Author Topic: Fuel Pressure  (Read 12800 times)

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Offline Steve Wood

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Re: Fuel Pressure
« Reply #30 on: November 21 2013, 01:25:53 PM »
Not sure what to tell you as something has to be restricted.  I guess drive it the way it is and it will be a bit rich at idle and sort itself out as the speed comes up.  Long as the pressure rises properly with boost, that is the crucial thing...
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline Joel Russo

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Re: Fuel Pressure
« Reply #31 on: November 21 2013, 02:21:17 PM »
Performance wise....and for street use,  would it be better to bypass the Hotwire?
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Steve Wood

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Re: Fuel Pressure
« Reply #32 on: November 21 2013, 03:27:18 PM »
If it were mine, I would find out where the restriction is and eliminate it.

If the car is capable of producing enough fuel pressure without the hot wire to sustain the boost you are running, you could remove the hot wire until such time you feel like taking the time to go thru everything.  I was hoping that blowing a 100 psi thru the line might open something but I knew that was a long shot unless it was substantially blocked with some debris.  You have three sections of rubber hose plus the possibility of a dented line that is restricting flow..and you have the entry into the fuel sender.  It takes time and patience to go thru everything.

Wiring is terrible on these cars and I would not, personally, crank the boost up to run alky or other without having full voltage to the pump.
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

 

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