SoCal01z28

iTrader: (11)

so i've had the spec 3+ laying around in the box for minute and the slave just went out on me last week so i decided to go ahead and install the clutch. well right off the bat the clutch was chattering like CRAZY, i mean i could see the front end of the car shuttering up and down a couple inches, and what sounded like the shifter hitting either side of the tunnel. so, not wanting to drop the trans again i hoped by some miracle that breaking it in would lessen the chatter, it was still drivable, if i stalled above 1500 rpms there would be much less chatter. well tonight i noticed a heavy engine vibration in neutral at about 1200 rpms and up, so at 150 miles on it i decided to pull the trans because i knew either the assembly wasn't balanced, and/or the flywheel was machined wrong(which i read about in another thread). so flywheel is out and it appears to indeed machined crooked, there's more wear marks on one side than the other. im taking it to the machine shop first thing in the morning, and ill know more then, but damn.....

Phillymu

iTrader: (3)

I dont get it... What is wrong with the clutch??

or was it a SPEC Flywheel that was the problem

Ericbigmac83

iTrader: (19)

I got my spec 3 in the box at home but im putting off installing it cause im afraid of that same thing, lol

wolfy

iTrader: (1)

sorry, not trying to hijack...

3 or 3+ ? id hold off even longer...my stage 3 has probably 4k or more on it now, and it STILL chatters a bit. ill never deal with spec again. and theyre customer service wasnt as good as i had hoped...if youd like more info, you can pm me.

-cam

SoCal01z28

iTrader: (11)

it seems so far that the flywheel was the problem. the machinist couldn't believe there was less that 150 miles on it, there were grooves and hot spots all over it.

kookamunga

guess it was accurately machined crooked to .001" lol

sorry, I hope your machinest can fix the problem.

SuperZ

iTrader: (2)

all high performance clutches that are a single disk will have some chatter.It also depends on the driver.Get used to it and you shoudl be able to slip the clutch out low or high RPM without a lot of chatter.You have to be alot slower coming off the clutch.I had mine for about 20k miles with a nitrous setup and 650hp turbo setup and it never slipped.I took it out due to tranny sway to auto.Maybe I just got one of the good ones.I had a regular stage3

SoCal01z28

iTrader: (11)

obviously some chatter is expected, and i can live with that. it was the very noticable engine vibration( in neutral, clutch in or out) that i could feel in the floorboards that motivated me to tear it back down. part of the pressure plate had significantly less wear than the other half, which lead me to believe i had problems.

Ericbigmac83

iTrader: (19)

They really do vary between them, some get lucky, some get **** upon....im hoping that i got a good one when my clutch does go. I really dont feel like throwing the money at another new clutch.

Cyborg

iTrader: (8)

Before you come on here talking so much **** with your 24 posts, why don't you call Spec and talk to them about your situation, rather than start involving 3rd parties(your machinist) ? If you don't even do the due diligence of calling Spec about your issue, you have absolutely no right to come on here bitching and then go right to a 3rd party to pile on to your irrational reaction.

Cyborg

iTrader: (8)

Why? Because your stage 3 still chatters a bit with 4K on it ...Sorry to break it to you, but you have either picked the wrong hobby (high-performance modified cars) or you need to purchase a GM clutch if you want there to be absolutely no evidence of a high-performance aftermarket clutch in there.

That has not been my personal experience with them, or of the other 20 or so LSX cars around me that all have been running Specs for several years, and yes have gone through clutches and talked to Spec and gotten reasonable rebuilds and excellent service

SoCal01z28

iTrader: (11)

believe me that would have been the first thing i would have done if i would have had the receipt. i got the clutch kit new in the box with the car, so i felt i had no warrant to call them without proof of purchase. I just picked the assembly up from the balance shop and the pressure plate was 52 grams out of balance, and the flywheel was over 10. I'd consider it a rational reaction with how my car behaved with a $800+ setup.

SoCal01z28

iTrader: (11)

this is also my daily driver, i need to get it back on the road soon as possible, besides no receipt,thats why i took it to a 3rd party instead of calling spec.

greysteel_M6

iTrader: (5)

So is that the flywheel came crooked new from Spec or is that the machinest who resurfaced the flywheel screwed up.

kookamunga

don't sweat it dude

keep us posted on what your machinest sez

02SOMWS6

iTrader: (6)

My Spec 3I is working great and has been working great for the last 3 years. I have my stock flywheel and the clutch was broken in at the track. From the lift to the trailer to the track. No issues so far but I know my clutch isn't gonna last forever cause it's a track only car that see's nothing but 6800rpm clutch dumps and power shifting at 7000rpm but now now it is still going strong and when it goes I WILL BUY ANOTHER SPEC

Tom01ss

iTrader: (28)

All you guys still try spec and it seems a hit or miss with them.Should've gone with good one to begin with.Did you call all the majors and ask for there recommendations.Just don't talk to there secretaries,ask for tech.Then you make you're decission.I personnally tried McLeod single disc.Can't be happier.When I call mcleod tech I got red roberts-the former owner/designer.I told him what I have and what is planned.Great man to deal with.But remember this was after like 4 hrs on the phone.Do the research then check the threads.

kookamunga

I got one from a guy who sold his car and didn't install it. the price was good and it seemed like a good idea this summer. little did I know I was gonna end up doing a clutch job for a bad slave cylinder 7 months later. so far so good feels great so far. as and autocrosser I understand the stresses are nowhere near as harsh as the drag guys with thier 6000+ rpm launches so hopefully things will last much longer.

oange ss

iTrader: (50)

i bought a stage 2 several years ago, after the install i had a bad vibration around 1500 rpms, in nuetral or in gear..i called Spec and told them the situation,they basically said i was stupid and that a clutch wouldnt cause that kind of problem....i pulled the 50 mile clutch assy out, cut into little pieces with a torch and mailed it back to them....in a nutshell it can happen, get off his back....

JRracing

iTrader: (35)

I put a spec 3 in 2 years ago and it took about 1K miles to break in. It chattered pretty bad at first. Then settled down.
I broke the tranny and had to pull it after 4K miles and it looked totally done. Major hot spots and very close to the rivets.

So I put a oz700 in with new tranny rebuild. And now after another 5K miles the slave is smoked and the clutch looks pretty bad again. But it was very smooth when I put it in. And it gripped like a ****.
I think it needs turned, a new friction disc and balanced again. It's out, might as well do it now rather than in the middle of summer!!