Belt sizing help

timbo3282

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May 20, 2005
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Austin, TX
I am in the process of installing the Ford Racing/Whipple supercharger upgrade in my 2003 Cobra.

As part of the install I upgraded the supercharger idlers with the 4 pulley kit. It has 3 100mm idlers and a 90mm idler. I have the stock 3.5" upper pulley on the supercharger and a stock crank pulley.

I checked on stangshiftergaskets.com for the belt length but my particular combination isn't up there. Is there anyone out there running this combination and if so what belt length is correct for this application?

This is holding me up right now so any (quick) help is appreciated.

Thanks!!
 

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