6togo

iTrader: (13)

I have SS ptfe -8 for a feed line and SS -6 for a return but starting to second guess myself if i should use -10/-8 on my pump gas 1000-1300whp TT build anyone running the smaller lines making those HP #'s without issues?
And if so did you Y the lines at the rail to dual feed them with -8 or drop to
-6?

superiorstyles

let me ask you a question that will help me and Ill answer yours too. I have the 2002 Camaro SS plastic gas tank what are the size of the feed and Return so I can buy the Push on fitting for it?

as for your question I would go 10 / 8 just in case in the future you want more out of your set up. you want to make sure the fuel is there and you don't have to go back and redo the job. you can y the at the rail just to make sure both get equal amount and use the 8an

6togo

iTrader: (13)

I doubt I will go past that 1300whp mark with this car and if I did I could run a second -8 feed line. Sorry can't help on your fitting sizes I'm not playing with a Fbody.

93Z2871805

iTrader: (5)

3/8 and 5/16 if it's the same as an LT1 tank.

superiorstyles

@93Z2871805 thank you

How do I get the 5/16 to 8an ?

93Z2871805

iTrader: (5)

What pump, injectors, and psi?

superiorstyles

racetronix pump for 02 Camaro LS1 and it's going to be carb blow through turbo 8an feed and I wanted 8an return too.

superiorstyles

PM so 6togo can get some help with his and not see us in his lol

93Z2871805

iTrader: (5)

http://www.summitracing.com/parts/rus-644113/overview/

This would get you up to a -6, then you could use one of these

http://www.summitracing.com/parts/sum-220844b/overview/

or these (depending on whether you need male or female end)

http://www.summitracing.com/parts/fr...8-bl/overview/

superiorstyles

thanks yea I saw some from XRP and I thought of doing that but I wanted to see if their other ways or a straight forward way

.boB

iTrader: (1)

I use a -8 feed and -6 return to feed a 600 hp NA SBF. Even on e85, it doesn't run lean at 7,000 rpm's.

You're only going to get as much flow as your smallest restriction. If you adapt a -5 line to a -8 line, you're only going to get as much flow as a -5 line will allow. You'll need to replace everything from the pick up to the fuel rails.

93Z2871805

iTrader: (5)

Cut the hardline and flare it with a B-nut.

93Z2871805

iTrader: (5)

True story. This is the exact reason I went to a fuel cell and a Holley Dominator pump -10 from the cell to the rail, and a -8 return. Admittedly though, my fuel system is way overbuilt (I do this kind of stuff for a living, on a larger scale though, lol), but I'll never have to worry about starving the engine.

superiorstyles

nice so I should be good with 8an feed and 6an return since I'm only looking for 500 to 650hp. thanks

93Z2871805

iTrader: (5)

Keep in mind his power level is NA with a BSFC of between .45 and .50 (although an E85 setup may be different), if you're on boost, your BSFC is .60 - .65. Also, if you're coming out of a stock Fbody tank and keeping the hardlines coming off of the sender, you're smallest restriction is 3/8 (-6) supply and 5/16 (-5) return regardless of what you adapt to those lines. With that being said, there are tons of members on here using stock(ish) fuel supplies to feed 500-700hp setups.

EDIT: in doing a little research, it appears the BSFC for E85 NA is .63-70, so his setup in theory would feed yours boosted on gas.

superiorstyles

ok cool thanks

6togo

iTrader: (13)

Let me just back in here probably be using two 340 pumps Intank with a Hobbs and around 160lb Injectors may keep the base psi at 43 lbs and plan to boost to around 18psi.

93Z2871805

iTrader: (5)

I would err on the safe side and do a -10/-8. It's pretty cheap to run hardline and B-nuts vs doing steel braided throughout.

6togo

iTrader: (13)

I have -8/-6 Fragola line already!

93Z2871805

iTrader: (5)

In reality, you could just replace the -6 and use the -8 for the return.