S2000 Under The Hood S2000 Technical and Mechanical discussions.

SC Pulley Size

Old 05-13-2019, 08:28 PM
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Default SC Pulley Size

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!

Last edited by Tempest161; 05-13-2019 at 08:34 PM.
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Old 05-13-2019, 10:04 PM
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I am in a situation very similair to you, and we talked about it recently here :

You can use this calculator to estimate the smaller pulley you can put, to respect the SC max rpm:

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 ??
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