Everyone running high fuel pressure
07-21-2003, 06:51 PM
#1
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Location: Red Deer, Canada
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Car: 89 Shortbox
Engine: 350 Vortec
Transmission: 700r4
Everyone running high fuel pressure
I'm running 32psi at wot, and 25 at idle. I haven't had any problems yet, but I only drive my truck a hour a week or so. I'm wondering if anyone is running this high, or higher, and if they've had any injector problems.
07-21-2003, 11:02 PM
#2
While I personally have not run TBI injectors at that high of a pressure, I did come accross this article while doing FPR research where the author addresses this. Here is the link. http://www.diy-efi.org/gmecm/faq/tbi_fp.html According to him, you should be fine.
07-22-2003, 12:45 AM
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Car: 89 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Seems really high to me, if it's not running rich then i guess it would be ok. Most seem to run 18ish psi at wot and 8-10 at idle, for a Vafpr. With just a afpr most seem to be running 12-20 psi. I don't think you could hurt our big a s s injectors.
07-22-2003, 03:42 PM
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Car: '91 t-top RS; '91 hrdtp Z28
Engine: LO3;383tpi
Transmission: 700r4;very nice 700r4
Axle/Gears: 4.10 zt posi, 3.70 auburn
You should me fine Low. I'm running 22psi all around (unfortuantly, I have no vacuum reference on my afpr) with out a problem. I have had it up to 25psi, I only brought it down because 22psi worked better for my application via track tuning. Jon runs his injectors @ 28psi, and as far as I know, hasn't had any problems.
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