Best Twin Disc Clutch?
Apr 8, 2009, 09:26 AM
#46
Reports on the street/strip performance of the Carbonetics are good, but that isn't the problem. The biggest drawback to the Carbonetics clutch is the rebuild cost, which is about the same price as a new one. Unless you really want to fork over $2k+ install every time that one needs to be rebuilt, I'd stay away.
When I had my 35r powered talon, I had a quartermaster 7.25" twin disc installed. I daily drove it and it absolutely sucked @ss, but it held alot of power on the track (also very inexpensive). When I got my evo I installed an Exedy HD twin disc. I also daily drive it, and besides the clutch chatter, I can barely tell its a twin. It almost drives like stock. Very easy to launch (low 1.6 60ft easy). Cheap and reliable-Quartermaster. Reliable and easy to drive-Exedy.
The QM does what it's supposed to w/ no frills and is fine so long as you don't mind adjusting your driving style to keep the noise, chatter, and rough engagement down.
70% or more track use the QM will suit your needs just fine
70% or more on the street and i'd look elsewhere.
Apr 9, 2009, 06:59 PM
#47
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You are maxing this clutch out. I put down 305tq on a mustang dyno(probably 400 at the crank), and now my SD is slipping 20k miles later. No launches, but alot of "from a roll" goes.
Apr 9, 2009, 07:14 PM
#48
Ted thanks for your input on the Spec twin but in regards to re-build pricing what can we expect to rebuild the Spec for and are/will parts be readily available when the time comes?
I agree as we have many cars come threw the shop with QM's and Exedy twins and for a primarily street drivien car i'd def like a sprung hub twin of some sort which i should have gotten in the first place although i don't know if it would hold the tq/hp my car puts out now.
The QM does what it's supposed to w/ no frills and is fine so long as you don't mind adjusting your driving style to keep the noise, chatter, and rough engagement down.
70% or more track use the QM will suit your needs just fine
70% or more on the street and i'd look elsewhere.
I agree as we have many cars come threw the shop with QM's and Exedy twins and for a primarily street drivien car i'd def like a sprung hub twin of some sort which i should have gotten in the first place although i don't know if it would hold the tq/hp my car puts out now.
The QM does what it's supposed to w/ no frills and is fine so long as you don't mind adjusting your driving style to keep the noise, chatter, and rough engagement down.
70% or more track use the QM will suit your needs just fine
70% or more on the street and i'd look elsewhere.
like i said,
i dont care about sounds or how hard the pedal is or any other complaints
i can deal with it all as long as i know it will do its job
Apr 11, 2009, 08:08 AM
#50
Sure. The difference is that now, the clutch I have does everything it did, but without the noise, chatter, and rough engagement. For those who are interested in having the best of all worlds, I'm just telling them what's now available. For everyone else, just keep following the herd.
Apr 11, 2009, 09:37 AM
#53
SPEC Super Twin LT. It's what I have in my car now. As street friendly and quiet as the Exedy, but with greater power holding capacity and unlike the Exedy, it's a push type - no circlip to come loose. One sprung, one unsprung hub, and graphite hybrid discs. I couldn't be more satisfied.
--Josh
Apr 11, 2009, 02:04 PM
#55
I cant find the LT trim. I'm looking at spec website and all i see is http://www.specclutch.com/cars/Mitsu...004/Super_Twin
--Josh
--Josh
Last edited by RevMoto; Apr 12, 2009 at 12:45 AM.
Apr 11, 2009, 03:20 PM
#56
SPEC does everything in house and to order, so availability is never an issue. As for the rebuild, IIRC, it's about the same as a Tilton, which is very reasonable. If there were concerns about either of these, I'd have never considered it.
Sure. The difference is that now, the clutch I have does everything it did, but without the noise, chatter, and rough engagement. For those who are interested in having the best of all worlds, I'm just telling them what's now available. For everyone else, just keep following the herd.
Sure. The difference is that now, the clutch I have does everything it did, but without the noise, chatter, and rough engagement. For those who are interested in having the best of all worlds, I'm just telling them what's now available. For everyone else, just keep following the herd.
If any of you find out more please let us know who to talk to.
Apr 14, 2009, 01:18 PM
#60
From searching around, I went QM from Maperfromance.
Noise...who cares?
Chatter...drive around it.
To light...give it more throttle.
I know everybody sees things differently, but that's how I saw it. I've owned and/or driven numerous types of twins and aggressive singles. Aluminum 8 pound flywheels and full weight chromolys. Noise and chatter sucks, but I hate blowing a clutch on race day a whole lot more. A light weight flywheel is easier to bog on a launch, but if it does bog, it's also quicker to get back up on boost.
There were only two clutches on my radar, the QM and the Tilton. I could get either for the same price and like that they are push type that eliminate the clutch fork.
It came down to rebuild price. A rebuild on the QM was $350 which includes new discs and a floater plate. If it all goes bad, I think you can get the cover plate for a few hundred more. It's common parts so getting the parts is easy as well. The tech guy from Tilton said if you need to rebuild a Tilton, it's more cost effective to just buy a new clutch.
Noise...who cares?
Chatter...drive around it.
To light...give it more throttle.
I know everybody sees things differently, but that's how I saw it. I've owned and/or driven numerous types of twins and aggressive singles. Aluminum 8 pound flywheels and full weight chromolys. Noise and chatter sucks, but I hate blowing a clutch on race day a whole lot more. A light weight flywheel is easier to bog on a launch, but if it does bog, it's also quicker to get back up on boost.
There were only two clutches on my radar, the QM and the Tilton. I could get either for the same price and like that they are push type that eliminate the clutch fork.
It came down to rebuild price. A rebuild on the QM was $350 which includes new discs and a floater plate. If it all goes bad, I think you can get the cover plate for a few hundred more. It's common parts so getting the parts is easy as well. The tech guy from Tilton said if you need to rebuild a Tilton, it's more cost effective to just buy a new clutch.