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Power loss Problem, Please help - maybe clutch
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Old 30 Sep 2007, 09:46 AM   #1 (permalink)
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Unhappy Power loss Problem, Please help - maybe clutch

hi all,

My car is WRX JDM 1994 which has been modified.

if I'm driving and I'm in 1st gear and 2nd gear their is no problem. however when I'm doing around 20mph and i put it into third gear and put my foot down. the car all of a sudden will rev from around 2000 rpm to 5000 rpm but i will feel no power and then all of a sudden i will get instant kick and the revs will hold at 5k for a bit until it goes to 7.5k this problem occurs in 4th and 5th gear as well however i wouldn't red line just in case i may do major damage. i also get a slight clutch burning smell which u can get if u double clutch your car or launch it.

i know it sounds like a clutch slipping problem. but i have replaced the clutch last year in august for an uprated exedy clutch which i brought from alvin (stockcar).

basically i really doubt that the clutch is worn just over a year considering i don't push my car beyond 300bhp which is at 1.0 bar. i haven't double clutched it or done any track days. i just use it to drive to work or just social use. i have checked and replaced all spark plugs and coil packs. i have checked for all error codes and cant find anyone. the only problem i have at the moment which i doubt is related to this is that i blow a fuse for my rear lights every couple of weeks and that about it.

Any help would be appreciated, as i dont really want to go and buy a new clutch to find out it was something else.

Kind Regards

djquest
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Old 30 Sep 2007, 10:17 PM   #2 (permalink)
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tis indeed clutch slip mate, they can last 6 months or 6 years.
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Old 01 Oct 2007, 12:51 AM   #3 (permalink)
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cheers for the reply mate. what do u think of this clutch.

http://www.japanesecarimports.net/pa...fo.asp?id=1381


do u think it should be allot better and last a bit longer. considering that at times i do change my boost settings from 1.0 to 1.35 bar. which does change the power and torque by some bit depending on the weather conditions.

and also would u recommend me getting a lightened fly wheel as well or is it not worth it? reason i ask is if im gonna get the clutch changed i may as well get a lightened flywheel only if it will make a difference.

any thoughts and ideas would be appreiciated

Last edited by djquest; 01 Oct 2007 at 12:55 AM.
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Old 01 Oct 2007, 11:08 AM   #4 (permalink)
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flywheel is yes, but bear in mind there best part off 300 sheets, not sue on the clutch tbh, most people go down the excede or oem route
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Old 01 Oct 2007, 02:20 PM   #5 (permalink)
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the thing is i had an oraganic (uprated) exedy clutch which well im guessing is almost dead only just after a year. i dont really fancing buying the same clutch again or an oem one to find it that dies after 8 months or so.
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Old 01 Oct 2007, 05:13 PM   #6 (permalink)
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o right, strange, if you havn't been driving it hard then can't understand y it would go so soon, unless theres something else wrong
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Old 01 Oct 2007, 07:10 PM   #7 (permalink)
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well im gonna go and get it check by sloyboy-racing who are local to me. they will let me know. i think it is the clutch coz today driving back from work it started to slip in 2nd gear at 3000rpm. i think may just get Exedy organic 230mm clutch driven plate as it is cheaper considering, that would be the first thing wear out. as everything else is like just over a year old. plus the fact it is Exedy organic 230mm clutch which is installed on the car. plus get the current fly wheel skimmed and spigot bearing changed
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Old 01 Oct 2007, 07:12 PM   #8 (permalink)
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got one on mine now and its not having any probs with nearly 340 horses, although its only 5 months old now
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Old 01 Oct 2007, 07:15 PM   #9 (permalink)
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well just be a bit careful if u start to smell your clutch burn allot then i think it may be on its way out coz i do remember it started to smell allot just before it acted like this. i doubt it would be a boost issue or spark plug issue as the car doesnt backfire and the boost guage shows all is fine. im guessing when i ran it at 1.35 bar that prolly killed the clutch a bit quicker at times.
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Old 01 Oct 2007, 07:17 PM   #10 (permalink)
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if your driving normally and your mselling burning clutch then theres more seriouse issues. norm only get burning clutch smell when you launch it hard
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Old 01 Oct 2007, 07:19 PM   #11 (permalink)
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then again i will find out tomorrow for sure. once this is sorted i got some long work ahead of me. as im planning to fully face lift my interior ( full Dash and seats) and then upgrade loads of exterior bits. really want to get my scooby up to scratch if u know what i mean.
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Old 01 Oct 2007, 07:22 PM   #12 (permalink)
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im thinking that when i had the clutch fitted before at my local garage they may have not skimmed the flywheel. coz otherwise the clutch may not wear out so quick. coz an unskimmed flywheel will prolly wear out the clutch very quickly. would u agree?
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Old 01 Oct 2007, 07:23 PM   #13 (permalink)
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not sure tbh, not sure what not doing it causes. shall do some digging
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Old 01 Oct 2007, 07:36 PM   #14 (permalink)
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more often than not, i've found an unskimmed flywheel pruduces clutch judder, it sounds like the clutch might not be releasing fully and this is whats causing it to slip possibly
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Old 01 Oct 2007, 07:44 PM   #15 (permalink)
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cheers buddy. all the info helps.
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