ACT Street Disc is a piece of shit.

[1LE]

When I first came to DSMland, I was always amazed that anyone would use an ACT clutch (I come from Toyotaland originally, where ACT = complete junk. Despite all the warnings a friend had one installed on his MR2 and it failed about 2000 miles later and took a very expensive JUN flywheel with it.). However, it seemed to work very well for DSMers and it seems that the complaints are few for how many people run them. YMMV I guess.

 

[Flybiyou]

Did everone notice that the cars that are having these problems with the ACT clutch's are all AWD. Maybe it was a bad batch of AWD clutchs.

 

[bigfoot]

Maybe, but AWDs are much tougher on clutches because there is less wheel spin to absorb the shock.

 

[95GSXBLUR]

Did everone notice that the cars that are having these problems with the ACT clutch's are all AWD. Maybe it was a bad batch of AWD clutchs.

the clutch is the exact same clutch. there is no difference between a clutch for a GST or GSX. so there is no "bad batch of AWD clutches" it would be a bad batch period. AWDs just beat on clutches and their drivetrains a lot more.

 

[DNTBLNK]

I'm aware of several manufactures who were having problems with dics. I believe the center hubs were a bit too large in thickness, causing spring to "pop" out. I've seen worse than yours.

One manufacture pulled his entire stock and recalled what was sent to distributors. Not sure if ACT actually recieved these bad hubs or what, but it could explain what happened. I'm sure they wouldn't admit to it if they did.

 

[GSXlaunch]

AWD here too...Hopefully I am not too far off topic here but I need some advice. I just installed an ACT 2600 with street disc and fidanza flywheel. Anyway, went to start the car for the first time since the install and the thing is chattering like mad. Please note I have not even driven the car as it is still on jack stands. The tranny does not have any fluid and the t-case is still not installed. I wanted to see how the engine would rev with the lighter flywheel and also to check to see if I can get into all the gears with the clutch pedal pushed in (which it did). Its just the nasty chattering. When I push the clutch in the chattering goes away completely. I did use grease on the tob. My question is could this be from the tranny not have any fluid...? Does the ACT need to be driven for a while break everything in to get the chattering to stop? Not sure what to check for....any help is appreciated. Thanks

Edit - it made this chattering sound with my old stock clutch as well (actually it is louder with the new set up). I wonder if this could be the tranny. Any suggestions?

 

[DNTBLNK]

Chatter is bad, and nothing to do with break in.
Something is loose or not properly installed. Maybe the fork is not seated. Did you use a new TOB? You should pull the trans and start over.

 

[GSXlaunch]

I think you are right...not what I wanted but oh well at least I will get practice at removing the tranny. The TOB was new and came with the act kit. I probly put it on back wards if thats even possible.

 

[95GSXBLUR]

The tranny does not have any fluid

woah, what the hell are you doing running the transmission with out any fluid? are you nutz? for your sake i hope you didn't do any harm to it. my transfercase locked up because all the fluid leaked out. running no fluid... what were you thinking? gear boxes, transfercases, and diffs all need gear oil in them, if they don't have it you're running metal on metal and that's gonna heat it up and chip off metal chunks. you probably just shortened the life of your tranny by a bunch. :thumbdown

i had some nasty chatter when i installed my 2600. it went away @ about 7500 miles.. everyone i talked to said it was because it was the stock flywheel not ground properly for the new clutch.

 

[GSXlaunch]

So you are telling me that even if I am in nuetral there are gears in the tranny that are turning at the same speed as the engine? If that is true, than I most likely need another tranny. With the Fidanza flywheel the revs were getting up to 5-6k + with ease. Note: with the engine idling I could grab the output shaft for the t-case and stop it from turning.

Just the fact that the output shaft was even turning with the car in nuetral and the clutch pedal down points to a disengagement issue with the clutch... does anyone else care to put this into perspective for a DSM rookie such as myself?? Thanks BLUR I will put some BG Sync Shft II in tonight or tomorrow and try it again.

 

[95GSXBLUR]

it's always good to make sure everything is ready to go before you turn your car on. get everything ready to drive before you test it, that way you don't forget something and do more damage is something is wrong with the car. you want everything to be back to original spec, so the part you are testing is the only variable. your clutch is still engaged if shaft is spinning. did you have your wheels on? were they spinning? (front only because i know your T-case was off) just be careful dude.. double check everything.

 

[GSXlaunch]

Nope no tires, no front shafts, no t-case nothing on the tranny whatsoever. I dont even have the flywheel cover on yet. I can see the flywheel turning. I tried to stop the flywheel from turning with my hand but it did not work---just kidding. I thought it was normal for the tranny to turn somewhat if it has no load such as shafts, rotors etc. to turn but with the chatter I am thinking it is an adjustment issue or something was not installed correctly. All I was doing by running the car with no fluid, shafts etc was checking to see if I could actually engage each gear with the pedal pushed in and the car running. I think I might try adding a little gear oil to the tranny to see if it quites the chatter any.

 

[brian524]

What are signs a disk has gone to shit (springs falling out)? My 2600 engages fine and goes through gears fine, but at idle just doesnt feel smooth at all, feels like its trying to engage without the clutch engaged, but my engagement point is about an inch off the floor. I also get bad vibration/chatter when i get off the gas in a gear, only in some of the gears though.

 

[laserspeeddemon]

http://www.dsmtuners.com/forums/showthread.php?t=133330

go here, its your fault. I did the same thing.

 

[GSX503]

I was just reading thru peoples opinions about ACT. I had a all stock 98 GSX and the stock clutch went out at 39k, due to my drivings. I bought a CF DF, it last me 30k+ before it went bad. So then I decided to go ACT 2100. After 5-10k miles, it starts to make this squeeking noise at each shift. Hard to put stick into gears, so at one time i've got so upset and was at a stop light and it turn green. I had to force the stick into gear 1, it got stuck there and will not come out. So I drivin it on 1st into a parking lot and force it back out, I heard claammm. The tow guy came and said I might of lost my clucth. DAM!!! I tow it to a local Mits. shop, they said tranny was all gone when I lost the clucth. Lucky thing the car had less then 60k, they factory warrenty my tranny but not the clutch.

Remember my GSX was still bone stock with intake and BOV.

 

[Revolution]

Hmm this disturbing. I went throught the entier thread and it seemed it was mostly the ppl whom were running an act 2600 pressure plate and a street disc that ran into problems with the exception of maybe two to three indaviduals whom ran with the 2100.

Could it be the chattering ccomes from the act replacment tob wich I've read isnt better quality then the mitsu. It seems this whole ordeal comes from the springs in the street discs , but is their a difference inbetween the performance street disc and the oem replacment or are they both the same entitiy?

I'ts very hard to comprehend how the center of the friction disc can give enough to pop a spring out.

I have met a few ppl running an excedy replacment setup ,with no apperent problems.

But then this is not to be taken lightly as these problems might cause serious harm , even though it's harming our wallets and fueling our already throbing headaches.

 

[laserspeeddemon]

Well, most people that do thier own work don't put in an OEM clutch. People like us usually up-grade. Its just the luck of the draw. I put in another ACT2600, and replace those dowel pins, and have not yet had a problem. On Sunday, I will be putting the Talon to the test, I am going Nurburgring. If you played alot of racing simualtors you know that the full track is a HARD track to manuever on. I will make a vid of it and post my results. If this don't cause the clutch to fail, it probably is not going to fail.

 

[RoasT BeeF]

All ACT clutch kits come with a Mitsu OEM throw out bearing now.

 

[TurboStutr]

I recently joined the world of blown up ACT street discs. i thought it just wore out, i put over 42,000 miles on it in my FWD and it worked great. but it was starting to chatter pretty bad so i bought a new act 2100 clutch kit with another street disk. a few days later, still on my old act 2100, everything went out, the car wouldnt shift, i lost clutch pedal pressure, and the clutch wouldnt disengage. so i towed it to the mitsu dealership in town cause they are the only ones i trust with clutch and tranny stuff(no i still dont trust myself with it yet). when they showed me the disc i about shat myself. he said the spring that broke off lodged itself near the input shaft and jammed up everything. they even tried to install my new act 2100, but when they got it in, still no luck in disengaging the clutch. so, they took everything apart again and concluded that the input shaft is toast, and possibly other parts in the tranny as well. needless to say i'm a little ticked off. is there an easy way to open up the tranny and take a look to see if anything else is messed up? i've never even looked inside one of mine before. then its off to Shepard for a good ol' fashioned rebuild so i can get back on the road. maybe then i can keep it on the road for more than one summer in a row