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MF Review: JCW Suspension at the Track

Part 2: On the Track

In our previous review of the JCW Suspension Kit we focused on performance as it related to public roads. Today we’ll be giving our final evaluation of the kit as it relates to the track.

At the track the JCW Suspension really comes into it’s own. Gone are the pains of the rougher ride and constant concern about bottoming out the front defuser. You’re simply left to appreciate how flat and entirely controllable the car is in corners. It’s also (as it is in stock form) very easy to control with the throttle and eager to rotate. The net is a feel of complete confidence that is only let-down by the lack of ultimate grip in most road (non R-compound) tires.

The track that the suspension was tested on (Putnam Park just outside of Indianapolis) only has one low-speed (3rd gear) corner so the ability of the kit to increase traction coming out of corners wasn’t really a factor. However, in the high-speed corners the extra control and feel (especially in the rear) was quite noticeable. Putnam has a series of “S” turns that can either be a beautiful flowing experience or a transition nightmare. The JCW suspension kit allowed for less roll and in turn more control especially in this area of the track. I was able to make one particular transition without even a tap of the brakes that most cars (including some MINIs) seemed to feel necessary.

If all the track time proved only one thing it’s that the JCW Suspension kit remains the most underrated OEM performance modification out there. The fact that the kit is designed to work as a whole and for a specific car (based on the weight of the options chosen) seems to give it a fluidity on the track that can be missing from some aftermarket set-ups. It’s seemingly unflappable and always eager for the next corner.

I can’t help but feel that the JCW badges given to the JCW engine kit is as appropriately applied to cars with this kit. In some ways it seems a bit more true to the MINI heritage.

Our previous testing of the suspension occurred only on public roads and the score suffered for that. 3.5 (out of 5) is the lowest we’ve ever ranked a JCW product. However with the pain of install component and install costs behind me and the track experience fresh in my mind, I feel obligated to re-visit the score. While I think the 3.5 should stand for the road portion of the test I feel a new, track specific score is in order.

MF (Track) Score: 4.5 (out of 5)

You can read part one of this review (tested exclusively on public roads) below:

[ R56 JCW Sport Supension (Road Review) ] MotoringFile

Parts Availability

The JCW Suspension is available now at all MINI dealers.

Parts List Clarification: There were a few questions in the previous review about the specific parts that make up the kit. First off yes, all parts are indeed different than anything you can currently get at the factory. This has been confirmed by MINI USA. Secondly the sway bars are (front) 24mm and (rear) 18.5mm in size – both larger than either the sport or standard suspension sway bars.

The JCW suspension was tested on a 2007 Cooper S and was driven at Putnam Park just outside of Indianapolis.

Written By: Gabe
M7 Tuning

28 Comments

lavardera Aug 29th, 2007 Link Reply to this comment

video?

Victor Aug 29th, 2007 Link Reply to this comment

It is true that the dampers, bump stops are different. The way bars are .5mm larger then Stock Sports suspension (Witch is 11.58% stiffer in the front and 8.7% in the rear over factory sports, which is a large improvement over stock setup). Coupled with the springs this is a good street/OEM setup. I think it is a better value then the factory sports.

nice review, nice setup.

lasersailor Aug 29th, 2007 Link Reply to this comment

video password?

Gabe Aug 29th, 2007 Link Reply to this comment

video?

I’ve specifically decided to not post any videos of the track-time on MF at this time.

video password?

I see you’ve found the video on my “other” site :) I recently took off the password protection so you should be able to get to the post without the password.

nervous Aug 29th, 2007 Link Reply to this comment

I know nothing of track driving – looks like fun. Do you drive with your windows down?

lavardera Aug 29th, 2007 Link Reply to this comment

fantastic – thank you. I suppose its time for those new tires now.

MiniMark Aug 29th, 2007 Link Reply to this comment

Other site? Pretty please.

lavardera Aug 29th, 2007 Link Reply to this comment

you can find it if you just think ABOUT it

MiniMark Aug 29th, 2007 Link Reply to this comment

I’m just in from a hard days graft and can’t be arsed. I don’t even know Gabe’s last name. How about you email me at limericklad_2000@yahoo.com and let me know? Pretty pretty please with sugar on top.

MiniMark Aug 29th, 2007 Link Reply to this comment

It’s ok, found it.

Jon E Aug 29th, 2007 Link Reply to this comment

I took a look at the video. Looks like great fun. It would be really interesting to be able to listen to conversation and instruction that was occuring. The MCS really held it’s own against some other pretty capable cars. I’m impressed. The long straight appeared to be the only place on the track where the MCS was slightly less capable. Of course the driver has a lot to do with the demonstrated ability on the track. I intend to soon be the proud owner of a new MCS and will have to take a look at what some of the local clubs have to offer in the way of similar events.

Gabe: What wheels and tires were you using? Do you change out your wheels & tires for these events, or do you run on your street tires? If using street tires, were they shaved? I would think that street tires with full depth tread would take quite a beating at an event like this.

Jon Aug 30th, 2007 Link Reply to this comment

From the pictures on Gabes Flickr looks like he ran on his normal street tires, 18 OS Ultralegga with Kumho SPT’s, does look like the tires took a bit of a beating but nothing to bad.

Very nice run Gabe, really look forward to pushin the new R56 around the track. Looks like the JCW kit is a winner for sure by what the video shows.

Gabe Aug 30th, 2007 Link Reply to this comment

Gabe: What wheels and tires were you using? Do you change out your wheels & tires for these events, or do you run on your street tires? If using street tires, were they shaved? I would think that street tires with full depth tread would take quite a beating at an event like this.

I ran my standard road Kumho Escta SPTs. I don’t see the point of shaving street tires as they’ll be shaved by the pavement soon enough ;-)

snid Aug 30th, 2007 Link Reply to this comment

Looks like motoringfile might need to do a newbie’s guide to HPDE events soon. I’d volunteer to help / provide some video footage of the base Cooper on the track.

1825vine Aug 30th, 2007 Link Reply to this comment

Need more hint to find the video.

Jackson Sep 21st, 2007 Link Reply to this comment

hi! I Fixed the JCW suspension Kit but exclude the spring. Was told the spring doesnt reduce the height.any comment?

Gabe Sep 21st, 2007 Link Reply to this comment

Yes – the spring does reduce the ride height by .5cm. You can see the difference here: before / after

Gabe Sep 21st, 2007 Link Reply to this comment

hi! I Fixed the JCW suspension Kit but exclude the spring. Was told the spring doesnt reduce the height.any comment?

Yes – the spring does reduce the ride height by .5cm. You can see the difference here: before / after

Need more hint to find the video.

Hint.

Jackson Sep 23rd, 2007 Link Reply to this comment

YEs i saw it, but my dealer say the JCW spring is the same height as the original. Do you have the part number so that i can refer to my dealer? Thanks alot dude!!

Gabe Sep 23rd, 2007 Link Reply to this comment

YEs i saw it, but my dealer say the JCW spring is the same height as the original. Do you have the part number so that i can refer to my dealer? Thanks alot dude!!

Your dealer seems to be misinformed. Here’s the official MINI USA release we posted last month: JCW Sport Suspension Officially Released

Jackson Sep 24th, 2007 Link Reply to this comment

Ok let me update them on the spring! =p Thanks alot Gabe!

MotoringFile » Archive » MotoringFile Top 10 Stories of 2007 Dec 31st, 2007 Link Reply to this comment

[...] MF Review: JCW Suspension at the Track [...]

Dr Obnxs Jan 15th, 2008 Link Reply to this comment

What about front camber? Is the R56 hobbled out of the box like the R53 with near zero front camber?

Thanks,

Matt

JCW Suspension Kit? - MINI2 - MINI Forum Aug 6th, 2008 Link Reply to this comment

[...] am worried it might be too firm. Gabe on Motoringfile has reviewed it for track and street use. MotoringFile » Archive » MF Review: JCW Suspension at the Track MotoringFile » Archive » MF Review: R56 JCW Sport [...]

Augie Sep 3rd, 2008 Link Reply to this comment

Great review Gabe! I just recently upgraded my 2008 MCS to this suspension and I couldn’t be happier! To me, it feels like a perfect compromise vs. the standard stock suspension. I thought the standard suspension was fine until I really pushed it then I discovered it’s limitations. I would highly recommend the JCW suspension to anyone that drives a bit more spirited and/or visits the track at least 1 or 2 times per year. A+ for me!

MotoringFile » Archive » MotoringFile 2007 MCS (JCW) For Sale Sep 30th, 2008 Link Reply to this comment

[...] JCW Suspension Part 2: On the Track [...]

Halifax Oct 30th, 2008 Link Reply to this comment

Hi Gabe, What tire pressures do you recommend for the JCW on the track? I run Nitto NT01’s … I know that it’s personal preference and trial and error, but I would appreciate a hint as to where to start. Thanks!

JCW Suspension Kit? - Page 3 - MINI2 - MINI Forum Nov 27th, 2008 Link Reply to this comment

[...] Quote: Originally Posted by kevkbuk (original) Yes, that’s what ‘all in’ means… Just thought I’d post this link on here that was posted earlier in the JCW section: John Cooper Works JCW MINI Tuning Parts and Accessories at genuinemini.co.uk – Great Prices on all R56 and JCW John Cooper Works MINI Parts and MINI Accessories Buy the kit from here then have a local garage install it for a significant saving… Is this kit the "hardcore" JCW Suspension – it seems to indicate the sports suspension – and does not include springs – so they need to be added as well – does that setup – which is coming in at Ł219.64 + Ł406.96 = Ł626.60 – plus fitting equate to the kit referred to on Motoring File – here » [...]

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Performance Accessories:
R56 JCW Engine Kit
R56 JCW Suspension (Long-Term)
R56 JCW Suspension (Track)
R56 JCW Suspension (Street)
R53 Craven Speed Short Shifter
R53 M7 Understrut System
Kumho Ecsta SPT Tires
R53 M7 Strut Tower Plates
R53 JCW Alcantara Wheel
R53 JCW Brake Kit
R53 Webb 15% Pulley
R53 Helix MCSa 15% Pulley
R53 H-Sport 19mm Sway Bar
R53 MCS Supersprint Exhaust
Podcast: R53 MCS SS Exhaust
R53 JCW Cold Air Intake
Reader Rev.: R53 JCW Brakes
R50 Supersprint Exhaust
R50 Remus Exhaust
R50 Promini Intake
R50 Remus Dual Exhaust
Schroth Harness System
R50 CVT Steering Wheel Paddles

Exterior Accessories:
Miniature's Receiver Hitch
OEM White Tail Lights

Lifestyle Accessories:
MINI_Motion Watch
MINI_Motion Driving Shoe

Audio:
MINI Digital SoundModul
ICE-Link Plus iPod Adapter
Official BMW/iPod adapter
ICE-Link iPod Adapter
Kenwood iPod Interface
Alpine iPod Interface
Harman Kardon Stereo

Interior Accessories:
JCW Alcantara Steering Wheel JCW Leather Dash
MCAW Auto Up Circuit
MINI Rear Camera
MINI Rear Saddle (official)
MINI Rear Cargo Storage Case
Official MINI Rear Saddle Bag
2004 MINI Armrest Reviewed
Mymini Knee Pad
MINI Bluetooth Kit
MINI Video Input
Aftermarket Bluetooth Integration
Ian Cull Auto-up Circuit
Universal Mobile Phone Holder

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MINI Model Number Cheat Sheet:

1st Gen MINI
R50: One & MC Coupe
R52: All 1st Gen MINI Convt.
R53: MCS Coupe
2nd Gen MINI
R55: Clubman
R56: One/MC/MCS Coupe
R57: One/MC/MCS Convt.
R60: MINI SUV