Quote:
Originally Posted by pbonsalb
In general, adding 50% power to a motor comes with risk. I think several thousand supercharger kits have been sold, and there are maybe 5 main bearing failures attributed to the supercharger.
It makes sense to me the load would be increased on the front main bearing. I made a post asking how one would rebuild an S65 to address this issue for a supercharger, but none of the experts responded.
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Dean kinda answered the question....although it sounds like an expensive solution.
Quote:
Originally Posted by deansbimmer
I agree that the main bearings look like they failed first and took out the rod bearings. Out of the dozens of S65's I've dismantled for parts, the only two with failed mains were supercharged with failures.....I believe the blower pulley simply places too much radial force on the crankshaft and it overworks the first main.
While I am a huge fan of blowers I have not installed one on mine just because I don't want to gamble. If I were to install one, I would also install VAC's coated main bearings if I could get the clearances right. If someone would engineer some type of girdle to support the crankshaft in supercharged S65's, I believe we'd see fewer of these main failures.
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