Fuel System sizing help

[black cotton]

Need some help from the experienced 4g guys here. I ran a few searches and was not satisfied with the information I had found.

My set up is very radical, and I need a fuel system to support it. The fuel system must be capable to support 600whp, on e85.

I currently have a 255 Intank 6an feed and return, 3/8 bore rail, and 1400cc injectors.

I feel that the pump, lines and rail are currently my restrictions. What are my options for the most ideal set up?

I have considered dual intake pumps with individual feeds, Y'd return to regulator, and one very large return to tank.

Or switching to just a single external pump, 8an feed and return, just not sure of rail size or pump size?

Any and all info is welcome.

 

[pj91gsx]

Ive seen people on here go with dual walbro pumps, which makes you need an AFPR. 1 walbro 255hp will overpower the stock fpr at idle. Which route you go is up to you. Paul volk uses dual walbros on his compound setup, so its a proven way that works. Of course you might need a bigger fuel line and fuel rail to make fuel delivery more effiecient, you dont know until you try.

 

[black cotton]

Alright let me specify.

My current set up is a stock sender, with a 255lph walbroh, 6an feed, to custom aluminum rail 3/8 bore 6an inlet and outlet, aeromotive 1-1 regulator 6an return.

I built a stroker motor, much larger turbo, expecting over 600whp on new set up.

One Walbroh and 6an feed/return will NOT suffice. What do you 4g63T guys do to sustain proper fuel pressure and volume as such power levels, running E85?

 

[pj91gsx]

If its not getting enough fuel, put 2 walbros in the tank. Somewhere in this thread he shows his dual walbros in action. http://www.dsmtuners.com/forums/custom-fabrication/336541-my-compound-turbo-set-up-5.html

 

[Absit]

Your pump and injectors won't support 600 WHP on E85. I don't know about your lines and rail, I do know OEM 2G Turbo lines/rail are fine for 600 WHP, but I don't know if the N/Ts had significantly different lines/rails.