FPR range/ratio
07-05-2006, 03:30 PM
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Car: 1985 full-size Blazer
Engine: 350 Goodwrench
Transmission: custom 700R-4
Axle/Gears: 9.5" 4.88 with discs and anti-wrap.
FPR range/ratio
I'm wondering how much change you guys see in your fuel pressure from idle vacuum to no vacuum. I always understood that the job of the FPR was to keep the pressure drop across the injector constant. With mine, I am only seeing the pressure drop by about half as much as the vacuum I apply to it. I don't know if it's critical to have this 1:1 ratio or not. I'm also not sure if it is because I modified the stock regulator to be adjustable.
Thanks
Thanks
07-13-2006, 06:52 AM
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Car: 1985 full-size Blazer
Engine: 350 Goodwrench
Transmission: custom 700R-4
Axle/Gears: 9.5" 4.88 with discs and anti-wrap.
Hmm.. I figured somebody had made a fuel pressure measurement at idle sometime.
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