Muscular Mustangs - View Single Post - 1988 Mustang LX has some PROBLEMS..please help!
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post #4 of Old 11-29-2006, 09:57 PM
Mike23386
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Join Date: Oct 2006
Location: Dighton, Massachusetts
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Well it depends what you call slow. When I first got my car and got it straightened out I ran a 13.5 quarter mile and 0-60mph in about 5.5-5.8sec with a G-Tech meter. The only mods were a flowmaster catback and shaved stock cylinder heads. Then I put turbos on it and now its supercharged. Its slow to me even though it probably runs low 12s. I would say your car should run between 14.0-15.0 the way it is now. If it does then it is not slow because of a problem, thats what stock 5.0s usually run. If your looking at about 15.0+ you may have a problem. You might want to try a compression test to see if the rings are good or not. Another easy way is to look at the exhaust when you rev it hard. If it blows out a light grayish blueish smoke its probably blow by from worn rings. When your engine is warm about 180-200F take off the oil fill cap. If you see smoke coming out it is the rings. Is the engine knocking or pinging also?? Or is it just a quick pop from the intake? As for mods how many miles are on the engine and about how long has it been sitting not running? Easy mods I do right away to every 5.0 I get are full exhaust no cats, BBK fenderwell cold air intake, MSD cap+rotor+blaster coil, FRPP 9mm wires, Bosch platinum 4 plugs, fuel filter, 255lph pump, adjustable regulator, MAC underdrive pulleys. These are standard on every 5.0 I've had. The three basic principles I follow are air, fuel, and spark. After that you can go for headers, intake, throttle body etc. it all depends what you want to do with your car.

Bright Regetta Blue 1988 Mustang GT 5.0

White 1996 Mustang GT
*Flowmaster 40 series catback
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