Enough fuel pump?
#2578280
11/14/18 09:52 AM
11/14/18 09:52 AM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Here is what i have. 65 Dart 3380 lbs, 408 dynoed at 504 hp, mainly street, a few trips to the track planned. I now have a Carter electric 65gph 6psi no regulator needed pump. From cell to Fram large filter -10, 3/8 fittings and hard line with no sharp turns to a regulator at rear of motor, regulator set to allow max flow/no resistance. I could put a gutted regulator body in its' place if it will help. The car runs great at WOT till after the 2/3 shift, then it felt off a bit but i have no pressure gauge to go by. I want to switch to a 65 Mustang gas tank in this car so if a better pump becomes a need, suggestions on a very low noise system would be appreciated. What do you all think? Pump OK? Pump marginal? Just too small?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Enough fuel pump?
[Re: gregsdart]
#2578345
11/14/18 01:23 PM
11/14/18 01:23 PM
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Joined: Oct 2008
Posts: 1,176 East Coast
A/MP
super stock
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super stock
Joined: Oct 2008
Posts: 1,176
East Coast
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If your not stumbling or lagging from launch to 1-2 shift, then your pump is keeping up with with the launch inertia which is the first major issue with launching and fuel volume. If only investigating fuel issues, then your bowls might be running out of fuel. 65 gph is too little for a 408. That output is good for a stock motor. Maybe a Holey Blue at least. I like the Black Gerator. Handles all fuels and the pump is quiet enough, yet its easy to listen for when trouble shooting. Don't forget a return line, can be from the rear fuel filter,before the pump,or at the carb. Paper element filters, in general, swell and reduce the fuel flowing through. Add some extra moisture from pump gas and that can be an additional restriction. A streetable stroker SB can easily perform with a 950 carb. Its an indication of how much fuel it wants. When it comes to fuel, bigger is better, 1/2" fuel line, easy flowing direction( as you've done) and a larger adjustable pump remove any fuel delivery issues.
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Re: Enough fuel pump?
[Re: gregsdart]
#2578407
11/14/18 03:28 PM
11/14/18 03:28 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
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I Live Here
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Posts: 19,317
State of confusion
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Here is what i have. 65 Dart 3380 lbs, 408 dynoed at 504 hp, mainly street, a few trips to the track planned. I now have a Carter electric 65gph 6psi no regulator needed pump. From cell to Fram large filter -10, 3/8 fittings and hard line with no sharp turns to a regulator at rear of motor, regulator set to allow max flow/no resistance. I could put a gutted regulator body in its' place if it will help. The car runs great at WOT till after the 2/3 shift, then it felt off a bit but i have no pressure gauge to go by. I want to switch to a 65 Mustang gas tank in this car so if a better pump becomes a need, suggestions on a very low noise system would be appreciated. What do you all think? Pump OK? Pump marginal? Just too small? BS on no regulators EVER imo because those toy pumps can and do spike higher than needed at times and can drop dangerously low at higher r's.........seen it personally and fuel pressure control goes deeper than most know..........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Enough fuel pump?
[Re: gregsdart]
#2578478
11/14/18 06:35 PM
11/14/18 06:35 PM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Thanks guys. Being a mainly street rod with a nice quiet exhaust and a great radio, i will go with the EFI pump. About $500 for a tank,pump/fuel sender kit for a 65 mustang, which will fit nicely because i have removed the spare tire well. Being cheap never pays. When i bought the Carter i was thinking it would be quiet enough and cheap to boot. Not so much π
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Enough fuel pump?
[Re: gregsdart]
#2578512
11/14/18 08:24 PM
11/14/18 08:24 PM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Fury, it has a Quickfuel 850 on it. The noise issue is pushing me to go in tank. I promised the Mrs this would not be a race car,,,,,,,π car weighs 3380 with me in it, so it is pretty snappyπ I do want to run Sportsman class a few times for fun, 12.00 and slower footbrake is the bracket, so i don't have to mess with a rollbar or jacket.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Enough fuel pump?
[Re: gregsdart]
#2578535
11/14/18 09:54 PM
11/14/18 09:54 PM
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Joined: Oct 2007
Posts: 4,205 New York
polyspheric
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New York
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Common in-tank EFI pump uses industry standard 43.5 psi, which increases flow in your stock fuel line dramatically.
Boffin Emeritus
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Re: Enough fuel pump?
[Re: gregsdart]
#2578542
11/14/18 10:12 PM
11/14/18 10:12 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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Fury, it has a Quickfuel 850 on it. The noise issue is pushing me to go in tank. I promised the Mrs this would not be a race car,,,,,,,π car weighs 3380 with me in it, so it is pretty snappyπ I do want to run Sportsman class a few times for fun, 12.00 and slower footbrake is the bracket, so i don't have to mess with a rollbar or jacket. How are you going to slow it down to 12.00?
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Enough fuel pump?
[Re: madscientist]
#2578597
11/15/18 01:06 AM
11/15/18 01:06 AM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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At a minimum i will let it shift on its' own. Full forward standard type valvebody. I am not sure what i want to do to take more ET out of it and still have a killer mph. Gears are 3.55, and will run 28 inch slicks.
Last edited by gregsdart; 11/15/18 01:08 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Enough fuel pump?
[Re: gregsdart]
#2578607
11/15/18 01:30 AM
11/15/18 01:30 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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At a minimum i will let it shift on its' own. Full forward standard type valvebody. I am not sure what i want to do to take more ET out of it and still have a killer mph. Gears are 3.55, and will run 28 inch slicks. My math says you should be in the 10.70ish range at 124 or so. To slow it down that far, you'll need to pull 2 plug wires and hire a 450 pound driver.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Enough fuel pump?
[Re: gregsdart]
#2578709
11/15/18 01:27 PM
11/15/18 01:27 PM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Thanks Cab. I am going to go with the intank deal, and it will get rid of the iritating pump noise. Too bad the whole deal is that pricy. Anybody need a good fuel pump for thier garden tractor?π
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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