Unsteady fuel pressure

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02-16-2002, 12:18 PM

DM91RS

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Car: 91 RS

Engine: 305

Transmission: T5

Axle/Gears: 3.73

Unsteady fuel pressure

How steady should your fuel pressure be when driving? Mine is varying and the needle shakes at times.

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02-16-2002, 12:44 PM

89BlueTA

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If it is the same as the TPI cars then the fuel pressure will go up when there is less vacuum for about a 10 psi swing,

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02-16-2002, 12:48 PM

Vader

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11-13 PSIG is the OEM specification.

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02-16-2002, 01:08 PM

DM91RS

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Car: 91 RS

Engine: 305

Transmission: T5

Axle/Gears: 3.73

It vary's from 10 to 11.5 psi.

Is this too much?

And.... what would make it shake at times?

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