M.p.h

[H.B.delux]

I got a question. I have a 16' tahiti v-hull with a 12-jc pump I just rebuilt
with a A/B cut impeller and a loader grate. I am pushing 6800-7000 R.P.M
I dont have a gps and would like to know if someone could tell me about
how fast I am moveing.

[Squirtin Thunder]

Spend the $100 it is well worth it.

[TRG]

That sounds to me like you are spinning the hell outta that motor, and in a 16' hull, never the less a v-bottom! if it is loading properly,....you have quite a set swingin there!

[TRG]

Spend the $100 it is well worth it.
How do ya mean Jim?

[Cas]

How do ya mean Jim?
buying a gps. Target has the Garmin E-Trex for $79. and sleekcrafter here on the boards has a real good conection also.

[H.B.delux]

Any one familier with the 16' half stringer hulls . when I get the boat up to
speed it's a hell of a ride

[Sleeper CP]

What engine do you have in that thing? If that thing is actually hooking up that means you are making somewhere north of 900 HP. More like 950-1,000.:idea: It either makes alot of ponies or it's not hooking up. So what are you running, cause I don't think I would be running it in a 16' boat.
Sleeper CP

[TRUMP TIGHT]

What engine do you have in that thing? If that thing is actually hooking up that means you are making somewhere north of 900 HP. More like 950-1,000.:idea: It either makes alot of ponies or it's not hooking up. So what are you running, cause I don't think I would be running it in a 16' boat.
Sleeper CP
Why not?!:D:D

[pw_Tony]

What about SOME engine specs to give us an idea of whatcha got?

[H.B.delux]

The motor is no where neer 800hp . its a bbc 427 ,merlin heads, 13:1, roller
.687in exh / 1.7 rockers. I run dull 650cfm dp's on a high rise with gas/alchoal mix. the pump sounds and feels to hook up.

[Sleeper CP]

Why not?!:D:D
Answer: When is the last time you were in a 16' V with near 1,000 hp?
It would have to be running somewhere over 95 and probably closer to 100.
I've been in a couple of 18' V's at better than 80 and they weren't the safest riding boats that's for sure.:eek:
Sleeper CP

[Sleeper CP]

The motor is no where neer 800hp . its a bbc 427 ,merlin heads, 13:1, roller
.687in exh / 1.7 rockers. I run dull 650cfm dp's on a high rise with gas/alchoal mix. the pump sounds and feels to hook up.
Check out the Impeller/RPM chart I just reposted on the front page. It's extended impeller chart, look at page one of the thread to see the hp chart then get back to us.
Sleeper CP

[H.B.delux]

Are the tahiti 16' hulls worth any thing if there in o.k shape? its a 1972

[fleetimus]

http://i37.photobucket.com/albums/e70/fleetimus/short%20shot/HPIM0183.jpg
Is your hull the same as this??? If so, keep it under 70 mph and live a long life. I had my BBC in this hull for a short time. It hooked at 80 mph and I left a trail in the seat a foot wide. The deep vee does not like coming down at speed!!!!!!!

[Sleeper CP]

Do you know if your tac is accurate?
Sleeper CP

[H.B.delux]

I looked at the chart but Im not makeing that much power. I had this motor
in my truck and it would run 12 flats with ease. last year befor I rebult the pump the boat would run 63mph@5700rpm on a buddys gps hand held. it had a A cut impeller that seen better days . It now has a a/b cut

[H.B.delux]

fleetimus my hull is more squair there use to be a tank in the bow that i took out. the bow does not have that raised ariea arount the edge like yours.

[Squirtin Thunder]

I ran one of those about two months ago out here. It was a single carb 95-100mph boat, so he said and he also said it was radared at 96mph last summer.
I was set up in lake/river trim (mufflers, seats and all the normal crap) running mid 70s @5k with a A impeller. I smoked him like a cheep cigar. He tried to tell me I was running over 100mph and then I showed him the GPS, 74mph.

[pw_Tony]

I ran one of those about two months ago out here. It was a single carb 95-100mph boat, so he said and he also said it was radared at 96mph last summer.
I was set up in lake/river trim (mufflers, seats and all the normal crap) running mid 70s @5k with a A impeller. I smoked him like a cheep cigar. He tried to tell me I was running over 100mph and then I showed him the GPS, 74mph.
It didn't happen to be one with an OLDS in it was it :devil:

[Squirtin Thunder]

It had a SBC in it.

[W.O.T]

Do you know if your tac is accurate?
Sleeper CP
i doubt his tac is correct or impeller? 6800-7k not with an a/b that would take some beans. somethings not right

[RCB19]

Must be a slow night here in Jet Boat Land. Way to rally the boards Hillbilly Delux. People are trippin all over their shoe laces for this one.

[jetboat]

the most comman answere is ''between here and there''.

[cave]

last year before I rebuilt the pump the boat would run 63mph@5700rpm on a buddys gps hand held.
Just ask your friend to ride with you again.

[502 JET]

i doubt his tac is correct or impeller? 6800-7k not with an a/b that would take some beans. somethings not right
Probably has it set to the 6 cyl. setting.:)

[VAMI]

Something off I had a 18ft maraih vee with a 540 c cut impellor 6700 rpm it only did 88 89.It launch like a rocket but coming off plane that thing would dart all over.I needed another 1/4 mile to shut down with hitting the other guy.One day it almost threw me OUT:jawdrop:

[Cs19]

12-jc pump I just rebuilt
with a A/B cut impeller and a loader grate. I am pushing 6800-7000 R.P.M
last year before I rebult the pump the boat would run 63mph@5700rpm on a buddys gps hand held
so are you saying you picked up over 1000 RPM with the pump rebuild ? Were any other changes made?

[Dogballs]

:rolleyes:

[H.B.delux]

Yes. went to smaller cut, added another carb, loader,smoothing inside of bowl, diverter. the tach is fine

[Squirtin Thunder]

HB Delux,
Where are you out of ?
I have a GPS you can use.
I also have a Norskog speedo.

[Cs19]

Hillbilly deluxe, something aint right on this deal.Tell us more

[H.B.delux]

northern CA. clear lake is where i go my old lady has a cabbin on the water there

[Squirtin Thunder]

northern CA. clear lake is where i go my old lady has a cabbin on the water there
I will be in Merced for the Sanger Reunion in Sept. We can hit the Sac river.
BTW they let you run that on there lake ? Man I have been stopped more times there in one day than my whole life on the water. And I had mufflers in.

[H.B.delux]

What do you want to know. I am new to this I dont race, Im more into engine building and machineing. I did work on the bowl ,like I was porting out heads. This was the first time i rebuilt a pump.

[H.B.delux]

Every time I go on that lake I am suprised I dont get kicked off. The boat is
so dam loud and the lake so big and quiet. The sheriff came by the dock
at the house one time in his turd of a boat but did not stop. I try not to run the boat too long and piss off other houses

[steelcomp]

Must be a slow night here in Jet Boat Land. Way to rally the boards Hillbilly Delux. People are trippin all over their shoe laces for this one.No doubt. This is sum funny stuff. :D

[Cs19]

Is someone being a hillbilly and pullin our chain on this one?

[IMPATIENT 1]

Is someone being a hillbilly and pullin our chain on this one?
nah guys, he stuck a berk impellor in a dom. pump and left the wearring out, that'd be a easy 1k rpm gain;) :D :D :D :D sounds like somebody otta be checking clearence between the impellor wear surface and their wearring;) or the impellor is clearenced to a 1/2inch:rolleyes:

[Sleeper CP]

Probably has it set to the 6 cyl. setting.:)
I'll go with that :rolleyes: It's that or when he did his pump rebuild he really jacked something up with his port work.:idea: In any case something doesn't smell right.
Sleeper CP

[squirt]

http://i37.photobucket.com/albums/e70/fleetimus/short%20shot/HPIM0183.jpg
Is your hull the same as this??? If so, keep it under 70 mph and live a long life. I had my BBC in this hull for a short time. It hooked at 80 mph and I left a trail in the seat a foot wide. The deep vee does not like coming down at speed!!!!!!!
I went for a ride in it too, with the same results. After I got out of that thing it had rally stripes:eek: