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Old 06-26-2016, 10:33 PM   #21
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Originally Posted by nitrodann View Post
Hi,

Id like to know exactly what fuel pressure returnless NB's have.

I understand that they are pressure referenced, Id like to work out what I can make with maxxed 725's on E85.

I understand that it is 60 psi, can somebosy please confirm? I have an NB8B which is fuel limited at 230whp with RX8 yellows, which seems very low... I should buy a fuel pressure test rig for my dyno.

Thanks,
Dann
I measured the pressure at the rail with a mechanical gauge.

With FIC 650s, the rail held 58psi @ 20psi boost to 7400rpm with the stock fuel pump.
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Old 06-26-2016, 10:55 PM   #22
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Originally Posted by slmhofy View Post
I measured the pressure at the rail with a mechanical gauge.

With FIC 650s, the rail held 58psi @ 20psi boost to 7400rpm with the stock fuel pump.
Damn..Thats great news! Now I need to find an e85 compatible, stock sized fuel pump. Then I should be on my way to e85 on stock fuel system with 610cc injectors...i think
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