Please help!!!
Thread Starter
Intermediate
Joined: Oct 2011
Posts: 31
Likes: 0
From: Acworth GA
Please help!!!
I have an 06 z51, just installed my wheels today at my dealership where I work. The wheels are zr1 replicas 18x8.5, 19x10 from oewheelsllc.com- great price, but they have a bad tremble and vibration on steering wheel around 60+mph. My boss said I need 1 inch spacers and extended lugs to fit, he is a car guy... Anyways any advice?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
Burning Brakes
Joined: Nov 2012
Posts: 1,049
Likes: 1
From: Wisconsin
I have an 06 z51, just installed my wheels today at my dealership where I work. The wheels are zr1 replicas 18x8.5, 19x10 from oewheelsllc.com- great price, but they have a bad tremble and vibration on steering wheel around 60+mph. My boss said I need 1 inch spacers and extended lugs to fit, he is a car guy... Anyways any advice?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
I'd keep cats on the car. What if you have to move to another state? Even worse. What if it were Kalifornia?
Drifting
Joined: Feb 2012
Posts: 1,796
Likes: 37
From: skiatook oklahoma
vibration...
out of balance (try road force balancing)
bent/warped rim (use light/laser on balance machine to see wobble)
bruised tire (probably ruled out of you havent smacked a chuckhole)
improper lug nuts for rim (possible, i dont know)
note, i have had bad balancing, so thats possible
note, i had a bent rim on vette when wife smacked a BIG chuckhole
note, bruised a tire on BMW once
note, when a kid, i forgot to tighten lugs on parents car, not exactlly improper lugs but same effect
all my notes caused wobble/vibration... oh just thought of another....
if you feel brake peddle pulsing, warped rotor or rotor wobbleing
out of balance (try road force balancing)
bent/warped rim (use light/laser on balance machine to see wobble)
bruised tire (probably ruled out of you havent smacked a chuckhole)
improper lug nuts for rim (possible, i dont know)
note, i have had bad balancing, so thats possible
note, i had a bent rim on vette when wife smacked a BIG chuckhole
note, bruised a tire on BMW once
note, when a kid, i forgot to tighten lugs on parents car, not exactlly improper lugs but same effect
all my notes caused wobble/vibration... oh just thought of another....
if you feel brake peddle pulsing, warped rotor or rotor wobbleing
Last edited by ChevyDave; Mar 27, 2013 at 12:57 AM.
Thread Starter
Intermediate
Joined: Oct 2011
Posts: 31
Likes: 0
From: Acworth GA
All good advice- does anyone know what spacers may do? My boss was stating that the back tires looked too narrow- but before with the stock set- they drove just fine without spacers?
Burning Brakes
Joined: Nov 2012
Posts: 1,049
Likes: 1
From: Wisconsin
What your boss might be saying is that the wheel offsets might be different on your new wheels compared to your old ones. You should check that out. If that is true, your tires could be positioned too far towards the center of the vehicle. Spacers would push them back out to where they would have been give your old wheel offset. But it is not clear whether that alone would be causing your vibration or whether there it is something separate from that going on. But check the offsets of new wheels and compare to old.
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Racer
Joined: Apr 2006
Posts: 373
Likes: 0
From: Concord NC
Been going through this in an older thread. Repro wheels may have too large a hole in the center and therefore are not hub centric. Apparently you and I need concentric hub rings. These ensure that the wheel is centered when the lugs are tightened.
I am using repro wheels, had them balanced three times and the vibes never got better until I retorqued the lugs in three steps. I still have some vibration but it's as good as it's been.
I am measuring my wheels and hubs today to order rings. You can get them in aluminum or plastic. I've seen Gorilla brand on Amazon for peanuts.
I am using repro wheels, had them balanced three times and the vibes never got better until I retorqued the lugs in three steps. I still have some vibration but it's as good as it's been.
I am measuring my wheels and hubs today to order rings. You can get them in aluminum or plastic. I've seen Gorilla brand on Amazon for peanuts.
Le Mans Master
Joined: Feb 2002
Posts: 5,394
Likes: 281
From: cumming ga
I have an 06 z51, just installed my wheels today at my dealership where I work. The wheels are zr1 replicas 18x8.5, 19x10 from oewheelsllc.com- great price, but they have a bad tremble and vibration on steering wheel around 60+mph. My boss said I need 1 inch spacers and extended lugs to fit, he is a car guy... Anyways any advice?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
On a second request, i have borla atak cat backs- there is no emissions in my county, so I've been thinking of ordering LG headers with xpipe no cats, and tuning my engine with a diablo tuner- any advice so I don't blow up my engine?
z51vett
Doug
Last edited by z51vett; Mar 27, 2013 at 08:47 AM.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
Wheels installed by the Dealer? Did anyone check to see if the Tinnerman nuts from assembly had been removed with the wheels swap?
Tinnerman nuts are the split star washers placed on the rotors at assembly, OEM (stock) wheels have a relieved area on the wheel to allow for this nut/washer, some aftermarket wheels don't have the relief and the wheels ends up off center since the tinnerman nut acts like a spacer/washer and holds the wheel away from the rotor on one lug.
Real easy to check, just remove the wheel and look at the rotor. There shouldn't be anything on the rotor or the lug that would keep the wheel from being pulled flush to the rotor.
Tinnerman nuts are the split star washers placed on the rotors at assembly, OEM (stock) wheels have a relieved area on the wheel to allow for this nut/washer, some aftermarket wheels don't have the relief and the wheels ends up off center since the tinnerman nut acts like a spacer/washer and holds the wheel away from the rotor on one lug.
Real easy to check, just remove the wheel and look at the rotor. There shouldn't be anything on the rotor or the lug that would keep the wheel from being pulled flush to the rotor.
Last edited by haljensen; Mar 27, 2013 at 09:51 AM.
Melting Slicks
Joined: Oct 2008
Posts: 2,098
Likes: 8
From: Dayton Ohio
This may be a little late in the game to mention this...
Any time you buy replica wheels, you should have them spun on a balancer before you mount tires on them to make sure the wheels don't have any roundness/runout issues. Most people have had good luck with replica wheels, but occasionally a bad wheel finds its way onto someone's car. Sometimes vendors will blame the tire mounting process if you don't discover a bad wheel until after you have mounted tires on them.
Any time you buy replica wheels, you should have them spun on a balancer before you mount tires on them to make sure the wheels don't have any roundness/runout issues. Most people have had good luck with replica wheels, but occasionally a bad wheel finds its way onto someone's car. Sometimes vendors will blame the tire mounting process if you don't discover a bad wheel until after you have mounted tires on them.
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 853
From: Daytona Beach FL
Hmmmm.....you double posted.
I agree with haljensen that the Tinnerman nuts sometimes create your problem when aftermarket wheels don't have a recessed/countersunk area to accommodate them.
See my response in your thread in the Tech Section:
http://forums.corvetteforum.com/1583472336-post2.html
Bob
I agree with haljensen that the Tinnerman nuts sometimes create your problem when aftermarket wheels don't have a recessed/countersunk area to accommodate them.
See my response in your thread in the Tech Section:
http://forums.corvetteforum.com/1583472336-post2.html
Bob
It's 5 o'clock Somewhere
Joined: Jan 2013
Posts: 1,996
Likes: 21
From: HOUSTON TEXAS
St Jude Donor '13-'14-'15
Definatly check the tinnerman nuts. You said new wheels, but didnt mention new tires. If you didnt change tires and it was good before, that rules out a tire issue. You could need centering rings, but most of the OE replicas are made very close to OE specs and wouldnt need them. The key word here is most. My guess is balance. Find someone with a road force balancer that knows how to use it and your problem should be cured.
Melting Slicks
Joined: Oct 2010
Posts: 2,220
Likes: 16
From: Sugarhill Ga
are the wheels & tires new ? if they are, shake the wheels from side to side up & down, check for anything loose or worn & check the balance again, have them road forced. while you have them off, check to see if the retainers for the rotors are still on, they can cause the wheel not to sit flush and HAND TORQUE the wheels to 100 lbs. or you can warp the rotors. you should not need spacers on that size wheel.
Racer
Joined: Apr 2006
Posts: 373
Likes: 0
From: Concord NC
You could need centering rings, but most of the OE replicas are made very close to OE specs and wouldnt need them
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 853
From: Daytona Beach FL
I just checked mine and the bore is <.5mm larger than the hub. No one makes rings that close and custom rings are $100. I checked my stock wheels and they're bored a lot bigger than my aftermarket wheels are. I guess I'm just screwed and will have to put up with vibration or put the factory wheels back on which I hate.
The lug nuts/lug holes in the wheel are what centers the wheel on the hub, so don't worry about the center of the wheel being larger than the hub. Our wheels are not hub-centric!!
Bob