Everyday I get several questions about which clutch someone should get and whether or not their clutch master cylinder will survive. Until recently I've recommended the Spec 3+ and the ClutchMaster FX400 (4 and 6 puck).
However here recently I have been helping several members on here deal with technical issues regarding their Spec clutches and they haven't received the best service. To be fair in a some of the cases it was obvious that install error was the culprit for the issues but Spec made a lot of errors in handling the situation BEFORE they knew that to be the cause. Also even when they did find out it was a manufacturing error on their part the service was lacking professionalism.
So that being said I made a few phone calls trying to figure out a solution for a replacement clutch that could match what the Spec 3+ can do and ClutchMaster has a disk for our cars that can fill that void. Also with the ClutchMaster single friction disk setup's you more than likely won't have to upgrade your master cylinder due to the fact they have a better design on their pressure plate fulcrum points than the other companies. You know what I mean if you ever jump from a a car running an Exedy to one running a ClutchMaster or spec there is a big difference in actuation pressure.
Now with the CM twin clutch you will have to upgrade your stock MC, there is just no way around that. However with the single disk set ups maybe only 1 out of 8 of you will have an issue and destroy your MC. This can be due to several factors though that go beyond actuation pressure. Cold / Hot weather can play a part in destroying masters as well so depending on where you live you may want to think about swapping it out.
So I am going to leave my recommendations pretty basic here.
1) For you spirited driver dedicated drag racer types who love to launch your car every chance you get you'll need the FX400 (4 puck) Part# 05-110-HDCB4
2) If your a weekend warrior track junkie that loves to road race and occasionally hit the drag strip and launch the piss out of your car you'll want the FX400 (6 puck) Part# 05-110-HDCB6
3) For those of you who love a daily driving feel yet love auto X and don't want to give up performance for drive-ability this is your clutch. This is what I would run now if I were to switch back from my twin. The FX400 Segmented full face disk. (This disk will also last the longest out of the singles if not abused) Part# 05-110-HDCBL
4) Now for anyone rocking over 500whp this is what you'll need to put the power down and not have to switch every few thousand miles. This clutch actually has a very minimal actuation pressure just like the others and doesn't chatter like other twin disks. Also not a widely known fact but the friction disks on this clutch come with nearly double the material of the competition. The fiber tuff and ceramic disks in the CM 850 Twin are 6+mm thick where the others come around 4mm and need replaced by 3mm. They justify the lack of friction material by telling you it's for less rotating mass and better high rpm shifts. I shift at 8500 with mine and have no issues at all so believe what you want :innocent: Part# 05-110-B-TD6.5 (Various disk configurations)
http://www.maperformance.com/mitsub...clutch-components-clutch-kits-clutch-masters/
Now once you pick your clutch and you want an upgraded CMC or your just worried about the stock one going don't bother with wasting money on a band-aid get this and save yourself multiple re-install issues and tow bills.
http://www.maperformance.com/magnus...r-upgrade-evo-x-magnus-evo-x-cmc-upgrade.html
However here recently I have been helping several members on here deal with technical issues regarding their Spec clutches and they haven't received the best service. To be fair in a some of the cases it was obvious that install error was the culprit for the issues but Spec made a lot of errors in handling the situation BEFORE they knew that to be the cause. Also even when they did find out it was a manufacturing error on their part the service was lacking professionalism.
So that being said I made a few phone calls trying to figure out a solution for a replacement clutch that could match what the Spec 3+ can do and ClutchMaster has a disk for our cars that can fill that void. Also with the ClutchMaster single friction disk setup's you more than likely won't have to upgrade your master cylinder due to the fact they have a better design on their pressure plate fulcrum points than the other companies. You know what I mean if you ever jump from a a car running an Exedy to one running a ClutchMaster or spec there is a big difference in actuation pressure.
Now with the CM twin clutch you will have to upgrade your stock MC, there is just no way around that. However with the single disk set ups maybe only 1 out of 8 of you will have an issue and destroy your MC. This can be due to several factors though that go beyond actuation pressure. Cold / Hot weather can play a part in destroying masters as well so depending on where you live you may want to think about swapping it out.
So I am going to leave my recommendations pretty basic here.
1) For you spirited driver dedicated drag racer types who love to launch your car every chance you get you'll need the FX400 (4 puck) Part# 05-110-HDCB4
2) If your a weekend warrior track junkie that loves to road race and occasionally hit the drag strip and launch the piss out of your car you'll want the FX400 (6 puck) Part# 05-110-HDCB6
3) For those of you who love a daily driving feel yet love auto X and don't want to give up performance for drive-ability this is your clutch. This is what I would run now if I were to switch back from my twin. The FX400 Segmented full face disk. (This disk will also last the longest out of the singles if not abused) Part# 05-110-HDCBL
4) Now for anyone rocking over 500whp this is what you'll need to put the power down and not have to switch every few thousand miles. This clutch actually has a very minimal actuation pressure just like the others and doesn't chatter like other twin disks. Also not a widely known fact but the friction disks on this clutch come with nearly double the material of the competition. The fiber tuff and ceramic disks in the CM 850 Twin are 6+mm thick where the others come around 4mm and need replaced by 3mm. They justify the lack of friction material by telling you it's for less rotating mass and better high rpm shifts. I shift at 8500 with mine and have no issues at all so believe what you want :innocent: Part# 05-110-B-TD6.5 (Various disk configurations)
http://www.maperformance.com/mitsub...clutch-components-clutch-kits-clutch-masters/
Now once you pick your clutch and you want an upgraded CMC or your just worried about the stock one going don't bother with wasting money on a band-aid get this and save yourself multiple re-install issues and tow bills.
http://www.maperformance.com/magnus...r-upgrade-evo-x-magnus-evo-x-cmc-upgrade.html