The Streetlite is better suited to driving in areas like San Francisco for example where there are lots of hills and inclines and the added weight of the flywheel can be of benefit when moving from a standing start or as I mentioned before in drag racing. But all of this is relative to the driver, some adapt quickly to the change in throttle input required by a lightened flywheel while others may take more time.

The improvement that I prefer with the Prolite is in the acceleration through the gears (the rpm's climb sooner) along with the improvement in throttle response that is directly related to the lighter weight of the Prolite. Both do an excellent job but we decided to offer 2 different ones rather than take the one size fits all approach that others have taken. Let me know if you have any other questions.

 

Well just in case you missed it here's a thread with people complaining of lockout.

https://www.evolutionm.net/forums/sh...d.php?t=347028

Am I saying that it's Exedy's fault? No I'm not. I'm just saying that there are reasons that parts can/will experience problems. Is it fair to say because the people in the thread above experienced lock out with their Exedy that the company doesn't make a good product? No it isn't.

For the price of the twin disc it should hold more power than anything that we make but that isn't always the case.

 

Glad I could help. Thanks for the business and questions . I'd like to hear your thoughts (good or bad) once you have it installed.

 

Honestly, Ive never had a problem with ACT in any of my other cars...
But I had the street disk installed in my Evo, and I get locked out 75% of the time. (And I've adjusted my clutch rod at least 10 times) I've had the clutch installed on my car for just about 4k miles. (And I rarely beat on my car)

 

I had the ACT for around 30k miles, never ONE lockout problem. I highly reccomend the clutch and would defiintely get it again.

 

I have had my ACT for about 35k now, and I highly recommend it as a DD friendly clutch at a VERY reasonable price (bought it from Chris at NoLimitMotorsports). . .it was installed at Turbotrix, which is why I suspect I have had very few issues with the infamous lockout, or other issues.

Installing clutches isn't easy, might as well take it to a reputable Evo shop that has done thousands of them - it'll save you the headache in the long run.

The ACT HDSS clutch has already outlasted my stock clutch (which barely made it 20k with NO launching, racing, or abusing of any kind), so I feel like I have already justified the expense.

BTW, mine is mated to the stock flywheel since I DD and didn't want to deal with a touchy throttle in stop and go I-95 traffic in NYC!

Suneil

 

I had an ACT, again no lockout issues. I STRONGLY reccomend using a Mitsubishi TOB and not the ACT unit.

I am looking for an XTSS and a PROLITE flywheel.

 

Thanks for the support guys .

FWIW we use EXACTLY the same bearing that Mitsubishi sells in all of our kits. It also happens to be the same bearing that is used in the 02-05 WRX and 04-08 STI and they are ALL made by Exedy since the bearing and wave spring design is patented by Exedy on these particular pull type clutches.

 

So an ACT TOB and one ordered from the Mitsubishi Parts desk is 100% identical in every way shape and form?


How much is an XTSS and a PROLITE flywheel?

How does the Prolite flywheel compair to the Fidanza Flywheel of 9.5 pounds?

 

i'm ssurprised no one has mentioned using poly front motor mounts or engine damper to fix lockout issues.

i had a terrible 1-2 lockout with my act mb7-hdss clutch and streetlite flywheel. after installing the ingalls stiffy it went away, the powerflex front motor mount also has shown the same results in my experience. i've got both now and haven't had a lockout issues. i after 45,000 miles i started to grind gears a bit from being to lazy with the clutch pedal. a slight adjustment with the pedal and that went away entirely too.

oh, and i'm at 500whp rev it out to 8000rpm and have no problems whatsoever (although i get the sneaking suspicion i'm at the limit of the holding ability, even thought it can still grab and cause all 4 wheels to spin with to much throttle).

 

The bearings are exactly the same. We don't make bearings (we simply rebox them and assign our own part number) but we always try to use the same bearing as stock or of equal quality as OEM in our kits.

As the manufacturer we only sell at MSRP so we aren't competing with our distributors that buy and stock our product. Your best bet would be to contact one of the vendors on here.

Other than the fact that they are both flywheels for an Evo there aren't too many things in common. The Prolite weighs more at 10.1 lbs, it's made of forged chromoly steel (no flywheel is stronger), it's a 1 piece unit with an integral ring gear that is induction hardened (unlike any aluminum unit) and it's resurfaceable. Those are the key differences.

 

Is the Streetlite also forged? Do you know if stock is forged?

 

All of our lightened flywheels are forged and that would include the Streetlite.

The stock might be forged but I'm not sure, but they are a bit on the thin side which makes them easier to warp.

 

Thought i'd add my .02

Never had much experience w/ ACT's being this is my first Evo although i did have an ACT in my 1G Talon buti sold that soon after i installed it.

I know i've pm'd you about the lockout issue i've had in the past Daryl(ACT) and i too have tried the things you suggested but i still have a problem w/ shifting and lockout.

Mine is a HD p/p w/ the organic street disc.......i'm betting that my hp level has a bunch to do with it but the car puts down over 500hp on a Mustang dyno and launched w/ about 10-12 psi off the line.

I've driven other DSM's w/ ACT's and enjoyed them and think that for the most part that ACT makes very good quality products.

I'm just at a road right now where i don't care to do another clutch job just to try out a diff. disc/pp/fw

So what should i do?

We have a good friend w/ an Evo9 w/ similar hp and mods as i and he just switched to the QuarterMaster Twin Disc and he loves it. From the limit amount of seat time i had in that car it felt good and seemed to allow a lot of slip off the line but still had lots of grab to it.

Daryl(ACT) - I know you offered to take a look at my parts once they are out and i may take you up on that but i'm still undecided as to what to run

 

No problem.

Will do. Its going in soon.