Installed clutch and it is really just an on and off switch. but thats not my problem my problem is that when I down shift the tranny starts to chatter really bad and the low traction light comes on. its not a real hard drop ill be doing 50 in 5th and just go to third with 3.73 im just doing it to slow the car down for a turn and I noticed that it does it in every gear. if I am agressive with it like coming out of 5th and nailing third hard no chatter but it broiles the tires i just want to know that is this normal cause i dont want to break anything.

 

help

 

did you give it the allowed break in time

 

yes the clutch has 1000 miles on it

 

When I installed mine it did the same thing that you are discribing. After about a half a year of driving it the chattering stopped. The way I combated the problem was by just matching the rpms when I down shifted. Didn't chater then. I think that it is very common with the clutch.

 

Try bleeding the slave clyinder, and see how it goes from there.

 

Whats happening is when you down shift your rear tires are locking up ,causing the low traction light to come on, your clutch to chatter, and im sure your rear end is hop'in as well. I ran the same clutch for a few years. The on off switch either gets better or you get used to it and dont even notice it. If you keep going like you are now, your going to blow your rear end out, like i did. You need to watch what rpms/speeds/gears your using to engine break. If you drove it the same way before the clutch install and this did not happen, your clutch must have been worn enough that it just slipped instead of causing a lot of stress on your drivetrain. With any clutch that isnt shot, and any manual, you can make the same thing happen. Take it from someone who has learened the hard way with the same things your dealing with. Leave the hard engine breaking for the 18 wheelers.

 

Also, give more than 20 minutes before you TTT, HELP, or bump your thread up. There is a sticky stating this from the big guys at the top of the page...

 

you need to rev match when you engine brake. as far as the chattering goes, mine was really bad at 1000 miles, and i thought it would have been broke in by then but it wasnt. I got pissed at it and went out and did a few hard launches and WOT runs with it and got it hot to the point i smelled it. the next day it drove at least 50% smoother.

 

Spec sucks. all thier good for is chatter

 

mine chatter's like a mo fo. I only have 600 miles on it so hopefully it gets better. and yes if you beat on it, for some reason it drives better afterwards. Make sure to match your RPM's when you are engine braking. LIke it was stated before, thats a good way to break that weak 10 bolt.

 

I thought my stage III was well worth the money. It did exactly what i wanted it to. Streetable for a daily driver? depends..I dont drive sports cars as daily drivers... They set in the garage. I had two rear ends worth of hard clutch dropping launches, and lots and lots of burnouts, power shifting, and drag racing with that spec. Its still in the car after i sold it with over 30k on the clutch. I think it served its purpose. I once heard the life expectancy was around 15k. If you want a clutch for a car you drive everyday, get a stock clutch.

Your comment is like saying "all big cams are good for is to surge."

 

thanks alot guys. ill try not to engine brake as much. see i own a landscapeing company and I own 3 duallies with deisels that we have autos but i have added jake brakes so its almost like im used to it or something. I can deal with the issue i just wanted to make sure that i didnt screw up anything on the install. this is my 3rd car with a 6 speed and ive put a clutch in all 3 of them and the other two had centerforces that didnt do this so i was just a little worried. I appreciate all of your guys input haveing this forum sure does make car diagnosis alot easier. I owned a vette for about 8 months and those guys on that forum are not very helpful. most of thier responses to peoples problems are " just take it to the dealer" yeah they wont screw me

 

Once you get to Stage III I think chatter is the nature of the beast. I have a Stage IV and it is "on/off" but I have yet to encounter chatter unless in reverse. I've had a RAM that chattered, but I just needed to relearn my clutch engagement technique and it was fine as a daily.
One thing you can check is to make doubly sure the slave cylinder pushrod is properly seated on the clutch fork lever.
My Spec has about 10K on it now and has not let me down yet. I am getting another one for my 396 build.

 

i had a spec 3 for about 2 yrs. i think i remember a good bit of chatter at the beginning, i know it was for a good bit, but don't know if 500 miles (but then again i drove it 24/7 to brake it in for the next weekend, so may have just seemed) but i loved it. even gripped perfect when did cam/4.10s.

and honestly. i drove my friends stock z the other day, i think the spec3 is a HELL of a lot easier to drive over stock(or am i just weird?)

cory