[ZR1] VIBRATION-Steering Wheel
03-12-2015, 09:12 AM
#1
Racer
Thread Starter
VIBRATION-Steering Wheel (AFTERMARKET WHEELS)
Yeah,I know this has been beat to death but I need some answers from you guys. I bought my car (2010) in November,after delivery I took it out to make sure the car didn't have the dreaded vibration and it did not. Up to 100 MPH on the highway and smooth as silk,this was with the stock chrome wheels. I have since put on the black cup repros from Corvette Mods with the same tires just swapped on to the new rims-and NOW I have the vibration starting above 65 MPH!! Seems like that tells me it's a wheel problem,not so much a rotor issue. Any guys do a swap like this and have similiar problems what's the fix?? I will be taking it back to the dealer to check the balance,but I am hearing about indexing the wheels and putting wheel weights near the front AND rear of the wheel to balance it,any other advice?? Thanks Rich
Last edited by spitfun; 03-15-2015 at 12:21 PM. Reason: edit title
03-12-2015, 11:07 AM
#2
Racer
If it was the rotors you would have felt it earlier so I'd lean strongly towards a balance issue on the new wheels. What machine was used to balance them? Not all balance issues can be solved by the simple machines that just test for rotational balance.
Hunter Engineering makes most of the high end wheel balance machines and they have the ability to check for inner-to-outer barrel balance, runout, rotational harmonics (vibration at different speeds), and even lateral pull from the tire tread itself. You'll see multiple wheel weights all over the place on wheels done on these machines, vs. just a row of weights on the outer row. See if you can locate a shop with one of these higher end Hunter machines.
Hunter Engineering makes most of the high end wheel balance machines and they have the ability to check for inner-to-outer barrel balance, runout, rotational harmonics (vibration at different speeds), and even lateral pull from the tire tread itself. You'll see multiple wheel weights all over the place on wheels done on these machines, vs. just a row of weights on the outer row. See if you can locate a shop with one of these higher end Hunter machines.
03-12-2015, 12:39 PM
#3
Le Mans Master
The previous owner could have had the OEM wheels done this way to offset a vibration issue. You wouldn't notice it until you changed wheels so it may be possible you do have the rotor scenario or just a bad new wheel. If you still have the OEM wheels you might look at them to see if they have weights in the inside both close to the outside and the inside. Either way, what's stated above is good info.
03-12-2015, 01:58 PM
#4
Melting Slicks
They probably just need to be rebalanced. That being said, I doubt the reproduction wheels you have are of the same quality and tolerances as the factory GM wheels.
03-13-2015, 10:33 AM
#5
Melting Slicks
You may have answered your own question with the reference to indexing. Regardless if that's the answer or not, the above will probably solve the issue. Going through the motions of attempting to re-index is probably not a good strategy at this point.
I stressed once when the dealer had to remove the front wheels to change out the headlights. Fortunately, the problem never surfaced.
I stressed once when the dealer had to remove the front wheels to change out the headlights. Fortunately, the problem never surfaced.
03-13-2015, 03:47 PM
#6
Racer
You may want to consider checking the locking washer on the rotor. Some after market wheels do not allow for that washer. If it's there, remove it, it's just for assembling at the factory.
03-15-2015, 11:08 AM
#13
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Aftermarket wheels seem to be a magnet for vibration issues.....
03-15-2015, 11:52 AM
#14
_"SCOTT"_
What will cause vibration would be if there were no counter bore on the back side of the aftermarket wheels at the stud holes. (Counter bored holes pictured on my stock Z06 wheels)
With no clearance for the 1 or 2 washers typically found holding the brake discs on, will cause the wheel(s) to sit "out of square" creating vibration.
One easy way to alleviate this would be to remove wheels, inspect for counter bore. If no counter bores exist on the wheels, remove the disc washers and reinstall the wheels.
With no clearance for the 1 or 2 washers typically found holding the brake discs on, will cause the wheel(s) to sit "out of square" creating vibration.
One easy way to alleviate this would be to remove wheels, inspect for counter bore. If no counter bores exist on the wheels, remove the disc washers and reinstall the wheels.
03-15-2015, 12:14 PM
#15
Racer
Thread Starter
Success!! Thanks corvettejoe09,that's exactly what is was,I just took the car up to 100MPH on the highway and no vibration... This type of info should be made a sticky,it seems like most guys are unaware of this... Rich