Drivetrain aftermarket clutch
6th Gear
Joined: Jan 2006
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Former Vendor
Joined: Aug 2002
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From: Under your car
It's rattling in neutral if a) you have an un-sprung flywheel with an un-sprung clutch or b) your stock flywheel is jammed, and needs replacing. The factory flywheel is dual-mass: meaning that it has an internal spring which 'gives' a little on clutch uptake (or when idling in neutral with the clutch out). The clutch disc is solid. When people go to a single-mass lighter flywheel, they often don't use a sprung clutch disc, and therefore get the rattle and hum (on uptake).
the Clutchmasters products have provisions for this. They have setups with solid flywheels and sprung clutches (more like Porsches). I have to second the opinion of Spec--at least insofar as how their durability. They do wear out in a hurry. But people have to remember that when they buy aftermarket 'heavy duty clutches', they often think that it means that they will last for a billion miles, which is a misconception. It means that the pressure plates are sprung more heavily, and the discs have more aggressive friction material for aggressive launching and shifting. Especially with heavy use, they will not last longer than a stock setup.
the Clutchmasters products have provisions for this. They have setups with solid flywheels and sprung clutches (more like Porsches). I have to second the opinion of Spec--at least insofar as how their durability. They do wear out in a hurry. But people have to remember that when they buy aftermarket 'heavy duty clutches', they often think that it means that they will last for a billion miles, which is a misconception. It means that the pressure plates are sprung more heavily, and the discs have more aggressive friction material for aggressive launching and shifting. Especially with heavy use, they will not last longer than a stock setup.
^^ Just to attest to that, I ran a SPEC Stage III+ clutch in my 93 Corrado VR6 turbo with around 400whp and never had a single issue.
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Joined: Jan 2010
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From: Sunshine State
The OS clutch is pretty hardcore,rmw is in talks with clutchmasters for a less expensive and more streetable setup.
The perfect setup would be a clutchmasters clutch rated for 350 tq and a os giken diff.
The perfect setup would be a clutchmasters clutch rated for 350 tq and a os giken diff.
If youre interested in getting a high rated HP/TQ clutch thats higher than the JCWs capacity, shouldnt it work just fine?
Im pretty sure they wouldnt change the spline size of the clutch itself, but then again it is a MINI...
Im pretty sure they wouldnt change the spline size of the clutch itself, but then again it is a MINI...
Former Vendor
Joined: Aug 2002
Posts: 3,159
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From: Under your car
Nope. Clutch is the same. The pressure plate and flywheel are different.
Last edited by Helix13mini; Jan 11, 2010 at 09:12 AM.
More info!! How do you like it...how does it feel....worth the extra $$?
Bestow upon us you knowledge!!
their single plate is more than adequate
the quality is there but you pay for it. The dollar to yen is not in our favor
I have both the OS Giken diff and clutch. The clutch for the R56's is the super single. The clutch is not for the faint of heart. It is super grabby and will chatter when you slip it in first gear if you don't give it a fair amount of gas. In my opinion if your car is mostly a street car (mine is not) you might not be that happy with the Giken clutch.
The spring plate is not that stiff and is pretty close to stock, maybe 66% stiffer. My comments about it being streetable are limited to slipping the clutch in first gear, other than that it is not too bad. There is some flywheel rattle when you have the clutch engaged, but I think that is par for the course with a single piece flywheel.
The diff totally kicks ***! I do around 30 or so track days a year, and came from the stock LSD. The Giken is MUCH better than the stock diff. With the stock diff on tight turns the inside wheel would just spin and I would have to come out of the throttle to keep from trashing the tire. With the Giken the car just pulls, it's crazy, you can just keep your foot in it and the car launches out of the corners.
The spring plate is not that stiff and is pretty close to stock, maybe 66% stiffer. My comments about it being streetable are limited to slipping the clutch in first gear, other than that it is not too bad. There is some flywheel rattle when you have the clutch engaged, but I think that is par for the course with a single piece flywheel.
The diff totally kicks ***! I do around 30 or so track days a year, and came from the stock LSD. The Giken is MUCH better than the stock diff. With the stock diff on tight turns the inside wheel would just spin and I would have to come out of the throttle to keep from trashing the tire. With the Giken the car just pulls, it's crazy, you can just keep your foot in it and the car launches out of the corners.
Last edited by btwdriver; Feb 24, 2010 at 07:33 AM.
I have both the OS Giken diff and clutch. The clutch for the R56's is the super single. The clutch is not for the faint of heard. It is super grabby and will chatter when you slip it in first gear if you don't give it a fair amount of gas. In my opinion if your car is mostly a street car (mine is not) you might not be that happy with the Giken clutch.
The spring plate is not that stiff and is pretty close to stock, maybe 66% stiffer. My comments about it being streetable are limited to slipping the clutch in first gear, other than that it is not too bad. There is some flywheel rattle when you have the clutch engaged, but I think that is par for the course with a single piece flywheel.
The diff totally kicks ***! I do around 30 or so track days a year, and came from the stock LSD. The Giken is MUCH better than the stock diff. With the stock diff on tight turns the inside wheel would just spin and I would have to come out of the throttle to keep from trashing the tire. With the Giken the car just pulls, it's crazy, you can just keep your foot in it and the car launches our of the corners.
The spring plate is not that stiff and is pretty close to stock, maybe 66% stiffer. My comments about it being streetable are limited to slipping the clutch in first gear, other than that it is not too bad. There is some flywheel rattle when you have the clutch engaged, but I think that is par for the course with a single piece flywheel.
The diff totally kicks ***! I do around 30 or so track days a year, and came from the stock LSD. The Giken is MUCH better than the stock diff. With the stock diff on tight turns the inside wheel would just spin and I would have to come out of the throttle to keep from trashing the tire. With the Giken the car just pulls, it's crazy, you can just keep your foot in it and the car launches our of the corners.
the differential is definitely a "point and shoot" style LSD
From your other comment about working with them for a more street friendly clutch, are you guys going to release that new clutch under RMW then? Or will it be marketted under OS as well?
