I've had an ACT XTSS in the past, but it ruined the slave and master cylinder, broke a clutch fork, and eventually snapped the clutch pedal inside the car. I switched to a Competition Clutch sprung 6 puck, and the pedal pressure is fine, but it gets kind of annoying to drive every day. I read somewhere that ACT redesigned their pressure plates, but I don't know what was changed. I wouldn't mind another ACT if it doesn't destroy my hydraulic system. They haven't answered my e-mail, yet. So, are there any other choices? Has anyone mixed and matched?

 

I made 522whp with 327torque with an act 4puck sprung and extreme pp. No issues breaking anything. I'm actually selling it now because I upgraded to a twin disc

 

you run into physics. the clamp load gets so extreme with an organic disc and that kind of power.


the exedy2 is an option. you only have launch or reverse chatter and it drives about like an organic once you're going. it's not even really that bad once it warms up from a launch. pedal pressure is barely over stock.

i would really stay with ceramic if you're pushing that or more with the torque

 

clutchmasters stage 3 with upgraded HD pressure plate.

i run that daily and it makes 440whp and 300ft/lbs no problem for the last 50k+ KM. i also ran 320ft/lbs thru it at one point in time for a while and it held no problem.

don't power shift or dump the clutch and it will hold all the power you want and then some.

 

Thanks for all the good info and help. I like the Clutchmasters FX300, but I'm concerned with glazing in stop and go traffic. Other than that, it sounds perfect. Another clutch that might be what I'm looking for is the Spec Stage 3+. It's not organic, but is full faced for smoother engagement over their Stage 3 6 puck.

 

The FX300 is a fantastic DD clutch. I used to have one. Now I have the FX400 and love that too but not as much for a DD. But my car isnt a DD so who cares lol.

 

look into a kevlar disc.

i personally like the comp stage 5 pressure plates.

 

I would hate having to worry about how I shift when I want to go. I went with the comp 6 puck. I hated the thing for the longest time now its ok. I take off without thinking about it in stop and go traffic. I think the only other option for me would be a twin disk, unless I dropped the boost. I burned up a organic clutch before the 6 puck, the one time you hit the gas a little too hard and then drop the pedal when passing. I'm sitting at 450hp torque was a tad under 300.

 

You won't glaze anything running a kevlar disc.

 

A Kevlar disc definitely sounds like the way to go. The FX300 is at the top of my list, but I'm also looking at some smaller companies. Does anyone like South Bend or Clutchnet? South Bend uses Exedy hubs. One thing that concerns me is reports of springs popping out on the 4 spring model. The attached picture is possibly an upgrade. Clutchnet's design looks like it solves this problem.

 

kevlar would be the way to go for smooth driving. actually wish i would have done this over the exedy2. wouldn't be giving up much holding capacity for a smoother clutch

 

Comp stage 5 unsprung, drives just fine if you know how to drive a puck, doesnt glaze and holds power beautifully

 

Ive been on an ACT 4 puck unprung for 2 years and still going strong.

it takes some getting used to, but i can shift it smooth as any clutch

 

Ability to drive a 6 puck clutch has nothing to do with it. I've had one in my car for almost 7 years, and I'm sick of it.

 

Exactly. It's not about how you shift it, it's the fact that they don't engage smoothly (more abruptly) which makes them a bit of a pain in the *** when street driving in traffic and stop and go driving. IMHO, any car that is street driven, should use a full face clutch like the Centerforce Dual Friction or Clutch Masters Fx300 type clutches.

 

I dissagree, i dont have any problems with the way my 4 puck clutch engauges. granted its not like driving a stock integra clutch but it certainly isnt a bother. If you want to make alot of power you have to make sacrafices. a little bit of chatter in reverse is something i can deal with to make alot of power. but its al personal preference.

I also would never recomend a centerforce dual crap clutch, they dont hold for anything from my experience. The FX300 or comp kevlar units on the other hand with upgraded pressure plates will hold quite a bit of power on the street just isnt a track clutch

 

I'm about to try one of these, driven a friends car with almost same build spec as mine and it's night and day in terms of pedal weight, engagement is very forgiving.
Requires a perfectly flat and clean flywheel as not to contaminate the Kevlar plate so a grind on a stock flywheel may be required.

Rated at a true 350lbft with only slightly higher release load than OE... So no bent pedals or collapsed cable adjusters!
Not intended to sit in traffic all day long - DESIGNED FOR TRACK use or Fast Road - not the daily commute!
The best you can get without going to a twin plate setup!
Kevlar Full Friction
Complete kit - cover, plate and bearing
WILL NOT DAMAGE OR MARK FLYWHEEL OR PRESSURE PLATE FACES.
COPE WITH HIGHER PERFORMANCE THAN STANDARD
ENGAGES MORE SMOOTHLY
LESS DRIVE TRAIN STRESS
IDEAL FOR ANY RACE OR RALLY APPLICATION
STEEL BACKED FOR HIGHER BURST STRENGTH
DELIVERS HIGHER COEFFICIENTS OF FRICTION AND TORQUE
ELIMINATES DUST NORMALLY CREATED BY STANDARD FACINGS
IDEAL REPLACEMENT FOR CEREMATALLIC TYPE FRICTION MATERIALS

 

^ What brand is that?

 

A 4 or 6 puck clutch simply will not engage as smoothly as a full face style clutch. Rergardless if one person is "bothered" by it or not, there is a definite difference. Puck clutches are designed for "aggressive" engagement and holding power by their very nature. I had one and street drove it and it was "ok" but it wasn't nearly as smooth as a full face. The way I see it, is why even bother considering a puck clutch for anything less than competition use, when there are alternatives that will give just as good performance with much smoother and consistent engagement, longer life, that's easier to live with on the street. I've used the Centerforce DF clutches on my car with 100shot of nitrous and drag racing without issue. When I use to own a performance shop, it was the main clutch I would put in a variety of customer cars without issue.

 

I agree that a full face will have smoother engaugement but it will not hold up to bigger power like a puck clutch plain and simple its just nto designed to unless its a full face carbon clutch. a puck will go 40-50k miles with abuse, i dont see a full face going 4050k with abuse on bigger powered cars especially if there tracked often

 

 

ask tony the tiger how much power he ran thru his 7 or 8 year old abused clutchmaster fx300 full face kevlar clutch. not even with the upgraded HD pressure plate....you won't belive it....but if you check his website you will find dyno videos...

 

You mean that Integra with the GT28RS? I have a video or videos of that car from a long time ago. It looked like a fun street car, but I seem to recall it constantly spinning tire, lol.

 

GT28RS setup was nice...im sure he later upgrated to a gt40 or something allong those lines pushing over 600whp....

 

i had an action 2ks in my car. i loved it. heavy pedal (dual diaphragm pressure plate) but super smooth engagement.