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Wondering what carb to install on my boat... Here is what i got:
460 Ford, D00E-R intake, Berk jet drive, B impeller. Plan a rebuild soon... prolly 514 or 532ci, and a new intake as well - so i want something that will work for both new and old motor.
Right now the motor runs 4800rpm at WOT...
First decision: 650, 750, 850 cfm?
2nd decision: Vacuum or Mechanical Secondaries?
3rd: Get a BG Sea Demon right? :D
Just wanted to add its a 19' boat. Current carb wont let the boat start up without holding it to the floor - it has gotten worse over time... I think its a 650, may be a 600. definately a holley :p
Other than that it has excellent throttle response. Previous owner rigged the secondaries to remain open all the time when past 1/4 throttle - so the thing runs well, just chew A LOT of gas...
[ July 15, 2003, 09:16 AM: Message edited by: Snorider ]
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For a Lake Boat seeing those RPMs a BG Sea Demon 750 would work best for ya. Otherwise a Holley 750 is also suitable.
Vacuum or Mechanical? Personaly I like mechanical, but a properly tuned Vacuum secondary is also very potent on the water.
The only downside on vacuum secondaries,in everyone's eyes but mine, is adjusting the secondary opening rates. No problem. Today's market offers adjustable vacuum houseings where you can remove the spring without taking off the canister, it's been around for a long time now but they aren't as robust as the newer designs.
The other killer new option is the Billet externaly adjustable vacuum canister. It only uses a screw to adjust the amount of pull the diaphragm sees on the secondaries. Hallet19 will have this set-up added to his TPC 790-VSR carb as soon as it's finished at the shop. It's a way to really put the VS carb back in power.
BG Sea Demon's? :confused: :D Come on now...LOL
Now if you're going the 514 route....then definitely step up into an 850DP (Annular booster). The BG Sea Demon's will seem rich from the start but with some patience you can detune them a bit. I don't think they have Annular boostered Sea Demons, but if ya came upon a junked out one I could build it to specs.
The 825 Race Demon in my Avatar was a junker that inherited a new baseplate, all new polish/powdercoat, new gaskets, floats, hardware, boosters, etc etc. It can be done.
Second time editing this post...
Those RPMs are probably being limited by that little carb. It has straight leg boosters which are starving that motor. I would bet that a 750DP would fetch another 5-600RPM alone.
[ July 15, 2003, 09:27 AM: Message edited by: Hotcrusader76 ]
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I cant wait for my new billet piece. Ty put the billet base plate on my carb and the setup looks sweet !! I personally like the vac. secondary for the fuel economy. My boat is not a speed boat and under cruise, it uses half the gas a DP would use. Call me crazy, but I like going long distances in my boat and not burning money on gas.
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My .02, if I may,
My Ford 460 ran a Holley 850 Double Pumper w/o any problems whatsoever. This was with thru-transom exh, aluminum intake and 10.5:1 compression. It worked flawlessly.
I'll bet you can dial one in for your current set-up and also be able to reconfigure for the larger cube engine.
LO
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Those BBFs love fuel...
Give it the spurs and you'll never regret it. :D
God I love Fords...now only if I can mount my distributer in the front of my BB ch&^y :D
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Go with the 850 d/p....BBFs love airflow
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I run twin stern drive mildly built 460's in my 27 . Put holley comp 830's on them with 88f/94r jetting , runs great.Also like not having a choke circuit to load it up , dont do a lot of winter driving :D . NG
[ July 16, 2003, 07:05 AM: Message edited by: not guilty ]
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Hotcrusader76:
Those BBFs love fuel...
Give it the spurs and you'll never regret it. :D
God I love Fords...now only if I can mount my distributer in the front of my BB ch&^y :D And drag down a great motor?? you keep your rear dist chubby junk.
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Does anyone sell an adapter for the weiand high rise so you can mount 1 4barrel on it instead of 2? I really like the look of a high-rise (and the performance gain too), but i just dont want to dig that deep for a pair of new carbs...
Otherwise, a pair of 650s should do me fine right?
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Snorider:
Does anyone sell an adapter for the weiand high rise so you can mount 1 4barrel on it instead of 2? I really like the look of a high-rise (and the performance gain too), but i just dont want to dig that deep for a pair of new carbs...
Otherwise, a pair of 650s should do me fine right? If you are going to do that why not buy a good single plane intake and forgo the lean/rich dealio with a single carb tunnel ram set up. Victor would work really well.
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Blown 472:
Snorider:
Does anyone sell an adapter for the weiand high rise so you can mount 1 4barrel on it instead of 2? I really like the look of a high-rise (and the performance gain too), but i just dont want to dig that deep for a pair of new carbs...
Otherwise, a pair of 650s should do me fine right? If you are going to do that why not buy a good single plane intake and forgo the lean/rich dealio with a single carb tunnel ram set up. Victor would work really well. I agree. there are alot of folks on here that have had problems with the single four on a tunnel ram. either bite the bullet and buy 2 carbs and a shit load of gas or run a single 4 intake. You can't always have your cake and eat it too.....
Omega
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Im running a 1150 Dominater on a victor Jr on my BBF which has an Eagle 514 kit in it. Boat pulls hard right up to the rev limiter at 6000 rpm. Cold starts and idles great, throttle response is great. Warm starts are touchy. You dont touch the throttle till she lights. This setup pushes my 21.5 omega day cruiser to 63 so far. Jacuzzi WJ with B impeller runs about 5200 rpm @ 63
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Nice oldphart, but i think an 1150 would drown my stock 460... I am not really prepared to throw a stroker kit in my motor, the boat really needs a paintjob.
Might just bore it .40 or .60 over and remove the exhaust humps from the D3VE's. A Victor intake seems like the way to go - dont really want to buy 2 carbs yet.
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mines not really all that radical, motorsports cam, cobra jet aluminum heads, verrry large logs, milodon pan & pickup. Idles just lumpy enough that nobody asks if its stock, but it has real good manners. you can get the victor Jr with the standard holley bolt pattern too. that way if yer a speed junky youve already got a real good manifold and won't have to upgrade
