Piston Problems?? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 3 Old 07-02-2003, 03:33 PM Thread Starter
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Piston Problems??

Has anyone ever had any problem with melting pistons? My uncle has a 1993 Lightning that has 48,000 original miles on it. He has some mods done to it including mass air conversion, headers, exhaust, racing tranny, Paxton Novi GSS Supercharger that makes about 10lbs of boost on a good day. A while back he melted the #1 piston. That piston was his fault because he forgot to turn down the timing after reinstalling the blower and it detonated. On Saturday we were going to the store and went around the corner and heard a loud whooosh sound and smelt something really bad and the truck died. Try to start it and doesn't turn over. We cut the blower belt off of it and it tries to turn over. We finally get it to barely start before it died again. It was knocking real bad. We hobbled it home (it was less than a block away) and did a compression test. No compression in the #3 cylinder this time. Has anyone had problems with destroying factory pistons in the 351?


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post #2 of 3 Old 07-03-2003, 05:46 PM
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I know several people that have problems with the hyper pistons. Get rid of them, put some good forged stuff in there.

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post #3 of 3 Old 07-17-2003, 06:13 PM
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Sounds like detonation issues. I haven't had any problems with mine and the truck has over 55,000 supercharged miles on it - Brian

87 Mustang Coupe YS-trimmed R-306 w/23lbs. of boost, Edelbrock heads, custom cam 233/241, Performer 5.0 intake, 75lb. inj., best et: [email protected]
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