Hey, I'm looking at the fx 300 and the act xtss, I was leaning towards the act but I have had a couple respected sponsors recommend the fx 300 over the act. I like that its carbon kevlar, but does anyone actually have experience with the clutch or have any sugestions. It's a 400 HP daily driver. Thanks.

 

I was in the same boat as you, so I made a few phone calls and finally decided on the fx300.
I have not installed it yet, but I have heard good things like long life, OEM pedal feel, and quiet actuation.

You can't go wrong with either.

I do know that MAP has the fx on sale for around 610 to your door.

I personally would run a OEM clutch release bearing no matter which kit you go with.

 

Adam at MAP said the fx300 is pretty much the same as the comp stage 3. Similar pressure plate force and friction material. I wrote up my review for the comp stage 3 if it helps, but IIRC Adam has recommended using something more stout for 400hp daily.

My comp just died so I'm waiting for ACT HDSS to show up and give that a shot.

 

330whp DD for over 40k miles. AutoX, HPDE, fun laps etc. Never launched it but loved the fx300 with the fidanza LW flywheel. light pedal, smooth engagement, holds power (323 tq since thats what clutches are rated for) with plans to go for high threes soon. so far no complaints and would buy again.

great clutch for people who dont have the coin for an exedy or similar. Adam at MAP is the man, and thats a good price. I got it cheap but not sure if the shop is a vendor so i wont go into that. and by cheaper i mean like 30-40 bucks so nothing significant. gl with your choice

 

I have about 15K miles on my FX300.

My current setup is making 350TQ and holds like a champ, but if it gets hot (launch) it will start to slip.

At 400TQ I would start looking for something a little more aggressive, twin disc or puck single.

As for feel, the pedal is about 20% stiffer than stock, disgagement is about 20% less than stock (how far you have to press pedal for the clutch to disengage). When it was new, I felt it was too much, but after a couple thousand miles it really calmed down.

If I was staying with my current setup, I would stick with this clutch. Never once have I had it lockout at high RPMs.

Adam is awesome, he knows what his talking about.

 

So It's beyond time that I replace my clutch in my evo and I have been looking at the Clutchmasters FX series. I had a Clutchmasters Stage 3 kevlar clutch in a VW and liked it a lot...

When I looked at the specs, the FX200 and 300 were the two I had narrowed down to buy..My car is an 05 stock turbo with all your basics bolt-ons making 330ish whp. It's a street car, and it used to moonlight as a street mod autox car. Now it's a drive to work and might see one autox a year car. I'm looking for something with a close to stock pedal feel.

I actually emailed Clutchmasters and basically they said the FX200/300 aren't suitable for autocross/road racing (road racing I wont be doing) and recommended the FX100 or FX400.....I was hoping to take advantage of their claimed extended life from the kevlar surfaced 200/300 models.......Thoughts?

-Gabe

 

I have autox/rr about 10 times with the FX300.

As long as you don't launch or abuse the clutch it will be good until you start making real power.

I plan on building more power later, but for now she is holding up very well. I would say right now its the perfect clutch for the power I'm making 350/350. Now if I was making closer to 400tq I think I would need something a little more aggressive.

I would stay away from the FX400 because pucks are hard to modulate as a DD.

 

same here
im still abusing my stock pressure plate with 6 puck disk.
surprisingly its still holding

 

i already shared my experience so i wont go any further but the above posters all make good points.

puck clutches hold great but there on/off switches. drag racing, awesome. DD, not so much. i have friends that do DD it and they say its fine, but for me i never liked them for that bc u have to slip it to engage and that causes it to wear much faster. just werent designed for DD

 

+1

 

Am I really the only one that has had lockout issues with the CM? For the first like 4000 miles I couldn't shift past 7k. This was with the MAP flywheel, but I don't know if that has anything to do with it. It has all but worked itself out by now, but I was pretty pissed off for those 4k miles. At the same time, I also had problems shifting into 5th gear (5 speed) at any speed above 40 mph... it would grind every time. That has gotten somewhat better, but above like 50 mph I still have to slowly ease the shifter into 5th.

I also don't like the way it engages, but that's my personal opinion. I had to adjust the pedal until I was almost out of travel to stop it from slipping. So now I have to let the pedal pretty far out to pull out. It seems like it is less progressive in its engagement compared to stock... like it's either in or out, with little engagement in between. It's a lot of fun trying to pull out at a bumpy intersection.

On the other hand, it was "cheap" and it's holding my 390/330 mustang dyno numbers for the time being. If I could do it again, I would have spent the money on a puck clutch (since my car now sucks pulling out anyway), or maybe the Exedy twin.