I was wondering how much power guys were making on here with the factory 4th gen lines. I'm trying to decide wether or not Im going to need larger Braided stainless lines for my turbo setup. anybody seeing 600+ hp with factory lines/rails?

 

Should not be a problem. I'm making 800HP at the flywheel with a -6AN supply line.... same diameter as the factory 3/8" plastic line.

 

I made 700rwhp with factory lines, rails, and regulator. You should be fine with 600hp from a turbo (better BSFC than a centrifugal).

Rich

 

thats awesome.
I bought all of the an lines and fittings for my oil system last week at the local speed shop, jaw dropped when they rang up the bill.
Does anybody know of a boost sensitive fuel pressure regulator for the factory lt1 rails?