Underdrive Pulley

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08-27-2010, 09:05 PM

ChitownLS1

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Underdrive Pulley

What underdrive pulley did you go with?
Why?
Where did you get it?

Thanks.

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08-28-2010, 06:53 AM

maxspeed05V

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Vette style Powerbond 10%underdrive pulley .

I do sometimes wish I just went with the 25% but its not worth changing again.

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08-28-2010, 08:05 AM

scatillac

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Quote:

Originally Posted by ChitownLS1

What underdrive pulley did you go with?
Why?
Where did you get it?
Thanks.

ATI #917278 (10% UD) for: (1) better harmonic damping on the 4" crank (2) minor parasitic relief via the 10% UD and (3) can be reconfigured with different pulley combos on same hub if so desired.

I believe Summit special order.

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