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Better clutch for your DSM

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8.2K views 71 replies 28 participants last post by  bje  
#1 ·
I just purchased an Exedy clutch for my 95 GST. I found out that the ACT clutches are FACTORY rebuilds with a higher clamping force. What gives?? Is this true?? Exedy is a NEW clutch built fresh to OEM specs (install wise) but is a much better product. This clutch seems to be very well made. What are your impressions??
 
#4 ·
SpoolingWOT said:
Exedy is a NEW clutch built fresh to OEM specs (install wise) but is a much better product.
What makes it better than the ACT clutches? Does it last longer, holds more or engages smoother? (I'm always willing to try something new or different) I think that the ACT is as good as it gets and there's nothing that could make the clutch better, I personally like the heavy pedal feel and the neck-snapping engagement of the ACT. It might be just a matter of personal preference, though... :D
 
#5 ·
Taboo said:
SpoolingWOT said:
Exedy is a NEW clutch built fresh to OEM specs (install wise) but is a much better product.
What makes it better than the ACT clutches? Does it last longer, holds more or engages smoother? (I'm always willing to try something new or different) I think that the ACT is as good as it gets and there's nothing that could make the clutch better, I personally like the heavy pedal feel and the neck-snapping engagement of the ACT. It might be just a matter of personal preference, though... :D
ACT 2600 baby, it doesn't get better than that!!!!
Count me in too Taboo...
I have had 2 Turbo DSMs and have always replaced the clutch with an ACT 2600 one.

I found out that the ACT clutches are FACTORY rebuilds with a higher clamping force.
Who gave you this information???

Because I find it highly unlikely that ACT would go out with factory rebuilds when it comes to developing and selling clutches.
 
#6 ·
The ACT clutch is a FACTORY clutch rebuilt with a higher clamping force. Compare the clutch surface between the Exedy and the ACT. Now, this is my opinion, and the ACT is used in many fast DSM's. I wanted to put out some hard info out about the Exedy, and if others felt the same way or had an impression, maybe I could elicit a reaponse. I love my car, and do the best I can for it when it comes to replacing parts (Apexi, Greddy, Eibach, Energy suspension and so on) In the end though, it is all a matter of opinion. I think the Exedy clutch is very well made. Hey, this form is for DSM drivers to share info, I'm sharing mine. Thanks for the feedback.
 
#8 ·
SpoolingWOT,
You really got us wrong :D . Personally, I'd LOVE to learn about the advantages and superiority of the Exedy clutch over the ACT2600. Maybe, if I drove your car, I'd go like: "Wow! Now, that's a CLUTCH!", maybe not, maybe you'd say the same when driving my car with the ACT2600. The Exedy clutch might be very well made - as you stated, but most performance oriented owners will go with what really works (no matter who makes it and how much it costs). Personally, I could really care less if the clutch came out of Yugo - as long as it works for my needs and expectations. The ACT2600 is a very well proven clutch that has taken a great number of daily street-driven DSMs to 11's. Some people say the ACT2600 is too heavy - when compared to the stock clutch. My only complain is that the clutch isn't heavy enough... :D
Anyway, I'd really welcome if you could share your opinon and experience with the Exedy clutch. I'd like to go with ACT2900 a few months from now but wouldn't mind trying something different... :D
 
#9 ·
Ok, first go to coximports.com, one of a few, or search for Exedy clutches. Next, you all should have upgraded your brakes in one way or another, so I will use this analogy:
When you brake (stock pads,rotors, fluid, lines) you have to brake pretty hard to stop from say 60-70mph in a relatively short distance. Slap on some metal matrix, EBC, AGX and you have better performance, not as much breaking effort, shorter stopping distance, and so forth. Look at the Exedy clutch surface next to a ACT clutch. Major difference. Does a clutch have to have a higher clamping load to be a better clutch? Maybe. But maybe a better friction material might be even better, along with a higher clamping force. It's all a matter of opinion. And, the Exedy clutches are more expensive than the ACT's (not that that is the reason they are better) I was just putting my 2 cents if info out there for you all to digest, debate, and give your thoughts on. I am still wondering if the Exedy will handle stoplight launches better than the ACT, but I have never used an ACT to give a very fair comparison. Who is to say what works for one car will work for another. Thank you ALL for the feedback.


Remember, half the fun is in the building.
 
#10 ·
SpoolingWOT, can you give us some hard numbers to back up your theory? Put down some numbers down comparing the Exedy Clutch vs ACT 2600. Things like price, lbs each clutch can hold, and amount of pedal pressure. Just *saying* it does better doesn't do squat in proving that Exedy is better. A good example for comparison would be here: http://www.roadraceengineering.com/clutchpressure.htm

So until you can give some numbers or even a web page as reference, your opinions doesn't hold much weight in an arguement. My 2 cents.

-Rich
 
#11 ·
I have a 2600 ACT on my FWD and i love it to death.....
and i like the firm pedal, the people at the dearlaship when the seat belt recal was done and they couldnt drive it, they just killed it
lol
they had to come get me to drive it, it was great....at least i thought.
 
#12 ·
SpoolingWOT said:
Does a clutch have to have a higher clamping load to be a better clutch? Maybe. But maybe a better friction material might be even better, along with a higher clamping force.
You bring up an interesting point. But I say, if you use a clutch disk with as much friction as the brake pads you mention, it would be damn near impossible to drive it ;) Thats why 4 pucks are no good for the street. Too much friction makes it tough to drive smoothly. The whole theory behind ACTs clutch is to use a normal disk (I belive it is very similar to a stock disc, but with embedded copper) and a strong plate. Sure it's a little tougher on the old leg, but it can both engage smoothly (not on and off like a switch as they usually say) and hold a ton of power. I know someone who did just the opposite, all in the name of science ;) He used a 6 puck disc with a stock pressure plate. It's easy on the leg, seems to hold good power, but it's still tough to engage smoothly in normal driving, and makes a lot of noise when cold.

Also, I can't see how the ACT is at all related to stock parts. The plate is totally different material (thick fingers!) and it's definately not a stock disc. I have slipped the crap out of mine (5k stutter launch can do that...) until I can't stand the stink, and after it cools it works as well as the day installed it. The stocker would glaze and turn to shit after doing that only a couple times from past experience.

I am not saying ACT is the best either, though I love mine. I have driven a car with a clutch masters of some variety and liked that as well, though I never got used to it ;) Almost put the pedal through the firewall it was so light, but it seemd to grip well... I am curious about the exedy as well...
 
#14 ·
I can't afford to experiment with clutches so I stick with a proven piece. I have over 20k and about 150 strip launches plus many (but not as hard) launches on the street and it's going fine but I do know that it will be replaced soon. I don't mind replacing a clutch every 2-3 seasons of racing (including autox) because I know racing cost money and it's my choice knowing the consequences. I also like the fact that the ACT2600 is a good mix of power holding ability and if properly broken in,doesn't destroy driveline part with great frequency.
 
#15 ·
Excellent!! I love a good debate. I never meant to imply that the Exedy was better than the ACT, just a thought that there was another good clutch out there. The Exedy organic holds 30 percent over stock (good for up to 350 at the wheels) and the ceramic/metallic holds 70 percent over stock (500 hp at the wheels) This is for the DSM, respectivly. I wonder why the Exedy has yet to have the reviews that ACT has had. There have got to be others out there who have used Exedy and have good (or bad) experience with it. I will have some hard info soon when the clutch gets "broken in" and let you know. Thanks again for all your input.
 
#16 ·
Mmmm, Act 2600.

Once you can chirp 2nd gear without powershifting in an AWD, you'll never be satisfied with another clutch.
 
#17 ·
about 4-pucks......

I'm now using an ACT 2600 and I really can't say anything bad about it. I used to have a clutchmasters w/ a 4-puck and I didn't seem to have much difficulty driving it on the street. As far as performance, I seemed to get better 60-ft times w/ the 4-puck over the ACT. The reason I switched over to an ACT is because the 4 puck ate away my flywheel and I can't really afford to replace flywheels everytime I replace the clutch.
 
#18 ·
a brief rationalization...
you are talking about 2 different styles of clutches here. 1) the aggressive clutch disc variety or..... 2) the aggressive pressure plate variety.

both have their own influence on performance. aggressive discs dont "need" heavy pressure plates because they "bite" the pressure plate and flywheel so AGGRESSIVELY. what does that mean? your girlfriend can drive the car without stalling it at every light, and in about a year you'll need a new clutch, pressure plate,AND flywheel. get a heavy pressure plate style clutch and you will only have to learn how to not whine to your freinds about the cramping because it reminds them of THEIR girlfreind.
act uses a clutch disc very similar to the factory disc. in fact, some folks use their factory disc and just buy the plate. need a new act? just turn the flywheel and throw another one on.
but EXTREME, RRE, BUSCHER, DSS, they all sell flywheels, so dont worry
 
#19 ·
Im not really going to get into this post, but ACT clutches have been tried, and have been pruven by many big names, why knock it? who cares if its a stock unit with high clamping force, why does that make Exedy any better?? It has taken many soldiers into 10's on 2600lb plates. Thats all that needs to be said.

Storm
 
#21 ·
95GSXracer said:
DSM Storm said:
Thats all that needs to be said.

Storm
Well, perhaps that's why it's been said, about a dozen times. And he made it quite clear that he wasn't saying the exedy was better. :D
Are you blind?

>>Exedy is a NEW clutch built fresh to OEM specs (install wise) but is a much better product<<

Thats like saying your a murderer but didnt mean to sound like you kill people.

Better wording next time?

Storm
 
#22 ·
As in better than stock.... And to quote the same person further:

"Excellent!! I love a good debate. I never meant to imply that the Exedy was better than the ACT, just a thought that there was another good clutch out there. "

Don't get upset, I was just pointing out that that info had already been offered. I get that all the time from others here, and now I see why it bothered people :) Chill :beer:
 
#24 ·
Well my stock cluch went so i have been loking for a new clutch. I have a few friends that claim they tested the pressure plate of the ACT 2600 and its a big exarattion. they came up with something like 180-200lbs. I cant prove that thats what they said.

They recoomanded i go with a custom made ceramin disk and the stock pressure plate. Any one think this is a good or bad idea?

I was also thinking can i use the act disk with the stock pressure plate. Any comments here would be greatlly apreciated also.
 
#25 ·
DSM Storm said:
LoL! I think im gonna pass on this topic :)

[/B]
Perhaps I misunderstood what he said. Maybe not. But I see you have no comment for the second part...

At any rate, I simply stated that that info had been posted already. You came in saying "I'm not getting into this thread" and it showed, since you apparently didn't bother to read it. Coming back to read the same info over and over again has become quite tedious and is the main reason I am growing tired of this site. Like I said, people have said the same to me when I did this. I was nice about it and you became defensive, it shows in your tone of voice, so to speak, and really isn't necessary.

Perhaps I was out of line with my orginal comment. But being a fellow member of NEDSM I didn't expect you to get so pissy. I have been polite in all of my posts, and would like the same in return. You can keep your sarcastic comments. Again, we are both on the same team, so relax :D


And thanks dan for gettin us back on the original topic of this thread. I dont know much about the ceramic disks... But for using an ACT disk with stock pressure plate I wouldn't bother. The ACT disk is very similar to stock. It's the plate that makes the 2600 what it is. If you dont want the high pedal effort try the 2100. Some like it, some hate it and wish they went straight to the 2600 though. Hope this helps :)

[Edited by 95GSXracer on 11-11-2001 at 11:06 PM]
 
#26 ·
95GSXracer said:
It's the plate that makes the 2600 what it is. If you dont want the high pedal effort try the 2100. Some like it, some hate it and wish they went straight to the 2600 though. Hope this helps :)

[Edited by 95GSXracer on 11-11-2001 at 11:06 PM] [/B]
Its not that i dot like its $. I cant afford the 2600 right now so i was looking at other cheaper alternatives and somewhat still better then stock.
thanks for the input though it helped