You obviously havent been reading anything in this thread at all. Everyone with this problem DOES NOT have an ACT. I personally had the exact same problem on my Evo and I had the RRE X clutch. There are numerous posts of other people saying they have it with clutchmasters, stock, etc. It is not isolated to ACT clutches by any means whatsoever.

 

Agreed this is not just an ACT issue only. ACT just happens to be a popular clutch among the aftermarket crowd.

 

No offense bud but do your research BEFORE posting in such a heated thread. The lockout issue is directly related with single disc clutches NOT twins. If they were to get say Clutchmasters or something similar they would experience the lock out. Now people going from ACT to an Exedy Twin ( which is prolly the most popular switch) would'nt experience lock out. What they would experience is ALOT of Noise.

This isn't an ACT only issue , People running in here and saying things like this with out listening to the Big players in this game ( TT, RRE , ACT) are creating an bad reputation for ACT when it's all singles that are experienceing this type problem.


ACT is the most popular single disc as stated earlier , Hence why this whole thread is about lockout issues with ACT and Not Clutchmasters. But there was one a while back maybe 8 months where this exact same problem was being discussed and it died in hours because no one here runs CM, everyone runs ACT.

GET my point?

 

perhaps its just the different clutch engagement system that the evo uses..if 1g/2g dsm donot experience lockout with a smiliar single plate clutch,maybe the pull style system just does not like single plate clutches,the stocker is a single but is weak and slips..what other cars have a pull type clutch do they experience lock out with single disks

 

I never had a DSM so I can't speculate whether it has to due wth the difference engagement system , But I can say that I think your right about the single plate and EVO's not liking them. But as with everything in Modification of this car , there are always trade-offs. Any change you make to this car has some sort of trade- off.

Take for example Twin plates, No lock out but owners complain of the most god awful noises.

 

I believe we are expecting the first batch in late October or early November. I don't want to turn this into an advertisment. Email me for prototype photos and specs if you want them.

 

U have mail.

 

Clayton,

I took your recommendation on the ACT (from 2 months ago) and picked one up recently. Been driving for about ~2 mo now, no problems yet. When I had it first installed (no adjustment made from the factory setting) the clutch was picking up about 2 inches off the floor. It was really really close to the floor and I actually stalled a couple of times on the way home because I was not at all used to the ridiculously low engagement point. I figured it was just something I had to get used to.

When I drive in to work there's a long stretch of empty road that I take from a roll from about 30mph->100mph, banging through the gears. I do it nearly everyday - when the ACT went in, I noticed I couldn't shift in high rpms. Anything about 6000 made it difficult, and above 7000 it was basically impossible. I looked into pedal adjustment, and now the engagement sits in the middle about. It feels good, and my shifting problems are gone.

With the pedal engaging so close to the floor it was basically an issue of the clutch not fully disengaging when I tried to shift, causing the "lockout" problem. Since the adjustment I have been trouble free - and yes, I still do the 30->100mph thingy every day. It's fun and I can't NOT do it. :-D

That being said, I know it's not really relevant to your situation - but maybe give you some hope that it may not be the clutch's fault entirely. Hope you figure it all out soon, buddy.

 

What you described sounds pretty typical. We could design our street clutch so that there is no need for adjustment at all but it would be more like 2700lbs instead of 3000lbs which sacrifices torque capacity or we could have used a more expensive diaphragm but then the cost goes up. Instead we sacrifice a little adjustment.

Stay tuned. I hope you guys like clutch tech...
So far I am on page 10 of my web page regarding the EVO clutch. Rather than just addressing a few issues, I am also thowing out a lot of free information and insight about clutches in general but I don't know how well packaged the information is. It's not hype or entertainment so it's going to take some attention on the part of the reader. I wanted to put some of this information together anyway so this is a good excuse to do so.

 

And for supposedly every ACT EVO clutch ever made ruining the lives of all of the suckers that bought them... I have only had two people locally contact me about getting it adjusted. There is still an open invitation to all the legions of EVO owners having this horrible problem to stop by the shop for a free check up, adjustment and advice. Regardless of where you bought the ACT and who installed it. If you can somehow limp your shiftless ACT EVO here, I'll try to make your life better.

mike@roadraceengineering.com

Mike W :-)

 

There is something that I don't understand. I am not a particularly good driver...so maybe my thinking is completely backwards.

In this thread several people complain about having the engagement point up too high. I understand how that could be difficult in an aggressive seating position ...but other than that, wouldn't having it up high be best??

If you go to the extreme opposite for comparisons sake ....having the clutch engage right off the floor. During your ultra_crazy_fast drag racing shift ...you have to make sure the pedal hits the floor before you are jamming into that next gear. Would it not be better to have it up as high as possible?? With a high engagement point couldn't you make your shift and never have fully depressed the pedal?

Would it not be best to have your clutch doing it's job right after you hit the pedal ...rather than after several inches of useless travel??

...just curious

 

Doh!!! I wish I had more time to spend here in So.Cal this week. I would definitely take you up on this offer, Mike. I'm also getting the lock-out with my RRE X-clutch.

-D

 

Just back from track today and my ACT clutch give me no high rpm shifting issues at all. Pulled personal best 60' of 1.604 and personal best 330' of 4.877. After I had the clutch installed by my friend I didn’t even do the recommend 500 mile break in period and the ACT clutch has held up fine with a lot high rpm shifting with no blocking issues. The clutch pedal didn't even need to be adjusted as the clutch high was just like stock, but with a heavier nice feel to it.

 

sarcasm much? lol. thanks for the help Mike I took it out that same night and made some money

 

Its a 15min adjustment. Literally . It would take you longer to drive to RRE than it would for Mike to adjust it.