroso 11-quart oil pan and HV oil pump
top off with AFR 315 CNC aluminum heads (tulip valves, AFR springs)
Add Comp Cams bumpstick grind #CBVI 48768/4877B SR112.0
Comp Cams 1.73 ratio Magnum rockers
Comp Cams pushrods
Edelbrock Victor JR Air Gap intake manifold
Holley 950 HP Carburetor
MSD 6AL ignition and pro billet distributor and wires
Set timing at 37 degrees advance
Jet the carb with #92 jets at all four corners
and you'll have a 9.62:1 Compression ratio, pump gas-friendly (91 or 89 octane) engine that will make 730hp.
Assemble it yourself (the long block comes assembled) and the parts will cost you about 8 grand. No magic, no bs,just good parts that worked very well for me. Im no engine builder and my friends and i put this combo together in my garage in less than six hours.
And one sock filled with testors glue.:D :D :D

[cyclone]

Originally posted by Blown 472
And one sock filled with testors glue.:D :D :D
stop stalking me, Blown.

[powerplay230]

460Rogers,
Your in the right spot to get some help. This board has some of the friendliest, knowledgeable, experienced people on it. I have been saved by a couple of them more than once. One thing I have learned (yep I only learned 1, have a ways to go) is that the more info' you can give them the better answer you can get. Even in just basics like what type of hull it's going in, how much it weighs, what kind of jet, what do you have to work with or are you starting from scratch, and one of the most important (though awkward) is how much do you want to spend. Makes a big difference on the approach if you're like me trying to stick to a $5k budget or $15k. Bottom line I bet these guys can help you more than you think and usually get a couple of laughs when you are on here too. I know this rookie has learned a few things here.
Good luck on your project.
Rick
:cool:
ps... Blown what happened to the Candy that was with the Yellow vette, she was my hero! haha

[victorfb]

that combo mike (cyclone) suggested works awsome. his motor really worked well. ive seen it run and even had a chance to go for a ride and it hauled butt. if anyone is planning on copying mikes combo, let me know. i have that exact cam.

[paradigm shift]

Well here are a couple you may want to consider. They are builds for a little larger boat but I think they are good torgue motors and depending on your budget will determine your HP expectations. How much money you got!! ;)
Do you have parts already? 454 or 502 build up?
#1 540 cu. The basic combo is: 9.0:1 static compression, 4.500" bore x 4.25" stroke, 9.800" deck, Crane 741 hydraulic roller cam, Crane roller lifters, AFR 315 CNC heads with backcut Del West stainless intake valve, Del West inconel exhaust valves, Isky (PSI) "Tool Room" springs, Crower stainless rockers, JE forged pistons, Crower 4340 billet 6.386 rods, Crower semi-lightweight 4340NT crank, Victor Jr intake, Holley marine 850cfm 4150 carbs, MSD Pro-Billet Distributor, etc.... Take some HP off if building 502 or 509.
RPM.......TQ.......HP
4000.....643......490
4100.....644......503
4200.....644......515
4300.....649......532
4400.....654......548
4500.....655......561
4600.....660......578
4700.....660......590
4800.....655......599
4900.....652......609
5000.....651......619
5100.....648......629
5200.....645......639
5300.....642......649
5400.....638......656
5500.....635......665
5600.....630......672
5700.....619......672
5800.....610......674
5900.....601......675
6000.....591......675
#2 Econo 454
Here's the Federal Mogul parts list for a 454+.030, which dyno'd at 505 chp@5500;
L2465F+.030 forged pistons, 9.6:1 c/r
E233K+.030 rings
4400M main brgs
3190CP rod brgs
1404 cam brgs
381-8009 brass core plug set
KT3-171S timing chain set
CS1140R cam, 234intake/244exhaust@.050, .553/.578 lift
HT817 lifters
VS1581 valve springs
VSR7015 retainers
VK338R keepers
V-8007R intake valves, 2.19 dia.
V-8006R exhaust valves, 1.90 dia.
Merlin oval-port heads, Performer intakes, Holley carburation
Dyno's engines have H693CP+.030 hypereutectic pistons, 9.5:1. All other components are as listed above, including cams.

[460rogers]

Thanks for the input.Can't go with the crate motors right now but did aquire a 454 block 4 bolt main.I will be wanting alum heads.I noticed AFR heads on 2 posts.What about roller cams? would you suggest roller or flat tappet? the boat is a Youngblood TX-19 if that helps.This boat will be my hotrod not a family type boat.It had a small block in it but I just can't do that, I gotta have a big block.Help convert a Ford guy.Thanks.

[paradigm shift]

Cam choice really depends on many things including what heads you end up with. I think most will tell you to go with a roller cam. Roller cam will give you a little more HP and torgue depending on cam choice and heads. They will also be more $$$$. Infomaniac over on the blower motors section is a great resource and not on just blower set ups.
Personally unless you are trying to squeeze that last little HP out of it a Roller cam set up is expensive. Just my .02
What HP goals are you looking at.

[Blown 472]

Originally posted by 460rogers
Thanks for the input.Can't go with the crate motors right now but did aquire a 454 block 4 bolt main.I will be wanting alum heads.I noticed AFR heads on 2 posts.What about roller cams? would you suggest roller or flat tappet? the boat is a Youngblood TX-19 if that helps.This boat will be my hotrod not a family type boat.It had a small block in it but I just can't do that, I gotta have a big block.Help convert a Ford guy.Thanks.
**** that chevy junk, build a ford with some blue thunders on it and go kick some bow tie pussy ass.

[460rogers]

Did the ford thing already want to try chevy and see what all the fuss is about.I'm looking to get @ 700 HP like my ford has.Will be going with aluminum heads and roller cam.How about intakes?
I will be spinning it hard should I go with a 427?

[MikeF]

Your impeller size will dictate how high you can spin it. If your 427 makes 700hp @ 7500rpm and you are running an A/B impeller, you still only see maybe 5400 r's.

[DogHouse]

Originally posted by 460rogers
Money is always a limiting factor but I was hopeing for some good advice for affordable power not HOW MUCH YA GOT stuff.
There are some good parts out there that don't have a rich so and so's name printed on it that will make good power in the right combonation with whats his names stuff.I just thought there were some good combos working out there that might work for me.Not looking for SPAM just your opinion thats all.
Thanks Dennis you'r on the right track just want more.
Without the "HOW MUCH YA GOT" question, how is anyone supposed to answer your question?
Here's a combo... 4.6x4.5, dart block, dooley pan, scat crank, eagle 6.8 rods, je coated pistons, zero gap rings, dart 355 coated pro-1 heads, custom roller .730/.700/260/268@.050/114, roller rockers, erson gear drive, dart intake, 2000cfm throttle body, 75lb/hr injectors, electromotive tec3 ecu, aeromotive fuel pump & regulator. 10.8:1, 91 oct, 813hp (corrected of course), 770ft-lbs, carried over 700ft-lbs from 3000-6000 rpm. Works good in my 4000+lb boat or would really make a light boat accelerate.
-brian

[Foggerjet]

Brian, I was going to suggest a very similar combo, that should make 45' trawler haul ass.

[O.B eddie]

Originally posted by cyclone
Ok you asked for recipes so here's the one that worked for me.
my recipe:
take 1 GMPP 502cid crate long block (all forged parts, rods have 7/16 bolts, 4-bolt main caps)
add a Moroso 11-quart oil pan and HV oil pump
top off with AFR 315 CNC aluminum heads (tulip valves, AFR springs)
Add Comp Cams bumpstick grind #CBVI 48768/4877B SR112.0
Comp Cams 1.73 ratio Magnum rockers
Comp Cams pushrods
Edelbrock Victor JR Air Gap intake manifold
Holley 950 HP Carburetor
MSD 6AL ignition and pro billet distributor and wires
Set timing at 37 degrees advance
Jet the carb with #92 jets at all four corners
and you'll have a 9.62:1 Compression ratio, pump gas-friendly (91 or 89 octane) engine that will make 730hp.
Assemble it yourself (the long block comes assembled) and the parts will cost you about 8 grand. No magic, no bs,just good parts that worked very well for me. Im no engine builder and my friends and i put this combo together in my garage in less than six hours. I think your recipie is missing a few ingredients to attain that H.P figure 1.45 per C.I Plus 6 hrs must have been a plastigauge party Hee Haww:rolleyes: :D Oh B.T.W can I borrow the dyno???

[460rogers]

Cyclone's idea looks great except for the crate motor thingie.
Mike F.asked about impeller size, the boat had a SBC in it with a C cut domonator.
I would like to stay with carb or carbs setup.

[cheech]

i would take the 454 4-bolt, bore .060, best forged piston in your budget,hone block for gap-less rings, replace all bolts with ARP's.the 3/8 bolts will work fine. pick your heads that work the best in the 4500 to 5500 range and match the cam,springs and intake. keep your comp. to 10 to 1 (gas at the boat dock). with a good tight pump it should run pretty good and durable. then add the bottle (100 hp shoud be safe) when you feel the need for speed? these parts are sold by everyone for pretty low cost.spend the money on the good machine work. and all you will have to do is filler up an go.

[cheech]

what rpm did your motor make the hp, did it peak with a steady climb, was the torque curve flat and where did it peak. is this max dyno power, or is this what it will run in the water?

[wsm9808]

Here is a simple, low cost BBC set up I had in my last jet boat.
.060 454 with .100 dome hyperutectic pistons, worked out to be 9.6 compression
Lunati .230/.230 @.050 with .544 lift flat tappet hydraulic cam
Stock rockers
old closed chamber 109cc oval port heads with some pocket porting and 2.19/1.88 valves
stock HEI ignition
stock cast crank
stock rods with ARP bolts
Holley single plane intake and 780 vaccuum secondary carb
This combo turned an A impeller in a fresh tight(.016 wear ring) pump 5300 RPM an 72 mph gps, which works out to around 435HP. And that was through logs, not headers. It always felt slighty under cammed and I think with headers and a step bigger cam, there was another 30 to 60 hp in that combo. I ran the piss out of it for two seasons with no problems, and as far as I know the person I sold it to is still running it. Attached is a pic of the engine.
One other option you might concider, since you dont have a crank, is a 4.250 stroke crank for your block. Scat makes a cast steel one for around 300.00 that uses stock rods and FM makes a hypereutectic piston set for around 250.00. I have these same parts for .100 over 454 block that works out to be a 505CI I was building for my Camaro to replace the 406sbc that is in it now.
I think the stroked (496) big block and an A impeller and the Eldebrock Oval heads or the AFR 315s would scream in your gull wing hull. You might even have the go to an AA impeller to keep the RPMs sane. And the acceleration would be awesome.
I dont think you'll like that C impeller with a BBC and cruising rpms will be annoughingly high.
I personaly dont follow the thought that you should spend a butt load of money and spend 6 months or even years saving to put together the "ultimate" engine, I think that causes a lot of projects to never get finished. On a project like that I would build a reliable, mild, strong performing engine and get it on the water. Then if the need for more speed prevails and you still want to build an engine you cant afford all at once, you will have the baseline engine performance for compairasion and have all the bugs worked out of the hull and set up by time your ready for the big dog motor. And you'll have a back up motor if you trash the hot rod one.
But thats me. I like my stuff running, not setting in the back corner of the shop.

[460rogers]

I was thinking of putting in an A imp for the BBC later,want to get it wet with this setup first.
took the block to machine shop today for a good cleaning and found some cracks,back to square one,no money spent yet.

[wsm9808]

Where are the cracks at on the block?

[460rogers]

There wer cracks in the lifter valley that go through to middle main.Must have frozen or something.Had another motor donated today for project have fingers crossed.Found rebuilt 427, 4 bolt for 950.00 but 700.00 core.want to save money for internals.Just need to find good block.Was talked into going with A imp,pulling pump today.

[powerplay230]

460Rogers,
I have a complete 454 Longblock if interested. Had an exhaust manifold/riser leak and has now sat over a year. Block and head cores usable possibly crank/rods too. Was a Mark IV 454/330 horse Mercruiser bought in 1995, has small oval ports and think cast crank. No idea how bad shipping would be from Tampa Bay, if any interest i will go to shop and take another look at it, will be cheap as I have no plans for it..
Rick

[460rogers]

Thanks Rick
I was given another block but didn't get it to the machine shop yet.Hope to get it there soon for good cleaning and checkup.

[powerplay230]

If not let me know, unless freight is crazy. Only looking for beer money for Nascar season. Or a chance to pay a Boardie backk.....Good luck!

[cstraub]

460Rogers,
I sold 300 New Tall Decks 2 years ago to 4 customers. Comp Products up in Oshkosh was one. They were new Gen 4's and had very thick cylinder walls. These could be had for a decent price.
I developed 4 combinatins for Jasper engines 4 years ago for a marine performance project they were thinking about getting into. We got the 540 and the 572 NA's to the dyno and tweaked those combos pretty good. The 540 was 650/670 and the 572 was 725/735 power wise, but all this power was made under 5500 rpm. These were 8.5 to pump gas combos. Good engines, project got canned with the ecomomy slump.
Chris

[powerplay230]

$100.00 plus shipping or B.O.

[cyclone]

Originally posted by O.B eddie
I think your recipie is missing a few ingredients to attain that H.P figure 1.45 per C.I Plus 6 hrs must have been a plastigauge party Hee Haww:rolleyes: :D Oh B.T.W can I borrow the dyno???
and you are an authority on my motor because????....... sheesh you try to help a guy out and the jackasses just come out of the woodwork.
oh wait you're right. i must be full of crap because my heavy boat doesn't run 95 mph with that single carb motor. and the dyno, the gps and the radar gun all must be lying too right?

[victorfb]

mike, maybe you should have stuck with that single carb motor and run em all. now all they are going to say is that the blower motor wont work because you put too much wieght in the boat or something. i mean cmon now. how much more HP can you get from a little forced induction? :D

[victorfb]

its not worth the effort mike. there a alot of really cool people on here such as yourself that want and enjoy helping some of us not so knowledgeable folks out. i know i appreciate it big time and learn from you guys alot of great info and tips. dont let these idiots get to ya man. they do have the right to post their oppinions and knowledge, just sometimes not the ability.:D

[O.B eddie]

Originally posted by cyclone
and you are an authority on my motor because????....... sheesh you try to help a guy out and the jackasses just come out of the woodwork.
oh wait you're right. i must be full of crap because my heavy boat doesn't run 95 mph with that single carb motor. and the dyno, the gps and the radar gun all must be lying too right? Sorry Mike I truly did not mean to offend you! Furthermore I have built many BBC!! As far as being an authority on your motor NO but do you think you are the only one who has ever ran that combo or one simillar?? I disagree on the H.P #s claimed thats all!!! As far as your boat runs I have no idea nor do I care nor do I even know what you have..... Dont get me wrong G.M makes good stuff I beleive, But it is heavy!! My opinion is at 9.62 comp with that cam grind those heads, I find it hard to beleive 730 h.p.. As far as radar guns no I would not trust one.. Have a good one oh B.T.W take it to the track and see the M.P.H.. seein is beleiving....:D :D :D O.B the jackass hee haww

[cyclone]

Originally posted by O.B eddie
Sorry Mike I truly did not mean to offend you! Furthermore I have built many BBC!! As far as being an authority on your motor NO but do you think you are the only one who has ever ran that combo or one simillar?? I disagree on the H.P #s claimed thats all!!! As far as your boat runs I have no idea nor do I care nor do I even know what you have..... Dont get me wrong G.M makes good stuff I beleive, But it is heavy!! My opinion is at 9.62 comp with that cam grind those heads, I find it hard to beleive 730 h.p.. As far as radar guns no I would not trust one.. Have a good one oh B.T.W take it to the track and see the M.P.H.. seein is beleiving....:D :D :D O.B the jackass hee haww
Believe what you want. He asked for an engine recipe, i gave him mine. I never said i was the only one to try that combo and I've seen 3 similar motors on different dynos produce near the same power level mine did. I'm also acquaintences with several very good builders and have seen what is possible with the same combo as mine and I can tell you that my motor is not the tip of the iceberg. There are similar setups making way more power than mine. I'm not here to sell anything so there's no reason to inflate the numbers. It does nothing for my ego.
And thinking the weight of GM products has anything to do with their ability to produce power doesn't make much sense.
But you keep on dissing anyone who doesn't do things your way ok because that makes you really cool. :rolleyes:

[cyclone]

Originally posted by victorfb
its not worth the effort mike. there a alot of really cool people on here such as yourself that want and enjoy helping some of us not so knowledgeable folks out. i know i appreciate it big time and learn from you guys alot of great info and tips. dont let these idiots get to ya man. they do have the right to post their oppinions and knowledge, just sometimes not the ability.:D
vic- thanks but i think ill just PM any info i have to whoever asks rather than post it up here. Its not worth the hassle with so many sharks in the pool. ;)

[460rogers]

Thanks for all your help.
I think I know which way to start now.
Wish I could go the ZZ502 way but not right now mabey before sept. race.
I will probably asking Questions during buildup I am new to this chevy stuff.
Can't wait to see where building a chevy is cheaper than a BBF.
Haven't seen it yet.
Thanks CYCLONE I respect your opinions and think the new motor is COOL .
460

[Blown 472]

Originally posted by cyclone
vic- thanks but i think ill just PM any info i have to whoever asks rather than post it up here. Its not worth the hassle with so many sharks in the pool. ;)
Is that like fonzy jumping tha sharK?

[O.B eddie]

First of all I dissed noone!! Secondly I saw the write up in hot boat and Westech are respectable people, apparently it is not ok to diaagree here!! As far as G.M pparts reciprocating weight is certainly a factor depending on r.p.m!!!!! Hey if that motor made that H.P I think being a chevy enthusiast that is great.... Dont get me wrong, I will say assumming the motor reached the above H.P figure the parts are on the edge of there produced ability ....... Am I incorrect or not??? Brother your boat is cool !! I just beleive as you said 6 hours assembling a motor that is producing high H.P may be on the edge thats all .. Have a good one:D :D

[Fiat48]

Originally posted by cyclone
Ok you asked for recipes so here's the one that worked for me.
my recipe:
take 1 GMPP 502cid crate long block (all forged parts, rods have 7/16 bolts, 4-bolt main caps)
add a Moroso 11-quart oil pan and HV oil pump
top off with AFR 315 CNC aluminum heads (tulip valves, AFR springs)
Add Comp Cams bumpstick grind #CBVI 48768/4877B SR112.0
Comp Cams 1.73 ratio Magnum rockers
Comp Cams pushrods
Edelbrock Victor JR Air Gap intake manifold
Holley 950 HP Carburetor
MSD 6AL ignition and pro billet distributor and wires
Set timing at 37 degrees advance
Jet the carb with #92 jets at all four corners
and you'll have a 9.62:1 Compression ratio, pump gas-friendly (91 or 89 octane) engine that will make 730hp.
Assemble it yourself (the long block comes assembled) and the parts will cost you about 8 grand. No magic, no bs,just good parts that worked very well for me. Im no engine builder and my friends and i put this combo together in my garage in less than six hours.
Sounds like a nice combination. But the only way I could make those kind of Hp and torque numbers at 6400 rpm was to put the VE at 130% for intake and exhaust and corrected altitude of 0 feet. A highly unlikely situation.
Other engine combo's done by trick flow dyno testing I was able to match up if I used 110% VE, which I might think possible. But depends on who is pushing the dyno buttons.
All of Bill Mitchell's crate 509 and 540 stuff matched up at 100% VE.
wsm9808's combo matched within 5 Hp.
If I put in 130% VE as an intake and exhaust factor with my blown alcohol 509, with 10 lbs boost (static 12.5 compression) I show 1826 Hp and 1347 ft lbs of torque. And I ain't buyin that either.
If this sounds like I don't believe most dyno numbers, you are right. :D

[Blown 472]

you are forgeting the magazine article correction factors and all the companies that kicked some money to have their name in print.:rolleyes:

[cyclone]

I love your assumptions about magazines. you know what they say happens when you assume something.......:rolleyes:

[cyclone]

Originally posted by Fiat48
Sounds like a nice combination. But the only way I could make those kind of Hp and torque numbers at 6400 rpm was to put the VE at 130% for intake and exhaust and corrected altitude of 0 feet. A highly unlikely situation.
Other engine combo's done by trick flow dyno testing I was able to match up if I used 110% VE, which I might think possible. But depends on who is pushing the dyno buttons.
All of Bill Mitchell's crate 509 and 540 stuff matched up at 100% VE.
wsm9808's combo matched within 5 Hp.
If I put in 130% VE as an intake and exhaust factor with my blown alcohol 509, with 10 lbs boost (static 12.5 compression) I show 1826 Hp and 1347 ft lbs of torque. And I ain't buyin that either.
If this sounds like I don't believe most dyno numbers, you are right. :D
take away the correction factor and my motor still made over 700hp. good statistics though, so you must be right. :rolleyes:

[Blown 472]

Originally posted by cyclone
I love your assumptions about magazines. you know what they say happens when you assume something.......:rolleyes:
And your not the editor for truckin mag? and you dont have someone building you a truck with a similar motor combo?? no assumptions just facts mags inflat their numbers to sell parts, last I checked people who advertise in them dont get it for free.

[cyclone]

get your facts straight. I do not work for truckin mag. no one is building me a motor for any truck. like i said before about assumptions......:rolleyes:

[Blown 472]

Originally posted by cyclone
get your facts straight. I do not work for truckin mag. no one is building me a motor for any truck. like i said before about assumptions......:rolleyes:
And that wasn't your chevy truck in the pics last year?

[cyclone]

i've owned many trucks that have been in magazines. I hate to burst your bubble but magazines don't sell dyno numbers. If a part or engine doesn't perform, a magazine is more likely to not run the story, rather than lie about the numbers. Magazines can't afford to have their integrity questioned by their readers so its not in their best interest to lie to their readers. Magazines are not in the business of selling parts, they are in the business of selling magazines.

[Blown 472]

Originally posted by cyclone
i've owned many trucks that have been in magazines. I hate to burst your bubble but magazines don't sell dyno numbers. If a part or engine doesn't perform, a magazine is more likely to not run the story, rather than lie about the numbers. Magazines can't afford to have their integrity questioned by their readers so its not in their best interest to lie to their readers. Magazines are not in the business of selling parts, they are in the business of selling magazines.
dude, put the crack pipe down and walk away from it.

[cyclone]

Ill bet you think the earth is flat and moon is made of cheese too. god your dumb. :rolleyes:

[Blown 472]

Originally posted by cyclone
Ill bet you think the earth is flat and moon is made of cheese too. god your dumb. :rolleyes:
Seeing how I am dumb lemme get this right, a magazine does an article on the hopes that it will sell because it is bitchen or what ever and does not rely on the people who want to advertise in it to make money?? seems like a big o risk to take but then agian I is dumb, funny hot boat seems to run a ton of new boat tests over and over agian even thou people bitch about it, and want articals about what they are into, could you explain to me how that works?

[HBjet]

Blown472, lets say a pro builder you knew, and trusted, built a motor identical to Cyclones, or mine and that was that. No magazine coverage... and it made the same power, what would you call bullshit then?
HBjet

[Blown 472]

Originally posted by HBjet
Blown472, lets say a pro builder you knew, and trusted, built a motor identical to Cyclones, or mine and that was that. No magazine coverage... and it made the same power, what would you call bullshit then?
HBjet
Whos dyno?:D :D But on the other hand look at some of the builders out there that have the same displacement, more cam, more comp, and bigger carb and not making that hp, what does that say?

[HBjet]

Originally posted by Blown 472
Whos dyno?:D :D But on the other hand look at some of the builders out there that have the same displacement, more cam, more comp, and bigger carb and not making that hp, what does that say?
There are too many variables to make such a statment. You never did answer my question though. What would your argument be if a builder you knew built motors identical to mine or cyclones and came back with the same results?
Back to your above statment, if a builder used exactly the same parts as cyclone or I, and added more cam, and more carb they should make more power.... But are they using the same heads? Are they running them at the same temp? Are they using the same intake? You can't make that statment, and to me it sounds like if builder XYZ who is good couldn't do it, then why can anyone else.
I read somewhere that 60-70 or so years ago, people thought by the year 2000 we would have a cure for the common cold, and there was no way we would ever reach the moon..... hmmmmm
I just find it funny that my motor, and cyclones motor both don't make the power we have claimed according to you because someone you know hasn't been able to do it.
HBjet

[flat broke]

Originally posted by Blown 472
Whos dyno?:D :D But on the other hand look at some of the builders out there that have the same displacement, more cam, more comp, and bigger carb and not making that hp, what does that say?
Those builders need to learn how to tune their setups, or they need to do a little more homework on their parts combination? :D
What would the boards be without your predictable yet always conversation provoking stance towards west coast products. :rolleyes:
Chris

[BrendellaJet]

Originally posted by Blown 472
Whos dyno?:D :D But on the other hand look at some of the builders out there that have the same displacement, more cam, more comp, and bigger carb and not making that hp, what does that say?
I think it says that they didn't use the right heads, you idiot. Go home.

[cyclone]

Originally posted by Blown 472
Seeing how I am dumb lemme get this right, a magazine does an article on the hopes that it will sell because it is bitchen or what ever and does not rely on the people who want to advertise in it to make money?? seems like a big o risk to take but then agian I is dumb, funny hot boat seems to run a ton of new boat tests over and over agian even thou people bitch about it, and want articals about what they are into, could you explain to me how that works?
Maybe you ought to go work for a magazine before you decide you know how they are run. Magazines do not pin their hopes of selling an issue based on one story. I didn't pick out the parts for my motor based on what company is advertising in which magazine. I picked the parts out based upon the advice of several excellent engine builders. Just so happens these guys were right. Billy Godbold, cheif engineer at Comp Cams was right in his cam selection for my motor. Tony Mamo, head of R&D at AFR was right about selecting the smallest CNC program for my heads and not strapping on the big gun 357CC heads. Steve Brule was on the money with the intake and carb selection. Nothing to do with how my motor ran had anything to do with selling parts. LIke i saide before, take away the correction factor and the engine still made over 700hp as witnessed by several folks on this board. Just because the engine builders you like to cheerlead for are playing with a different program doesn't mean they can't achieve the same results or haven't long before me. But you keep on talking smack about magazines and motors, two subjects you seem to know very little about. How fast is that blower motor pushing your boat again? that's what i thought. :rolleyes:

[Blown 472]

Originally posted by cyclone
Maybe you ought to go work for a magazine before you decide you know how they are run. Magazines do not pin their hopes of selling an issue based on one story. I didn't pick out the parts for my motor based on what company is advertising in which magazine. I picked the parts out based upon the advice of several excellent engine builders. Just so happens these guys were right. Billy Godbold, cheif engineer at Comp Cams was right in his cam selection for my motor. Tony Mamo, head of R&D at AFR was right about selecting the smallest CNC program for my heads and not strapping on the big gun 357CC heads. Steve Brule was on the money with the intake and carb selection. Nothing to do with how my motor ran had anything to do with selling parts. LIke i saide before, take away the correction factor and the engine still made over 700hp as witnessed by several folks on this board. Just because the engine builders you like to cheerlead for are playing with a different program doesn't mean they can't achieve the same results or haven't long before me. But you keep on talking smack about magazines and motors, two subjects you seem to know very little about. How fast is that blower motor pushing your boat again? that's what i thought. :rolleyes:
I see so these peeps that you do articles on dont kick any money to the mag you call them up and say hey whatcha building, can we come over and take some pics and do a write up cuz I know it will be phat and lots of peeps will buy the mag cuz it has some big ass numbers in it. How much has dne paid out to mags??

[Blown 472]

Originally posted by flat broke
Those builders need to learn how to tune their setups, or they need to do a little more homework on their parts combination? :D
What would the boards be without your predictable yet always conversation provoking stance towards west coast products. :rolleyes:
Chris
Reher morrson been building motors for how ****ing long?? do a search and check it out Sonny Lennord but yet some dude in his garage slaps a motor together and kicks all their asses, **** what a bunch of dumb **** hillbillies should have some so cal garage motor shop done their shit huh?

[Blown 472]

Originally posted by Blown 472
Reher morrson been building motors for how ****ing long?? do a search and check it out Sonny Lennord but yet some dude in his garage slaps a motor together and kicks all their asses, **** what a bunch of dumb **** hillbillies should have some so cal garage motor shop done their shit huh?
check out tha 555http://www.sonnysracing.com/
Now you girls dont get your panties all in knot I am just ****ing with you cuz it is snowing like a bitch and I am bored as a mutha ****er.

[HBjet]

Originally posted by Blown 472
How much has dne paid out to mags??
Nothing, Zero, Zip!
So know what?
HBjet

[OMEGA_BUBBLE_JET]

:rolleyes: Nevermind :rolleyes:
Omega

[cstraub]

I'm coming from the outside on this one, don't know any of you and don't want to start anything. Just a boater that happens to work in the HP industry.
I put this 502 through the program I use to developed camshafts and what I get at 100 VE is 589HP at 6500 RPM. With that said I am no supporter of HP, torque is what wins races. . .spins props. An engine in a boat with a very broad torque band in its operating rpm is able to swing some serious pitch. In marine applications, circle track, and or drag I concentrate on a torque band that is 2400 rpm broad and doesn't vary 5% from peak on a bell curve. You do that you win races.
This 502 combination is a good combo and knowing the 2 company guys you mentioned I know they know there stuff and make good parts, but that kind of power out of that combination is not possible. 600 yes. I would say the engine has a very flat torque band, pushing 500#/ft and because of the torque she runs like she does.
Now I have engine builders all over I work with so I have no west coast grude, 2 of my best customers are in WA and OR.
As for the magazines. . .HP sells engines, torque wins races.
Chris

[Kurtis500]

Originally posted by 460rogers
Does anyone have a good recipe for a normally asperated BBC for a light hull jet?
Think forged bottom end and a blower. Can adjust the boost and mess with things a little.

[Fiat48]

cstraub69. May I ask what software you use? Thanks!

[Blown 472]

Originally posted by cstraub69
I'm coming from the outside on this one, don't know any of you and don't want to start anything. Just a boater that happens to work in the HP industry.
I put this 502 through the program I use to developed camshafts and what I get at 100 VE is 589HP at 6500 RPM. With that said I am no supporter of HP, torque is what wins races. . .spins props. An engine in a boat with a very broad torque band in its operating rpm is able to swing some serious pitch. In marine applications, circle track, and or drag I concentrate on a torque band that is 2400 rpm broad and doesn't vary 5% from peak on a bell curve. You do that you win races.
This 502 combination is a good combo and knowing the 2 company guys you mentioned I know they know there stuff and make good parts, but that kind of power out of that combination is not possible. 600 yes. I would say the engine has a very flat torque band, pushing 500#/ft and because of the torque she runs like she does.
Now I have engine builders all over I work with so I have no west coast grude, 2 of my best customers are in WA and OR.
As for the magazines. . .HP sells engines, torque wins races.
Chris
Do I hear Jer coming down the hall??
I have heard of stef's what all do you do?

[HBjet]

Originally posted by cstraub69
but that kind of power out of that combination is not possible. 600 yes. I would say the engine has a very flat torque band, pushing 500#/ft and because of the torque she runs like she does.
So a 600hp / 500ft lbs torque motor can push a 600lb hull with half tanks of gas 94-95mph with a jet in 100+ degree heat?
What about my motor combo? 496ci, 10.250:1 comp, Gm 990 heads with porting (320cc/304cc - Good/Bad intake ports & 192cc exhaust ports) , hydrolic roller cam (Duration at .050: 245 intake/252 exhaust - Gross valve lift: .680 intake/.680 exhaust 112 lobe centerline) port matched Edlebrock tunnel ram, Holley 750HP carbs, running on pump gas (91 octane).
What do you come up with for that?
Thanks
HBjet

[Blown 472]

Originally posted by HBjet
So a 600hp / 500ft lbs torque motor can push a 600lb hull with half tanks of gas 94-95mph with a jet in 100+ degree heat?
What about my motor combo? 496ci, 10.250:1 comp, Gm 990 heads with porting (320cc/304cc - Good/Bad intake ports & 192cc exhaust ports) , hydrolic roller cam (Duration at .050: 245 intake/252 exhaust - Gross valve lift: .680 intake/.680 exhaust 112 lobe centerline) port matched Edlebrock tunnel ram, Holley 750HP carbs, running on pump gas (91 octane).
What do you come up with for that?
Thanks
HBjet
What about a 300 hp outboard??
Not to be picky, but it's hydraulic.:D

[HBjet]

Originally posted by Blown 472
What about a 300 hp outboard??
Not to be picky, but it's hydraulic.:D
Blown, lets stick to BBC, that's what we are talking about.
HBjet

[OMEGA_BUBBLE_JET]

Originally posted by cstraub69
I'm coming from the outside on this one, don't know any of you and don't want to start anything. Just a boater that happens to work in the HP industry.
I put this 502 through the program I use to developed camshafts and what I get at 100 VE is 589HP at 6500 RPM. With that said I am no supporter of HP, torque is what wins races. . .spins props. An engine in a boat with a very broad torque band in its operating rpm is able to swing some serious pitch. In marine applications, circle track, and or drag I concentrate on a torque band that is 2400 rpm broad and doesn't vary 5% from peak on a bell curve. You do that you win races.
This 502 combination is a good combo and knowing the 2 company guys you mentioned I know they know there stuff and make good parts, but that kind of power out of that combination is not possible. 600 yes. I would say the engine has a very flat torque band, pushing 500#/ft and because of the torque she runs like she does.
Now I have engine builders all over I work with so I have no west coast grude, 2 of my best customers are in WA and OR.
As for the magazines. . .HP sells engines, torque wins races.
Chris
you are wasting your breathe(finger tips) Chris. the physics aspect of this has been covered many times. they have dyno sheets to prove it. :D DNE is the only person that posses the knowledge and skill to build these engines. Everyone else just can't match the skills, even some well known race winning NHRA teams don't know the secret formula.
Just wanted to warn you that you are treading on thin ice doubting anything that is said or posted regarding these engines. the proper response to such posts should be. Wow gnarley dude. that shit is fly! check out da bling bling, etc.
oh yeah and you will be flamed by their 'possy' also so beware.
Omega <---part of the dumb country **** clan that builds wimpy ass motors on garage floors.

[OMEGA_BUBBLE_JET]

Originally posted by HBjet
So a 600hp / 500ft lbs torque motor can push a 600lb hull with half tanks of gas 94-95mph with a jet in 100+ degree heat?
What about my motor combo? 496ci, 10.250:1 comp, Gm 990 heads with porting (320cc/304cc - Good/Bad intake ports & 192cc exhaust ports) , hydrolic roller cam (Duration at .050: 245 intake/252 exhaust - Gross valve lift: .680 intake/.680 exhaust 112 lobe centerline) port matched Edlebrock tunnel ram, Holley 750HP carbs, running on pump gas (91 octane).
What do you come up with for that?
Thanks
HBjet
I believe it was thought a 740+ hp motor should be able to drive your 600lb hull to triple digits. what happened HB????
the numbers must be wrong again:confused:
Omega (king of astroturf!!!)

[HBjet]

Originally posted by OMEGA_BUBBLE_JET
I believe it was thought a 740+ hp motor should be able to drive your 600lb hull to triple digits. what happened HB????
the numbers must be wrong again:confused:
Omega (king of astroturf!!!)
Well, my motor didn't make 740hp. It made 732 at 6300rpm, but I'm only turning 5800rpm with my Legend impeller.
My best speed is 95-96mph. My hull is 600lbs and I'm no light feather either!
BTW, DNE didn't build Cyclones motor, they built mine. Our motors are completely different in design, but made close to the same HP, and pushed our boats close to the same speed. So, what does that tell you? Its not some secret, and the pro builders you are thinking about are probably not working on pump gas 91 octane motors are they?
HBjet

[OMEGA_BUBBLE_JET]

Originally posted by HBjet
Well, my motor didn't make 740hp. It made 732 at 6300rpm, but I'm only turning 5800rpm with my Legend impeller.
My best speed is 95-96mph. My hull is 600lbs and I'm no light feather either!
BTW, DNE didn't build Cyclones motor, they built mine. Our motors are completely different in design, but made close to the same HP, and pushed our boats close to the same speed. So, what oes that tell you? Its not some secret, and the pro builders you are thinking about are probably not working on pump gas 91 octane motors are they?
HBjet
yes they are HB.. they work on everything from pump gas to race gas to alky to nitro engines.
both your engines were dynoed at the same place right???
I never said they were bad setups just not 700+ setups. right??
Omega

[cstraub]

Fiat,
I had the software built about 12 years ago. 20K and it hasn't been wrong yet.
Blown, Stef's. We R&D, build and sell oiling systems for HP engines. Customer's are 80% of the Cup field, Mercrusier, Sterling, Crocket, WJ, and many other performance engine builders.
HB,
With a 60% and a 63% ratio of exhaust to Intake you need about a 14 degree split on duration favoring the exhaust. Without running the numbers I would estimate around 620HP. With that said, max lift flow numbers are not as important as numbers at .300, .400, .500 lift.
Well, I take the flames everyday, that doesn't bother me, I love what I do and have a good rep. with customers. We make a quality product that makes power. I do the camshafts as a side business and it affords me some toys.
Im just on the board to lend a little knowledge. I learn everyday and don't think of myself as an expert, but working with the customers I have, I am privledged to a great deal of knowledge.
Chris

[HBjet]

There is a DNE motor (489ci/698hp) with a single carb running in a heavy Hallett bubble deck at the NJBA drags. Gutted, it ran 10.580/96.48mph
Must be magic right?
HBjet

[Blown 472]

Originally posted by cstraub69
Fiat,
I had the software built about 12 years ago. 20K and it hasn't been wrong yet.
Blown, Stef's. We R&D, build and sell oiling systems for HP engines. Customer's are 80% of the Cup field, Mercrusier, Sterling, Crocket, WJ, and many other performance engine builders.
HB,
With a 60% and a 63% ratio of exhaust to Intake you need about a 14 degree split on duration favoring the exhaust. Without running the numbers I would estimate around 620HP. With that said, max lift flow numbers are not as important as numbers at .300, .400, .500 lift.
Well, I take the flames everyday, that doesn't bother me, I love what I do and have a good rep. with customers. We make a quality product that makes power. I do the camshafts as a side business and it affords me some toys.
Im just on the board to lend a little knowledge. I learn everyday and don't think of myself as an expert, but working with the customers I have, I am privledged to a great deal of knowledge.
Chris
You spec cams for fords?

[cstraub]

HB,
You take CFM of Intake port at 28" x .2575 x No. of cylinders and you have the HP potential at 100% VE. 1.42HP per cubic inch is respectable.
Blown,
From Allis Challmers tractor pull cams to Wisconsin's, it don't matter. The first cam I ever did was for the old JukeBox Ford, the 58 Crown Vic Pro Mod, she was in top sportsman racing when I did the cam. With cam changed picked up 70HP and 85#/ft of torque. AT Francis and I are good friends along with Carol Carter.
Chris

[Blown 472]

Originally posted by cstraub69
HB,
You take CFM of Intake port at 28" x .2575 x No. of cylinders and you have the HP potential at 100% VE. 1.42HP per cubic inch is respectable.
Blown,
From Allis Challmers tractor pull cams to Wisconsin's, it don't matter. The first cam I ever did was for the old JukeBox Ford, the 58 Crown Vic Pro Mod, she was in top sportsman racing when I did the cam. With cam changed picked up 70HP and 85#/ft of torque. AT Francis and I are good friends along with Carol Carter.
Chris
Well hot damn, welcome aboard. There are bunch of ford guys on here I am sure will like to talk to you.

[058]

Originally posted by OMEGA_BUBBLE_JET
you are wasting your breathe(finger tips) Chris. the physics aspect of this has been covered many times. they have dyno sheets to prove it. :D DNE is the only person that posses the knowledge and skill to build these engines. Everyone else just can't match the skills, even some well known race winning NHRA teams don't know the secret formula.
Just wanted to warn you that you are treading on thin ice doubting anything that is said or posted regarding these engines. the proper response to such posts should be. Wow gnarley dude. that shit is fly! check out da bling bling, etc.
oh yeah and you will be flamed by their 'possy' also so beware.
Omega <---part of the dumb country **** clan that builds wimpy ass motors on garage floors. LMAO....Funny shit but true. 058<-----another part of the dumb country **** clan that builds wimpy ass motors on the garage floor. I guess that puts us into the Bench Racing Fag catagory, right?:rolleyes:

[058]

Cstraub69, Welcome aboard, Ford spoken here too.:D

[cstraub]

I'm not here to stir the pot....I'm online all day with work, designing, selling parts, so this is just stress relief for me. I have picked up a few customers, met Infomaniac on the Hotrod board and he is going to be a customer. Just here to add imput.

[Blown 472]

Originally posted by cstraub69
I'm not here to stir the pot....I'm online all day with work, designing, selling parts, so this is just stress relief for me. I have picked up a few customers, met Infomaniac on the Hotrod board and he is going to be a customer. Just here to add imput.
Glad to have you here. What can you whip up for an iron headed blown ford dealio?? or a mopar too as I am thinking about recamming my blown 440.

[cstraub]

Your heads, I can't stress that enough, must be flowed so I have those numbers. The other thing I have as a personal rule is I do not sell to individuals, it must go through a shop like a head porter, engine builder that you use, or one of my existing customers. I will not cut my customers throats.
Chris

[Blown 472]

Originally posted by cstraub69
Your heads, I can't stress that enough, must be flowed so I have those numbers. The other thing I have as a personal rule is I do not sell to individuals, it must go through a shop like a head porter, engine builder that you use, or one of my existing customers. I will not cut my customers throats.
Chris
Thats cool, you have a website or something that when I get some numbers I can get ahold of you?

[cstraub]

My office number is 423 854 0007. Our website is www.stefs.com I do the tech and sales to the mfg that we sell in the industry on the B&B side of the company.
Chris

[cyclone]

Originally posted by Blown 472
I see so these peeps that you do articles on dont kick any money to the mag you call them up and say hey whatcha building, can we come over and take some pics and do a write up cuz I know it will be phat and lots of peeps will buy the mag cuz it has some big ass numbers in it. How much has dne paid out to mags??
call dne and ask. i'm sure he'll tell you that he paid nothing. Can you not see the value of a good article to a magazine. Magazines dont pay shops or builders for stories. that's not how it works.

[cyclone]

Originally posted by Blown 472
Reher morrson been building motors for how ****ing long?? do a search and check it out Sonny Lennord but yet some dude in his garage slaps a motor together and kicks all their asses, **** what a bunch of dumb **** hillbillies should have some so cal garage motor shop done their shit huh?
you dont know that either of those guys hasn't built a better motor. i'm sure they have. just because they dont advertise a particular motor package doesn't mean it doesn't exist. use your brain. you're like the guy that says there's no way velcro can work because he's never seen it before. it cant be. it cant be. well it can!

[Blown 472]

Originally posted by cyclone
you dont know that either of those guys hasn't built a better motor. i'm sure they have. just because they dont advertise a particular motor package doesn't mean it doesn't exist. use your brain. you're like the guy that says there's no way velcro can work because he's never seen it before. it cant be. it cant be. well it can!
I e mailed them and asked them if they would start a signature line of motors after yours.:D

[DogHouse]

Originally posted by Blown 472
I e mailed them and asked them if they would start a signature line of motors after yours.:D
Ok, I gotta admit, that was pretty funny... :D

[O.B eddie]

Wow and to know I kinda started all this, I feel terrible.. Cyclone as I said if there was a 502 C.I motor on 91 octane makin that much H.P I guess Reher Morrison , Sonnys , dont know How to do it!!! And to say,, well I wont even go there!! And H.B JET which boat is that 10.45 or whatever and IS THAT FAST ???????????? I feel it all comes back to H.P per C.I and as most have stated these numbers are incredible And beleive me ONLY A CHEVY COULD HAVE MADE THEM !!!!!!!!!!!!!! So You have a pretty boat and even if you came up 75 H.P short you have done ok in my BOOK !! Have a good one And HEE Haaw:D :D

[O.B eddie]

Originally posted by HBjet
So a 600hp / 500ft lbs torque motor can push a 600lb hull with half tanks of gas 94-95mph with a jet in 100+ degree heat?
What about my motor combo? 496ci, 10.250:1 comp, Gm 990 heads with porting (320cc/304cc - Good/Bad intake ports & 192cc exhaust ports) , hydrolic roller cam (Duration at .050: 245 intake/252 exhaust - Gross valve lift: .680 intake/.680 exhaust 112 lobe centerline) port matched Edlebrock tunnel ram, Holley 750HP carbs, running on pump gas (91 octane).
What do you come up with for that?
Thanks
HBjet Brother you obviously dont get it if it pushes your boat to the edge that is all that matters!! Triple digits 5 digits it is all about how it is put to the water..........If you are happy COOL, Leave the H.P figures out of it !!!!!!!:D :D And B.T.W I come up with 600 H.P range give or take.. Hee Haw:D :D

[HBjet]

Originally posted by O.B eddie
And H.B JET which boat is that 10.45 or whatever and IS THAT FAST ????????????
It may not be fast to some of you, but if you saw the boat, you would be amazed.
Here it is.
http://classicboatbeachbash.com/cbbb03/Dscn2183.jpg
http://classicboatbeachbash.com/cbbb03/otherspics/959270-R1-9.jpg
HBjet

[Blown 472]

Pick me pick me, it's cuz the carb is mounted sideways, great idea get away from all the stupid shit caused by floats.