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Old 11-30-2005, 05:10 PM   #1
Balantz
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Unhappy Help! Clutch issues on a 285hp 2003 WRX

So I haven't yet figured out how best to launch my car, and I'm worried I may have damaged the clutch, having smoked it twice now . It seems to stutter a bit now, not consistently, but sometimes. Should I be worried? Should I upgrade? Replace? Help! I'm a new owner and a new member - educate me! Thanks, all!
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Old 11-30-2005, 05:27 PM   #2
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mmm, Well, launching an upgraded WRX is usually bad for the transmission. These clutches usually stutter but you could have fried the clutch. If its the stock clutch, organic clutches usually return to useable after awhile even after cooking them.

You didn't give alot of information, but if the clutch is slipping exessively on launch. Thats probably a good indication that you need to upgrade.
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Old 12-02-2005, 01:51 AM   #3
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If I upgrade the clutch, do I need to upgrade anything else along with it? And how much am I looking at, approximately, for parts and installation? Thanks!
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Old 12-02-2005, 07:42 AM   #4
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your looking at about $800 and you should get the flywheel resurfaced. I smoked my stock clutch many times and it held pretty good untill i made over 25 passes at the track in one day . if you get a new cluch i would stay with stock
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Old 12-02-2005, 08:01 AM   #5
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I would recommend getting a better clutch. Get an RPS or ACT clutch but get your stock flywheel resurfaced. This is the best street/strip combo you cna go with and not have issues with drivability or CEL's in my opinion...
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Old 12-02-2005, 09:15 AM   #6
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why a better clutch he is only putting 230ish at the wheels?
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Old 12-02-2005, 12:14 PM   #7
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Is that 285 hp or Whp??? If it is only 230 Whp I agree, stocker is fine..
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Old 12-02-2005, 12:24 PM   #8
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I use the stock clutch and tranny and I am putting down 356whp/362tq. I have about 25 passes with 1.7x 60's. I personally will not upgrade my clutch until I upgrade the tranny.

Maybe if I had the newer '03 transmissions I might consider getting a better clutch. You should check to see what version you have before deciding.
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Old 12-02-2005, 12:31 PM   #9
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Quote:
Originally Posted by 2fas4u
Is that 285 hp or Whp??? If it is only 230 Whp I agree, stocker is fine..
either way he is fine unless he has money for a trans. Unless you drag race alot the stock clutch will hold up fine
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Old 12-02-2005, 01:08 PM   #10
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Thanks much, all of you. I guess I should be fine with the stock clutch for a while, but I'll consider upgrading to an ACT plus the flywheel resurfacing. LiquidForce: You're insane!!! What kind of HP are you putting out at the flywheel? 425? Is it even driveable on a daily basis? Fun, though, good lord... My car is fast as hell and it's only at 285.
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Old 12-04-2005, 02:28 AM   #11
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Quote:
Originally Posted by 2fas4u
Is that 285 hp or Whp??? If it is only 230 Whp I agree, stocker is fine..
285 is the approximate flywheel hp, based on Cobb and Perrin's assumptions of the products I have (intake elbow, up/down pipes, cat-back, b/o valve, Cobb AP).
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Old 12-05-2005, 02:52 AM   #12
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Quote:
Originally Posted by Balantz
285 is the approximate flywheel hp, based on Cobb and Perrin's assumptions of the products I have (intake elbow, up/down pipes, cat-back, b/o valve, Cobb AP).
you don't need a new clutch until you are making at least 285 at the wheels.

come back when you are making real power.
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Old 12-05-2005, 08:58 PM   #13
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Quote:
Originally Posted by Milin
you don't need a new clutch until you are making at least 285 at the wheels.

come back when you are making real power.
Now that's just not nice... Be patient with us poor people! We gotta do one little itty-bitty thing at a time to our cars, and save our pennies to even do that! Next comes turbo-inlet pipe, VF34 turbo, STi intercooler, Walbro pump, ACT clutch/resurfaced flywheel, and - somewhere in the middle of it all - stainless steel brake lines. On my income that will take about a year - at least...lol... Patience is a virtue, right?
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Old 12-06-2005, 11:03 AM   #14
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Stick with a factory clutch. Putting in something that has a more abrupt engagement increases the shock to your driveline.(Read: can kill your tranny faster). I agree with Milin, yer not making enough power yet, and if/when you do, I say stick an STi 6-spd in there....
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Old 12-06-2005, 02:37 PM   #15
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This thread is good info for me too. I put about 235 to the wheels, and I f-ing roasted my clutch. I have the same problems with the studdering in 1st. Plus, off a launch, when I hit 2nd, my clutch can't grab my flywheel. I'm upgrading both in the spring. Looks like my tranny is the next to go
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Old 12-09-2005, 03:13 AM   #16
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Bummer, karl750 - good luck with all that. I finally found that it wasn't my clutch, I believe it was actually my ecu adapting. I have the Cobb AP stage 2, and it seems to have finally settled into a rhythm with my driving. So no clutch worries - yet.

Acostafan - you mentioned sticking a 6spd tranny from an STI in my car after a power upgrade. What's a ballpark cost quote for a full transmission with installation? And would that include the three differentials on an STI?
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Old 12-09-2005, 05:41 AM   #17
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you're looking at upwards of $7K if not more depending on new or used stuff.
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Old 12-09-2005, 08:38 AM   #18
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Quote:
Originally Posted by jam69007
you're looking at upwards of $7K if not more depending on new or used stuff.

Yep, 6-7K is what I was going to say.
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Old 12-09-2005, 04:03 PM   #19
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Quote:
Originally Posted by Balantz
So I haven't yet figured out how best to launch my car, and I'm worried I may have damaged the clutch, having smoked it twice now . It seems to stutter a bit now, not consistently, but sometimes. Should I be worried? Should I upgrade? Replace? Help! I'm a new owner and a new member - educate me! Thanks, all!
If you're roasting your clutch with 285chp you're gonna be needing a new tranny anyway.
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Old 12-09-2005, 05:05 PM   #20
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Think about it this way, if you're roasting your clutch, your tranny is not taking the majority of the force from a crappy launch. Unless you need it, I suggest you put your ideas of upgrading to a grippy clutch on hold. The reason is at that point, with all the hp, you'll also be waiting for the tranny to go instead of at this point when the gears aren't as likely to explode.
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Old 12-19-2005, 02:59 AM   #21
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Quote:
Originally Posted by Acostafan
Stick with a factory clutch. Putting in something that has a more abrupt engagement increases the shock to your driveline.(Read: can kill your tranny faster). I agree with Milin, yer not making enough power yet, and if/when you do, I say stick an STi 6-spd in there....
280 at the wheels. my exedy let go at the strip tonight. my times kept getting slower (my 330's) but my mph stayed at a consistant 102-103.

my 60 ft's were a perfect and safe 1.91 or 1.889 ish.

the exedy and flywheel have been a noisy nightmare. I'm throwing the stock ones back in there. I just don't like driving the car with the light flywheel. Doesn't feel like a wrx anymore.
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Old 12-22-2005, 10:37 PM   #22
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Quote:
Originally Posted by Milin
the exedy and flywheel have been a noisy nightmare. I'm throwing the stock ones back in there. I just don't like driving the car with the light flywheel. Doesn't feel like a wrx anymore.
What dont you like about it aside from the noise?

Im in need of replacing my slipping clutch and am completely undecided about replacing every thing with oem (I like the way it feels)

OR

going stock clutch with a light flwheel (for faster revs) I dont want a clutch with more clamping force.
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Old 12-23-2005, 03:46 PM   #23
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I'm on the same boat as you guys, putting down 352whp and 365+tq and my clutch is letting go DISGUSTINGLY! I'm on the highway one day driving normal cruising in 5th, I hit the gas to pass a car up, and my revs shoot up to 6k from 3k i was like WHOAAA LIL PIGGY!

I'm thinking of getting the stock clutch+fly (EXEDY I believe, right?) or getting something with a little bit more clamping force, but still organic and wont shear the crap outta my gears.

My times at the track have gone to the crapper as well.. I used to run 12.7's all day at 110mph with all 1.7x 60' and now I'm stuck at 12.9's all day with 1.7's and same 110mph. I need this clutch bad, even driving normally on the street my clutch sliips and my rpm's shoot up. + now I'm getting some more go-fast mods so I have no choice.

-alan
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Old 12-24-2005, 10:51 PM   #24
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Quote:
Originally Posted by XS_WRX
I'm on the same boat as you guys, putting down 352whp and 365+tq and my clutch is letting go DISGUSTINGLY! I'm on the highway one day driving normal cruising in 5th, I hit the gas to pass a car up, and my revs shoot up to 6k from 3k i was like WHOAAA LIL PIGGY!

I'm thinking of getting the stock clutch+fly (EXEDY I believe, right?) or getting something with a little bit more clamping force, but still organic and wont shear the crap outta my gears.

My times at the track have gone to the crapper as well.. I used to run 12.7's all day at 110mph with all 1.7x 60' and now I'm stuck at 12.9's all day with 1.7's and same 110mph. I need this clutch bad, even driving normally on the street my clutch sliips and my rpm's shoot up. + now I'm getting some more go-fast mods so I have no choice.

-alan
Are you also considering a tranny / rear-diff mod?
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Old 12-25-2005, 08:00 AM   #25
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Quote:
Originally Posted by XS_WRX
.... i was like WHOAAA LIL PIGGY!
-alan
........ actually, FAT PIGGY!
(thats what we GC8 guys call your cars)
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