Tempest161

Hoping this is the right area to post this and I am asking here because Kraftwerks has been no help. Main question is how small of a pulley can I go on my Supercharger? Looking for recommendations and I really am not wanting to add anymore to current setup which I have listed those specs below.

02 S2K
Comptech Dual Exhaust
Ballade Sports Header With Wide Band 02 Sensor
Kraftwerks 30-94 SC 100mm 7rib Pulley
Skunk2 4Bar Map
Radium Fuel Rail with Radium Pressure Regulator and Radium Dampener
Grams 1000cc Injectors
Radium Catch Cans
Doctronic ECU

Thank you in advance!

pizzai69

Hi,

I am in a situation very similair to you, and we talked about it recently here :
https://www.s2ki.com/forums/s2000-fo...hoice-1188978/

You can use this calculator to estimate the smaller pulley you can put, to respect the SC max rpm:
https://www.philanthropy.gr/rotrex/rotrex-calculator/

My C30-94 kit is from TTS Performance with a 125mm crank pulley and I have a 105mm SC pulley. This limits me to 8800 rpm regarding the C30-94 max rpm limit (or 9000 rpm with a little overspin)
I don't know the crank pulley size of your KW kit ??