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> Question on Fuel Pressure D-Jet
Strudelwagon
post Sep 17 2012, 01:52 PM
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Ok, I have a 74-2.0 still injected and wanted to know how critical the exact 29psi is? If I was like 30 or 31 lets say....would it run rich? or if I was 27 or 28psi...you get the idea.
My gauge shows just a hair above 30psi....should I care?

Thanks
SW
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SLITS
post Sep 17 2012, 02:01 PM
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The amount of fuel injected is a function of fuel pressure and the milliseconds that the Injector is triggered.

So, yes

Adjustments in fuel pressure can effect whether the car is rich or lean.

I have set them as high as 32 psig. At some point, the fuel pressure will over-ride the control spring in the injector making it like a mechanical injector. I don't know where the upper point is.
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