return or deadhead
#3121868
02/15/23 09:09 PM
02/15/23 09:09 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
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OP
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hi guys, carburetor guys carburetor guys let’s talk fuel systems. What are most of you guys running return system or are you dead heading please share car and ETs. Motor etc.
Last edited by RAY1969CARS; 02/15/23 09:13 PM.
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Re: return or deadhead
[Re: CMcAllister]
#3121873
02/15/23 09:35 PM
02/15/23 09:35 PM
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Joined: Aug 2003
Posts: 5,025 new jersey usa
11secdart
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master
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Posts: 5,025
new jersey usa
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68 Dart .. 527 hp small block runs 10.90s - Product Engineering pump and filter combo ....return is on the pump returns thru -8 hose back to the cell ..-10 line from pump to regulator in front of car .. have been as fast as 10.40 with this pump set up but with a different motor
Last edited by 11secdart; 02/15/23 09:43 PM.
68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV
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Re: return or deadhead
[Re: rebel]
#3121910
02/15/23 11:20 PM
02/15/23 11:20 PM
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Joined: Jan 2004
Posts: 4,632 Motor City
6PKRTSE
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master
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Motor City
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Single 4bbl on a deadhead. Using a Magnafuel pump with a bypass at the pump. Running 8.9s on pumpgas. Similar, but with dual 4 bbl and mine is an Aeromotive 3000 pump with the bypass and filter at the pump. Also street car on pump gas.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: return or deadhead
[Re: DusterKid]
#3121956
02/16/23 09:23 AM
02/16/23 09:23 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
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Posts: 4,457
Washington
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Return. I can’t think of a reason to not use a return line, but Shilo says his is a dead head system and his stuff runs…well…FREAKING HARD.
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: return or deadhead
[Re: madscientist]
#3121964
02/16/23 09:59 AM
02/16/23 09:59 AM
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Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
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master
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Posts: 2,981
A shed in England
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MagnaFuel 500 2 x -10 pick up with -8 return at the pump. -12 to the reg (Aeromotive) and -8 to the 2 x 4 Dominators. Overkill for the fuel system but I was chasing a fueling issue (top end lean out) at the time and upsized all the fuel lines. The fueling system turned out not to be the issue but according to the data it helped
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: return or deadhead
[Re: RAY1969CARS]
#3121965
02/16/23 10:02 AM
02/16/23 10:02 AM
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Joined: Jan 2003
Posts: 13,492 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,492
Marion, South Carolina [><]
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For several years I ran a simple deadhead system on my cuda using the little Aeromotive street rod 11203 pump and a -8 feed line. Ran 9.50s at 140+ mph at 3800 lbs. pump gas and all motor. I upgraded to the Aeromotive A1000 pump using a -10 feed and -8 return. It ran no faster, but I didn't expect it to. I went w/ the return system to help vapor lock issues on the street...and it helped greatly. Still using the same system feeding both the motor and the nitrous system well into the 8 sec range. Using a stock tank w/ a welded on sump. Two -10 feed lines Y'd at the pre-pump filter inlet. The return is plumbed into the stock pickup tube.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: return or deadhead
[Re: an8sec70cuda]
#3121975
02/16/23 11:11 AM
02/16/23 11:11 AM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
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OP
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For several years I ran a simple deadhead system on my cuda using the little Aeromotive street rod 11203 pump and a -8 feed line. Ran 9.50s at 140+ mph at 3800 lbs. pump gas and all motor. I upgraded to the Aeromotive A1000 pump using a -10 feed and -8 return. It ran no faster, but I didn't expect it to. I went w/ the return system to help vapor lock issues on the street...and it helped greatly. Still using the same system feeding both the motor and the nitrous system well into the 8 sec range. Using a stock tank w/ a welded on sump. Two -10 feed lines Y'd at the pre-pump filter inlet. The return is plumbed into the stock pickup tube. how long would it take for it to vapor lock?
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Re: return or deadhead
[Re: RAY1969CARS]
#3121982
02/16/23 11:30 AM
02/16/23 11:30 AM
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Joined: Jan 2003
Posts: 13,492 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,492
Marion, South Carolina [><]
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For several years I ran a simple deadhead system on my cuda using the little Aeromotive street rod 11203 pump and a -8 feed line. Ran 9.50s at 140+ mph at 3800 lbs. pump gas and all motor. I upgraded to the Aeromotive A1000 pump using a -10 feed and -8 return. It ran no faster, but I didn't expect it to. I went w/ the return system to help vapor lock issues on the street...and it helped greatly. Still using the same system feeding both the motor and the nitrous system well into the 8 sec range. Using a stock tank w/ a welded on sump. Two -10 feed lines Y'd at the pre-pump filter inlet. The return is plumbed into the stock pickup tube. how long would it take for it to vapor lock? When you shut the car off after it was hot and then try to restart it. If I got caught in stop and go traffic during the hot summer months it would start doing it also.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: return or deadhead
[Re: an8sec70cuda]
#3122002
02/16/23 12:15 PM
02/16/23 12:15 PM
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Joined: Nov 2004
Posts: 16,631 On the run…
BloFish
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I Live Here
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Posts: 16,631
On the run…
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Aeromotive pump, with two Aeromotive filters and Aeromotive regulator that is deadheaded. I have a separate Aeromotive regulator designed for a return, but just haven’t felt the need to change it as of yet. 500 stroker with a single carburetor puts out 615hp on the dyno.
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: return or deadhead
[Re: BloFish]
#3122004
02/16/23 12:25 PM
02/16/23 12:25 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
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I have a 69 dart with a stock fuel tank, a blue pump, going to a regulator, and I noticed a hammering type sound at the regulator and my AFR gauge would go lean
to give you a more complete picture of the fuel system, which is being switched out today however, I just don’t want to do all this at the same thing occur
It’s a 3/8 sending unit going into the pump, going into a half inch aluminum line that goes to my regulator
The new system I’m putting in is a fuel cell with a -8 line going to the pump going to the 1/2 line. plastic tank
and of course, I’m trying to rethink it and thinking about a return line
however, I know I deadhead system as work for years for most people
Last edited by RAY1969CARS; 02/16/23 12:38 PM.
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Re: return or deadhead
[Re: RAY1969CARS]
#3122028
02/16/23 01:28 PM
02/16/23 01:28 PM
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Joined: Jan 2003
Posts: 19,537 Las Vegas
Al_Alguire
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I Live Here
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Dead head stuff here on all of the cars. Weldon pumps with bypass to cell from pump set between 27-32 depending on car. All regulated down to 4.8-5lbs at carb. All 4 port Weldon regulators for single carbs. No issues ever with this setup. Been .99x-1.0 60's with this set up. Same stuff we run in the Vette. If its good enough for aerospace industry and Nasa it is good enough for a racecar.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: return or deadhead
[Re: RAY1969CARS]
#3122029
02/16/23 01:28 PM
02/16/23 01:28 PM
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Joined: Jan 2003
Posts: 19,537 Las Vegas
Al_Alguire
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I Live Here
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Las Vegas
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I guess right now I’m not 100% sure if it’s vapor lock or cavitation
Sidenote, this happens when my fuel tank is full How big is your vent?
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: return or deadhead
[Re: Al_Alguire]
#3122047
02/16/23 02:02 PM
02/16/23 02:02 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
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Stock vent on the tank it is small the size of a vacuum hose
Great point though I’m a pipefitter so you think I would probably think about that I know how important venr line is
Last edited by RAY1969CARS; 02/16/23 02:10 PM.
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