Quote:
Originally Posted by 750hp
Guys have had problems running a cog belt on centrifugal blower without a big enough bypass valve. As you get off the throttle for a gear change, if you can't dump all of that compressed air immediately it can reverberate back to the blower. As the cog belts don't allow some slippage like a serpentine belt, this can lead to them shearing teeth in higher boost applications.
Decent bypass valve solves the problem completely.
To answer your question - supercharged engines don't hate gearboxes, but most driveline parts will hate the power of a supercharged engine if they're not designed as part of a complete bulletproof package...
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Interesting Craig, never thought about those issues. My experience is only twin screw blowers with the throttle body upstream of the blower, not downstream as with a centrifical blower. I would've thought the impella would cavitate rather than breaking gears but when the impella is spinning 50,000 plus revs then anything's possible. Don't know why anyone wouldn't run a bypass valve though, they make sooo much sense.