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Fuel system advice needed

iTzTMG

By iTzTMG,
in Engines & Forced Induction

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iTzTMG Contributor

iTzTMG

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Hey guys,

I'm slowly piecing together my build and I'm in need of some advice on fuel lines for my build and hope some of you could chime in.

Parts I already have:
- Dual Walbro 460's (intank)
- Twin entry, center return fuel rail with AN6 fittings
- Fuel Lab fuel pressure regulator with AN6 fittings
- ID1000 injectors
- Fuel used will be 98 pump gas

I am looking at buying a billet fuel hat and have a few options for the feed and return fittings, either: single AN6/AN8/AN10 feed, dual AN6/AN8 feed and single AN6/AN8 return.

So my questions:
- As my FPR and fuel rail are fitted with AN6 fittings will it be okay to run dual AN6 lines from the fuel hat to the rail and a single AN6 return? Will this be enough to support @800hp without too much pressure drop?
- Would it be better to run a single AN8 or AN10 feed line to the front and have a Y split to dual AN6 lines to the rail and AN6 return?
- How do you guys rate the Raceworks hoses and fittings? Any good?

*The car will be used as a street/drag car, forged RB25DET, it will run a 6466, nitrous (wet), manual and whatever boost is needed to run at least 10's

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https://www.sau.com.au/forums/topic/478021-fuel-system-advice-needed/
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R.3.2.G.T.R Grand Master

R.3.2.G.T.R

Posted
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I'm going through this process at the mo, plan is to use the hicas lines for feed and return, fpg adapters for hicas to -8, split to -6 to dual feed hks rail, turbosmart fpr1200 reg, id1750 injectors and fpg intank kit with twin walbros, Teflon fuel lines

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iTzTMG Contributor

iTzTMG

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10 hours ago, sneakey pete said:

ID1000's will not outflow a single -6 line, though i presume with Nitros you'll be upgrading injectors?

-6 can feed my 1300cc's with no issues.

 

Thanks, for now I will be using the ID1000's as I already have them but if I eventually run out of injector I can easily upgrade them, the fuel lines I'd like to do once.
I don't see myself needing bigger injectors than 1300's in the future so good to know -6 at the rail will be fine.

The nitrous kit is a wet system so the extra fuel will come through the solenoid so upgrading injectors will not be needed because of nitrous.

8 hours ago, burn4005 said:

man im running 500awkw of e85 through stock 5/16" line so anything better than that will be fine.

Thanks, good to know!

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