Quote:
Originally Posted by gmd2003
I can't remember the crank off the top of my head but i got the smaller 79mm pulley from ESS for the blower with my 525 upgrade. Needless to say i do have slippage problems so I'm thinking about getting a significantly larger supercharger pulley.I'm only seeing 7.5 psi max in 5th gear due to slip so i will prob make more boost with a larger blower pulley lol. I was just so happy to not be running lean i didn't want to mess with it for a bit .
George
Edit I have a 135mm crank pulley with the Vt525 kit.
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This would mean that you will need a retune once there isnt slippage, assuming you want to keep the same afr's.