I have everything. ACT 6 puck sprung, Blox front motor mount, SS clutch line, and shifter bushings and I get locked out in 2nd, 4th, and 5th. If I don't get locked out, I usually grind the hell out of 4th and 5th grinds regardless. I had to stop using NLTS because it was worse than regular fast shifting.

Exedy Twin HD for me!

 

I have not seen the model ACT listed. There are about 10 different combinations of ACT available.

XTSS does not belong on an Evo, period.

Fidanza flywheel is the biggest piece of **** available for the Evo. They recess the flywheel bolt holes which increase the likelyhood of stripping the bolts as the socket cannot get to it. Furthermore the ACT clutch disc rivets will HIT THE FIDANZA FLYWHEEL in an area of the disc that is not even near the disc material.

You want to get mad at a part, be sure you are pointing the fingers in the right direction.

Had you asked our opinion, we would have told you that the Fidanza FW is crap.

ACT states to use their flywheel for best results. This is for a reason. They don't sit up there at the manufacturing facility buying and testing competitor flywheels, they manufacture their own and because of that they test all of the clearances to unsure their flywheels and clutches work well together.

#1 you need to indicate which clutch model you are using.

#2 you need to recognize that the flywheel is a contributor to your issues. Every single Fidanza flywheel equipped car I have ever had come through the shop shifted like absolute crap. I have turned down custom tuning on some of them and told them it doesn't matter what power you make if your car shifts like dog****.

 

To all the people who don't have ACT lockout issues... what are your mods and what ET have you run at the track. I bet none of you track your evo with any kind of success ET wise.

 

maybe and maybe not...

i will say this...if youre trying to run 10's, 9's, etc...you should probably be on a twin disc anyway

 

The XTSS is selectable from ACT's website as MB7-XTSS ACT Clutch Kit (XT/Street) Mitsubishi Lancer EVO 8-9

Not to mention TTP sold and recommended the XTSS at one point in time.

Although recently, it would seem you've come to realize that the ACT clutches are the problem.

Search for fidanza lockout (6 results)

Search for ACT lockout (395 results)

In ACT's words:

Question: Can I use an aftermarket flywheel with an ACT clutch?
Answer: The ACT clutch system is designed to work with both stock and good quality aftermarket flywheels.

 

Have you done a clutch drag test? Park on level ground, put in gear, and rev slowly to redline with clutch in. If your car starts to move before redline, your clutch is dragging(not fully disengaging) which will cause high rpm lockout. For DSM's this is a common problem with the 2900. If this is the case, could be a simple adjustment, air in the hydraulic system, or a problem with the clutch itself. I have also seen springs break or pop out of the sprung disc and cause problems.

 

no problems with mine i got my act done 44,600 miles ago street disk

still holding hard

 

I had high rpm lockout in my VIII with an HDSS and a 3071R anything past 7000 at the racetrack as well.

 

I beat the hell out of my clutch. It was the 6 puck sprung disk with heavy duty plate. I had the streetlite flywheel and had it installed at a pro shop that specialized in awd.

I launched at 5000 and i would double clutch all the time. and I did shift fast and hard. I shut my deck off when i was shifting. I looked down after a shift and it reset my stereo. I would also shift around 8000. I never had any problems with lockout. However i had a friend that went and bought the focking double plate exedy and he just daily drove it and tracked it occasionally. He burned the hell out of that clutch and had to adjust it. He had it installed at a Evo and Sti only shop. He had his clutch for less miles than i did and his went out long before mine did. My Act is still running strong.

Never had an issue with it. Mine outperformed a clutch that was about 1400 bucks. Mine with everything totaled 800. His with flywheel was 1700 or close. Ha ha not to be the *** but who go the short end of the stick?

 

We have used the clutch in the past. The link you posted was to a used clutch we had for sale. It does not mean it is a clutch we recommend.
ACT clutches are not the problem. Its poor clutch choice for the application.

Its funny you have quoted all of our technical references and information NOW, but had you spent the time to research our post history before you wasted your money on a crap flywheel and the wrong clutch for your application, you would not have put yourself in this position.

We have installed hundreds of ACT singledisc clutches and we have seen every circumstance. Yours is nothing special and would have been anticipated the exact results you got before you installed it.

As we have already stated, XTSS has no business being on an Evo. It does lockout because the pressure plate takes too much force and the street disc can hang up at high RPM, ESPECIALLY IN CASES WHERE THE GARBAGE FIDANZA FLYWHEEL IS USED>

Google searches of lockouts of the two brands represent nothing. Fidanza sells about 2% of the singlediscs in the Evo market whereas ACT accounts for about 80%. You won't find many issues of the Fidanza clutch because hardly anyone uses it.

Furthermore we are discussing the ****ty Fidanza flywheel, not the clutch.
[/QUOTE]

GOOD QUALITY AFTERMARKET FLYWHEEL. Keyword. Fidanza is garbage for the many reasons we already listed as well as many other reasons we have not yet listed.

 

road race and tunning technologies the 2 biggest evo shops here in so cal both recomend the act clutch. I got my hdss installed at road race and i never had a single problem with it. i'm also running the fullrace hta twinscroll 35r kit so i'm no where nere stock.

 

As we have already stated, it is about selecting the proper clutch for the application. You have selected the correct clutch MODEL for your application. With 655tq holding capacity, light pedal effort that improves shift quality as well as the proper disc material for your high rpm shifting, you have your bases covered. Furthermore you have selected the matching ACT flywheel to complement the clutch which is why it works so well.

 

All I want to know is if my exedy twin disc heavy duty will be ok and not lockout...geesh...

 

I just took the time to make sure that i only had to select my clutch and flywheel setup once. Since I dont want to make 1400 hp and shift at 11000 i was fine with the clutch selected. But i cant say the same for my poor friend that spent more than twice as much to purchase his.

 

TTP, I have great respect for your experience and opinions. You guys are actually one of the best shops around, IMHO.

I only want to point out that the ACT XTSS clutch has been misery for me, and that it has nothing to do with user error, lack of supporting mods, or even my flywheel you hate so much Maybe you're right, maybe my flywheel makes the combination worse, but we don't need to dispute that here as long as we can agree that the XTSS causes lockout even without it, which it certainly does, based on the overwhelming outcry of the community.

If this thread has changed anyone's mind about buying that clutch, then perhaps we can all agree we can declare mission accomplished.