[Snowie]

JCW R56 Sports Brakes on an R53 GP

This will be fitted on Wednesday to GP #0881 along with John Cooper Motorsport Mini Challenge rear grooved discs with Mintex 1144 pads, JCM front brake vents fitted to GP fake air vents, Braided Hoses and race fluid. All work being done by Tony Franks at MINIMOTORSPORTCENTRE.

Kit part number 34 11 0 428 914 Consisting of
2 x Drilled and slotted front discs – 34 11 6 777 826 – these are not handed.
Calliper complete with pads LH – 34 11 6 779 003
Calliper complete with pads RH – 34 11 6 779 004
Installing Info / warning booklet – 0397293
Label – 1 29 0 397 302
Installing instruction – 1 29 0 397 588

The kit has bigger pistons than standard R53 JCW and R56 standard brakes – I will measure them during the installation process and report here the difference

The kit comes with the following info booklet
Please note the following safety instructions
· The following MINI wheels / dimensions CANNOT be fitted in conjunction with the John Cooper Sport Brakes
· 15 inch steel wheels
· 16 Inch steel wheels
· Original MINI 16 inch alloy wheel (6.5J x 16 IS48) with
Part number 36 11 1 512 348 / 349 (styling R83 silver / white)
Part number 36 11 1 512 350 / 351 (styling R84 silver / white)
Part number 36 11 6 755 811 (styling R88 silver)
Part number 36 11 6 759 988 (styling R90 silver)
Part number 36 11 6 763 297 / 298 (styling R92 silver / white)

The spare wheel may only be used on the rear axle.

MINIs built up to 11/06 need John Cooper Works Brake pads for the Front and Rear Axles.
Minis built after 11/06 need John Cooper Works Brake pads for the Front Axles.

Some pictures of the kit – more pictures during the fitting process tomorrow.

Note 1
Chris at Woodmans is running a special on these. Mine were not sourced via Chris but you will be hard pressed to find a better deal than what Chris has them on offer at.

Note 2
The original JCW set up has been sold – I am sure that there may well be a simultaneous post from a fellow MINI 2er. Who has just returned to the fold.

[Snowie]

More Pictures

[Snowie]

And the final pictures untill fitting tomorrow

[Hugo]

I've got R53 JCW calipers and R56 cross drilled 294mm disks and EBC rear turbo disks, goodridge hoses and 5.1 fuild. Awesome braking power compared to standard S setup.

I think I might have the new ones with bigger piston only got them a couple of weeks ago.

[GBMINI]

Waiting to hear the results ... does the GP need any modifying?

[Rakey]

I'm waiting to hear how you get on with these too, and the kind of cost to do this job

[batou]

Ditto. V. Interested... got other things to do first but I'd like to know a figure of what to save up

["Reedy"]

A nice write up with good info...

thanks
Chris.

[Snowie]

Right everyone let's clear up some confusion that has been around for the last couple of weeks. The reason I can say the following is because I have just fitted a kit to GP #0881 and also compared things to standard R56 cooper S set up - there have been a few phone calls today and thanks to those who have been involved for their help in getting things clear.

Calipers -
R56
The R56 Sport Brake kit has 54mm Pistons in the callipers and the callipers are painted Red
The R56 S Standard Brakes also have 54 mm Pistons in the callipers and they are not painted.
So on an R56 they are exactly the same except that they are Sports calipers are painted.

Now let's compare to R53
The R53 JCW brakes are also 54 mm Pistons in the calipers and they are painted red.
The difference is in the casting the R56 calipers have extended lugs and the brake hose connection is different.

Discs
The R56 Sport brake kits contains slotted and ventilated discs which are not handed.
They are the same overall dimensions as the standard R56 discs
They are also the same size as the JCW discs for the R53

Pads
All of the pads are the same shape for both R56 Standard R56 Sport brakes and R53 JCW
The difference is compound and price.
When you have Drilled and slotted discs then you have to use the sport pads and also if your car was built before 11/06 you also need to change the rear pads to sport - after 11/06 you do not need to change the rear pads - Source BMW leaflet that comes with the sport brake kit.

Conclusion
The Calliper upgrade is worthless - all you get is Red paint
The Discs and pads are worthwhile doing and you will notice an improvement.


I will update post 1 and correct the data

Later I will post up the overall work today


Note this advice is given without acceptance of any liability on the part of the author - always verify things for your self before making your own informed decision

[batou]

Oh.... so did you bother changing the calipers in the end? Well thats a shame I have to say.

[ScottyBoy]

Thats some good info there Snowie....

I may be being abit thick but the kit you have fitted, is that the same kit that will be fitted to the new R56 JCW stage 2 car? and therefor no different from a standard R56 brakes.

Or

Will that new car have even bigger brakes?

Scott

[dbsmith]

Great analysis & info - thanks for this, saved me a few bob.
So where do I get a tin of red paint ?