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Question about fuel pressure and AFPR

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Old Oct 5, 2006 | 07:20 PM
  #1  
87ROCZ's Avatar
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From: Newfoundland, Canada
Car: 1987 Camaro IROC-Z
Engine: L98 bored .40 (357 ci)
Transmission: Race Ready 700R4
Axle/Gears: 9 bolt 3.70 posi
Question about fuel pressure and AFPR

What effect would having the vaccum line disconnected from the AFPR have on my fuel pressure?

When I was at the track last time, I bumped up the FP with my AFPR but forgot to reconnect the vaccum line... went for a run and ran the best run of the day... could have been a fluke but I think I'm leaning out on top end.

Other than the obvious small vaccum leak I created... I was wondering if me leaving the vacuum line off increased or decreased my fuel pressure???
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Old Oct 5, 2006 | 08:16 PM
  #2  
roachjuice's Avatar
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From: Tulsa
Car: 86 Omni GLHT
Engine: 2.2 Turbo/Intercooled
Transmission: 5 speed
Axle/Gears: 3:85
Originally Posted by 87ROCZ
What effect would having the vaccum line disconnected from the AFPR have on my fuel pressure?

When I was at the track last time, I bumped up the FP with my AFPR but forgot to reconnect the vaccum line... went for a run and ran the best run of the day... could have been a fluke but I think I'm leaning out on top end.

Other than the obvious small vaccum leak I created... I was wondering if me leaving the vacuum line off increased or decreased my fuel pressure???
it will bring the fuel pressure up.... like WOT fuel pressure at idle...
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