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Old 07-21-2000, 11:12 AM   #1
byroll01
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Question Has anyone replaced their clutch w/an aftermarket one?

I now have 70,000 miles on my 97 GT and I think I should start looking into clutch replacement. I put an unorthodox racing clutch in a while back (when the dealer had the tranny out for something else)and had very bad slippage problems with it. It was removed(and I did't get a cent back from them) and the original was put back in. So after my bad luck with that clutch I want to make sure I get something that's going to work this time. I've seen the four puck disks at primative's web site, does anyone know anything about these?
Any help would be appreciated. With at least 3 more autocrosses this year and countless backroads to burn up I'm sure this clutch will be in sorry shape real soon.
thanks
byron
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Old 07-22-2000, 07:11 AM   #2
PeteH
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I have had the Primitive 4-puck in my '92 Turbo Legacy for about 7 months now. Does it slip? ahh, NO! Is it a good street setup? That's up to you, there is no doubt about it, it is a race setup. With practice I can usually get pretty smooth engagement, it is really difficult for me to get smooth launches on uphill intersections, as the paddles come into contact with the flywheel/pressure plate I get a surgeing squeeling (similar to a loose belt but lower pitched) mount-flexing doesn't look like I know what I am doing sort of launch Now, if I use more revs and let the clutch out quicker it won't do it but it will stress the driveline a bit more.

Don't get me wrong, Paul Eklund (owner of Primitive Racing) told me right up front that this is a race piece that 'could' be used on the street if you are willing to put up with the engagement. Paul races his Turbo2.2 Legacy motored Impreza in SCCA ProRally circuit and is a super nice guy to boot!

Having said all that I think Paul now offers the 'ACT' setup which is what all the turbo Impreza guys are using, very civalized engagement with all the holding power and several times more expensive.
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Old 08-23-2002, 10:21 AM   #3
baldcherub
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I'm running the 4 puck clutch with springs in my 98 Impreza L. I've heard varying opinions on this. Some say their tranny blew up in a week. Others say that they're driving it for 20,000 miles with no problem. Well I've been driving it for 20,000 miles no problem. The clutch engagement is not as bad as people say. Takes some getting used to but I can drive it just as good as any other car on the street now. It is noisy though. Very noisy. It squeaks a lot. But I can live with that... but when you want to go... Let me just say I cut so much off my 0-60 it's not even funny. My weak L with intake, exhaust, and that clutch can now do 0-60 in 7.5...
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Old 08-23-2002, 11:03 AM   #4
HIHO
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I would stay stock. Unless you have big hp and a strong tranny it isn't going to help much, if any. I find the stock clutch to grip fine with my stock hp.
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Old 08-23-2002, 11:13 AM   #5
Subietonic
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Definitely agree with HIHO - the stock clutch is more than adequate for stock HP/TQ levels and a bit more. It's relatively modest price and ease of install are definite pluses.

FWIW though - I've replaced the stock clutch system twice now within ~200 miles. Both were replaced under warranty, the first at 51K (it's getting the second as I write this). There seems to have been a production problem with the stock pressure plates causing a choppy engagement and a rattle. Does any one know of any production dates/numbers to be avoided? That would be helpful in avoiding some of th snafu's I'm experiencing with mine right now and those looking to replace stock with stock.

Br, Dale
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Old 08-23-2002, 01:46 PM   #6
baldcherub
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I have to disagree. My stock clutch was crap. Anything above a 4 grand launch and the clutch would slip for a while. Added onto that if you drive autocross the stock clutch won't last long. A grabbier clutch helps tremendously on a launch! Although I don't make a habit of doing this peeling my wheels in first and chirping in second is no problem. And that's with just about 150 hp on an L!!! But you have to be careful not to destroy your tranny. Praying helps... yeah... pray... pray a lot...


just my 2 cents.
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Old 08-23-2002, 03:25 PM   #7
Subietonic
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The one caveat I didn't add was that if you're going to auto-x, rally, hi-rev launch, etc., you'll get a varying degree of engagement satisfaction from each of the clutches discussed in this thread. Several folks are running stock subaru clutches and stock tires and auto-xing with no clutch problems. Those of our colleagues who are running stock clutches and using grippier tires to auto-x are perhaps ending up with slipping clutches sooner in the replacement cycle. I wonder if there's a correlation there? Huh!

Bottom line, is that clutches are a wear-and-tear item for good reason. The more you wear and tear them, the sooner you have to replace them. Then it's just a matter of finding the next clutch/pressure plate combo that will extend the time between failure of the next one and not grenade your drivetrain while giving you reasonable driveability too. Not too much to ask, is it? ... and I'm not sure there is a definitive answer for each individual, just trial and error and word of mouth.

Br, Dale
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Old 08-23-2002, 04:19 PM   #8
baldcherub
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I do agree with Subietonic... but I have to add one point... I hate it when people say "Don't get such and such a clutch because your transmission is gonna be destroyed." Bottom line is clutches don't destroy transmissions, drivers do. It's just easier to destroy a transmission with a very grabby clutch... But if you drive with some intelligence and respect for your car (i.e. go easy on the clutch drops and atleast attempt to ride out the clutch between shifts instead of dumping it) your transmission should last just as long as if you didn't get that brand new racing clutch.

just my two cents...
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Old 08-23-2002, 04:56 PM   #9
Subietonic
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Default Exactly!

Bottom line is clutches don't destroy transmissions, drivers do. It's just easier to destroy a transmission with a very grabby clutch... But if you drive with some intelligence and respect for your car (i.e. go easy on the clutch drops and atleast attempt to ride out the clutch between shifts instead of dumping it) your transmission should last just as long as if you didn't get that brand new racing clutch.

Baldcherub - Couldn't agree more.

Br, Dale
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Old 08-23-2002, 05:12 PM   #10
Patrick Olsen
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I'm currently using a Clutchmasters Stage 1 clutch and it seems fine to me. Pedal effort is slightly heavier than stock, but not nearly as heavy as the ACT setup on a friend's OBS. I couldn't tell you if it's any grippier than the stock setup - it's supposed to be, but I generally don't do any stupidly high RPM drops, so I don't know. I went with the CM clutch back in April because my car had nearly 100k on it, I was significantly upgrading the power (or so I thought) with Cobb stuff, and I was having an aluminum flywheel installed so they were going to be in there anyway.

For a car with stock or near stock horsepower, I, too, vote for a stock clutch. My stock clutch was still working fine at nearly 100k miles with numerous auto-x and open track events on it - lots and lots of high RPM shifting going on. Yes, it would slip big time if I tried to launch over probably 3500 or 4000rpm, but why would I need to do that? Unless you're running ProSolo-style auto-x events a drag launch gains you pretty much nothing. These cars don't have the power to pull them out of the hole with a high RPM launch anyway - the car just bogs right down.

Of course, the other thing to consider is cost. Is it really worth it to spend the extra $$$ for an aftermarket clutch on a stock or nearly stock car? My vote is NO. Hindsight being 20/20, I don't know if I needed to spend the extra cash for the aftermarket clutch on my car, and it's got around 20% more power than stock.

Pat Olsen
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