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10-24-2004, 01:55 PM
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#1 |
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Registered User
Join Date: Nov 2003
Location: Midland Tx
Posts: 185
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Fuel Pressure help!
I have a 1993 chevy shortbed had a 350 in it the stock injectors are 55lb i changed them out to 65 and i think the stock fuel pressure is 13psi where would it need to be to make them run good and can u tell a difference in power adjusting it higher up
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10-26-2004, 10:40 AM
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#2 | |
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Registered User
Join Date: Jun 2004
Posts: 45
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Quote:
1998 thru 1995 .................................. 9 to 13 psi 1995 and later V6 and small block V8.....................60 to 66 psi 7.4L V8 engines.............................56 to 62 psi If adjustable, I woludn,t increase the pressure to much more than 2 - 3 % for fear of blowing out the seals in the injectors or some where along the delivery system. Rich 
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PEOPLE THAT THINK THEY KNOW EVERYTHING ARE PARTICULARLY ANNOYING TO THOSE OF US THAT DO !! Dropped 93 Chevy Std Cab, 454 SS conversion, 20 in Centerlines, Wrap Around Ground Effects |
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10-26-2004, 06:36 PM
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#3 |
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Registered User
Join Date: Nov 2003
Location: Midland Tx
Posts: 185
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Fuel Pressure
Imeant the stock injectors flow 55lbs and hour and i changed mine to 65lbs an hour
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10-26-2004, 09:38 PM
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#4 |
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Registered User
Join Date: Jun 2004
Posts: 45
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Okay, what did the 65lb p/h nozzles come out of or did you buy them aftermarket? If they came out of or are intended for a specific application, you will more than likely have to supply fuel pressure that is specified for that intended application. If you bought them aftermarket, the supplier should be able to tell you what they are intended to fit. Hope this helps
Rich
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PEOPLE THAT THINK THEY KNOW EVERYTHING ARE PARTICULARLY ANNOYING TO THOSE OF US THAT DO !! Dropped 93 Chevy Std Cab, 454 SS conversion, 20 in Centerlines, Wrap Around Ground Effects |
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