pullys
03-20-2004, 10:42 AM
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pullys
i have a 99 gsr motor and i want to taake out the a\c pully and put a new one in some one tell me the differnce form under and overdrive pullys and which one would be better for higher rpm
03-20-2004, 12:36 PM
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Re: pullys (dstring20)
Most underdrive pulley are poorly balanced and could damage your crank or it's bearings.
I've never heard of overdrive pulleys but underdrive pulleys ad a larger pulley to the dynamo and a smaller one somewhere else to keep the belt from getting slack.
The larger pulley causes the dynamo to turn slower and draw less power from the engine. So I guess overdrive pulley do the opposite. but why?
Maybe for a larger dynamo on a big audioinstall.
I've never heard of overdrive pulleys but underdrive pulleys ad a larger pulley to the dynamo and a smaller one somewhere else to keep the belt from getting slack.
The larger pulley causes the dynamo to turn slower and draw less power from the engine. So I guess overdrive pulley do the opposite. but why?
Maybe for a larger dynamo on a big audioinstall.
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