N/ALS1

iTrader: (1)

I would like to know what size an adapter I need to connect billet fuel rails to the oem fuel line? I know the sizes are 5/16 and 3/8 but which one is the correct one to buy to connect to the SS lines. Thanks

N/ALS1

iTrader: (1)

http://i870.photobucket.com/albums/a...y/aa6f72c6.jpg

http://i870.photobucket.com/albums/a...y/4b89d86a.jpg

What type of fuel system is it?

smokeshow

iTrader: (16)

Looks like a factory return style. Just need a pushlock fitting for the lines and the rest of your fuel lines plumbed up however you want, braided stainless, etc..

neilownz

Return style. You need both 5/16 and 3/8.

N/ALS1

iTrader: (1)

So it is a return style. My best question is do I need a for? I seen alot of threads with turbos but not na. And how do I route it? Fuel line to rail to crossover to rail to return? Thanks for the help.

blade7022

iTrader: (5)

For billet rails your going to have to get an FPR (if you didn't know). For my system that I am planning for my 408, I am bringing the factory line to the regulator, return from reg. to factory return line. Then running the out to a Y fitting and plugging the other end of the rail.

Fittings I am going to use:

3/8: fitting - http://http://www.summitracing.com/parts/RUS-640940/
5/16" fitting - http://www.summitracing.com/parts/RUS-640930/

N/ALS1

iTrader: (1)

That answers another question, thanks. Is it the size of the billet fuel rails that requires an FPR?

blade7022

iTrader: (5)

The stock regulator is built into the stock crossover between the rails. So if you remove the stock rails, you have to add in a regulator. Which rails are you looking at?

Atomic

iTrader: (42)

Generally you want the regulator after the rails so the regulator only has to handle the excess fuel and not all of it. On a NA setup I doubt it will matter though.

blade7022

iTrader: (5)

That is the reason why I am doing it that way. It is easy, cheaper, and I don't see fluctuations in fuel pressure being to big a deal in a "smaller" cube N/A setup. On boost, not so much.