Drivetrain Jmtc clutch or....?
#1
Jmtc clutch or....?
I have a 2012 R56 MCS. Clutch fork broke. Guide sleeve, pivot pin, fork, and rear main seal will be replaced. Master and clutch slave has already been replaced.
I was mainly wondering if anyone has any experience with JMTC's clutches. I currently have my mind on the stage 1 they have to offer. SMF, Segmented Kevlar clutch.
Or should I go SMF with an O.E. clutch?
Spec, Clutchmasters and Competition seem to have hit or miss reviews. I'm not considering oem cause of the whole dual mass flywheel ordeal plus I plan on making more power down the road.
JMTC kit seems a little more attractive because of the install kits they offer.
Any words of wisdom would be greatly appreciated!
I was mainly wondering if anyone has any experience with JMTC's clutches. I currently have my mind on the stage 1 they have to offer. SMF, Segmented Kevlar clutch.
Or should I go SMF with an O.E. clutch?
Spec, Clutchmasters and Competition seem to have hit or miss reviews. I'm not considering oem cause of the whole dual mass flywheel ordeal plus I plan on making more power down the road.
JMTC kit seems a little more attractive because of the install kits they offer.
Any words of wisdom would be greatly appreciated!
#3
I'm a JMTC dealer and can help with price. I have the Aluminum stage 4 in my ALL4 Countryman with stage 3 tuning and big turbo. Drives like stock but is able to handle the extra 80whp, additional 500lbs and AWD system. Stock only lasted me 18K Thanks Mario
mQubed Motorsport, Manic Tuning Dealer
mQubed Motorsport, Manic Tuning Dealer
__________________
2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
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#8
I got the stage 2 with the 31lb flywheel. It honestly feels great after a few days. The clutch pedal feels extra soft right now since I replaced a lot of parts. My clutch fork broke.
It bites harder and the acceleration is quicker. I thought it was because I had been without my car for a while. But that wasn't the case.
I ordered my clutch from Mario. I recommend ordering your clutch through him. He'll answer any questions you have. I was I had gone the full stage 4 but money limited my options.
It bites harder and the acceleration is quicker. I thought it was because I had been without my car for a while. But that wasn't the case.
I ordered my clutch from Mario. I recommend ordering your clutch through him. He'll answer any questions you have. I was I had gone the full stage 4 but money limited my options.
The following users liked this post:
ROD-Z (09-30-2017)
#9
I'm a JMTC dealer and can help with price. I have the Aluminum stage 4 in my ALL4 Countryman with stage 3 tuning and big turbo. Drives like stock but is able to handle the extra 80whp, additional 500lbs and AWD system. Stock only lasted me 18K Thanks Mario
mQubed Motorsport, Manic Tuning Dealer
mQubed Motorsport, Manic Tuning Dealer
Please contact me to discuss clutch options in my 2012 Countryman S All4.
Thanks, Rodney
#10
__________________
2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
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prob a good idea to replace the clutch input cylinder (clutch master cylinder) also....
i had the dealer install in the jmtc stage 3 (kevlar/+30%) clutch and 26lb flywheel a few months ago. mostly just couldnt have the car down for more than a few days (although they ended up comp'ing a rental which was nice). I had them pull the transmission, i went to pick up, swapped a LSD into it the same night, and brought it back to them the next day (they didnt want liability for cracking open tranny) to put car back together. Took it easy for 2k miles or so to break in, felt pretty good for maybe a month or two.
the more stuff i did, it never seemed to get any faster. if anything felt slower... and the slower it felt the more i'd beat the hell out of it. after exhausting every other avenue for why performance sucked I came to the conclusion the clutch had to not be holding.
Soooo a few thousand miles later ,currently, it is apart with the transmission pulled back out in the driveway, sure enough the clutch wasnt holding much. friction disc only shows discoloration on outside ~1/4" of material. pressure plate and flywheel, after a quick 3m pad, look relatively unused and still show machine crosshatching. After a handful of emails back and forth with jmtc, ran by guy i got the clutch from, dealer who installed.... the *fix* is/was needing a new master cylinder. It wouldnt allow the throw out bearing to fully release from pressure plate fingers and allowing a full clamp of the disc. I had no concerns re using the flywheel/pp but the disc i didnt want to reinstall so they are shipping out another disc.
replacing throw out bearing, arm, pivot pin, input (master) cylinder, flywheel bolts... for whatever reason i totally skipped over the guide bushing i'll prob order and replace it, slave cylinder plunger looks like it took a beating so it'll prob get replaced as well.
Oh and went with the ceramic
i had the dealer install in the jmtc stage 3 (kevlar/+30%) clutch and 26lb flywheel a few months ago. mostly just couldnt have the car down for more than a few days (although they ended up comp'ing a rental which was nice). I had them pull the transmission, i went to pick up, swapped a LSD into it the same night, and brought it back to them the next day (they didnt want liability for cracking open tranny) to put car back together. Took it easy for 2k miles or so to break in, felt pretty good for maybe a month or two.
the more stuff i did, it never seemed to get any faster. if anything felt slower... and the slower it felt the more i'd beat the hell out of it. after exhausting every other avenue for why performance sucked I came to the conclusion the clutch had to not be holding.
Soooo a few thousand miles later ,currently, it is apart with the transmission pulled back out in the driveway, sure enough the clutch wasnt holding much. friction disc only shows discoloration on outside ~1/4" of material. pressure plate and flywheel, after a quick 3m pad, look relatively unused and still show machine crosshatching. After a handful of emails back and forth with jmtc, ran by guy i got the clutch from, dealer who installed.... the *fix* is/was needing a new master cylinder. It wouldnt allow the throw out bearing to fully release from pressure plate fingers and allowing a full clamp of the disc. I had no concerns re using the flywheel/pp but the disc i didnt want to reinstall so they are shipping out another disc.
replacing throw out bearing, arm, pivot pin, input (master) cylinder, flywheel bolts... for whatever reason i totally skipped over the guide bushing i'll prob order and replace it, slave cylinder plunger looks like it took a beating so it'll prob get replaced as well.
Oh and went with the ceramic
Last edited by randeez; 11-08-2017 at 06:36 AM.
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Ouch! Any compensation from JMTC for the sending out the wrong clutch? Or was it an error on your side?
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And this **** continues on.....
So i send back everything i have: flywheel, 2 clutch discs, and the 30% pressure plate. I get an email a shipping label has been created in the beginning on december, the 2nd. New clutch doesnt show up till earlier this week, the 19th. Open the box, new fly wheel, 15% pressure plate, and ceramic disc - just ****ing whatever the hell already i'm so sick of waiting on **** to get shipped back and forth i put it on.
I throw on the flywheel, disc, pressure plate, and mount the transmission after work one night. didnt get around to finishing up putting it all back together until today. start it up, put it in gear - nothing but a slight grind sound with clutch fully pressed but nothing else, go through all the gears- nothing. Up on jack stands put it in gear to let wheels spin, nothing. while in gear i can spin the wheels by hand.
At this point i'm guessing transmission shaft has broke off?? just my luck. sit around for about an hour and tear it back apart, check transmission shaft it's fine, lsd works fine goes through alll the gears with the transmission on the ground. So wtf, I take the pressure plate off the flywheel and the god damn splines on the clutch disc are bigger than the shaft of the transmission. So here we go again, who the hell knows when i'll see another clutch disc
I really can't recommends jmtc after all this, i've bit my tongue plenty of times and given him a chance to make it right. My car has been on jack stands for going on 2+ months at this point, if you get what you need the first time i'm sure it's all good but really screwed if it's your only car and have to wait weeks between getting parts back. I dont need to the car running, i'd much prefer it was, but at this point? buy an os giken/ try clutch masters? try to resell a jmtc clutch that fits who the hell knows what? stock that wont last? i dont even care about the money at this point i just want the car back together
So i send back everything i have: flywheel, 2 clutch discs, and the 30% pressure plate. I get an email a shipping label has been created in the beginning on december, the 2nd. New clutch doesnt show up till earlier this week, the 19th. Open the box, new fly wheel, 15% pressure plate, and ceramic disc - just ****ing whatever the hell already i'm so sick of waiting on **** to get shipped back and forth i put it on.
I throw on the flywheel, disc, pressure plate, and mount the transmission after work one night. didnt get around to finishing up putting it all back together until today. start it up, put it in gear - nothing but a slight grind sound with clutch fully pressed but nothing else, go through all the gears- nothing. Up on jack stands put it in gear to let wheels spin, nothing. while in gear i can spin the wheels by hand.
At this point i'm guessing transmission shaft has broke off?? just my luck. sit around for about an hour and tear it back apart, check transmission shaft it's fine, lsd works fine goes through alll the gears with the transmission on the ground. So wtf, I take the pressure plate off the flywheel and the god damn splines on the clutch disc are bigger than the shaft of the transmission. So here we go again, who the hell knows when i'll see another clutch disc
I really can't recommends jmtc after all this, i've bit my tongue plenty of times and given him a chance to make it right. My car has been on jack stands for going on 2+ months at this point, if you get what you need the first time i'm sure it's all good but really screwed if it's your only car and have to wait weeks between getting parts back. I dont need to the car running, i'd much prefer it was, but at this point? buy an os giken/ try clutch masters? try to resell a jmtc clutch that fits who the hell knows what? stock that wont last? i dont even care about the money at this point i just want the car back together
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