Fuel Pressure !!!???!!!

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09-27-2004, 07:50 PM

Heatmaker

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Fuel Pressure !!!???!!!

With engine off and pukmped primed... pressure is 42psi
With engine on and Vaccum hose on and engine on Pressure is 38-39psi
With engine on and Vaccum hose off Pressure is 45-46psi

All of this is on a new 255pump..... is my regulater bugging or what?

09-27-2004, 10:27 PM

Heatmaker

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Re: Fuel Pressure !!!???!!!

idears greatly appreciated...

09-27-2004, 10:47 PM

'94 Bad A Z28

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Re: Fuel Pressure !!!???!!!

Nope, that's about right...

09-27-2004, 11:56 PM

roguedriver

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Location: Albuquerque, NM.

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Re: Fuel Pressure !!!???!!!

Thats what mine is with my 255.

Ken R.

09-28-2004, 12:13 AM

jdizzell

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Location: Orlando, FL

Posts: 527

Re: Fuel Pressure !!!???!!!

That sounds perfect to O.E.M specs. Also a higher volume fuel pump will not effect your fuel pressure at idle or normal driving. Will see it effect it at WOT.