7.3 lift pump pressure? - Diesel Bombers



Ford Powerstroke 99-03 7.3L Discussion of 99-03 7.3 Liter Ford Powerstroke Turbo Diesels

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Old 02-18-2010, 01:56 PM
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Default 7.3 lift pump pressure?

Does anyone know what the lift pump pressure should be on a 2000 7.3?
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Old 02-18-2010, 03:53 PM
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i have mine set about 68psi
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Old 02-18-2010, 04:43 PM
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thanks for the info, my pump is still stock so should it be making 68psi? Also I noticed you have your IPR shimmed, what does this do for performance? Sorry for the dumb questions
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Old 02-18-2010, 05:02 PM
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Quote:
Originally Posted by 77scoutracer View Post
Does anyone know what the lift pump pressure should be on a 2000 7.3?
You do not have a lift pump... You have a fuel pump.

Factory pressures are anywhere from 40 to 70 or so. You can shim the Fuel Pressure Regulator to what ever you would like, but anything over 70 and you risk blowing the fuel bowl cap off or fuel leaks and your over working the pump.

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Originally Posted by 77scoutracer View Post
thanks for the info, my pump is still stock so should it be making 68psi? Also I noticed you have your IPR shimmed, what does this do for performance? Sorry for the dumb questions

He does not have his IPR shimmed, he used to have his FPR shimmed but now is running an aftermarket fuel pressure regulator.

Raising the fuel pressure does nothing for performance so long as your pump is maintaining 50psi or better.
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