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New Clutch = Huge Power Loss + Noisey

GTAAAH
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GTAAAH Mentor

GTAAAH

Posted
Posted

Yo so i just got a cushioned button exedy or exidy clutch, meant to take 300kw

Anyways car is a stock gtr running 12psi-ish(so like has 200ish)

I can hear heaps of noise now coming from the gearbox, it used to always be dead quiet, whether i'm using clutch or not it's noisey, if i have it in 3rd and just cruising it's loudest (it used to be dead quiet) sounds like it's missing a baffle plate or smtn

+ it's hugely gutless now, it doesn't come onto boost very hard and doesn't increase in power after about 4k, it used to slam u right back till 7k

That last bit makes no sense to me, as the old clutch was slipping ( believe) and this one doesnt seem to be slipping (it'd rev out faster but go slower if it was slipping), revs just seem to take forever

Any suggestions?

GOnna take it back on monday but just wanna know it's not something bad ^^

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jarrod83 Community Regular

jarrod83

Posted
Posted

Hey i have one of those clutches.. mine got pretty loud one day after a lot of launches sounded like alot of sound or something grinding up.. your suppose to run them in gently for 500kms before any harsh driving or high revv drops.. that may account for the noise as for the lack of power something definately sounds amiss.. you should probally try not to drive it until you can take it back on monday incase you damage something ... does it still drive smoothly.. and stuttering? is it still hitting the same boost? maybe the noise could possibly be another problem?

hope u get it sorted

Cheers

Jarrod

GTAAAH Mentor

GTAAAH

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  • Author
Posted

Nah i haven't revved it hard or dropped it, i've taken it to redline twice, he said it'd be fine to rev out just no drops or slam shifts.. the noise was there from when i started it pretty much

It still drives totally fine, and seems ok.. just the sound is hell loud and the power loss is massive up top, got it sitting in garage atm waiting for mondy :<

sucks cos now i cant affrd to go out this weekend and i got no car to drive around haha

jarrod83 Community Regular

jarrod83

Posted
Posted

the only noise my brass button makes is when u try to engage it at to low revvs, it makes a clunking noise other than that its lovely n silent.. definately sounds like they messed something up maybe apart of the clutch hitting on the puks.. im no clutch mechanic tho but it could account for the noise and power loss, they should of test driven it and noticed that, aswell as you should of gotten half way down the street turned around n taken it back

my cars left me broke, many of weekends.. the joys of driving a import lol

GTAAAH Mentor

GTAAAH

Posted
  • Author
Posted

yeh so anyway it was the stupid clutch boot that sits underneath the shifter.. some spud had only put 3 bolts in it so one corner was sitting right up.. i took it for a drive with the mech and he wasnt sure, got it home and figured it out myself

But i still gotta figure out where i lost power, i'm guessing some wiring has been moved/messed up when they dropped the box out.. probably my afm's.. i got shitty luck with em

GTAAAH Mentor

GTAAAH

Posted
  • Author
Posted

It's all smooth still, but the power is gone as well.. i've had this problem before but i cant remember how i fixed it.. i'm thinking some wiring or smtn got bumped when they pulled the box out..it's about as fast as my mates tx3 haha >< doesnt push u back at all, drives fine though, just realll slow.. gonna make a topic in forced induction to get some suggestions, farkn finally get the new clutch and the car ends up slower haha, i cant take it back to put it on the dyno yet either until the clutch has a few hundred k's on it

  • 2 weeks later...

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