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I plan on running the Carbon D (ZM022SDMC1) twin disk for my current build,
the price was way too good to pass up for a brand new unit
just keep in mind that carbon disks need to be warmed up if you want to get a solid bite at the Drag Strip or Time Attack event
my concern is would a new stock throw out bearing be sufficient/compatible with the Carbon D, reason I ask is because one wasn't supplied in the box
^ Did your kit supply instructions for HOW they recommend warming up the clutch plates? I've looked around but everything I find (even the Exedy website) only says that it needs to be done, without explaining the preferred method
I've been able to come up with, through inferences, that shifting/engaging the clutch as well as high rpm operation is good for maintaining the heat.
I'm picking up an Exedy carbon twin disk this weekend, its lightly used (less than 500 miles) but the seller isn't sure if it's an R or a D. I'm not sure if it will come with the full paperwork, which is why I'm asking you.
from my research on this clutch the break-in process is extremely important to achieve good and consistent results. After that, I've read that normal daily driving doesn't require warm up but before a drag launch or track session it's good to do.
Good ****, thanks man!! I searched around but all I could find was the disclaimer from Exedy's website saying to warm up the clutch, and various forum threads asking/complaining about it on skyline and supra forums.
I wonder if the reports of slippage over 450whp are primarily due to a drivers failure to warm the clutch before romping on it.
Like I said before I am running the exedy Twin ZM022SD with no problems on the street with an EFR 8374 which I have taken up to 18PSI+ with water meth injection. The car drives very well and the clutch is solid. It seems to be the most streetable option of all of them as its made for street and has a sprung center. it also holds 515 FT-LBS of torque at the wheels which is higher than the carbon series clutches meant for racing. The 022SD also has a thick ventalited intermediate plate for improved life.
I went with this as it seems to be the least headache of warming up a clutch, holds the most power, and is meant for wear and decreased loads to the drivetrain.
I thought it would be an easy choice.
I shopped around a bit and purchased one new for a price much lower than people are quoting in this thread, it wasn't cheap but I figured it was the best.
So why are people going with Carbon clutches if the car is a street car?
I'm going with the carbon twin because I found one VERY lightly used (like 50 miles on it) for ~$1,200 off retail. I have no intention of running over 500whp (will normally be in the 360-400whp range) so I don't need a maximum torque threshold.
90% of my driving will be on spirited backroads away from traffic or other drivers, 5% will be getting to those roads, and the remaining driving will be split between (hopefully) track days/auto-x or mundane stuff.
Last edited by fendamonky; Aug 5, 2016 at 09:50 AM.
I think one of the benefits of the Exedy over a lot of other multi-disk clutches is that is comes as a pull-style for the FD guys. A lot of the others like OS Giken, HKS, ORC, come in a push-style that works with an alteration kit, or in an FC. I'm using an OS Giken TS2B twin in my FC and couldn't be happier. I have a EFR 9180 at 18 psi and it has not slipped once. Last I mic'd the disks, they were at 25-30% of full thickness.
hey sorry its been a while but from what I gathered from the Exedy Reps at Formula Drift event I attended, I was told that regular daily driving or stop and go traffic helps in warming it up if you plan on taking it to a Drag or Time Attack event, but if you plan to trailer the car then the method below is the preferred way to get it warmed up.
3 successive 5 second slips of the clutch within 30 seconds of each other to be performed before hard driving.
But as far as the reason why I got the Carbon D model; it was because I paid less than $700 USD shipped to my door BNIB. so it was too good to pass up and probably the best bang for the buck.
but I think I might consider upgrading the wedge collar to the ACT monoloc collar
I'm also a Huge Fan of Exedy Clutchs.. but I use the Cerametallic Twin in my Drift Track car. It's held up.....to what I'd consider the worst conditions you could put any clutch through. I Don't have any first hand experience with the Carbon Clutches... but The friends that I know who have used them say that THe break in on them is essential.. and even then they're swapping discs every couple events. My Last Cerametallic twin lasted me 22 Events... making 480 WHP and 390 Tq... And I slip the clutch EVERY time I drift...in EVERY corner. I refreshed the whole unit with new parts aside from the pressure plate at the beginning of the season....and All is good So far. I actually purchased another Brand new Full Cerametallic twin just in case.... But I honestly don't think I'll be using it anytime soon. Lastly I've got yet another one hahaha... Slightly used that I picked up...in Excellent condition that I was going to put onto a spare motor build...that I've decided to sell. If anyone is interested.. I don't sell bad parts. It's in Excellent Condition. Just pm me!!
