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Fuel pressure drops.

  • Thread starter Thread starter Brett88lx
  • Start date Start date Oct 23, 2006

Brett88lx

New Member
Sep 3, 2006
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Oct 23, 2006
#1
  • Oct 23, 2006
  • #1
--------------------------------------------------------------------------------

Excuse me for the ignorance but I have a question.

I have a 302 w/ GT40P's, B303, rockers, Mass air and 24lb's.

1.) What should my fuel pressure be at?

and

2.) Is my fuel pressure supposed to drop(guage) after I shut the car off or is it supposed to stay where it's at on the guage?

Thanks in advance for any responses/advice.
 

bullitstang1313

Member
Jan 21, 2003
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Indianapolis / Columbus, Indiana
Oct 24, 2006
#2
  • Oct 24, 2006
  • #2
Fuel pressure should be around 39 psi with the vacuum line off. Fuel pressure should not drop after the engine stops unless something is leaking.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Oct 24, 2006
#3
  • Oct 24, 2006
  • #3
It will eventually bleed down, and aftermarket AFPR's are much more likely to see a quick bleed down.
There's no reason to keep the fuel lines pressurized once the car is shut off. When you go to restart, the prime quickly repressurizes things.

Good luck.
 
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