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Old 11-07-2008, 02:38 PM   #26
N/A_junkie
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Quote:
Originally Posted by Unabomber View Post
I wish, but CF doesn't like TQ nor do many other clutch manufacturers....it's like they want us to purposely buy the wrong clutch. So to those manufacturers, I say screw them.
i agree...and it's really unfortunent. you would think a company would want you to have the best clutch for your car...then you would become a dedicated customer

i'm probably gonna go ACT...as you and many others seem to have nothing bad to say about them
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Old 12-30-2008, 10:24 PM   #27
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How come you left out clutchmasters?
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Old 12-30-2008, 11:11 PM   #28
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Because clutchmasters like most sucky clutch makers doesn't list their torque ratings.
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Old 01-01-2009, 12:13 AM   #29
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Quote:
Originally Posted by Unabomber View Post
Because clutchmasters like most sucky clutch makers doesn't list their torque ratings.
What is wrong with clutchmasters?

Negative feedback somewhere? I hadn't found any until now. 2 major tuning/performance shops in CT recommended it for awd.

I have read a few of your faq's and you have answered almost all of my questions/ curiousities, perhaps you could with this one too.


Chris
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Old 01-01-2009, 01:21 AM   #30
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He already answered your question
He didn't include them because they don't list torque ratings
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Old 01-01-2009, 09:02 AM   #31
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You buy clutches based on torque rating. Clutchmasters doesn't provide torque ratings. So the one piece of information you need to buy what you need, Clutchmasters doesn't provide. NICE. That's why they suck. It's like Nike just shipping out shoes without any sizes and you having to guess all the time.
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Old 01-01-2009, 12:11 PM   #32
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Quote:
Originally Posted by the suicidal eggroll View Post
He already answered your question
He didn't include them because they don't list torque ratings
No need to be smug, I was looking for a bit more of a justification....some sort of supporting information found by experience.

Manufacturers website actually does list cpacities:

FX100 (Stage I)
· High performance street system
· Holding capacity 70% over stock: Stock 04 wrx 217ft/lbs at the fly *1.7= 368.9 ft/lbs holding capacity
· Heavy-Duty reinforced pressure plate
· Hi-Leverage™ pressure ring design
· Sprung hub/cushioned disc
· Steel backed organic friction material
All Clutch Masters systems come complete with:
  • Pressure Plate
  • Clutch Disc
  • Throw-out Bearing (when applicable)
  • Pilot Bearing or Bushing (when applicable)
  • Alignment Tool
The other stgs 2-5 also list a percentage in holding capacity over stock


And for the record just because I am a noob to this site, doesnt mean I'm new to owning and working on subarus. I expect to be treated like everyone else in this club.

regards
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Old 01-01-2009, 03:35 PM   #33
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Your math is wrong, therefore your clutch choice is wrong. No one on the planet knows the capacity of the stock clutch so you can't do any math without this figure. It's a free country....do what you want, but I strongly recommend doing it right rather than trying to out-think NASIOC just to prove a point.
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Old 01-01-2009, 04:40 PM   #34
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I was assuming stock power output... not the oem clutch capacity, which I have no idea about. Right, then it's not accurate when assuming the first number to be oem clutch capacity.

Anyways, yes I would like to do it right lol... as I have a crappy clutch that I installed last year (almost 2 years now since the new year) and it sucks...slips all the time. I've learned my lesson.

I think a SPEC clutch is looking right for me. Thanks for the faq

regards
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Old 02-24-2009, 02:21 PM   #35
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The fine folks at Competition Clutch answered their email and as a bonus, responded back with information worth a crap, so I added their line.
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Old 02-26-2009, 01:35 PM   #36
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Just got information from several manufacturers. I will be putting all this data into a spreadsheet which will make me everyone's hero, even those people that hate me. Stand by....
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Old 03-03-2009, 11:20 PM   #37
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im making very close to 300wtq with my 06 wrx. I just had a exedy stg1 clutch put on today, did i make the right choice in choosing that stg1 over oem replacement?
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Old 03-04-2009, 11:18 AM   #38
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I can't say yes or no at this point as I'm rethinking and researching this subject. I'm in the midst of talking with clutch makers, NASIOC users, and dyno makers to get this all sorted out.
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Old 03-04-2009, 07:24 PM   #39
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Quote:
Originally Posted by Unabomber View Post
I can't say yes or no at this point as I'm rethinking and researching this subject. I'm in the midst of talking with clutch makers, NASIOC users, and dyno makers to get this all sorted out.
i read through the clutch and flywheel faq and it would have been a bad choice according to that list to buy the oem because its not rated for the amount of tq i have.
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Old 03-05-2009, 01:23 PM   #40
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I'm glad I came across this thread. I'm in need of a 6 spd clutch and was dead set on the clutch masters stage 3. I've owned two of them in the past, used for forced induction Honda applications and I've been very impressed with their performance, plus the clutch pedal effort was less than my stock clutches and engagement was very smooth and soft, never any chatter.

They both withstood every aggressive autocross launch and shift I could throw at them and figured this would be the way to go for my 98 OBS with 6 speed for autocrossing purposes.....

It would be great if clutch masters would cooperate with Unabomber and provide their torque figures.

I'm subscribing.

Adam
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Old 03-23-2009, 10:40 AM   #41
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I have had an act sb5-hdmm with a LWFW package on for about 10k now. It started slipping the other day in 5th just a little. I dynoed at 300 wtq and 340 wtq with meth so im well within my tourqe specs. I never launch it and i slow down in gear till about 1k then downshift. Is that a disc that can be heated back up to resurface from stop and go driving?

Last edited by wsmith30132; 03-23-2009 at 11:00 AM.
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Old 03-24-2009, 11:48 AM   #42
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not to take this to far off but does anyone know the tq spec for an oem flywheel????
thanks
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Old 04-23-2009, 04:22 PM   #43
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Does anyone know the difference between the Exedy 15802 vs the 15802HD Clutch Kits? Is there a difference in torque capacity?
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Old 04-23-2009, 04:27 PM   #44
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Originally Posted by IwantRex View Post
Does anyone know the difference between the Exedy 15802 vs the 15802HD Clutch Kits? Is there a difference in torque capacity?

Nevermind, OAKOS has the answer...

http://www.oakos.com/Merchant2/merch...gory_Code=1206

So 15802HD holds 319, 41 over the non HD.
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Old 06-02-2009, 07:52 PM   #45
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Quote:
Originally Posted by ghk
any good information on Exedy OEM Replacement Clutch Kit. The price is very good only about $200.
Quote:
Originally Posted by IH8PVMNT View Post
thats only the disc, you still need pressure plate, throw out bearing, and pilot bearing.
No that's not accurate. The Exedy KSB03 is the OEM replacement clutch kit, as Exedy makes the OEM clutch. It's exactly what you would purchase at the dealership, just a lot less $$$. It is a full clutch kit and includes pressure plate, disk, throwout bearing, alignment tool. We stock these and they're in the price range ghk mentioned. Yes, we also have the rest of the Exedy line as well as ACT and Competition Clutch (which are very affordable!).

IMHO, the torque ratings the manufacturers claim are low. I've seen WRX's and STI's running the stock clutch for tens of thousands of miles at VERY high power levels. A local STI that may still hold the quickest stock turbo 1/4 mile time (high 11's) has been on the same stock clutch for years, and makes over 400 wheel torque on a conservative dyno. To me, an aftermarket one that increases clamp load by just 30% means you can hold a whole heck of a lot of power. Ones that increase capacity by 80%? You're probably not going to have slipping problems because of too much power

We've found the ACT 6-puck sprung hub clutch to be a GREAT! clutch for WRX and STI owners who are making a whole crapload of power, abuse their clutches (lots of launching, slipping at full throttle, etc), and don't want to spend the kind of money a twin plate runs. This clutch is SHOCKINGLY driveable and engages soooooo much smoother than you might imagine. It'll hold all the power you throw at it, and it's actually less expensive by a few bucks compared to the ACT Street clutch... highly recommended for the high power car, even if it's still a daily driver!


Jeremy

Last edited by Crucial Racing; 06-02-2009 at 07:59 PM.
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Old 09-14-2009, 06:55 AM   #46
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Quote:
Originally Posted by Crucial Racing View Post
We've found the ACT 6-puck sprung hub clutch to be a GREAT! clutch for WRX and STI owners who are making a whole crapload of power, abuse their clutches (lots of launching, slipping at full throttle, etc), and don't want to spend the kind of money a twin plate runs. This clutch is SHOCKINGLY driveable and engages soooooo much smoother than you might imagine. It'll hold all the power you throw at it, and it's actually less expensive by a few bucks compared to the ACT Street clutch... highly recommended for the high power car, even if it's still a daily driver!


Jeremy
Interesting! Would you say that the ACT 6-puck is so good there is no point in choosing the street clutch? I have approx 450hp and 450 TQ at the crank, so I guess I might be in the borderline between these two clutches... The stock 6-speed clutch has started to slip. I do a little bit dragracing, a lot of autocross and some track-days in a daily driver. Some times though, I might be stuck in stop and go traffic getting in and out of the city. Based on your experience with these clutches, which one would you choose?
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Old 09-14-2009, 05:05 PM   #47
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Originally Posted by vids View Post
Interesting! Would you say that the ACT 6-puck is so good there is no point in choosing the street clutch? I have approx 450hp and 450 TQ at the crank, so I guess I might be in the borderline between these two clutches... The stock 6-speed clutch has started to slip. I do a little bit dragracing, a lot of autocross and some track-days in a daily driver. Some times though, I might be stuck in stop and go traffic getting in and out of the city. Based on your experience with these clutches, which one would you choose?
From all of the feedback we have received (and there are certainly reviews on here that you can read), I would absolutely recommend the 6-puck sprung hub (there's also a solid hub, and that's not what you want) for your application. To be 100% open though, I do not have personal experience with it. I've driven plenty of STI's with twin plate clutches (arggh) and most of the organic single plates on the market, but I have not had a chance to personally try out the sprung hub 6-puck. We've heard back from maybe a dozen customers and all were shocked how very driveable it is and how smooth it engages. But, as I haven't tried it out myself, I wouldn't want to say anything *too* certain. I'm sure it has a quicker engagement point (shorter pedal travel between released and engaged) than the organic clutch, so you'll have to be more precise w/ the pedal in stop-and-go traffic and whatnot, but apparently it is NOT a lightswitch and can actually be slipped without difficulty for smooth daily driving style takeoffs.

We typically do stock these.

Jeremy
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Old 09-14-2009, 06:48 PM   #48
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Thanks, good info! I have tried something similar I think, it was drivable but always slightly frustrating But some compromise is a given at this power-level and this kind of use.
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Old 09-16-2009, 04:58 PM   #49
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Quote:
Originally Posted by Unabomber View Post
You buy clutches based on torque rating. Clutchmasters doesn't provide torque ratings. So the one piece of information you need to buy what you need, Clutchmasters doesn't provide. NICE. That's why they suck. It's like Nike just shipping out shoes without any sizes and you having to guess all the time.
Clutch Masters does not list torque ratings at this time, however, Clutch Masters is updating their catalog and will have all the torque ratings available soon. BUT! here are a few listings for Clutch Masters torque ratings for Subarus.

Subaru WRX 2002- 2005 2.0L Eng

PART # trq rating

15-016-HD00 ...420 lbs
15-016-HDTZ ...495 lbs
15-016-HDCB6 ...575 lbs
15-016-HDCB4 ...575 lbs
15-016-HDB4 ...575 lbs
15-016-HDB6 ...575 lbs
15-016-B-TD6 ...950+ lbs (8.5" Twin Disc)


Subaru WRX 2002- 2005 2.0L Eng 2.0L 242mm Upgrade Kit w/Flywheel

PART # trq rating

15-106-HD00-SF ...525 lbs
15-106-HDTZ-SF ...595 lbs
15-106-HDCB4-SF ...655 lbs
15-106-HDCB6-SF ...655 lbs
15-106-HDB4-SF ...655 lbs
15-106-HDB6-SF ...655 lbs



Subaru WRX STI 2004 - 2009 2.5L


PART # trq rating

15-017-HD00 ... 525 lbs
15-017-HDTZ ...595 lbs
15-017-HDCB4 ...655 lbs
15-017-HDCB6 ...655 lbs
15-017-HDB4 ...655 lbs
15-017-HDB6 ...655 lbs
15-017-B-TD7 ..950+ lbs (8.5" Twin Disc)


Subaru WRX 2006- 2008 2.5L Eng

PART # trq rating

15-021-HD00 ...410 lbs
15-021-HDTZ ...475 lbs
15-021-HDCB4 ...545 lbs
15-021-HDCB6 ...545 lbs
15-021-HDB4 ...545 lbs
15-021-HDB6 ...545 lbs

here is a pic of the Twin Disc

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Old 09-17-2009, 02:33 AM   #50
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would an Exedy 15804 (287) be too much for my stock 5MT in my 09 to handle ? my stock clutch SUCKS and i want something thats better that can handle a stage 1 or 2 tune. but wont make my tranny go byebye

what is the rating for the stock clutch ? has to be around 230 or 240 right?

Last edited by WRrexu; 09-17-2009 at 11:23 AM.
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