LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

225/55/18 all around?

Thread Tools
 
Search this Thread
 
Old 12-07-2010, 09:59 PM
  #1  
Staging Lane
Thread Starter
 
christopher.lazaris's Avatar
 
Join Date: Oct 2010
Location: macomb,mi
Posts: 81
Likes: 0
Received 0 Likes on 0 Posts
Default 225/55/18 all around?

i just slapped on some pirelli tires 225/55/18 and after 50mph its shaking and stops after 70mph.... is the tire size the reason?
Old 12-07-2010, 11:04 PM
  #2  
TECH Fanatic
iTrader: (3)
 
GXP25's Avatar
 
Join Date: Aug 2009
Location: Orlando, FL
Posts: 1,392
Likes: 0
Received 0 Likes on 0 Posts
Default

I remember that you bought your vehicle with those aftermarket wheels. Are they 7 or 8 inches wide? Did you get them balanced?

I think 225 is a little too narrow for an 8" wide wheel. Now if they're 7" you should be fine.

Small FYI: our rear tire size is 225/50-18 on a 7" wide wheel from the factory.
Old 12-07-2010, 11:13 PM
  #3  
11 Second Club
iTrader: (25)
 
DuronClocker's Avatar
 
Join Date: Nov 2005
Location: Clearwater, FL
Posts: 1,241
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by GXP25
I remember that you bought your vehicle with those aftermarket wheels. Are they 7 or 8 inches wide? Did you get them balanced?

I think 225 is a little too narrow for an 8" wide wheel. Now if they're 7" you should be fine.

Small FYI: our rear tire size is 225/50-18 on a 7" wide wheel from the factory.
A 225/55 on an 8" wheel should be fine. Not ideal, but it shouldn't have any weird issues specifically related to tire-rim size. Years ago I ran 215 snows on 16x8's on a few different vehicles (first an '88 TA, then a '98 Z28, then a '00 Jimmy 4x4).
Old 12-07-2010, 11:17 PM
  #4  
TECH Fanatic
iTrader: (3)
 
GXP25's Avatar
 
Join Date: Aug 2009
Location: Orlando, FL
Posts: 1,392
Likes: 0
Received 0 Likes on 0 Posts
Default

Oh okay. That's good to know.

Thanks!
Old 12-07-2010, 11:27 PM
  #5  
TECH Fanatic
iTrader: (2)
 
CenTexSS's Avatar
 
Join Date: Feb 2009
Location: Killeen, Texas.
Posts: 1,398
Likes: 0
Received 0 Likes on 0 Posts
Default

Sounds like a balance issue. Didn't do it before, right?
Old 12-07-2010, 11:32 PM
  #6  
11 Second Club
iTrader: (25)
 
DuronClocker's Avatar
 
Join Date: Nov 2005
Location: Clearwater, FL
Posts: 1,241
Likes: 0
Received 1 Like on 1 Post

Default

If it took 50 miles for it to start happening, maybe a weight fell off? Check the sidewalls for any bulges? Check lugnut torque? I'd take it back to the tire place and have them check the balance. They'll be able to let you know if it is a balance weight issue or a tire issue (shifted band, etc.)

If balancing checks out, I'd look at how the wheels are bolting to the car to make sure there aren't any issues there.
Old 12-08-2010, 06:33 AM
  #7  
TECH Fanatic
iTrader: (4)
 
monte_with_a_LS4's Avatar
 
Join Date: Mar 2010
Location: Springfield, IL
Posts: 1,124
Likes: 0
Received 0 Likes on 0 Posts
Default

might check and see if the aftermarket wheels have hub rings. thats what solved my problem
Old 12-08-2010, 11:42 PM
  #8  
Staging Lane
Thread Starter
 
christopher.lazaris's Avatar
 
Join Date: Oct 2010
Location: macomb,mi
Posts: 81
Likes: 0
Received 0 Likes on 0 Posts
Default

Ill check all these out thanks guys.
Old 12-09-2010, 12:22 AM
  #9  
On The Tree
 
heavyft's Avatar
 
Join Date: Sep 2007
Location: Dayton, OH
Posts: 164
Likes: 0
Received 0 Likes on 0 Posts

Default

Check loose lug nuts!!!
Old 12-09-2010, 01:19 AM
  #10  
TECH Enthusiast
iTrader: (4)
 
blakss's Avatar
 
Join Date: May 2009
Location: Chicago Il
Posts: 644
Likes: 0
Received 0 Likes on 0 Posts
Default

Or it could be the tire with a bubble. Needs to be rebalanced. Maybe bent rim. Idk I'm out of ideas lol



Quick Reply: 225/55/18 all around?



All times are GMT -5. The time now is 08:30 AM.