P.Griffin

I run E85 in my B5 S4, but have to this point kept my Z06 mostly stock. I am not as familiar with tuning this platform, so hopefully some of you can provide me with some more information. For anyone running E85, how does the stock fuel pump hold up in terms of flow/pressure? I would be going with heads and cams at the most, but more than likely just basic bolt-ons.

I also just took some Green Giant injectors off my S4, which I believe will fit in the Z06 due to the EV1 connections. I imagine that these will provide more than enough flow as long as the fuel pump can maintain pressure.

Any insight would be greatly appreciated!

Lonnies Performance

iTrader: (16)

The pump capability depends on the year of the car.

The C5 up to '02 may go to about 400rwhp on E85.

The '03 up Z06 will go to approx 500rwhp on E85.

Based on your EV1 injectors, I would assume youy have the early style C5 fuel system.
This assumes normally aspirated.... your results may vary as I cannot predict the condition of a used fuel pump.

SKULL

iTrader: (7)

Have you converted your car yet? I plan on doing this in the next few weeks