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Diff. pulley... SIZE matters ?

Diff. pulley... SIZE matters ?


Old 08-18-2009, 05:43 AM
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Questions?? Diff. pulley... SIZE matters ?

question is: since we have choice of many differential pulley ( 32,34,38 th)

does the size affect handling AND why ?

is bigger pulley better (ex: Stock ) and smaller for MOD

thanks for your input !
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Old 08-18-2009, 05:56 AM
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Bigger is better. The belt is wrapped less tightly and is in contact with more teeth at any one time, so transfers the power more efficiently.

The compromises come with packaging, for example driveshaft angle and the height of the CofG.

Seems like pulleys in the high-30s, low-40s are about the limit on a touring car. A few years ago the pulleys tended to be in the low-30s.
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