Darkness of Death Posted June 26, 2009 Share Posted June 26, 2009 i am sure me and other members have bought the one labelled for STi. i inquired before i bought mine but it's good to point out your findings ~ thanks Link to comment Share on other sites More sharing options...
Gator GT Posted June 29, 2009 Share Posted June 29, 2009 URGENT: Do not buy ACT clutch kit labeled for 07-09 spec.B!! I purchased the ACT HD6-SSMM clutch kit labeled for the 07-09 spec.B. My installer attempted to install it today, and it is NOT for the 6MT. It appears to be a 5MT clutch and pressure plate. At first I was skeptical (as was the retailer when I notified them). But holding the pressure plate up to the OEM flywheel, there are very obvious problems. First, the diameter is off by almost an inch. Second, the mounting points do not come close to lining up. After sending in pics, the retailer is taking care of me. But what on earth was ACT smoking when they labeled this kit for the spec.B?? Now I'm out a full day of installer billable hours, with a clutch that still slips. Pics to come if you're interested. panther piss.....that sucks! "If we are to guard against ignorance and remain free, it is the responsibility of every American to be informed." - T. Jefferson Link to comment Share on other sites More sharing options...
fonts Posted June 30, 2009 Share Posted June 30, 2009 I bought the ACT HD-SS kit before they released one for the SpecB. Just bought an STi flywheel to accomodate. No issues here ...... Link to comment Share on other sites More sharing options...
grimlin Posted July 1, 2009 Share Posted July 1, 2009 I did exactly what fonts did. I actually read somewhere that the "ACT specB clutch" didn't work. I've had my clutch in for a few weeks now and it's amazing! good luck duke. Hope you get it taken care of ~Mary Link to comment Share on other sites More sharing options...
tsunami Posted September 21, 2009 Share Posted September 21, 2009 So if we buy STI clutches they will work fine with the Spec B transmission? My clutch is starting to slip from time to time in 4-6 at WOT a month or so after going stage 2. Link to comment Share on other sites More sharing options...
Gator GT Posted September 21, 2009 Share Posted September 21, 2009 So if we buy STI clutches they will work fine with the Spec B transmission? My clutch is starting to slip from time to time in 4-6 at WOT a month or so after going stage 2. yes. "If we are to guard against ignorance and remain free, it is the responsibility of every American to be informed." - T. Jefferson Link to comment Share on other sites More sharing options...
kirbwrx Posted September 26, 2009 Share Posted September 26, 2009 is there much of a difference between the spec.b flywheel and an sti one? if i got an sti one would it matter what year it was for? Link to comment Share on other sites More sharing options...
Darkness of Death Posted September 27, 2009 Share Posted September 27, 2009 dont think so. Link to comment Share on other sites More sharing options...
Strizzy Posted October 18, 2009 Share Posted October 18, 2009 Since I'm starting to slip around 3-4k rpm in 3rd and 4th gear, I'm looking to replace the clutch. So if I read correctly, I can get ANY STi clutch? And do I need a new flywheel, or can I keep the OEM one I have now? I'm at stage 2 and will be swapping in a VF52 in a year or two and looking for some recommendations. My bad luck build Link to comment Share on other sites More sharing options...
fonts Posted October 18, 2009 Share Posted October 18, 2009 ^^ You would get a clutch with an STi flywheel in order to work with the SpecB's 6MT. Link to comment Share on other sites More sharing options...
g0ndor Posted December 26, 2009 Share Posted December 26, 2009 thanks to everyone for the input - the thread is very helpful. so, from what i gather the recomended clutch is the act sti SB4-HDSS. an oem sti flywheel or an act flywheel can be used with that clutch. can someone with either the sti oem flywheel or the act streetlite flywheel provide a short review on driveability/noise. tia g Link to comment Share on other sites More sharing options...
tsunami Posted December 26, 2009 Share Posted December 26, 2009 I have the SB4-HDSS and the Streetlight flywheel. There is some chatter when not accelerating but its not that bad. Its a good daily driving setup I think. I daily drive my car and it feels much better than stock. I am currently at Stage 2 power levels. It does rev easier so you have to adjust to that, but its not a huge adjustment. Hope this helps you gondor Link to comment Share on other sites More sharing options...
Darkness of Death Posted December 26, 2009 Share Posted December 26, 2009 i didn't notice and faster revving on the flywheel upgrade Link to comment Share on other sites More sharing options...
kirbwrx Posted December 29, 2009 Share Posted December 29, 2009 how much of an upgrade would a stock sti clutch and lightweight act flywheel be? Link to comment Share on other sites More sharing options...
Darkness of Death Posted December 29, 2009 Share Posted December 29, 2009 the stock STi clutch should hold more torque than the stock spec b.. but it depends on what your goals are down the road. Link to comment Share on other sites More sharing options...
kirbwrx Posted December 29, 2009 Share Posted December 29, 2009 power wise i think i am done. just looking for when the stock clutch starts to go. want to replace with something that feels better than the stocker. If the sti wont be an improvement i will just get an act or similar. but if i can save money and get the sti and still have an improvement over stock feel then thats what i want. Link to comment Share on other sites More sharing options...
RallySport Direct Posted December 30, 2009 Share Posted December 30, 2009 The STI oem Clutch will be heavier pressure plate then the Spec B. The STi clutch has a higher clamping load to hold more power (i would be surprised if it did not, drove a Stock STi back to back with a Stock Spec B and the STi was noticeably heavier. Both where 2008). The clutch material itself is just the friction surface. Where the Pressure plate is the clamping load. You can get a more aggressive pressure plate, and use a stock clutch disc to get a higher power capacity unit. Or you can use the OEM pressure plate with a aftermarket disc to get similar results. We have gotten customers ACT discs to use with Stock pressure plates when they dont want a aggressive feel, but want a higher capacity/longer lasting wear.( HAS TO BE AN OEM EXEDY Clutch to do this) The Fly wheel in the Spec B is duel mass, making it easier to drive and quieter. But also heavier. There is no reason to get super aggressive clutches unless you need them. It will be harder to drive, and make noise in many instances. However getting rid of the duel mass flywheel and getting a ACT or Exedy will make a noticeable difference. Link to comment Share on other sites More sharing options...
kirbwrx Posted December 30, 2009 Share Posted December 30, 2009 The STI oem Clutch will be heavier then the Spec B. The STi clutch has a higher clamping load to hold more power (i would be surprised if it did not, drove a Stock STi back to back with a Stock Spec B and the STi was noticeably heavier. Both where 2008). The clutch material itself is just the friction surface. Where the Pressure plate is the clamping load. You can get a more aggressive pressure plate, and use a stock clutch disc to get a higher power capacity unit. Or you can use the OEM pressure plate with a aftermarket disc to get similar results. We have gotten customers ACT discs to use with Stock pressure plates when they dont want a aggressive feel, but want a higher capacity/longer lasting wear.( HAS TO BE AN OEM EXEDY Clutch to do this) The Fly wheel in the Spec B is duel mass, making it easier to drive and quieter. But also heavier. There is no reason to get super aggressive clutches unless you need them. It will be harder to drive, and make noise in many instances. However getting rid of the duel mass flywheel and getting a ACT or Exedy will make a noticeable difference. awesome! thats the kind of info i like to read. so when i need a new clutch, it will be an sti one with a light flywheel. Link to comment Share on other sites More sharing options...
dr_sharp Posted March 27, 2010 Share Posted March 27, 2010 So is the stock sti flywheel dual mass as well? Anybody know the difference in weight between it and stock spec.b flywheel? lol Link to comment Share on other sites More sharing options...
Guest Posted March 27, 2010 Share Posted March 27, 2010 STI fly is not dual mass. I don't know what's different between stock sti and specb flys. Part numbers are different. I understand people successfuly bolt sti clutches to specb flys, but whether the fly is heavier or not, I don't know. I'd imagine it may be the case given the character of the car. STI fly is pretty lightweight at 18.9 lbs, I believe. Link to comment Share on other sites More sharing options...
valerka Posted October 21, 2010 Share Posted October 21, 2010 Did folks who replaced their clutch had also replaced the TOB (release bearing), if you did how many miles did you have and will an STI TOB fit the Spec B? Link to comment Share on other sites More sharing options...
RallySport Direct Posted October 21, 2010 Share Posted October 21, 2010 Yes. Throw out bearing and Pilot bearing get replaced every time the clutch does. Reason is the bearings wear out, so to pull everything apart for $45 worth of parts is not much fun. Link to comment Share on other sites More sharing options...
valerka Posted October 21, 2010 Share Posted October 21, 2010 where will be a good place to get both bearings? My dealer wants $250 just for the TOB. Link to comment Share on other sites More sharing options...
RallySport Direct Posted October 21, 2010 Share Posted October 21, 2010 Sure, give us a call and I can get it for you for 1/5 of that price Link to comment Share on other sites More sharing options...
dr_sharp Posted October 21, 2010 Share Posted October 21, 2010 Sure, give us a call and I can get it for you for 1/5 of that price I'm adding you to my favorites list! Where were you a few months ago??? I'm that sucker that pays the dealer those prices lol Link to comment Share on other sites More sharing options...
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