Geared

Looking for a stock fuel system schematic - most notably how all the lines are run.

I am seeing 80+ psi on cold starts, and around 70ish idling. Takes a while to get down to 60ish...then depending on RPM - my pressure jumps around from 55-75 while driving....at other RPM's its steady. All and all it seems a little high tho. Car has a boost a pump, and is supercharged.

i have read a few threads that a small kink in the line can cause high fuel pressure...and I want to check everything.

http://www.freeasestudyguides.com/gr...automotive.png

Geared

Yes, 08z here. Thanks!

Geared

thanks! now to find which line could be kinked, and causing HP

Geared

Anyone know where the return line is

wstaab

OEM C6/Z06 is a return less system. The pressure regulator is in the stock fuel pump in the left tank. It bypasses fuel directly into the tank.
Fuel line runs along the left side of the tunnel with the rear brake lines. Look at item 15 in the diagram above.

djfury05

I highly doubt you have a kink in the lines. Try a DIFFERENT fuel pressure gauge before you go on a wild goose chase. They are not all created equally.

Additionally, bypass the boost a pump and run the car with stock wiring and see what the fuel pressure does.