Clutch???

[sloLs1]

I am in the market for a clutch for my '05 EVO... i have been looking at a exedy twin disk... but you can get either carbon or ceramic... i have heard carbon only works good when warm??!?! my power goals are 500whp max. so it needs to have good holdin power... i have never driven a car with a twin disk set-up before... is it much different than a regular single disk clutch?? Any comments, concerns and help is appreciated!!!
thank you!

[fireguyrick]

What about an ACT clutch? I have heard alot of the Exedy clutches failing at high power levels on STi's. If you want to spend $$$ Tilton, if they make one for the EVO, they are the best.

What are your mod plans?

Rick

[RedGSX]

here is a write up done by sportcompact car. might help in the decision. http://sportcompactcarweb.com/tech/0407scc_evovssti2/

[fly5150]

I'm in the middle of doing a quarter master twin disc in my srt-4. should be on the road saturday. very similar to the fx700 made my clutchmasters. Unsprung, ceramic, lightweight.

[jbiscuit]

the Tiltons are the best hands down but I don't think you need to drop the coin on a clutch like that. The Exedy's are garbage...big coin and they fail, Have you done some searching on the EVO forums?

[Bee]

What about an ACT clutch? I have heard alot of the Exedy clutches failing at high power levels on STi's. If you want to spend $$$ Tilton, if they make one for the EVO, they are the best.

What are your mod plans?

Rick

hehe.. twin discs exedy failing.. haha!!! we've made close to 650whp already w/o a problem.. still bitting. figure 750-800whp is when it'll start to give in.. maybe EVO and STI's are different when dealing with twin disc exedy...
now the single disc Exedy sucks sh1t....don't ever buy one. seen too many fail BIG TIME.....

ACT single disc 2600lb could do the 500whp job.. maybe even a 2900...

in any case all these extreme twin and act singles are hard at the pedal.. be ready for a work out...

[jbiscuit]

Bee, horsepower doesn't kill the clutches...its the torque. I have read countless posts on the Exedys failing when used in subarus. Maybe they work fine in the EVOs but from what I have read concerning the subarus, you can spend your money more wisely by selecting an alternate brand.


J

[fireguyrick]

Bee, horsepower doesn't kill the clutches...its the torque. I have read countless posts on the Exedys failing when used in subarus. Maybe they work fine in the EVOs but from what I have read concerning the subarus, you can spend your money more wisely by selecting an alternate brand.


J

Totally agree with you. Not trying to say Bee has no clue, as we all know that he does. It is just that Honda's are REALLY different then Subaru's & Evo's. Just like Bee, I am giving my perspective from what I drive. I figure my platform is a bit closer to what sloLs1 is planning though. My tuner, which is one of the most respected Subaru tuners in North America, and is also a well respected EVO tuner HATES Exedy clutches. I had a delay issue on my ACT clutch, and was unable to get it in prior to my tune. I could have bought an Exedy clutch prior to going up. After talking to my tuner, they said they would rather work with stock vs. an aftermarket Exedy unit.

Rick

[jbiscuit]

Good point Rick...it should be noted that I wasn't trying to suggest Bee didn't know what he was talking about, my comment was referring to the gobs of torque the subaru motors create under high boost situations. Look at a dyno plot of any well tuned subaru motor and you will see why the motors are hard on trannys. You get HP and torque spikes that climb very rapidly, putting a lot of strain on the driveline...mostly the clutch/trans/diffs etc

[fireguyrick]

Not to mention on alot of AWD cars, if you just out and out drop the clutch you are going to break something very fast. AWD cars require alot of slipping of the clutch, which eats away at it DAMN fast. Personally, my ACT is not going to last, so when I am having some work done around June/July my tuner is going to drop in a Tilton Carbon clutch. Hella $$$$, but the cost to rebuild it is only ~$150 or so dollars vs. ~$400 for others that can handle the power I am looking to put out.

Rick

[twicks69]

I would reccomend the quartermaster v-drive twin disk clutch if you are expecting to be using a GT35R or larger, with the intention of always launching the car at the track.

If this is a street car, I'd steer towards an ACT 2600 (500 lb/tq rating)

Check out www.machevo.com, AMS, or other DSM sites...buschur, switzer, extreme, etc.

For the quartermaster, Adam D at devotuning.com is the guy to talk to for a badass 1/4mile clutch.

[EVIL AWD]

I would reccomend the quartermaster v-drive twin disk clutch if you are expecting to be using a GT35R or larger, with the intention of always launching the car at the track.

If this is a street car, I'd steer towards an ACT 2600 (500 lb/tq rating)

Check out www.machevo.com, AMS, or other DSM sites...buschur, switzer, extreme, etc.

For the quartermaster, Adam D at devotuning.com is the guy to talk to for a badass 1/4mile clutch.

I'm going to have to second that. The QuarterMaster Twin-Disc all the way. It will hold all the power, allow for quicker shifts and the pedal stiffness is half that of the ACT 2600 someone mentioned earlier.

[sloLs1]

awesome!!! see i have done a little bit of searching for clutches and i see a lot of EVOs running exedy?!?! I have ran ACT clutches numerous times before and have always had good luck with them... so maybe i will go towards an ACT! Like i said before my power goals for now is take the stock motor to its limits of about 500hp. I prolly wont get there but its always nice to have a clutch that can stand the power that i could possibly have. I do a lot of daily driving with it but i also like to launch it at the track so hopefully this ACT clutch can hold the power... and as Bee said it will be a little heavier feeling... i had a camaro with a beefy clutch in it so i know what i am getting myself into!!! i like being able to feel the clutch like that!!! well i will let you guys know when i get a clutch and get it installed. I am looking into getting a GT30r turbo, HKS 272's, injectors, fuel pump ect. for it later in the year! I will keep you guys posted!! Thanks for the help... you guys could have saved me from blowin up a exedy clutch!!

[Bee]

Bee, horsepower doesn't kill the clutches...its the torque. I have read countless posts on the Exedys failing when used in subarus. Maybe they work fine in the EVOs but from what I have read concerning the subarus, you can spend your money more wisely by selecting an alternate brand.


J

yeah i know it's the torque, but then again HP plays a role too..you just can't leave HP out of the equation... In essense...it's actually both!!!

that one dude in burlington that runs low-mid 9sec in the oldschool EVO uses the exedy and claims to make somewhere in the 800whp w/ NOS. Heard he has problems with the twin exedy on NOS... hehe don't tell me he's only making 300ft-lb.... gootta be a decent amount of torque with 800whp...

[Bee]

awesome!!! see i have done a little bit of searching for clutches and i see a lot of EVOs running exedy?!?! I have ran ACT clutches numerous times before and have always had good luck with them... so maybe i will go towards an ACT! Like i said before my power goals for now is take the stock motor to its limits of about 500hp. I prolly wont get there but its always nice to have a clutch that can stand the power that i could possibly have. I do a lot of daily driving with it but i also like to launch it at the track so hopefully this ACT clutch can hold the power... and as Bee said it will be a little heavier feeling... i had a camaro with a beefy clutch in it so i know what i am getting myself into!!! i like being able to feel the clutch like that!!! well i will let you guys know when i get a clutch and get it installed. I am looking into getting a GT30r turbo, HKS 272's, injectors, fuel pump ect. for it later in the year! I will keep you guys posted!! Thanks for the help... you guys could have saved me from blowin up a exedy clutch!!

hey bro, don't worry the Exedy will NOT let you down.... i mean if you were going in the 700+whp range then reconsider!!! hehe!!! see you around dude

[Cryptic]

I liked the ACT clutch I put in the 7 last summer. I havent had it long enough to speak for its longevity. But so far so good.

[sloLs1]

I liked the ACT clutch I put in the 7 last summer. I havent had it long enough to speak for its longevity. But so far so good.

you have an EVO 7???? yea i only plan on running that clutch for the summer and part of next year... next year i want to go big but thats all if everything goes as planned !!! I dont want a clutch now if i can only drive it at the track... maybe next year it will be a track car?!?!?!?

[sloLs1]

hey bro, don't worry the Exedy will NOT let you down.... i mean if you were going in the 700+whp range then reconsider!!! hehe!!! see you around dude

yea we'll see what happens!!! i will have to make a stop at your shop sometime to check it out... if you'll be around, i will be home march24-april2. maybe then?!?!?

[TheBlueSupra]

unsure if RPS, or Tilton make one for the evo. but those brands are very good. my buddy has a Exedy in his Evo and has never had a problem with it also so those three i would look into. AND go Carbon

[sloLs1]

why carbon... whats the difference between carbon and ceramic... longitivity??? gripping power??? driveability??? i know the what the two compounds are... i just want to know what are the advantages and disadvantages of both!!! thank you!