1st Gen JCW Most liked posts in thread: S to JCW

Very true, I guess if someone was super determined it could possibly be done on the car, but for something this critical you really want to have the SC off the car. If you build a "installation tool", throw the SC snout in the freezer for a few hours, and "bake" the pulley in the oven at 250F for an hour it's not too bad of a job. For the freezer and oven steps, it does help to be a single guy :biggrin5:

Jason

 

...although, best case, it was a JCW car (head, software, and intake) that the owner simply took the exhaust off of to make a few more buckaroos on the sale. Worth checking!

Nathan, I checked around on the JCW pulley for Jason (our autocrossing buddy). Apparently, STX rules DO allow the JCW pulley, since the JCW came factory stock. The research I did was fairly conclusive at ~12%. Jason reported that he lost all of a pound of boost (gauge) at the top end, with no noticeable driveability changes (according to his calibrated butt dyno). I can attest to that, since he crushed me in the last autocross we were in!

 

LMAO :lol:, only you, Jason, only you!

 

I thought the tune was just a computer flash?... If it is the box, then you'd just need an intake and exhaust I believe. Not much to it.

 

This is interesting...

In 2005 you could get a dealer installed JCW kit or order it direct from the factory. It included a revised supercharger with what most think is an 11% pulley. The coated lobes were now standard in 2005 so that is no different. Also included is a slightly revised head, unique to the JCW. Frankly, for the cost of one of these from MINI you can a heck of lot better in the aftermarket. Other parts are the cat back exhaust and air box, colder plugs, 380 injectors and the software to tie it all together.

First off you would want to determine what it any of the JCW bits you do have. Also want to see somehow of you have a JCW tune too. Might want to give MINI US a ring, 866-ASK-MINI and ask them what the car had on delivery for options.

Converting it now from S to JCW specs I fear would be big bucks. MINI OEM parts are not inexpensive and the JCW bits are a bit more dear when it comes to pricing. You have to ask yourself if the cost is worth the return. You can easily achieve the same results with the afermarket for much less.

The appeal in 2005 is that it was all covered under warranty if something went amiss. That was worth the extra cost to many people. Now these parts will not be covered, your warranty is long out of play here. If you really want a JCW I'd be looking for a one of that vintage built at the factory instead of trying to convert an S. To me the cost is just not worth it.

 

I think the question was just to get it to "JCW Kit" standards... not full factory?

 

You can make a bastard JCW for not much money.:wink: That is what I did on my MINI.

The JCW will also have 380cc injectors.
JCW airbox, which you have, although it sounds like the wiring for the flapper is not hooked up.
12% pulley
JCW head that has minimal head work
JCW exhaust
JCW flash to the ECU
Various stick on JCW badges

That is not a lot of stuff & you could go aftermarket & get more for less.

 

I have an unmarred JCW pulley that I removed @ 15K miles. I would sell it for $50 + shipping. E-mail [email protected] or PM me if interested.

 

The OEM JCW pulley is a press on pulley, not like the aftermarket ones. It is very difficult (if not down right impossible) to install it on a SC still on a car.

 

JCW is not really worth it unless you keep it all stock JCW.

For me I turned my 05 JCW into a much more powerful and reliable RMW Mini.


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