I'm about to purchase the ACT HDSS clutch and was curious what was the benefit of a new lightweight flywheel? Is it needed or just recommended? Should i just buy it to put it in at the same time? I know I'll save labor but was just curious of the benefits of both together.
thanks guys! and girls!

 

Before I did my clutch I talked to a bunch of people on the forum and a couple of the local guys. Everyone who did the clutch and stayed on the stock flywheel told me that they regret not going with a lighter flywheel. When I did my ACT clutch I had the prolite flywheel installed as well with no regrets.

 

just dont shift pass 7200 or ur gonna have lockout issues.. i cant shift at 8200 on the hdss with prolite flywheel

 

Not always true
I have zero lockout issues with mine, I've taken it to 7800 with no issues. If installed properly it shouldn't do that.

 

ehhh thats what i said until it happened to me

 

Hah an ACT on mine and had the same lockout issue. It is well know on this forum that ACT has lockout issues at high RPM. Maybe it doesn't happen to everyone, but there has been a lot of discussion. You should research other clutches also. Fidanza's 3.2 has been reviewed.

 

all clutches will have the good and bad reviews,
its seems hit and miss with the act clutches
the findanza 3.2 seems to be good at start and die pretty quick
as far as my research im going with the clutchmasters fx300
so far it has the best reviews in my opinion....

 

I have the act 6 puck and shift at 8400rpm and no lock outs

 

i have the hdss and flywheel and i get lockout everytime i go over 7000

 

Save the money and go with a twin disc and never look back. I wish I would have done this to begin with. Lock out will eventually happen with the ACT trust me, I have seen it happen time and time again.

 

exedy twin ftw!

 

I think it also depends on power level.. i cant shift 500whp at 8200.. thats for sure.. maybe on less but who knows.. ACT FTL

 

I just ordered the ACT HDSD version. Apparently this uses the solid disc which is lighter and should not cause the lock out issue.

 

i never heard a theory saying the torsion springs being the reason lock out with act clutch's occur. every one has their own theory i guess so i hope for your sake your right. most common one i read about is either the bent/warped disc or to thick of a disc. another good one is install error. over all i couldnt see myself happy and not being to high rpm shift so i went with clutchmasters

 

TTP from south Florida has a special model of ACT clutch he's selling that supposedly doesn't have any lock-out issues on evo's. PM him for some pricing and info before you order your HDSS.

http://www.ttp-engineering.com/

As far as the flywheel. I run a prolite. Yes it's nice. The engine revs very freely. It responds noticeably quicker to throttle inputs. Rev matching downshifting is nice. Now the drawbacks: Starting off in first gear is a little tricky. Starting off on a hill takes a lot of throttle and clutch work. Long story short it stalls easier and is overall harder to daily drive with a lighter flywheel. From a performance standpoint I would say lighter is better. I've also heard that it helps the longevity of the clutch with the overall reduced rotational mass of the unit.

If you do go lite flywheel get ACT. The fidanzas are an aluminum steel sandwich. There's been issues with the starter gear seperating. The ACT's are a single piece of steel.