the ceramettalic friction material is simply not designed to be slipped. it is a friction material used in circle track cars were the clutches are on and off switch. it is a poor choice of friction material for a street car and a horrible choice for a drag car.

carbon carbon is the only way to go if you want a really good clutch. if you dont want to cough up the ching then stick with an act single. they are the best bang for the buck.

 

Talonrcr have you checked into OS Giken for another JDM clutch option???

 

I have had the Exedy clutch for 5 months and I love it. It does chatter a bit (some times) but nothing too hard or too bad to make me soo mad. My stock clutch Chatter like CRAZY way way too much. My front would go up and down on the stock EVO clutch and the Exedy chatter is nothing comparing to my stock one.

Chris, Your stock clutch will start to chatter very soon trust me (many EVO owners have chattering stock clutches)

The Exedy clutch bites pretty well and holds power like a champ and I don’t launch my car at all because it was made for the track not the (QM $hit). I am not some idiot who is going to go out there and launch my car 100 times to get better QM numbers so I can post them here (I don’t care)... So far my Exedy had been amazing and problem free period.

RPS clutch are simply to expensive for me (although I make good amount of money) I cant see myself spending all this on a clutch that might not last as long and no hard facts are there. Many good vendors here on EVOm Love Exedy and always support it.

I will have to show this topic to my friend at Exedy (The supplier of Exedy clutches in North America so he can chime in.

 

I have the exedy twin and I do drag race it(not incredibly often). However I only slip the clutch from about 3-3,500 rpms. I have not seen any problems with the clutch thus far(8,000 miles). Is it when you slip the clutch from the higher rpm's like 5 or 6,000 rpms that they have been failing? I thought as long as you keep the rpm's low you're ok? Let me know AL, or thers.

 

I have the ATS twin on my car and I love it. It is a bit noisy due to the floating design of the carbon material. I have 8k miles of 400whp abuse on it and it is still working fine. The 9in plates where a big bonus for me purchasing it. It is a very forgiving clutch at the track. Just dial in the rev's and preload the drivetrain and fly out of the hole and in stop and go traffic , it can be a little tedious seing as how I have the 1350kg pressure plate . But it is very easy to modulate !!!

 

Bookmarked

 

i think the exedy piece isn't for drag racing... and when they do drag in japan... since no one does it they come with the mentality of being prepard to replace even the best they have to offer. simply enough... they just don't do fat clutch drops... adn when they do... they're prepared to pay for it, hence prolly the mentality that they are replacing all this stuff so readily.

can someone talk more about tilton and ats i'm interested in alternative options that keep a stock pedal pressure, or slightly heavier than stock but are rebuildable and don't cost a fortune. and of course can take more beating than the stock clutch... and i guess i don't drag race... so someone enlighten me please?

 

you don't want a tilton twin disc metal in your car. i use one in my other car and even with the tilton release bearing it is really hard to drive. the entire assembly is really light (too light) for daily driving. I can't imagine the carbon fiber tilton being that much easier to drive.

I did however, i tried the carbon fiber rps clutch and i really couldn't tell it wasn't stock.

 

I agree with this guy

 

i had the exedy twin carbon for 1000 miles, it didnt seem right on the shifting, and it would slip at 4K-5K rpm all the time. i had it removed and it was discovered to have a warpage issue. there was a defect from the factory and it was replaced(warranty) i was given the exedy TRIPLE carbon clutch, which was made for the evo and it works better than anything i have ever used clutch wise. my first clutch after stock was the exedy twin non carbon which was a great clutch also. Russ at exedy said that the evo owners need a clutch with a high clamp-load due to the AWD and torque were putting down. i would recommend dont mess with the twins, and go with the triple!!!its quieter than the twin, and it grabs like right now. it to me is such an awesome clutch, and it is made specifically for us evo owners with mods. unbelieveable piece of work. exedy stands behind their product, took the tranny out to get the tranny beefed up and the clutch still looks like new(after 3000 miles) 1000 miles break in and 2000 miles of hard fun.

 

Im considering to get a triple plate instead of the twin plate but, i also read that the Exedy triple plate clutch (i believe it was C/C) were not drivable in the street. Although thats what i read from Exedy about their product line conclusion.

Can someone please clearify this issue for me, i'm looking for a clutch that will hold up to 600HP, WILL last, light wieght, street, circuit, and auto-x compatable, also can shift quicker, also it would be nice if this clutch can sustain its long life gevity but can handle about 3 to 5 7,000+RPM launches without any problems or warpage.

Thanks for your help guys, this thread has been extremely helpful through many asspects.

 

That clutch will be released in year 2069

Stay tuned

 

thanks but it doesnt have to be able to handle ALL of those things i just want it to have a long life gevity and still keep the clutches main performance capablities, i'll mainly use it for auto-x, circuit, and street. But since I plan on increasing the power output of the engine im not sure which clutch (twin or triple) would suit the power and yet still pertain to those three main purposes for the clutch.

 

Ok here is the real answer then. EVOs have been out for no more than 2 years max and our experience with them is soo limited especially when it comes to drivetrain. The highest mileage on an EVO now is around 76K and the guy lives here in DC and has stock clutch. So yes the stock clutch handles like a champ for a long time if you don’t launch it and you are stock. Anything else is not fully tested and I don’t care what vendors say as no one of them have driven the RPS. ATS, ACT and Exedy for 70K miles and told us how it did hold after all these miles. No one has the true answer for you because no one knows yet. For now you have to pay to play


Good luck

 

my triple plate is much more streetable that any twin i have ever had!!!!!!!!!!come on over and take it for a ride yourself. any one who wants to try it and live by indy, come on over.