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Typical fuel pressure drop at WOT?

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Typical fuel pressure drop at WOT?

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Sep 1, 2006 | 12:01 PM

#1

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Typical fuel pressure drop at WOT?

I would like to know what, if any, fuel pressure drop is normal at WOT in a turbocharged car.

My normal cruising fuel pressure is right about 59-60 psi, but during WOT under boost it drops to about 54-55 psi. Is this normal?

I am not running a boost referenced fuel pressure regulator at this time, but plan to in the future when I up the power.

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Sep 2, 2006 | 01:11 AM

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fp drop is not ideal under WOT.

dual intank pumps?
bigger lines?
add fpr

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Sep 3, 2006 | 02:06 PM

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It is typical to see fuel pressure drop from 58-60 psi to approx 54 psi at wide open throttle. Bob

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