Dreaded Steering Wheel Vibrations at High Speed

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minibeany

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minibeany

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Possible coz logically if some minor unbalance in the rims, it can be more magnified as it gets further away. Try do on wheel balancing at another different place, maybe they can do it more precisely? My regular place is King Of Rims in Shah Alam coz I don't know where else has it.
Like that place. Their mechanic balancing with machinery and human method.
 

Izso

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Izso

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Does too much wheel offset can cause vibration ? And also my front disc rotor is floating type which 2.5' hub center hub that pushes that wheel further out from the knuckle. Rear wheel hub is stock diameter. I am actually suspecting the front of the car is now same, if not slightly wider than rear. Can that inbalance cause wheel vibrations ?
It might now that you mention it.
 

parakey

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parakey

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If you still have your old rims/tyres, stick them in and you will know immediately whether to rule rims out.
 

Mitevo7

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Mitevo7

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If you still have your old rims/tyres, stick them in and you will know immediately whether to rule rims out.
Can't do, the M3 brakes are too fxxking huge, my stock 16' can't fit at all, not even with the widest spacers.
 

Izso

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Izso

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Can't do, the M3 brakes are too fxxking huge, my stock 16' can't fit at all, not even with the widest spacers.
The 330/335 brake calipers are larger and those are PNP without having to change rims. Maybe try those
 

Mitevo7

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Mitevo7

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Dear All,

Just found out one thing, the centre bore size of the rear wheels are not matched, therefore causes all the vibrations to the body. The front one matches due to i need to use after market wheel bearing to mount the disc rotor, and the bore size at the front is 74.5 mm. The rear is 72.5 mm. We jacked the car and put the gear in D to see the movement and noticed the wheels are hopping up and down. We just need to install the right fitment of centre cone and see whether it cures this shit.

Thanks,
Ken
 
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Mitevo7

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Mitevo7

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The 330/335 brake calipers are larger and those are PNP without having to change rims. Maybe try those
Too bad i bought the M3 brakes for the M letter wordings LOL. And it came with aftermarket size floating disc rotors, it was a great deal. I even grabbed along the eibach front and rear adjustable antiroll bar so all in was a very sweet deal.
 
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parakey

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parakey

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Dear All,

Just found out one thing, the centre bore size of the rear wheels are not matched, therefore causes all the vibrations to the body. The front one matches due to i need to use after market wheel bearing to mount the disc rotor, and the bore size at the front is 74.5 mm. The rear is 72.5 mm. We jacked the car and put the gear in D to see the movement and noticed the wheels are hopping up and down. We just need to install the right fitment of centre cone and see whether it cures this shit.

Thanks,
Ken
Congratulations. I think you found the culprit
 

sweelt

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sweelt

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I am still debating with the mechanic to use a center cone but he insists no need for cone, cause the size matches. Alot of BMW wheels are interchangable, furthermore, i am using using aftermarket design but OEM designed.
The center ring make the wheels snub fit. My tayarman use white teflon, he machine out the ring.
When pull out the wheels need more punch up, down, left, right. Hahaha
 

vr2turbo

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vr2turbo

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Before changing to 17", everything is good and smooth, that time my wheels are still buried further in the car body, now it extended out till aligned with the car body. Mechanic said too much offset can have this issue, has something to do with the distance between wheel center and the knuckle.
The wheel further out is original rims offset or by using spacers?
 

vr2turbo

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vr2turbo

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The center ring make the wheels snub fit. My tayarman use white teflon, he machine out the ring.
When pull out the wheels need more punch up, down, left, right. Hahaha
mine made of aluminum, had balancing issues before using them. need to centralized then on wheel balancing. then every time take out, mark the hole also no use.....lol Now with the cone, off wheel balancing ok already, take out put back no marking also no issue......haha
 

Mitevo7

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Mitevo7

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The wheel further out is original rims offset or by using spacers?
2 things that made the front wheels sir further out:

1.) Negative offset of the wheels
2.) The disc rotor center hub is wider than stock and came with centric hub design, sort of like a spacer.
 

vr2turbo

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vr2turbo

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2 things that made the front wheels sir further out:

1.) Negative offset of the wheels
2.) The disc rotor center hub is wider than stock and came with centric hub design, sort of like a spacer.
As long as have centric hub that fits the rims center, they are ok. Many spacers are just flat so it does not keep the rims centralized......
 

vr2turbo

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vr2turbo

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Dear All,

Just found out one thing, the centre bore size of the rear wheels are not matched, therefore causes all the vibrations to the body. The front one matches due to i need to use after market wheel bearing to mount the disc rotor, and the bore size at the front is 74.5 mm. The rear is 72.5 mm. We jacked the car and put the gear in D to see the movement and noticed the wheels are hopping up and down. We just need to install the right fitment of centre cone and see whether it cures this shit.

Thanks,
Ken
Your vibration problem settled?
 

Mitevo7

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Mitevo7

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Your vibration problem settled?
Yes it was settled, how amazing that just a 2 mm difference in hub bore size can caused so much trouble. Now i am able to drive the car with confidence !
 

vr2turbo

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vr2turbo

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Yes it was settled, how amazing that just a 2 mm difference in hub bore size can caused so much trouble. Now i am able to drive the car with confidence !
That was why my first question to you was, got center ring?.....lol
 

Mitevo7

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Mitevo7

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That was why my first question to you was, got center ring?.....lol
Initially no, coz the mechanic insist it doesn’t need centre ring cause its oem. Finally he gave in and check for free play and found it. Haha
 

parakey

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parakey

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Initially no, coz the mechanic insist it doesn’t need centre ring cause its oem. Finally he gave in and check for free play and found it. Haha
Simple case of removing the rear wheel and measuring. Your mechanic is quite a stubborn fella
 

Mitevo7

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Mitevo7

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Simple case of removing the rear wheel and measuring. Your mechanic is quite a stubborn fella
I yelled at him to finally threaten him i am not paying until you cured the issue. And there we go :)

Yeah, most mechanic will jack up the wheels and use hand to rotate and confirm about the issue.
That's what he did, and the stock wheels and lug nuts are very tight when testing. Therefore he wasn't suspecting the centre cone either.