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Discussion Starter · #1 ·
Has anyone installed on of these things (like the Unorthodox Racing one
sold by corksport.com)? What kind of performance improvement did
you see? I'm running an essentialy stock 91 EGT.

thanks,
-kal
 

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You have to be carefull. On the BP engine (the one in all 1991-1996 escort GT's) the crank pully includes the harmonic balancer. So if you replace it with the UR underdrive crank you will be removing that. Not a great idea IMHO.
 
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