2012/03/26 19:52:07
-Totenkopf-
Take a look at the carbonetics range.  I know for fact the twin plate is very nice and also quite streetable.  I have one in both my MR2 & EVO.  They also do a single plate.
2012/03/26 20:03:59
robk
I have an Exedy 'heavy duty button clutch' (not the cushion button type).
I expected it to be quite annoying to use, but it actually has quite a nice feel to it (not much different to stock really), and I'm very picky with clutches.
2012/03/26 20:10:02
Mr2gtracer
That's interesting rob, I always imagined the heavy duty clutch to be a bitch to use haha.
Does it have a similar biting point?
2012/03/26 21:02:14
robk
Mr2gtracer
That's interesting rob, I always imagined the heavy duty clutch to be a bitch to use haha.
Does it have a similar biting point?

Compared to before, I have to lift my clutch pedal higher before it starts to bite (I guess that could be adjusted if it bothered me).
Once it starts to bite, it can be slipped without too much fuss.
The range over which it can be slipped, is perhaps a little narrower than a stock clutch, so it takes a bit of getting used to, but once you get the hang of it you can take off really smoothly from a standstill.
 
*EDIT*
One other thing, initially when I was choosing a clutch, I was forgetting that 'button' clutches aren't meant to be the worst for driveability...twin-plate clutches are the ones that are extremely sh*t to use, but hold the most torque.
2012/03/26 21:20:11
MANDALAY
Thanks guys.
 
How about noise on deceleration or neutral with the button clutch. I was told by Exedy its a hit or miss
2012/03/26 22:08:04
dasic1
robk
*EDIT*
One other thing, initially when I was choosing a clutch, I was forgetting that 'button' clutches aren't meant to be the worst for driveability...twin-plate clutches are the ones that are extremely sh*t to use, but hold the most torque.

 
Can you explaine what you mean about about that. I thought twin plate was like stock, light pedal easy to use holds more power and the only downside is they rattle. Thats how mine is
2012/03/26 22:16:08
MCT_MR2
I personally find that a twin plate clutch is more streetable than a cushion button clutch. It is only once you get into the severe end with triple and quad plate clutches that you have issues with shuddering and banging, and excessive pedal effort.
 
I will admit that exedy and xtreme are the more compliant models of button clutches, but have found them to be prone to shudder after a while, and a lot of the american stuff can be unbearable once fully bed in over a few thousand k's.
 
The take up on twin plates is good, it is very easy to modulate slipping the clutch, as you are progressively engaging two plates instead of one. That said, the downside of most twin plate clutches is the noise. Depending on the motor, how aggressively the car is cammed and the make of clutch, they can range from a quiet chatter, to a metallic orchestra.
 
Carbon twin plates on the other hand are exceptionally quiet, very easy to use, can handle the power well and have a very linear take up being a full face of carbon material (they don't have a metal core. I have installed and used a carbonetics twin plate in an evo, and it was brilliant (although the push/pull conversion had a very backyard feel to it.)
 
Abuse is the only thing that will kill a carbon clutch, and that is severe launching and clutch kicking. We had a customer break one of the plates in a ATS & across carbon twin plate and the car still drove, just a slight difficulty shifting gears at high rpm was a giveaway.
 
Another option is to see if Jim Berry race clutches can build you a unit to suit your needs. He can match up a kit to suit your needs and likes, be it organic, coppermix, button or otherwise, and is reasonably well priced.
2012/03/26 23:28:05
MANDALAY
Will have a look at the Jim Berry, thanks
 
See if only that new Exedy was available for the MR2 i think it would be a good clutch.
 
In a way i really want a cushion, the springs but also have the ability to hold.
 
I want like OEM, maybe a tall ask but lets see
2012/03/26 23:49:39
robk
Hmmm, maybe I'm confused again. I seem to remember briefly driving an R33 Skyline which had an extremely (almost unbearably) heavy and noisy clutch, and I thought it was a twin-plate of some sort. Maybe I'm wrong.
Oh well, all I can say is that my heavy duty button clutch feels good (almost like OEM), considering that it can handle a decent amount of torque.
I guess in my previous post I was sort of generalising a bit too much. There would be big differences between different brands and so on.
2012/03/27 07:39:57
-Totenkopf-
Yeah, I only have experience with carbonetics twin plates but I find them very driveable (though, during the first ~1500km or so they can be quite a bit more undrivable and grabby).  I had one in the MR2 first and it was my first choice when I had to get a clutch for the evo.  The push to pull conversion did seem a bit backyarder, but, its what every manufacturer seems to do so whatever.  I am hoping I don't have to change the clutch again any time soon, as removing the gearbox from the evo was nightmarish.
 
I have also had personal experience with Jim Berry.  Great bloke.  The clutch didn't end up working out for my application (twin plate tilton on custom flywheel) but he offered me a full refund on the clutch and thats when I went and purchased the carbonetics.  A mates car has one of his single plate clutches in it though and its A+.
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