vibration
Thread Starter
2nd Gear
Joined: May 2008
Posts: 2
Likes: 0
From: pinehurst n.c.
vibration
05- C6 has vibration that goes up & down, Just bearly feel it in steering wheel @ 50 to 60 MPH,but really feel the vibration on vehicle & tires. Had all wheels balanced twice,with propper torque, Tires have no high spots . I am perplexed. Does this @ either accel or decel from 50-60 MPH or 60 to 50 MPH. Completely stops below 50 MPH. Alignment was ok. Had that checked also. Any suggestions? Anyone else with this same problem?
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
Some aftermarket wheels can cause this condition, or a damaged OEM wheel.
The most common cause is wheel/tire imbalance, lateral or radial run-out, or tire radial force variation. If possible, I would try a known good set of wheels/tires for diagnosis.
Hunter has a state of the art tire balancer that can measure and compensate for radial force variation and can also detect lateral and radial run out.
Also, dealers use an EVA (Electronic Vibration Analyzer) that can help to determine the source of the vibration. It is sometime drive shaft or axle joint related.
The most common cause is wheel/tire imbalance, lateral or radial run-out, or tire radial force variation. If possible, I would try a known good set of wheels/tires for diagnosis.
Hunter has a state of the art tire balancer that can measure and compensate for radial force variation and can also detect lateral and radial run out.
Also, dealers use an EVA (Electronic Vibration Analyzer) that can help to determine the source of the vibration. It is sometime drive shaft or axle joint related.
Last edited by calemasters; Apr 25, 2009 at 12:11 PM.
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
Some aftermarket wheels can cause this condition, or a damaged OEM wheel.
The most common cause is wheel/tire imbalance, lateral or radial run-out, or tire radial force variation. If possible, I would try a known good set of wheels/tires for diagnosis.
Hunter has a state of the art tire balancer that can measure and compensate for radial force variation and can also detect lateral and radial run out.
Also, dealers use an EVA (Electronic Vibration Analyzer) that can help to determine the source of the vibration. It is sometime drive shaft or axle joint related.
The most common cause is wheel/tire imbalance, lateral or radial run-out, or tire radial force variation. If possible, I would try a known good set of wheels/tires for diagnosis.
Hunter has a state of the art tire balancer that can measure and compensate for radial force variation and can also detect lateral and radial run out.
Also, dealers use an EVA (Electronic Vibration Analyzer) that can help to determine the source of the vibration. It is sometime drive shaft or axle joint related.
Melting Slicks
Joined: Jan 2003
Posts: 2,026
Likes: 178
From: Jacksonville, NC
I have the same issue after switching to aftermarket Z06 wheels. Mine starts at 70 and is horrible at 80. I have been unable to get any faster due to traffic to see if it goes away past 80. I too have had them balanced twice but I am just trying to find time to get it on a Hunter Force Balancer. They are scarce where I am at. I found one but tough to get in there. Wished I had just kept the OEM's. I really don't get to go that fast but it is irritating when I do. THe wife's mini van is smooth as silk at 80.
Curious to see if you all find a solution.
Curious to see if you all find a solution.
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
An example of a Hunter balancer that can measure and compensate for tire road force variation is the Hunter GSP9700 Road Force Measurement balancer.
If you have aftermarket wheels that cause a vibration, I would replace the wheels with wheels that have correct wheel specifications. Some aftermarket wheels do cause problems, while other aftermarket wheels are of excellent quality.
If you have aftermarket wheels that cause a vibration, I would replace the wheels with wheels that have correct wheel specifications. Some aftermarket wheels do cause problems, while other aftermarket wheels are of excellent quality.
Melting Slicks
Joined: Dec 2008
Posts: 2,296
Likes: 3
Curious if you also have the aftermarket repro Z06 wheels? Not saying others couldn't have the same issue, but just curious if maybe its a common issue with them.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Can't help you all, but Mr. Quantico, go here (http://www.gsp9700.com/pub/search/findgsp9700.cfm). This is the website for locating a nearby Hunter RoadForce Balancer that calemaster's mentioned.
If you can, try and get to one of the Curry's Automotive shops. They have pretty darned good balancer guys and equipment.
If you can, try and get to one of the Curry's Automotive shops. They have pretty darned good balancer guys and equipment.
Drifting
Joined: Apr 2009
Posts: 1,307
Likes: 26
From: Miami
I have the chrome 5spoke. I get mine at 80ish and it goes something like this ------~~~~-----~~~~-----~~~~. Tell me if I got it right CorpsVette.
It makes me kinda uneasy and not want to drive it like I stold it!
Thank you guys for the info.
Semper Fi
Rod
It makes me kinda uneasy and not want to drive it like I stold it!
Thank you guys for the info.
Semper Fi
Rod
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Intermediate
Joined: Jun 2007
Posts: 32
Likes: 0
From: henderson nevada
vibration gone
Hi! guys, I changed my wheels about a year ago, had the same problem with vibration. Their was an article on the forum about this same topic, it seems that their are two lock washers installed on each rotor at the factory, only purpose is to hold the rotor on while the car is moving on the assemble line. On some aftermarket wheels the holes are not beveled on the back of the rim to clear the washers. This keeps the wheel from seating flush with the rotor. I think the correct word for the washers are (tinnerman nuts). Sure enough when i removed my wheels their they were. I removed the washers and the vibration was gone. Seems simple but that was the problem.
Melting Slicks
Joined: Jan 2003
Posts: 2,026
Likes: 178
From: Jacksonville, NC
Hi! guys, I changed my wheels about a year ago, had the same problem with vibration. Their was an article on the forum about this same topic, it seems that their are two lock washers installed on each rotor at the factory, only purpose is to hold the rotor on while the car is moving on the assemble line. On some aftermarket wheels the holes are not beveled on the back of the rim to clear the washers. This keeps the wheel from seating flush with the rotor. I think the correct word for the washers are (tinnerman nuts). Sure enough when i removed my wheels their they were. I removed the washers and the vibration was gone. Seems simple but that was the problem.
Racer
Joined: Jan 2009
Posts: 383
Likes: 1
From: McHenry IL
Brian
Racer
Joined: Jan 2009
Posts: 383
Likes: 1
From: McHenry IL
As an earlier poster stated above, the factory puts those keepers on there to hold the rotors on when the car is going down the assembly line before the tires go on. The factory wheels are beveled in the back to make room for those things so the wheels can seat properly on the rotor. Some aftermarket wheels dont have those provisions, so when mounted on the car they dont sit perfectly flush on the rotors causing the vibration. It makes sense that my tires were "load balanced" several times at a decent cost and were perfect on the machine, but on the car they vibrated like crazy at 50-60mph.
Melting Slicks
Joined: Jul 2008
Posts: 2,014
Likes: 2
St. Jude Donor '09-'10
U get what u pay for.
Hate to say it but buy Forgelines - sorry but you get what you pay for - I would personally try to id which rim in the culprit, take them or it off and send back for a replacement.
I have the same issue after switching to aftermarket Z06 wheels. Mine starts at 70 and is horrible at 80. I have been unable to get any faster due to traffic to see if it goes away past 80. I too have had them balanced twice but I am just trying to find time to get it on a Hunter Force Balancer. They are scarce where I am at. I found one but tough to get in there. Wished I had just kept the OEM's. I really don't get to go that fast but it is irritating when I do. THe wife's mini van is smooth as silk at 80. Curious to see if you all find a solution.
Curious to see if you all find a solution.