mjollnir

I ordering fuel lines for my project C3 corvette with a LQ4.

I have a Walbro 255 pump (http://www.summitracing.com/parts/vpn-gsl392)

This pump is rated 60 psi max


I was about to order this tubing for the fuel feed: http://www.jegs.com/i/JEGS-Performan...15101/10002/-1

But then I noticed it is rated up to 25 psi.

This another one is rated 35 psi: http://www.jegs.com/i/Moroso/710/65340/10002/-1

Again, not enough to match my Walbro rated at 60 psi.

So what tubing should I buy? Should I go braided all the way from pump to fuel rail?

mjollnir

No idea guys?

ss1

iTrader: (32)

I didn't realize the aluminum tubing was tested to such a low pressure. I imagined it was much higher and OK for use with fuel injection.

Fwiw, a while back I remember somebody mentioned using aluminum tubing with AN fittings and the tubing started to leak after a while. Not sure what the deal with that is.

ss1

iTrader: (32)

Here it is...

https://ls1tech.com/forums/fueling-i...lb-system.html

mjollnir

Thanks for input

I'm going for 304 grade stainless steel rated well over 1000 psi. Single Flare 37° as used in high pressure industry and AN fittings

This article helped me much:

http://www.hotrod.com/projectbuild/f...s/viewall.html

You can find 1/2" 50 feet rolls for less than 80 bucks, could do a few cars with that

stevieturbo

I used this, it's rated to 250psi. That said, over the years it has been on my car, it has developed pinholes in 2 places that needed repaired. This was with no external marks or damage to the pipe. Would struggle to recommend any alloy line again, although it is still on my car.

http://www.russellperformance.com/mc/fuel/lines.shtml

Teflon lined hose is only really needed if the lines run inside the car.

Old Geezer

iTrader: (3)

"Teflon lined hose is only really needed if the lines run inside the car."

Or, if you don't want the garage to stink like fuel...................

mjollnir

Yeah Stevie I read some horror stories about aluminium leaking, especially at flares. I guess it's too soft

lol geezer

stevieturbo

In my case it was on a straight section. The only common thing in both leaks, was it occurred right at a rubber P-clip that was securing the pipe. Which made even less sense.