MINI2

Alvinjn · Jul 11th, 2005, 05:59 AM

Was wondering what is the size of the JCW supercharger's pulley reduction? Anyone knows if the JCW kit can take a 17% reduction pulley? I've bought the Alta lighten crank pulley with 2% oversize & would like to fit it. Wondering if there will be to much stress on the SC or will it over rev the SC.

Thanks for any information that i can get. My car is already after the official warranty period.

minigolf · Jul 11th, 2005, 06:38 AM

IIRC it is 13%.

From what I have read I would expect a 17% reduction pulley to be okay on a JCW kit, but I'm not sure where you'd go in regards to software upgrades (if you needed one).

You've paid good money for a JCW kit, why do you want to mod it with aftermarket bits?

Alvinjn · Jul 11th, 2005, 07:06 AM

Just found it that its like 14.3%. So i'm wondering if its ok to fix a lighten crank pulley with 2 % oversize making it like 16.3%.

Anyone with a 17% pulley? How is the reliability. Wouldnt want to blow the SC.

Jul 11th, 2005, 05:59 AM	#1
Alvinjn MINI2 Newbie Join Date: Jul 2005 Local Time: 05:12 AM Posts: 13 Offline	What is the size of JCW SC pulley? Was wondering what is the size of the JCW supercharger's pulley reduction? Anyone knows if the JCW kit can take a 17% reduction pulley? I've bought the Alta lighten crank pulley with 2% oversize & would like to fit it. Wondering if there will be to much stress on the SC or will it over rev the SC. Thanks for any information that i can get. My car is already after the official warranty period.

Jul 11th, 2005, 06:38 AM	#2 (permalink)
minigolf Blue is the colour! Join Date: Jul 2003 Location: Canberra, Australia Local Time: 08:12 AM Posts: 14,097 Offline	IIRC it is 13%. From what I have read I would expect a 17% reduction pulley to be okay on a JCW kit, but I'm not sure where you'd go in regards to software upgrades (if you needed one). You've paid good money for a JCW kit, why do you want to mod it with aftermarket bits? Sabine Schmitz: Fear disturbs your concentration.

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Jul 11th, 2005, 07:06 AM	#3 (permalink)
Alvinjn MINI2 Newbie Join Date: Jul 2005 Local Time: 05:12 AM Posts: 13 Offline	Just found it that its like 14.3%. So i'm wondering if its ok to fix a lighten crank pulley with 2 % oversize making it like 16.3%. Anyone with a 17% pulley? How is the reliability. Wouldnt want to blow the SC.

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