MINI2

Boris · May 15th, 2004, 09:18 PM

I just got a chance to install a 19% pulley on a 2003 build JCW. The stock & 15% pulley size is from a previous post, don't know who measured the size, but its seems correct.

Stock 2.585"
JCW 2.285" 11.61% reduction
15% 2.200" 14.89% reduction
19% 2.070" 19.92% reduction

The measurements of the JCW & 19% pulleys was done at O.D. of the "V". It was measured on all ribs to be the same.

Funny how the JCW is rated at 200hp while actually using only a 11.6% reduction. Maybe there is something to the efficency of the coating on the supercharger, maybe its all in the ecu and exhaust. Definately a point up for debate. I will be very interested in how this car performs in the next couple of weeks.

Regards,
Boris

2BlueMCSMRdstr · May 15th, 2004, 09:21 PM

Hmmm... will be interested to see what kind of performance numbers you'll be putting up with that new pulley on the JCW.

May 15th, 2004, 09:18 PM	#1
Boris MINI2 Regular Join Date: Sep 2002 Location: New Jersey, USA Local Time: 05:38 PM Posts: 107 Offline	FYI : Pulley diameters I just got a chance to install a 19% pulley on a 2003 build JCW. The stock & 15% pulley size is from a previous post, don't know who measured the size, but its seems correct. Stock 2.585" JCW 2.285" 11.61% reduction 15% 2.200" 14.89% reduction 19% 2.070" 19.92% reduction The measurements of the JCW & 19% pulleys was done at O.D. of the "V". It was measured on all ribs to be the same. Funny how the JCW is rated at 200hp while actually using only a 11.6% reduction. Maybe there is something to the efficency of the coating on the supercharger, maybe its all in the ecu and exhaust. Definately a point up for debate. I will be very interested in how this car performs in the next couple of weeks. Regards, Boris JC Works - MCS Chili Red w/White spinning a 19% - Euro Gruppe Tuning

May 15th, 2004, 09:21 PM	#2 (permalink)
2BlueMCSMRdstr Ducati Corse Join Date: Jan 2004 Location: Southern California Local Time: 02:38 PM Posts: 126 Offline	Hmmm... will be interested to see what kind of performance numbers you'll be putting up with that new pulley on the JCW. 2004 JCW MCS (including all exterior and interior JCW enhancements) upgraded to Cooper Motorsport 225 HPD Kit plus Cooper Motorsport Flywheel, Quaife LSD, Schrick cam 1998 M Roadster

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Rate This Thread
Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FYI Rusting Pulley causing squeaking at cold start	warped	Faults & Fixes	6	Oct 17th, 2006 02:29 PM
Just FYI	EefsJ_JArc	General Discussion	5	Feb 27th, 2005 05:46 AM
A/C problems: FYI	photon	Faults & Fixes	15	Aug 3rd, 2003 06:41 AM
FYI Insurance	JCIP	Finance & Insurance	0	Jul 2nd, 2003 02:04 AM

MINI2

Fuel for your MINI obsession

From air-filters to exhausts and all in between, discuss them here

Today
Sponsors	Sponsored Links Registered members do not see Google Ads posts, they can also post messages, pictures, and classified adverts. Register your free account today and become a member of MINI2 - MINI Forum

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)