anyone gone from ACT to a twin plate clutch?
Originally Posted by kimletrim
I think G20's point, if I may put words in his line of thought, is that the ACT may in fact work for many users but it did not work for him. And the fact that the ACT did not work for him would indicate that there might be a few bad apples in what is normally a great clutch. Soon2BEVO, you have had nothing but good experiences with ACT...well G20 has had nothing but bad experiences with ACT at the track. Your statement that it must be installation error is misinformed because you did not have the experience that G20 had with the ACT. your statement rules out any other possibility for clutch failure other than installation error. That IMHO is a mistake. I think the ACT and Exedy twin disc are both excellent clutches and it all depends on what you want to get out of your car.
I myself have the twin disc Exedy and it is an awesome clutch. My buddy has the ACT 6 puck and it works great as well (just have to give the thing a little bit more revs for smooth engagement). But whatever you do, stay away from the Exedy single disc unless you want a good left leg work out!
I myself have the twin disc Exedy and it is an awesome clutch. My buddy has the ACT 6 puck and it works great as well (just have to give the thing a little bit more revs for smooth engagement). But whatever you do, stay away from the Exedy single disc unless you want a good left leg work out!
Originally Posted by marksae
GOKOU, have you tried adjusting your clutch pedal? I've said it a thousand times and I'll say it again! Adjust that clutch pedal!
http://tinypic.com/a2vv3t.jpg
https://www.evolutionm.net/forums/sh...d.php?t=150659
Originally Posted by G20
Again! Please pay attention to what I mentioned is that the problem is only if you drag race the car, i.e. shifting gear to gear fast at high rpm at or above 7000. The 100s members that you mentioned, some of them may not doing that.
The first installation is done by a dealer so yeah, they were not doing it perfectly. the second, it's a reputable shop, how about Road Race Engineer. And it was fine on the street, i.e. full to 7200 rpm, push in the clutch normally, the rpm will drop to about 5000, shift and no problem.
But at the drag, I just can't shift it fast, i.e. full to 7200-7500 rpm, push the clutch in real quick when it just hit the bottom shift the gear real fast (good timing) with the gas pedal a little depress to keep the rev from falling too much. I did it successfully ton of times with my stock clutch but can't do it with the ACT. I was stuck so I switched to Exedy before determine if I should send my tranmission to TRE but hey it solve my problem. I let this problem drag on for almost a year before I decided to switch to Exedy twin-plate.
So hey! If you're not doing drag racing stuff, no problem. But if you do and with the ACT and running into similar problem. Keep this in mind. Be cool!
Originally Posted by GOKOU
THe only thing about a twin disc that I don't like is the rattle
ACT is an overall very nice clutch I cannot comment on the Exedy twin since I've never driven one.
The only problem I've noticed with the ACT is when shifting at 7500+ rpms from 1st to 2nd ... I can't find 2nd gear. It seems like I hit a wall and 2nd gear is missing. I can't be positive that the ACT is causing this. But I can shift at 7500 + rpm in any other gear.
I wonder if stiffer transmission bushings from Buscher would solve this problem?
The only problem I've noticed with the ACT is when shifting at 7500+ rpms from 1st to 2nd ... I can't find 2nd gear. It seems like I hit a wall and 2nd gear is missing. I can't be positive that the ACT is causing this. But I can shift at 7500 + rpm in any other gear.
I wonder if stiffer transmission bushings from Buscher would solve this problem?
Originally Posted by GOKOU
I tried doing that along with changing tranny oil but no help. The thread on the clutch rod is almost out.
http://tinypic.com/a2vv3t.jpg
https://www.evolutionm.net/forums/sh...d.php?t=150659
http://tinypic.com/a2vv3t.jpg
https://www.evolutionm.net/forums/sh...d.php?t=150659
Just to answer a couple questions...
1) We do manufacture the Twin Plate clutches for Cusco. Extremely similar in design... in fact the only difference is in the color of the cover.
2) We also manufacture the Twin Plate clutches for RalliAat. Extremely similar in designe... in fact the only difference is in teh color of the cover.
As far as rattling goes - it all depends on the car. I have heard triple carbons that sound like you threw a rod - and I have heard them silent. I really depends on the individual characteristics of the car and the vibrations transferred through the drivetrain. Obviouly things such as metal or urathane motor mounts will transfer more vibrations and in turn give you a noiser gearbox.
Good luck to all and thanks for the support.
1) We do manufacture the Twin Plate clutches for Cusco. Extremely similar in design... in fact the only difference is in the color of the cover.
2) We also manufacture the Twin Plate clutches for RalliAat. Extremely similar in designe... in fact the only difference is in teh color of the cover.
As far as rattling goes - it all depends on the car. I have heard triple carbons that sound like you threw a rod - and I have heard them silent. I really depends on the individual characteristics of the car and the vibrations transferred through the drivetrain. Obviouly things such as metal or urathane motor mounts will transfer more vibrations and in turn give you a noiser gearbox.
Good luck to all and thanks for the support.
I have gone from the ACT to an Exedy twin and back to an ACT after having the Exedy in for 3,000 miles or so. While the Exedy did have a lighter effort as far as pushing in the clutch, I felt that the ACT was more user friendly. Please do not take this as an attack on the twin disk, for many it would be the answer. But I did not like the chatter nor the take up, it was much more abrupt then the ACT. It also shuttered on the take-up whereas the ACT drives like stock. I drive my car nearly every day (I also ride a motorcycle) so it is an every day driver. I will put it this way, my wife absolutely could not drive the car with the twin disk in it, she kept on stalling it and this is after driving a stick for five years. But with the ACT she can drive it just fine. While this may not sound significant, it just shows how easy the ACT is to live with. And for the record, I have absolutely no problem shifting at 7,000+ rpm's with the ACT. For me it is just a better fit I guess. Take it for what it is worth....
Originally Posted by marksae
How high along the clutch pedal travel is your clutch engaging? You still have some room for adjustment. Your picture shows you have 3 threads left. One turn can make noticeable difference. Just make sure you still have some play left at the top of the pedal travel.
Other then nosier gearbox\drivetrain noise (noise when clutch pedal is out) which I'm use to and the ability to shift at higher rpm I have no complaint about the ACT clutch.
Thanks.
I have an ACT and have been to the drag strip multiple times. I have had no problems at all with high RPM shifts (7500 or higher consistently). I would have to say it is user error or the installer?? Either way glad to hear the exedy is working better for you, I think that will be my next choice (think my power level is a bit much for the ACT now).
I believe this has to be a fitment problem due to different tolerance issues from clutch to clutch. I am having the same symptoms with my new Centerforce Dual Friction Clutch. It shifts smoothly at slow to moderate speeds, but as soon as I rev it to 7,500 RPM it hits a wall from 1-2 and 3-4. The clutch feels like it is just not disengaging at high RPM's. I've adjusted the clutch, changed the fluid with no results. I've run 2 of these clutches on my Talon AWD without any problems in the past. I've talked to several Evo owners with different aftermarket clutches at the dragstrip and they are having the same issues, yet others have no issues. My installer is top notch, so I can't blame them at the moment.
EvoTio like I said earlier hitting the wall while shifting issues is probably the cause of too soft Motor mounts and Transmission bushings.
Buschur has already developed stiffer transmission bushings and now is testing the motor mounts.
Informative info below
For motor mounts... https://www.evolutionm.net/forums/sh...d.php?t=154412
For transmission bushings... https://www.evolutionm.net/forums/sh...d.php?t=148247
Buschur has already developed stiffer transmission bushings and now is testing the motor mounts.
Informative info below
For motor mounts... https://www.evolutionm.net/forums/sh...d.php?t=154412
For transmission bushings... https://www.evolutionm.net/forums/sh...d.php?t=148247
Last edited by Taimur; Aug 23, 2005 at 11:28 AM.
I can assure you it's not driver error. I've been driving manual cars for over 10 years. Never had this problem with the stock clutch also. My brother drove the car and experience the same problem and he's been driving longer and better at manual then me. It's either the installment, tranny, clutch adjustment, or some tolerance on the ACT clutch.
I'm not saying the ACT is bad. I just told my story with the clutches. That's why I don't post a thread about it but only get in this member's thread to tell him/her my story. What ever problem it is, I have better luck with the Exedy twin than the ACTs. Also, the cost of ACT with a fly-wheel will make it about $400 different comparing to the Exedy-twin not $700 or more like it appeared to be since the Exedy is come with its own flywheel.
Pushing over 500 whp on the car now, I think the next best mod is TRE tranny so that I can feel better doing the power-shift to get into low 11s.
Pushing over 500 whp on the car now, I think the next best mod is TRE tranny so that I can feel better doing the power-shift to get into low 11s.
Last edited by G20; Aug 23, 2005 at 12:11 PM.
Originally Posted by G20
...Even my friend after install the ACT and went to the drag with me, he complained the ACT grin too much that he traded his EVO in for an 05 next day. I posted up here and doesn't get much help from the ACT man either. He seem like he only interest in posts that about-to-buy the clutch but not the one that has problem. I understand that it's the cruel business world that just want to make money...
As far as the Exedy Twin versus ACT Street comparison, I think you are comparing apples and oranges. The Exedy compromises noise and driveability so I consider it to be really more of a race clutch. I think a closer comparison would be our 6 puck kit like what Turbotrix uses, since it too has these compromises and even then you are talking two different animals. I think you would find our 6 puck to shift better than our street disc since the disc is lighter. For Turbotrix to run 9.7 in the 1/4, it must shift pretty good. Go a step farther and use the 4 puck and it probably will shift even faster, but there is less material to do the work so it will be easier to burn up so we usually don't recommend it. The bottom line is that there are always tradeoffs.
Don't get me wrong, Exedy makes great parts but whatever clutch you get it should be used as intended. Don't buy our street clutch and expect it to shift lightning fast. We have a race clutch better suited for that. Don't buy an Exedy twin ceramic and expect it to be totally quiet and streetable. Exedy makes a street clutch for that.