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Old 10-11-2004, 07:59 PM   #1
GC8drifter86
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Join Date: Mar 2004
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2003 WRX/LS430
slammered

Default Aftermarket RS clutch

ACT or Exedy?
I've heard good and bad from both. Exedy is supposed to shudder, but its the OEM subaru clutch maker and work great.
ACT is a stronger clutch that takes more getting used to.

This will be on my daily driver (99 RS) and i drive my car pretty hard when i want to and constantly when i want to lol.

I also wanna try taking my car to a drift night in englishtown in the spring just to have fun and burn up my winter tires or at least try
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Old 10-11-2004, 08:14 PM   #2
Nicklbrso
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00 GC6
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exedy
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Old 10-11-2004, 08:47 PM   #3
senomar
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my exedy shudders like a MF, and is already starting to slip (w/ only 240whp).... looking into the ACT
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Old 10-12-2004, 09:28 AM   #4
bigdweeb
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I just did the Exedy Sport (Exedy P/N: EXE15801) on my car and it solved my shudder problems. I am using the stock flywheel. I haven't had any sub 40 degree days to deal with yet, but so far so good.
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Old 10-12-2004, 09:48 AM   #5
Pat L.I.
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Im happy with my exedy sport clutch. It will shudder once in a blue moon directly related to my driving style. Not really even worth mentioning. The clutch grabs noticably harder than stock, and is a little stiffer. It engages just like the stock clutch on my 02 rs. I only have to push it in a matter of inches. no dropping the clutch to the floor ever.

my stock clutch was shuddering bad when i replaced it.
throw in an exedy LW flywheel at the same time!
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Old 10-12-2004, 01:24 PM   #6
FuJi K
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my exedy only shudders when cold. It's on my MY99 L. I like it! Exedy sport clutch kit on stock flywheel...
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Old 10-12-2004, 01:31 PM   #7
Matt Monson
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'73 914 and 2012 BRZ

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I have had both Exedy and ACT clutches over the years on various cars. I have the ACT in my RS right now and love it. It has never shuddered like my stocker did, and I didn't take very long to get used to it. But a friend who owns an STi recently drove it and he remarked how damn much pressure it takes to depress. I guess I just have strong quads as I dont' notice it at all anymore...
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Old 10-12-2004, 02:30 PM   #8
Siper2
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I've got the Exedy Sport. It felt stiffer for the first day or two, but afterwards felt exactly like the OE clutch, insofar as clutch effort. It does grab with more authority, I'd say, but it does still shudder at times. I think it's just the nature of the car, sometimes. Most of the time I'm sure it's me screwing up.

Stock flywheel. I kept it for two reasons: didn't want to spend the money on a new one, and wanted to keep the around-town driveability.

=S2=
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Old 10-12-2004, 03:36 PM   #9
GQ
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I have had an ACT Clutch and Exedy Flywheel for about 30,000 miles and had absolutely no shudder.
The clutch and flywheel are very streetable/easy to drive.
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Old 10-12-2004, 05:10 PM   #10
GC8drifter86
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So does everyone agree on Exedy clutch and flywheel? Will i notice any gains with the lightweight flywheel. or is the ACT better?
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Old 10-12-2004, 07:59 PM   #11
powerlabs
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I run an exedy clutch and a 13 pound flywheel. It grabs hard and shudder sometimes when its really cold (40F and lower) but overall i am very pleased with the combo. The flywheel is an awesome mod for an autox car.
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Old 10-12-2004, 09:21 PM   #12
GC8drifter86
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thanks powerlabs. What mods do u have to you MY99? i was planning on getting the new cobb cold air intake, equal length headers and high flow cat and cat back exhaust and leaving it like that w/ the exedy clutch and flywheel
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Old 10-12-2004, 10:08 PM   #13
obuerkle
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I have an exedy clutch and an ACT 14 lb flywheel. The clutch is great and has shuddered only once or twice in about 15000 Km since I put it in. The flywheel is great, I didn't notice any difference in acceleration but it makes shifting much smoother and easier. I have a 2.2 liter though.
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Old 10-12-2004, 10:27 PM   #14
jjelsma
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I'm running a Bulley Stage 2 with a kevlar friction plate on a lightened stock flywheel (4lbs lighter). I've had it for about 20,000km

The pedal feels lighter than stock. No slippage under hard excelleration. It shudders once in a while but think it more driver than the clutch. I notice a little quicker reving with the slightly lighter flywheel.

Just my 2 cents
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Old 10-12-2004, 11:47 PM   #15
powerlabs
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Quote:
thanks powerlabs. What mods do u have to you MY99? i was planning on getting the new cobb cold air intake, equal length headers and high flow cat and cat back exhaust and leaving it like that w/ the exedy clutch and flywheel
I have:
Intake: Injen CAI
Exhaust: Borla Headers, Borla Catback, Random Tech high flow cat converter, Magnaflow SS resonator, polyurethane hangers.
Transmission: Exedy clutch, ACT lightened flywheel, Unorthodox Racing under drive pulley, short throw shifter, polyurethane shifter bushing, STI tranny mount, stainless steel clutch line, momo shifter.
Brakes: Brembo x-drilled rotors, kevlar pads, SS lines, Sparco pedals
Apexi S-AFC air fuel controller.
Handling: 17 x 7 Kazera KZ-V wheels, Kuhmo Ecsta MX tires, 20mm rear sway, front strut bar.

That's all I can remember. A couple more cosmetic stuff but that's irrelevant. You can check out my car page if you'd like.

Right now I feel the need for STI engine mounts; the lighter flywheel and the exedy clutch make the car jerky at low speeds if you are not perfectly smooth with the clutch. I also want to upgrade my suspension/springs to get the car to be more competitive at autoxes. Powerwise, I plan on doing cams / valve springs/retainers and then very hopefully if it is available by then, reflashing my ECU to make more effective use of the cam by rising the redline to perhaps 6800 / 6900RPM.
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Old 10-13-2004, 03:54 PM   #16
GC8drifter86
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reflashing is available by i-speed i believe. Have you heard anything about the MY99 cobb CAI? do u think itll be better than the Injen?
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Old 10-13-2004, 04:07 PM   #17
LetItSnow
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I've got an Exedy clutch and ACT flywheel. No sense of judder/shudder/chudder, even when it gets chilly. I like!
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Old 10-13-2004, 05:39 PM   #18
Stime187
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ACT. Tried a clutchmaster, thought it sucked. Drove an Exedy equipped, wasn't feelin it...
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Old 10-13-2004, 05:41 PM   #19
powerlabs
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I-speed has been working on a reflash for a while, but it won't be out for a while too. COBB has been working on one for what? 4 years now? No signs of it comming out either.
Yoshio with Japanese Automotive in Toronto has had a reflash for a while now, but some people reported bad experiences with him. I just might end up using his services though if nothing else is available by the time my subie is cammed...
I heard great things about the COBB intake, but I'm very happy with my Injen, so I'll stick to it. Its cheaper too
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