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Old 02-20-2005, 04:01 AM   #1
wrxinmn
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Default why does my car over-rev into redline?

02 WRX, 65k, just checked out okay from 60k maintenance

Weird thing started happening recently. Today, when accelerating (with the intent of going 70mph) the car hit 4th gear and about 3k RPMs and 50-60mph, everything is normal, then all of the sudden the RPMs shot up to redline in around a second. The engine revs/roars but the mph doesn't increase with the same vigor. It shifted up to 5th and everything was fine. This has happened before in 3rd gear too.

Any idea what this would be all about? There isnt any weird noise but once, and only once, I didn't shift up right away (wanted to see if the guage would drop back down or what) and afterwards there was a slight burnt smell.

Could a belt be slipping?
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Old 02-20-2005, 10:04 AM   #2
brett s
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Time for a new clutch...
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Old 02-20-2005, 10:31 AM   #3
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Quote:
Originally Posted by brett s
Time for a new clutch...
ding....ding....ding
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Old 02-20-2005, 10:32 AM   #4
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Quote:
Originally Posted by brett s
Time for a new clutch...
12345
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Old 02-20-2005, 04:21 PM   #5
Mike Wevrick
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bingo!
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Old 02-20-2005, 07:51 PM   #6
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Give that man a cigar! A new clutch too!
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Old 02-21-2005, 12:31 AM   #7
wrxinmn
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Gad dangit.. are you guys serious?

How long will it be before I absolutely have to replace it and how much does that cost? Anything I can do to minimize wear and/or tear? I ask because I'm low on cash for a couple months and this isnt very convenient.

Why at only 65k? I don't drive it hard at all.

Edit: I checked eBay and they had some racing clutches for upwards of $400. They also had a couple in the $200 range, shipped, Act and Exedy were the brands. Would one of those suffice? How much is it to have something like that installed?

Last edited by wrxinmn; 02-21-2005 at 10:10 AM.
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Old 02-21-2005, 02:38 AM   #8
Boxologist
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i have used the force to determine thata new clutch is in ur future. or a lawsuit from getting in a car accident.
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Old 02-21-2005, 06:13 PM   #9
Mike Wevrick
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If it only slips when you really floor it you might be able to stretch it out a bit by driving gently. But it might also go out completely and leave you stranded somewhere.

Have you had the car since new? Clutch wear is caused mostly by things like slipping the clutch while launching at high rpms.

As for specific clutch types, try the tranny forum.
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Old 02-21-2005, 09:31 PM   #10
Tim Sanderson
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Let it go too long and you might as well replace the flywheel too. I just replaced one last week with a nice deep grove in the flywheel made from the rivets in the clutch disk.

While your at it, replace the rear main seal too.
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Old 02-21-2005, 11:37 PM   #11
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Quote:
Originally Posted by Tim Sanderson
Let it go too long and you might as well replace the flywheel too. I just replaced one last week with a nice deep grove in the flywheel made from the rivets in the clutch disk.

While your at it, replace the rear main seal too.
yea my friend with an evo drove his car around on a bad clutch for a while. now he's getting passed up my grandma's when driving normal and he said he messed up his flywheel. he is currently replacing his clutch and probably his flywheel
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Old 02-21-2005, 11:39 PM   #12
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Typically once you start slipping in 3rd as far as I'm concerned you're way post due for a new clutch. I typically will let mine go until I start sliping in 4th gear.
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Old 02-22-2005, 12:01 AM   #13
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im slipping going into 2nd. do you think i could get my dyno tune with that slipping? since they dyno it in 3rd anways? or since in slipping in 2nd maybe it's slipping in 3rd just not noticable
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Old 02-22-2005, 12:22 AM   #14
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Just wait will you get a new clutch. A slip will most likely throw it all off.
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Old 02-22-2005, 12:41 AM   #15
kettsupp
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yea, that's what i was thinking. but when i get the clutch installed won't i have to break it in before i can smash on it? my car is under construction and the next time i'll be driving it will be on the way to the dyno (which is the same place that'll be installing my clutch). i was thinking, right after they install the clutch if they could dyno tune it because im not driving my car around untuned with the setup im having.
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Old 02-22-2005, 01:25 AM   #16
wrxinmn
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I think this is getting exponentially worse as the days have gone on. Like I said, I'm a little short on cash at the moment so I'm trying to be economical here. I talked to a auto place today and they said it'd be about $350 to install a clutch. Reasonable?

I checked eBay and there were some Exedy and Act clutchs for about $200 shipped. Any idea if they'd suffice or does anything under $X generally suck? Any Nasioc vendor suggestions? Low price is the key, not hyper performance, especially when I might be trading the car anyway.
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Old 02-22-2005, 11:10 AM   #17
Mike Wevrick
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Did you search/post on the tranny forum for advice? That's where you will find out whatever you want to know about clutches.
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