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03-12-2004, 03:04 PM
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#1 |
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Garage Queen Material
Join Date: Oct 2002
Location: USA
Posts: 4,129
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fuel pump question
i have a 110gph Holley mech. fuel pump.
is there anything i need to do to make sure that the psi and the fuel delivery is good? i remember dave was having problems with his fuel pump and he had to get a regulator. this says i dont need one. |
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03-12-2004, 04:00 PM
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#2 |
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www.73-87chevytrucks.com
 
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Fuel pressure for a carb needs to be regulated down to 5-7lbs.
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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03-12-2004, 05:00 PM
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#3 |
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Garage Queen Material
Join Date: Oct 2002
Location: USA
Posts: 4,129
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03-12-2004, 05:07 PM
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#4 |
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BeWarE tHe eViL CrAnkTOe!
Join Date: Oct 2002
Location: Yukon, OK
Posts: 3,605
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Eric, I have mine regulated down to 4.5 -5psi and its so rich it stinks and blows fuel out the back like a smoke cloud when On it hard.
 Dont know WTF is up
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~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - 1986 Chevy Custom SWB *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods  www.cardomain.com/id/ramairdave AIM Screenname - Jester84 |
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03-12-2004, 09:04 PM
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#5 | |
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I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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Quote:
 Actually Dave sounds like your floats are messed up.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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03-12-2004, 09:07 PM
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#6 | |
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Registered User
Join Date: Sep 2003
Location: Lewisville, NC
Posts: 1,836
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Quote:
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1985 Scottsdale Shortbed 4x4 Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch. 2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle. |
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03-12-2004, 09:22 PM
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#7 | |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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Quote:
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03-13-2004, 02:28 AM
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#8 |
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Garage Queen Material
Join Date: Oct 2002
Location: USA
Posts: 4,129
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i'm thinking of going with an edelbrock just so i wont have so much trouble keeping it tuned. i dont mind if i loose a little power by going with them. if i'm gonna want to drive it as much as i want to, i want it to be really really reliable
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03-13-2004, 04:00 AM
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Registered User
Join Date: Jun 2003
Location: Fort McMurray, Alberta, Canada
Posts: 513
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Quote:
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Ben 1983 Silverado SWB 305 2002 Silverado Extended Cab 5.3 http://members.shaw.ca/bkennett |
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03-16-2004, 11:32 PM
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#10 | |
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Registered User
Join Date: Feb 2004
Location: west texas
Posts: 71
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Quote:
you need a heavier spring because you are actually feeling a flat spot during initial acceleration, because the secondaries have already begun to open and have weakened the fuel delivery signal to the primary boosters. The engine is struggling to increase speed and what you actually feel are the secondary nozzles crashing in as the engine finally reaches the speed where it provides the proper fuel delivery signal to the primary and secondary venturi. The secondaries must not open until the engine requires the additional air. This allows torque to increase along the peak torque curve. You should only feel a smooth increase in power if you have the proper secondary spring.
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The way of a fool is right in his own eyes:but he that hearkeneth unto council is wise. Proverbs 12:15 |
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