So I always felt it was a stupid idea....if you're going to switch the turbo, don't mess around and go with a JCW turbo....go all out and go bigger. However my thoughts are changing....I have an inkling that it'd make some serious power on a Cooper S once tuned....more than you'd think.

I know there was lots of small talk awhile back of a few people that were going to try a JCW turbo on a Cooper S. Just wondering if anyone did this yet.....

Is it a straight swap? Diagrams say yes.

 

that and a RMW Meth kit............... oooohhhh la la

 

My mind is going crazy....haha

Steve Gatewood is getting a visit from me tomorrow

 

I'll call him and tell him............"don't do it"

of course then you can bring the heat...........and we will lose for sure on this one.

How fast can they bolt it on?

 

Is the housing of the actual turbo bigger in the JCW? IIRC it was just the compressor wheel thats larger? We could go find a junked jcw (prob not so many) and swap compresssor wheels with ours, like a k03/k04 hybrid people do on other cars..

 

Yeah its just a larger compressor wheel. But they seem to flow a lot more than our Cooper S K03's. It is essentially a K03/K04 hybrid as you mention

The increased flow, coupled with our higher compression ratio would make for some good numbers. Numbers that I'd be very satisfied with.

 

Parts dept and techs say its straight swap.

Can have one here and on in 5 biz days..............hmmmmmm

 

Price?

 

Retail is like 1600 ish....I'd get it a lot cheaper though.

If it works like I think...it'll be a good deal. And the best part is you won't even be able to tell by looking at it.

 

Mini Cooper R56 and JCW Turbo Charger Comparisons

If you have any more info let me know. I need to build on this page.

 

I smell trouble and.............a trip to Cali.............

 

I can tell you its a direct bolt on already. The intake side is a bit larger but nothing that cannot be made to work easily.

 

I like that smell...


Yea, I'd just put on one of the hard JCW intake tubes to make it easy

 

I've heard modifying the stock version to do the same as the JCW would cost less? A hybrid turbo should run $800 from a shop?

 

For only about a $300 difference, I'd rather just have the whole thing.

This way I don't have to have the turbo taken apart, sent out, not have a car while I'm waiting for it, risk the chance that the morons who modified it didn't put it back together right, blah blah blah....the $300 is worth it.

For the power I'm thinking it will give, it's still a hell of a deal.

 

is the JCW a k04 or no? ours are k03's (as just an s).
The hybrid swaps are popular among other cars, and i'd be willing to do a swap for my car. Just wondering how 'in reach' the tuning for it is. I know JCW cars can be tuned as well as our S's, but would Jan be able to just pull values off the jcw maps and replicate them on the S? I have a feeling it'd be more complicated than that, but yes, I agree, we'd be able to put down quite a bit more power with a jcw compressor wheel or turbo

 

Is the exhaust manifold different or is it just the turbo?

 

Shuld be just the turbo.

Want to see how this pans out. The extra $300 could be used to port the compresser housing a little further, and smooth out the mouth of the inlet (Plus the turbo would be apart anyhow making the porting easy)

 

The JCW exhaust manifold is different to the S, the difference is the JCW is internally slightly larger, to match the flow characteristics required of the JCW turbo.

 

 

A few hundreths of an inch shouldnt matter much if they are different. From what was said earlyer only the compressor (cold side) wheel is different, and the turbine (hot side) housing and wheel is the same as any standard S turbo. It's not like they changed the flange for the JCW models, that would be entirely cost ineffective.

 

No its still a K03...

Tuning shouldn't be an issue that it once was, thanks to the Cobb AP. We also have a few ideas to ensure it will be easy and successful.

Originally thought it was the same and parts told me it was the same...but it does have a different part number from the S. Like czar said, I'm sure its a slightly bigger. Probably not too drastically different though...think I'm just keeeping the S one. Agree with DICKS GARAGE that it would not be cost effective to switch to the JCW mani.


I'm just going to do this as a starting point for turbo upgrades. I'm starting with the JCW, for ease, simplicity, and cost, so I'm not going to go through extra work. I had plans last year to build a bigger turbo kit using a Mistubishi turbo, but the company/people I was doing it with flaked out. I plan to see the results we get with the JCW turbo, then get progressively crazier from there.

From approx $1500...it will be a steal. Considering some people pay $2500-$3100 just for the whimpy JCW Stage 1 kit....this will be a bargin, hp/$ wise. Best thing is, I bet a 99.9% of dealers would have no idea you switched the turbo, because they look the same on the outside . Perfect because I have 6k miles left on my warranty....gotta get every last bit outta it

 

And just how crazy are you looking to go, Thumper?

I built my specific turbo last year, the only thing holding me back from installing this and other components on my road going S, is the tuning ability of the stock ECU, other than that the N14 (prince) engine can be made to deliver very good power.

 

to be fair, you can't really compare a product to an incredibly over-priced alternative and call it a bargain.

 

I know, you're always very pro-Prince engine on Mini Torque! That's comforting to know, since it seems you've really dug into these motors and know the in's and out's.

Depending on the numbers from the JCW turbo, I'd probably build a kit using a GT2554 next...and then up to a GT2860RS. With the 28RS, I'd start doing internal stuff and headwork. At that point look into different fueling options as well. Which from your own accounts, is good till you get above 300?

Haha, yea.

So, let's compare it to a big valve, ported head for an R53 which is the easiest bolt on mod people choose for "big" hp out of the 53....those are about $2500.