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Author
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Topic: fuel pressure
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Sydewayz_Stan
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Member # 10217
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posted
 
 
i have stock 19# injectors, stock fpr, and stock fuel pump,
i just installed a rail mounted gauge to see where my fuel pressure is at
idle w/o vacuum: 40psi
idle with vacuum: 32psi
when i hit the throttle by hand, it peaks to 40 quickly (fraction of a second) and stays at about 30-32 while i still have the throttle open
does this sound right?
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-90 Vert-SOLD
-91 Notch-SOLD
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-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
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turbo50
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Member # 6700
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posted
For christs sake upgrade your shit when you put the fresh motor with heads/cam and intake in it!!!!
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Sydewayz_Stan
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Member # 10217
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posted
LoL im putting a 190lph pump tomorrow and i got 24# injectors, sn95 rails, afpr, and matching maf sitting on the shelf waiting to slap on, and i will be getting a tune after the motor and fuel components are installed
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-90 Vert-SOLD
-91 Notch-SOLD
-2000 Explorer 5.0-SOLD
-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
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Sydewayz_Stan
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Member # 10217
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posted
ok i installed the 190lph pump yesterday and the pressure changed slightly
psi at idle w/o vacuum: 40 psi
psi at idle with vacuum: 36 psi
my pressure increased while the vacuum hose is attached, so my pump was probably going bad, right?
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-90 Vert-SOLD
-91 Notch-SOLD
-2000 Explorer 5.0-SOLD
-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
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turbo50
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Member # 6700
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posted
quote:
Originally posted by sydewayzLX50:
ok i installed the 190lph pump yesterday and the pressure changed slightly
psi at idle w/o vacuum: 40 psi
psi at idle with vacuum: 36 psi
my pressure increased while the vacuum hose is attached, so my pump was probably going bad, right?
No, it was just a stock pump more than likely.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Sydewayz_Stan
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Member # 10217
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posted
yea it was definently stock, the ford emblem and "95 LPH" was stamped on the old pump
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-90 Vert-SOLD
-91 Notch-SOLD
-2000 Explorer 5.0-SOLD
-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
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OneFastHatch.
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Member # 9537
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posted
mine was just gold .... i installed a 255 in mines. the sn95 fuel rails bolt right up? do u see a better performance? i have 24's and a matching MAF i want to install
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1991 fobra (slow)
Posts: 2139 | From: bay area | Registered: Oct 2009
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Sydewayz_Stan
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Member # 10217
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posted
I only installed the pump and the guage, i still have to install the rest, i have to order gaskets for my edelbrock manifold before i start cuz i have to pull the upper part off
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-90 Vert-SOLD
-91 Notch-SOLD
-2000 Explorer 5.0-SOLD
-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
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