steering wheel shaking
Thread Starter
Racer
Joined: Jan 2007
Posts: 398
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From: forney texas 725rwhp/768rwtq
steering wheel shaking
just got through doing z06 front and rear widebody conversion and putting ccw wheels on at the same time.now i noticed a shaking of the steering wheel at about 70 mph to about 80 mph.i wouldnt think that it would not be the wheels and tires because everything is brand new and ccw roadforced balanced them before shipping them to me.i did lower the rear and have it on blocks in the garage for a long time. its also got an APS turbo kit on it so it has more weight on the front.do you think i needs an alignment?its got 18x10 ccw wheels with ps2 stock 275 z06 tires on the front.thanks for any advise. shaun
Le Mans Master
Joined: Nov 2007
Posts: 6,419
Likes: 200
From: Wilkes-Barre Pa
I'd recheck the balance. Make sure you didn't lose a weight. Inspect for shipping damage.
Had a similar issue with my dd. I took it to the shop where my brother works and he balanced the tires. Problem solved.
Had a similar issue with my dd. I took it to the shop where my brother works and he balanced the tires. Problem solved.
Last edited by MARSC6; Apr 10, 2008 at 01:47 AM.
Thread Starter
Racer
Joined: Jan 2007
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From: forney texas 725rwhp/768rwtq
Safety Car
Joined: Jun 1999
Posts: 3,570
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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
just got through doing z06 front and rear widebody conversion and putting ccw wheels on at the same time.now i noticed a shaking of the steering wheel at about 70 mph to about 80 mph.i wouldnt think that it would not be the wheels and tires because everything is brand new and ccw roadforced balanced them before shipping them to me.i did lower the rear and have it on blocks in the garage for a long time. its also got an APS turbo kit on it so it has more weight on the front.do you think i needs an alignment?its got 18x10 ccw wheels with ps2 stock 275 z06 tires on the front.thanks for any advise. shaun
Try jacking the front end up and spinning the front tires while putting a dial indicator against various parts of the rotating rim. Per the Helm's book, the run-out should be no more than .030 inch.
Incorrectly mounted could be caused by completely torquing down one lug nut before starting the other ones. An out of round rim could be caused during mounting the tires or hitting a pot hole/curb or during the manufacturing process. Using a dial indicator on the rime while spinning the wheel will tell you if a wheel has a problem. I have seen a few bent after market rims from driving on normal roads, so these are not as strong as you would believe.
Instructor
Joined: Nov 2006
Posts: 221
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One other thing to check - if the wheels are not countersinked/counterbored on the backside of the lug holes (many are not, or not as deep at least as the OEM wheels) - remove the rotor retaining clips (2x each wheel usually) from the lugs (needle nose pliers can 'unscrew' them).
- I think even some aftermarket wheel vendors note this.
Some have said removing the clips solved their aftermarket wheel shimmy at speed - at least in cases where the wheels are not counterbored enough on the lug hole backside. (i.e. the clips prevent a fully uniform contact of the wheel mtg surfaces...)
You may already have done that but just a FYI...
- I think even some aftermarket wheel vendors note this.
Some have said removing the clips solved their aftermarket wheel shimmy at speed - at least in cases where the wheels are not counterbored enough on the lug hole backside. (i.e. the clips prevent a fully uniform contact of the wheel mtg surfaces...)
You may already have done that but just a FYI...
Thread Starter
Racer
Joined: Jan 2007
Posts: 398
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From: forney texas 725rwhp/768rwtq
One other thing to check - if the wheels are not countersinked/counterbored on the backside of the lug holes (many are not, or not as deep at least as the OEM wheels) - remove the rotor retaining clips (2x each wheel usually) from the lugs (needle nose pliers can 'unscrew' them).
- I think even some aftermarket wheel vendors note this.
Some have said removing the clips solved their aftermarket wheel shimmy at speed - at least in cases where the wheels are not counterbored enough on the lug hole backside. (i.e. the clips prevent a fully uniform contact of the wheel mtg surfaces...)
You may already have done that but just a FYI...
- I think even some aftermarket wheel vendors note this.
Some have said removing the clips solved their aftermarket wheel shimmy at speed - at least in cases where the wheels are not counterbored enough on the lug hole backside. (i.e. the clips prevent a fully uniform contact of the wheel mtg surfaces...)
You may already have done that but just a FYI...
.im going to do that right now and see if that fixes the problem.thanks alot to everyone.
Team Owner
Joined: Jul 2004
Posts: 24,652
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From: NJ
St. Jude Donor '05-'08
If that doesnt fix your problem then if you have your old wheels around try putting those on the front and see if the vibration is gone or not. If it is gone then you know it is the new wheels. If it is still there then you need to focus your attention else where.
Personally since it happens at 70-80 mph is sounds like the balance is off, but CCW is very good so that would surprise me (I have 4 sets with no issues) although a weight could have fallen off.
good luck I know that the vibration is annoying...
Bob
Thread Starter
Racer
Joined: Jan 2007
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From: forney texas 725rwhp/768rwtq
I would take off the retainers and start there. I would also double check tire pressure and make sure they are correct. Those are the easy checks.
If that doesnt fix your problem then if you have your old wheels around try putting those on the front and see if the vibration is gone or not. If it is gone then you know it is the new wheels. If it is still there then you need to focus your attention else where.
Personally since it happens at 70-80 mph is sounds like the balance is off, but CCW is very good so that would surprise me (I have 4 sets with no issues) although a weight could have fallen off.
good luck I know that the vibration is annoying...
Bob
If that doesnt fix your problem then if you have your old wheels around try putting those on the front and see if the vibration is gone or not. If it is gone then you know it is the new wheels. If it is still there then you need to focus your attention else where.
Personally since it happens at 70-80 mph is sounds like the balance is off, but CCW is very good so that would surprise me (I have 4 sets with no issues) although a weight could have fallen off.
good luck I know that the vibration is annoying...
Bob
so as long as that drive was far enough to see,im pretty sure it was the retainers like eveyone said.i hope that was it because i sold my old wheels so i couldnt swap those out like you were saying,but that have been a good idea. thanks alot to all that helped
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Thread Starter
Racer
Joined: Jan 2007
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From: forney texas 725rwhp/768rwtq
Racer
Joined: Aug 2005
Posts: 492
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From: Sunny So Cal
I'm glad I found this thread. I just installed a set of sp500 on my C5Z this morning and started to notice steering wheel shaking at high speed, very noticeable at 70+.
I do remember the two retaining clips at each front wheels. So I will remove those tomorrow.
I don't recall if the clips are present in the rear wheels too. If so, should I remove the rear ones too?
I do remember the two retaining clips at each front wheels. So I will remove those tomorrow.
I don't recall if the clips are present in the rear wheels too. If so, should I remove the rear ones too?
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
It happened to me last week when I mounted my new CCW's. Removing the rotor clips fixed the shimmey 100%. Dan, a brief install reminder shipped wih wheels to remove clips would save lots of headaches!
Love my new CCW Wheels!
Love my new CCW Wheels!
Thread Starter
Racer
Joined: Jan 2007
Posts: 398
Likes: 0
From: forney texas 725rwhp/768rwtq
I'm glad I found this thread. I just installed a set of sp500 on my C5Z this morning and started to notice steering wheel shaking at high speed, very noticeable at 70+.
I do remember the two retaining clips at each front wheels. So I will remove those tomorrow.
I don't recall if the clips are present in the rear wheels too. If so, should I remove the rear ones too?
I do remember the two retaining clips at each front wheels. So I will remove those tomorrow.
I don't recall if the clips are present in the rear wheels too. If so, should I remove the rear ones too?
Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
Ha, tell me about it! I had a plug put into one of my front wheels because of a nail and it shook at 70-80mph too. I tried to drive across the country like that: went from LA to Detroit then in Detroit I hit a pothole that blistered the tire prety bad. Drove back to Chicago and had all 4 replaced; now it is perfectly smooth up to 150mph and over.
Thread Starter
Racer
Joined: Jan 2007
Posts: 398
Likes: 0
From: forney texas 725rwhp/768rwtq
Ha, tell me about it! I had a plug put into one of my front wheels because of a nail and it shook at 70-80mph too. I tried to drive across the country like that: went from LA to Detroit then in Detroit I hit a pothole that blistered the tire prety bad. Drove back to Chicago and had all 4 replaced; now it is perfectly smooth up to 150mph and over.
,once you start you cant stop
