PSA: ACT vs EXEDY street clutches

[SmsAlSuwaidi]

It also may be driver error or "lack " of experience with such clutch.

I know @King Tut had a shit load of miles on it with no issues.


Sent from my IBrick

[King Tut]

Originally Posted by SmsAlSuwaidi

It also may be driver error or "lack " of experience with such clutch.

I know @King Tut had a shit load of miles on it with no issues.

I had the ACT sprung 6 puck with their less aggressive HD pressure plate and their lightest flywheel rated to hold 345 ft-lbs. It worked flawlessly and held the 265 ft-lbs my car made for over 15,000 miles.

[King Tut]

Originally Posted by Vracer111

I mean when you took off the "ACT clutch"... did you leave the Pro-lite flywheel on...I keep getting conflicting reports whether or not just ACT Pro-Lite flywheel will work properly with the stock clutch/pressure plate setup for FRS fitment...

I love the stock clutch/pressureplate setup...I just want to replace the factory flywheel with a lightweight one and the ACT Pro-Lite is the best design for minimal inertia (quick spin up/deceleration) and is steel not aluminum.

I believe the ACT documentation says that their flywheels do not work with the OEM clutch and that is why all their clutch kits come with flywheels.

Originally Posted by ACT

Application Note:
Must be used with ACT pressure plate and disc

http://www.advancedclutch.com/600700

[King Tut]

Originally Posted by evan

PRE did the install of the ACT clutch. Why would you assume that I installed it without asking? They also disassembled it but found no problem. That doesn't mean there isn't a problem. Just not something verifiable by the naked eye. Even PRE thinks the ACT clutches are problematic. ACT wants the PP to test it. That should explain enough.

PRE also installed the new EXEDY. I never waited to have a professional look at it. It was looked at from day 2 but the problem has been very sporadic only getting worse over time.

So the place that installed it removed it and said it was installed properly and appeared to be in perfect working order. PRE says ACT is shit, yet they were perfectly fine with taking your money to install it for you. Sounds like a conflict of interest to me.

[King Tut]

Originally Posted by kiichiro

Lol. Look. Closely at install, setup and clutch adjustment. If you're not going into 1st you're not disengaging the clutch. Who installed it?

There in lies your issue

Easiest test is to try going into first with the engine off and then with the engine running, and you will know whether it is the clutch not disengaging or if it is a transmission/shifter issue.

[SmsAlSuwaidi]

@King Tut such triple post


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[King Tut]

Originally Posted by wu_dot_com

Personally, I've done the clutch grab adjustment DIY and I don’t believe the actual clutch release point was change. the reason being, the clutch grab adjustment DIY adjust the takeup/ slack of the clutch pedal prior to hydraulically actuating the slave cylinder.

How many of you guys with issues with your ACT have modified your clutch grab adjustment or hydraulics? I never modified either.

[SmsAlSuwaidi]

Originally Posted by King Tut

How many of you guys with issues with your ACT have modified your clutch grab adjustment or hydraulics? I never modified either.

This ! @desert frs had his modified before install and the clutch never went in properly, nor after trying to adjust it again. I just slapped mine in and its still amazing


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[King Tut]

Originally Posted by SmsAlSuwaidi

@King Tut such triple post

I read backwards through the thread, so I had to go back to the start and quote some posts. Such poast count.

[w00t692]

Search for clutch causing crankwalk. look through the first few pages, note how every link is ACT.

It's ridiculous, but it's just the fact that most thrust bearings on engines aren't made for a pressure plate putting a little over 2 tons of force on it.

[evan]

Originally Posted by SmsAlSuwaidi

It also may be driver error or "lack " of experience with such clutch.

I know @King Tut had a shit load of miles on it with no issues.


Sent from my IBrick

Do you know me? Why do you feel it is necessary to make assumptions with no basis? Also, there is no reason to put quotes between "lack". Enjoy your "IBrick"..

[evan]

Originally Posted by King Tut

So the place that installed it removed it and said it was installed properly and appeared to be in perfect working order. PRE says ACT is shit, yet they were perfectly fine with taking your money to install it for you. Sounds like a conflict of interest to me.

Believe what you want.

[wu_dot_com]

Originally Posted by King Tut

How many of you guys with issues with your ACT have modified your clutch grab adjustment or hydraulics? I never modified either.

mine was adjusted after ACT installed the prototype clutch assy. after the problem started @ approx 12K miles, ive brought it back to dealer for inspection. they have adjusted to factory recommend setting.

judging from the overall experience of everyone. i dont think ACT clutch themseleves are bad. its just that the quality control needs to be tighten. if you have a good clutch setup, then you will have an outstanding clutch w/o problem.

its more of a hit or miss with ACT. judging from the online feedback, seems like ACT got more hits than misses.

[wu_dot_com]

Originally Posted by w00t692

Search for clutch causing crankwalk. look through the first few pages, note how every link is ACT.

It's ridiculous, but it's just the fact that most thrust bearings on engines aren't made for a pressure plate putting a little over 2 tons of force on it.

i think in general crankwalk is unavoidable when it comes to high clamp loads.

the bearings those cranks sits on are radial bearing with limited axial load capability. thus for race application, high clamp load would be fine if the engine is being rebuild frequently. however for everyday longevity perspective, no radial bearing can withstand those higher clamp load fatigue cycles.