Does anybody make an aftermarket clutch that does not cause vibration, chatter, etc?
I reread all the clutch posts. Whats the issue? The spec clutch? the fidanza flywheel? So many complaints. Did somebody not post the clutches are made for the ecotec cobalt or hhr and the solstice is a little different? Please share your knowledge, experiences and anything you can on the matter. I am stranded and do not want to put a stock clutch back in.
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Hey Mad, I'm using a stage 4 bully clutch. They are some what local for me. I only heard good things about them. So far soo good. It was making a bit of chatter at the start. But it has stop. Also I forgot to say it is a stage 4 clutch. Pedal still feels good. I would change the flywheel at the same time you do the clutch.
Good luck
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madmods - I have the Spec stage 2+ with Fidanza flywheel and have had what is called harmonic vibration since it was installed. It's very noticeable and will drive you nuts. You feel it most letting off at around 3k. I called Spec and was told 'it's normal to have harmonic vibs. with a billet flywheel'. The answer was kind of a 'get used to it' thing.
Randy and Dave at DDM have been driving mine and they feel the vib as well - and don't like it. Randy is planning on installing a Spec stage 2+ in his car but not the Fidanza flywheel. When he gets it installed - if he has no vibration - then the flywheel is the problem and I'll have mine pulled and re-install the stock flywheel.
I even bought a GXP clutch to have 'standing by' to use if I still have a vibration after changing the flywheel out. I don't know if it will fit, but I'll give it a shot before going back to stock or spending the cash for another aftermarket unit.
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Spec stage 2+ clutch & billet flywheel
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madmods... My 2 cents with some gm input... The system came out of a truck which equals beefieness but if you put light flywheelS in you are playing a loosing game because you are outing 1 parts finesse to 3 parts truckiness... Look into a t56 if you are serious (did I say that!)
madmods - I have the Spec stage 2+ with Fidanza flywheel and have had what is called harmonic vibration since it was installed. It's very noticeable and will drive you nuts. You feel it most letting off at around 3k. I called Spec and was told 'it's normal to have harmonic vibs. with a billet flywheel'. The answer was kind of a 'get used to it' thing.
Randy and Dave at DDM have been driving mine and they feel the vib as well - and don't like it. Randy is planning on installing a Spec stage 2+ in his car but not the Fidanza flywheel. When he gets it installed - if he has no vibration - then the flywheel is the problem and I'll have mine pulled and re-install the stock flywheel.
I even bought a GXP clutch to have 'standing by' to use if I still have a vibration after changing the flywheel out. I don't know if it will fit, but I'll give it a shot before going back to stock or spending the cash for another aftermarket unit.
I saw yours today at the shop, recognized it right off, nice, very nice
That get used to it comment by Spec would set me off
You are in good hands at DDM
Harmonics in a flywheel are bad, very bad
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Are we specifically talking about the fidanza flywheel? What about the spec flywheel.
Quote:
Originally Posted by yamatd3
Problem is it's too small.
The clutch? What do you mean. Was it made for another car?
Quote:
Originally Posted by compression
Hey Mad, I'm using a stage 4 bully clutch. They are some what local for me. I only heard good things about them. So far soo good. It was making a bit of chatter at the start. But it has stop. Also I forgot to say it is a stage 4 clutch. Pedal still feels good. I would change the flywheel at the same time you do the clutch.
Good luck
Comp. did you change your flywheel too? Bullys website does not have pricing.
Quote:
Originally Posted by carlintexas
madmods - I have the Spec stage 2+ with Fidanza flywheel and have had what is called harmonic vibration since it was installed. It's very noticeable and will drive you nuts. You feel it most letting off at around 3k. I called Spec and was told 'it's normal to have harmonic vibs. with a billet flywheel'. The answer was kind of a 'get used to it' thing.
Randy and Dave at DDM have been driving mine and they feel the vib as well - and don't like it. Randy is planning on installing a Spec stage 2+ in his car but not the Fidanza flywheel. When he gets it installed - if he has no vibration - then the flywheel is the problem and I'll have mine pulled and re-install the stock flywheel.
I even bought a GXP clutch to have 'standing by' to use if I still have a vibration after changing the flywheel out. I don't know if it will fit, but I'll give it a shot before going back to stock or spending the cash for another aftermarket unit.
Is the vibration all the time? Or only when engaging the clutch? Very curious about what happens.
Could it be the spec clutch? Seems to be in the middle of the problems. I know salty is running a exedy clutch. Anybody using the spec flywheel?
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See madmods in the upcoming Fast & Furious 4.
2009 Colorado Nationals attendee! I will be there and want to
party with everyone. Some of you owe me a beer.
Is the vibration all the time? Or only when engaging the clutch? Very curious about what happens.
Could it be the spec clutch? Seems to be in the middle of the problems. I know salty is running a exedy clutch. Anybody using the spec flywheel?
Yesterday 08:11 PM
Only does it when the clutch is engaged (ie; car in gear, foot off the clutch, coasting down or neutral torque). For example, at around 65mph in 5th gear the car is going around 3k revs and you will get the vib pretty much constantly. It's been a while since I drove it but that's what I recall. I believe the flywheel Spec sells with their system is a Fidanza - that's how I got mine.
I hope someone finds the answer to this issue (Randy, are you listening?)!
__________________ TEAM SOLSTICE 2008
NASSOA(tm) Founding Member #2 1st 1K #781 DDM Custom Turbo System DDM Pro-Beam, A-Pillar Pod, PLX gauges
Starlight red I/C pipes and coil cover
GReddy Profec B Boost Controller, HKS BOV
3" Magnaflow cat-free
Werks radiator / Precision billet grilles
Norms vented fenders / GXP Spoiler
Spec stage 2+ clutch & billet flywheel
Riken Raptor's 255/45/18
Here is my experience with aftermarket clutches......
I started with a SPEC 2+ (with stock flywheel), and the pedal pressure was light comparable to stock, but eventually it started wearing abnormally even though its torque spec. matched my application. Customer support was lacking and in this business that's a suicidal mentality for any vendor. I will never go back to them....enough said.
Now I have an Excedy clutch matched to a Spec pressure plate (Excedy confirmed through Dave that it was OK to do that), and so far no slippage, but the pedal pressure increased a bit above stock, but nothing major.
The only two issues I have with that package:
1/ The heavy chattering during take off, it throws the prop shaft into resonance and clunks like crazy, unless I rev the engine a bit (1500 RPM) along with a somehow aggressive clutch engagement. The clutch material, I am told is a carbon/ceramic mix? which creates a pretty aggressive mu-slip curve, hence the chattering. Also all aftermarket clutches will lose the dual torsional dampener used on the stock unit and once we do that, kiss bye-bye to smooth take off.
2/ After a bit of driving, it seams like the clutch pedal engagement changes on me, to the point that engaging gears becomes a bit difficult, unless I rev the engine a bit to help with synchronization. After talking with Dave, we suspect it could be clutch hose feeding the slave cylinder that start expanding due to a bit heavier pressure plate??? Anyone out there with a heavier pressure plate that is experiencing the same??? If nobody else is, then there is something else going on that cannot be too good.....
If i had it my way, I'll put a T56 6 speed with a custom bell housing to match the Ecotec bolt flange and a biffed up diff from a STS-V or something like that.
There's got to be someone out there that can build a decently matched clutch/gearbox/diff/prop/axles package for our application.....maybe Mallet? how about a group buy discount, anyone else interested ;-)
I saw yours today at the shop, recognized it right off, nice, very nice
