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Discussion Starter · #1 ·
I have a 2nd gen 3sgte what would be the eprformance gains if putting on an Unorthodox Racing Under Drive Pulley? Is it bad for the car...what does it specifically do?
 

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91 Turbo MR2
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The idea of the pulley is to reduce rotational mass in the engine, which is a good idea for adding power.
The problem is the pulley replaces the harmonic balancer/dampener that is needed to maintain a balanced engine.
This is not a concern if you are building a race car and plan rebuilding the engine frequently.

If you have a street car and desire longevity from your engine, I would say forget about this piece.
 

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Discussion Starter · #3 ·
Thank you for the reply. I guess this part is of no use for me, however i still have both Unorthodox Pulleys for the Turbo MR2 and NA MR2 if anyone is interested! PM me
 
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