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JCW GarageInterested in John Cooper Works (JCW) parts for your 1st Generation MINI? This is where JCW upgrades and accessories for the Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs are discussed.
Way Motor Works is excited to announce our new JCW John Cooper Works Supercharger Pulley Puller.
Since the standard pulley puller doesn't fit the smaller JCW pulley, years ago we had to custom machine one. Now that the JCW cars are getting older and changing hands owners have been wanting the HP gains the pulley provides. So we decided it was time to make these pullers available for the mass. This is a simple 2 piece aluminum clam shell that bolts around the stock JCW pulley then you attach a standard harmonic balancer puller or steering wheel puller to pull the pulley off.
I've heard that the JCW pulley is really difficult to remove, was it just due to the smaller/different size or was there some kind of press-on difference? I remember reading that some chose to cut their old pulley off.
It's just the fact that no other puller actually fully engages the smaller JCW pulley. They just mangle the crap out of it...ask me how I know!! Same press on.
How exciting, I bought a 15% pulley but sold it when I found out what pain it was to take off the JCW pulley. More boost may well be in my future after all!
It's just the fact that no other puller actually fully engages the smaller JCW pulley. They just mangle the crap out of it...ask me how I know!! Same press on.
He is correct, all the bad stories are cause the regular pullers don't fit and would damage the pulley causing customers to have to cut it off. This is the exact reason we made these JCW specific pulley pullers as we didn't want to see customers have to do that to use our pulley.
I would be really curious to see a dyno map of a 17% reduction pulley on a GP or factory JCW (or dealer install JCW for that matter). I am guessing a meaty increase in power up to about 6000, then a taper off to 7000.....since I am assuming a 17% reduction pulley isn't efficient at 7000 RPM (too much heat produced).
