what fuel systems do you guys run?? and what size line?

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what fuel systems do you guys run?? and what size line?

Post  racinghabbit on April 23rd 2012, 2:29 am

over 500 cid race engine what do you guys do for electric pumps (brands) and what size lines?
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Re: what fuel systems do you guys run?? and what size line?

Post  yellowhorse7 on April 23rd 2012, 8:44 am

Gasoline. Magnafuel 500 pump, -10 feed, -8 on the bypass, -6 to the carbs and n20 fuel. Magnafuel regulators although I will be switching both n20 regs to Holley
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Re: what fuel systems do you guys run?? and what size line?

Post  dfree383 on April 23rd 2012, 8:59 am

^^^ Same..... But not switching to Holley reg's.

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Re: what fuel systems do you guys run?? and what size line?

Post  Barney on April 23rd 2012, 9:40 am

(2)Mallory Comp 250, -10 feed, Weldon 4 port, -6 to carbs and nitrous, Mallory reg for nitrous side.
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Re: what fuel systems do you guys run?? and what size line?

Post  whitefield on April 23rd 2012, 9:46 am

yellowhorse7 wrote:Gasoline. Magnafuel 500 pump, -10 feed, -8 on the bypass, -6 to the carbs and n20 fuel. Magnafuel regulators although I will be switching both n20 regs to Holley

What if you are running 8an for feed and return on a smaller engine would that be ok ?
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Re: what fuel systems do you guys run?? and what size line?

Post  kjett on April 23rd 2012, 9:49 am

Aeromotive A2000 pump with -10 line to the reg and -8 to the carb on the motor side, -8 from the pump bypass back to the tank. Holley blue pump with -8 lines to the bypass reg and -6 to the solenoid on the nitrous side, -8 back from bypass reg to the the tank. Both regs are Aeromotive.

Oh, and this is feeding my little 466 Cool
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Re: what fuel systems do you guys run?? and what size line?

Post  yellowhorse7 on April 23rd 2012, 9:52 am

whitefield wrote:
yellowhorse7 wrote:Gasoline. Magnafuel 500 pump, -10 feed, -8 on the bypass, -6 to the carbs and n20 fuel. Magnafuel regulators although I will be switching both n20 regs to Holley

What if you are running 8an for feed and return on a smaller engine would that be ok ?

Should be fine on the feed but it really comes down to volume needed for said application. -8 is the minimum for the bypass/return side. I just finished a 68 mustang with a 427w and I used -10 feed but -8 would have been fine. I just did it for growth purposes as the guy wants to now put an F2 on it....
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Re: what fuel systems do you guys run?? and what size line?

Post  BigBlockRanger on April 23rd 2012, 11:01 am

FYI - An undersized return will make it difficult or impossible to get the fuel pressure down. I had a -8 feed and -6 return and could not get the fuel pressure below 10-12 psi.
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Re: what fuel systems do you guys run?? and what size line?

Post  jbozzelle on April 23rd 2012, 11:52 am

Magnafuel pump and reg. -10 feed to the reg and -08 return from the pump.

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Re: what fuel systems do you guys run?? and what size line?

Post  racinghabbit on April 23rd 2012, 12:09 pm

anyone got any pics of there reg and and return set up ???
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Re: what fuel systems do you guys run?? and what size line?

Post  racinghabbit on April 23rd 2012, 5:10 pm

I have two truck to do the fuel systems on in a couple weeks.. a couple pics would be a lot of help..
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Re: what fuel systems do you guys run?? and what size line?

Post  whitefield on April 23rd 2012, 6:16 pm

My return an feed are both 8an and fuel psi is 7.5 with a mallory pump and regulator. Could this cause a lean condition on top end pull ? Rolling Eyes
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Re: what fuel systems do you guys run?? and what size line?

Post  yellowhorse7 on April 23rd 2012, 7:25 pm

whitefield wrote:My return an feed are both 8an and fuel psi is 7.5 with a mallory pump and regulator. Could this cause a lean condition on top end pull ? Rolling Eyes

Not likely unless pump is cavitating
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Re: what fuel systems do you guys run?? and what size line?

Post  Dave De on April 23rd 2012, 8:37 pm

547 motor on E85 with Aeromotive 1000 pump #10 lines to Aeromotive regulator #8 return and #6 feeds to both bowls.
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Re: what fuel systems do you guys run?? and what size line?

Post  CP598 on April 27th 2012, 11:16 pm

racinghabbit wrote:over 500 cid race engine what do you guys do for electric pumps (brands) and what size lines?

Weldon Sportsman pump, -10 from tank to pump, -10 from pump to a Product Engineering regulator, -8 bypass, -6 to carburetor.
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Re: what fuel systems do you guys run?? and what size line?

Post  Doug Rahn on April 28th 2012, 6:04 am

-10 from fuel cell to first filter (100 micron) which is mounted directly to pump (Aeromotive A1000), -10 to second filter (10 micron), -10 to bypass four port regulator (Aeromotive 2000), -6's to carbs, and -8 return to the fuel cell which enters from the top of the cell with a hard line inside to the bottom of the cell. I also have a pressure gauge in the return side to keep tabs on that side of the system, stays between .5 to 1 psi cheers .
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Re: what fuel systems do you guys run?? and what size line?

Post  Dave De on April 28th 2012, 9:29 am

Doug Rahn wrote:-10 from fuel cell to first filter (100 micron) which is mounted directly to pump (Aeromotive A1000), -10 to second filter (10 micron), -10 to bypass four port regulator (Aeromotive 2000), -6's to carbs, and -8 return to the fuel cell which enters from the top of the cell with a hard line inside to the bottom of the cell. I also have a pressure gauge in the return side to keep tabs on that side of the system, stays between .5 to 1 psi cheers .

It looks like I copied your system except I dont have the return line in the cell. It is needed when the cell is 1/2 empty to stop pulling air in.
Did you have the same problem?

Dave
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Re: what fuel systems do you guys run?? and what size line?

Post  Doug Rahn on April 28th 2012, 9:43 am

Dave De wrote:
Doug Rahn wrote:-10 from fuel cell to first filter (100 micron) which is mounted directly to pump (Aeromotive A1000), -10 to second filter (10 micron), -10 to bypass four port regulator (Aeromotive 2000), -6's to carbs, and -8 return to the fuel cell which enters from the top of the cell with a hard line inside to the bottom of the cell. I also have a pressure gauge in the return side to keep tabs on that side of the system, stays between .5 to 1 psi cheers .

It looks like I copied your system except I dont have the return line in the cell. It is needed when the cell is 1/2 empty to stop pulling air in.
Did you have the same problem?

Dave

No! I don't remember where I read it, but there was an article about building up a static charge from pumping fuel in from the top of the fuel cell. The main reason I did it was to keep from aerating the fuel. If you look at factory installations the return line goes to the bottom, at least it did on the factory pumps I have replaced.
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Re: what fuel systems do you guys run?? and what size line?

Post  psfracer on May 1st 2012, 2:25 am

Aeromotive A2000, -10 line to pro stock regulator, -8 lines to carb. -8 return from pump to fuel cell. I am going to add a Y - block and a second aeromotive regulator for the nitrous system.
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Re: what fuel systems do you guys run?? and what size line?

Post  2fox on May 11th 2012, 1:23 am

I currently runing a.408 w.too Holley.blues 2 6' s. Gong in to YBlock with 10out to Carb 1000cfm demon.

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