complete fuel system setups

[o2camaross]

Ok guys, there are a bunch of fuel system threads out there, but a lot of them are just bits and pieces of the system. So I decided to make a thread for anyone to post their fuel system setups so users know what works and what is necessary for their power goals. Im wondering what exactly i need for my fuel system for my turbo build right now, so i think this may be a good way to get a bunch of information in one place. So guys with 500+ rwhp, what is your complete setup??

[farmtruc]

550hp systems. Walbro pump or equivalent. Return style fuel lines. 60lb injectors. If spraying meth this setup will support more.

600hp -700hp. Twin pumps. 80lb injectors. Aftermarket fuel rails would be a good idea.

800hp plus. Ur gonna hear about "my buddy made 900hp blah blah on twin pumps and stock fuel lines yadiyadi. Just build you a good system with a good 1000hp pump. External aftermarket regulator. 100lb injs. 1/2" feed line or more/bigger. Fuel rails. Correct fuel line configuration. And be done and be done the first time. When u get to this point with Ur build, a fuel system is the last thing u wanna worry about.
You don't wanna wonder if one of the three pumps in the tank is working or weak. With one pump you know!

Now take this advice with a grain of salt. There are a lot of setups running on less but i think this might be a good baseline and not the standard. This is just my opinion.

[George C]

i like the twin intank pump setups. Ive ran this and no issues, others have issues

like allen said spend it once!!!

this is what i run
-6 from each intank to a distribution block. -8 to the passengerside rail crossover in the front. regulator on the back of driverside rail then return to tank with -6. I run the walboro F20000 pumps they are rated at 100 psi. [typical walboros are only rated for 60 psi when pushed past that they start to lose effecency] I have FIC 95lb injectors which are rated at 43.5 base fuel. At 68 base fuel they are 118lb injectors

I ran the setup above on E85 on low boost and made over 800 rwhp with duty cycle being 75%, if i was doing a fuel system mainly for E85 then i would add another pump or at that time go with a large good single. I would use -10 as my feed and -8 as my return

for a Gas setup the setup above will do the job fine with no issues.

twin pumps done right wont have any major issues. Alot of ppl prefer to run one off a hobbs switch, i run my in parallel together. wire them up together and one dies it will short the fuse. youll know instantly if one pump is dead. replace fuse and limp home on 1 pump. on a hobbs switch you dont know if one pump is dead or not. Ppl will say you will shorten the life of the pumps and boil the fuel running them together. 3 yrs of this setup and not one issue....a down fall with a huge single is if that pump fails your stuck on side of road.



now the whole series of pump idea, your still trying to pull fuel thru one pump. youre not getting enough volume with doing a piggy back setup

this is my experiences....what works for one might not work best for the next

[o2camaross]

thanks for the input guys! Both very knowledgeable guys so I really appreciate it. Im going with the fuel rail setup just like you said George and Im going to go with -8 feed and a boost referenced fp regulator after the driver side fuel rail. Then -6 return. Few more questions, I have a left over fuel pump from a chevelle 502 fuel injection build my dad and I did a few years back. This thing is huge and if I can use it, I would like to since I have it already. I read some where it can support 700-800 rwhp. Here is a link to it. http://www.summitracing.com/parts/ACC-75709/ according to the specs on summits site, it flows 110gph, I did the math and its right at 416lph. So can I run this pump? If so, how do I go about getting my -8 feel line into the tank and down to where it needs to be? I was thinking I could remove the stock pump and run some copper tubing from where the stock pickup is and run it out the top of the bucket somehow.

[TurboMic]

2 a1000 pumps, one on all the time, one on a 10 psi hobbs switch. even if the second one doesn't come on, Im good for most boost levels. and when I run at the track I have a hot switch to the second pump, so no worry if its on or not. -10 line from each pump to fuel rails, external a1000 regulator, -8 return to tank, fuel rails that came with the vic Jr intake, 120 lb injectors. I ran 1 a1000 for a while. but new setup wanted more fuel. works great

[TurboMic]

pump says 330 hp forced induction application. i would not use it. just my .02

thanks for the input guys! Both very knowledgeable guys so I really appreciate it. Im going with the fuel rail setup just like you said George and Im going to go with -8 feed and a boost referenced fp regulator after the driver side fuel rail. Then -6 return. Few more questions, I have a left over fuel pump from a chevelle 502 fuel injection build my dad and I did a few years back. This thing is huge and if I can use it, I would like to since I have it already. I read some where it can support 700-800 rwhp. Here is a link to it. http://www.summitracing.com/parts/ACC-75709/ according to the specs on summits site, it flows 110gph, I did the math and its right at 416lph. So can I run this pump? If so, how do I go about getting my -8 feel line into the tank and down to where it needs to be? I was thinking I could remove the stock pump and run some copper tubing from where the stock pickup is and run it out the top of the bucket somehow.

[o2camaross]

yea i saw that too but my roommate looked up a few threads and apparently summit is way off. He found a lot of info saying that it will support like 700-800. I will try to find those threads. Thanks for the input!! Your setup sounds wicked mic

[o2camaross]

here is the same pump but from a different website http://performanceparts.com/part/Accel/75709
and another http://paceperformance.com/i-6111431...cel-75709.html
and another http://www.race-mart.com/Accel-ACL-75709.html
according to all of these they say its good for 500LBph and 1000 hp NA and 840 hp FI
I also checked the accel website online catalog and they say the same thing

[TurboMic]

yea i saw that too but my roommate looked up a few threads and apparently summit is way off. He found a lot of info saying that it will support like 700-800. I will try to find those threads. Thanks for the input!! Your setup sounds wicked mic

thanks, its my 3rd system. like said before, there will be a lot of "my buddy said or did" stories. But the bottom line is you don't want to risk your engine and turbo over a cheap pump. Even running the best stuff there is a risk, but much better chance of success with quality parts. good luck with your build.

[TurboMic]

if 840 hp fi is correct, then you should be good to go for a 500 rwhp setup. always remember these are generalized flywheel hp ratings too. My a1000 fell short before my 1000 rwhp mark was reached. try it out, if it can't keep up, nothing lost.

here is the same pump but from a different website http://performanceparts.com/part/Accel/75709
and another http://paceperformance.com/i-6111431...cel-75709.html
and another http://www.race-mart.com/Accel-ACL-75709.html
according to all of these they say its good for 500LBph and 1000 hp NA and 840 hp FI
I also checked the accel website online catalog and they say the same thing