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Fuel Pressure

  • Thread starter Thread starter Turkey Sammich
  • Start date Start date May 21, 2007

Turkey Sammich

I can't fap normal. I cracked a rib, then my ankle
Jul 12, 2006
0
59
154
May 21, 2007
#1
  • May 21, 2007
  • #1
What should the fuel pressure be at on a nearly stock 93 LX?
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
May 21, 2007
#2
  • May 21, 2007
  • #2
For some reason, 39lbs or so with the vacuum line disconnected rings a bell.
 

Turkey Sammich

I can't fap normal. I cracked a rib, then my ankle
Jul 12, 2006
0
59
154
May 21, 2007
#3
  • May 21, 2007
  • #3
Any reason it would decide to go from 39 down to 33?
 

Flavadave4

Active Member
Nov 28, 2003
1,044
21
49
Utica, NY
May 21, 2007
#4
  • May 21, 2007
  • #4
With the vac line off and the car at a warm idle it sould be around 39psi......do you have an adjustable regulator?
 

Turkey Sammich

I can't fap normal. I cracked a rib, then my ankle
Jul 12, 2006
0
59
154
May 21, 2007
#5
  • May 21, 2007
  • #5
I have a Paxton fuel pressure regulator with a Summit Fuel Pressure Gauge.
 

91 HATCH

Banned
May 17, 2007
262
0
0
illinois
May 21, 2007
#6
  • May 21, 2007
  • #6
Turkey Sammich said:
I have a Paxton fuel pressure regulator with a Summit Fuel Pressure Gauge.
Click to expand...

I WOULD TURN IT UP.YOUR PUMP MIGHT BE GETTING WEAK AND GIVING THE LOW PSI
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 22, 2007
#7
  • May 22, 2007
  • #7
Above is correct (I think). 38-39 PSIG at simulated WOT (vac line off and capped). Once the vac line is reinstalled, a stockish cam will have you at 32-33 PSIG, though anything over 30 PSIG is within spec as I recall.

Good luck.
 

donsbad68

Immensely Educated
Jan 4, 2003
838
0
0
Oklahoma
May 22, 2007
#8
  • May 22, 2007
  • #8
38-39 PSI with vacuum line off, along of blown stuff I tend to run 41-42 PSI
 
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