Re: [Chrysler300] Tires

["Roger Schaaf" <obiwan10@xxxxxxxxxxx>]

Don:

One of the most interesting, insightful posts that I have seen.  If you should ever run some Diamondbacks, Cokers or other third party wide white radials thru this process, please post your findings on their qualities.

I would be especially interested too in how well these tires balance up dynamically as opposed to mere statically.  

I have too(I've suggest this before on the forum) found Michelins in general are the only tire that I can almost always be assured will balance up properly, not have "radial pull" and other such deficiences that cause all types of handling, ride, vibration, or streering problems.

One example of the problem that I've had with non Michelins was this. 
Some 20 years ago I purchased a new Mercedes 560 SEC and when the original Continentals had worn down( they did not last long and had a noisy harsh ride) I did some homework and based upon assertions of Consumer Reports in their opinion of tires(yes, I know) I installed a set of UniRoyals(according to CR they had great handling, and a quiet comfortable ride).  From then on the car pulled to the left.  I had the car in a couple of times for alignment checks and fooled with inflation pressures etc.  I then had tires rotated around the car and suddenly it was pulling right instead of left.  To shorten a long tale, my local tire dealer replaced all UniRoyals with Michelin Mxv's.  All problems were no gone, and that set of tires ran 47,000 miles before the next set were installed.  Again installed Michelins and have never had another tire problem on this car.  

What I finally determined on the UniRoyals that caused my "pulling" problem was probably a phenomenon known as "radial pull".  Click this link for more details.

http://www.babcox.com/editorial/tr/tr50244.htm

Roger Schaaf
300 B Calyfornua
  ----- Original Message ----- 
  From: Donald A Verity 
  To: 'George McKovich' ; 'John J. Hertog' ; Chrysler300@xxxxxxxxxxxxxxx 
  Sent: Saturday, February 03, 2007 8:12 AM
  Subject: RE: [Chrysler300] Tires


  Hi All,

  George is correct about the road force balancing. The body shop that I am
  parts manager at bought a GSP9700 a little over a year ago, along with the
  latest Hunter tire changing machine. My Boss likes expensive toys! I don't
  know any other tire stores in the area that have the same machine, due to
  the price tag. I am the only one in the shop authorized to use this machine,
  and I can also say from personal experience that nothing sets up a tire
  better. What the "road force" part does is simulates the tire going down the
  road. It measures the stiffness of the side wall, compares it to rim run
  out, and gives you reference points to re-position the tire on the rim. If
  the rim is straight, and the tire has large differences in the side wall
  stiffness, there isn't much that can be done other than balancing. The GSP
  also has an internal calibration check that I run once a week to be sure the
  machine is calibrated properly. Most older machines do not have this
  capability, so even though they may appear to properly balance the tire, it
  still may not be in balance. The GSP9700 also can store information if you
  check two or four tires, and tell you where on the car they should be based
  on least vibration, or least pull. If you have read this far, you probably
  realize that this is not a simple or quick process, which justifies the
  added cost. It's a benefit that can be felt immediately though, and makes
  driving much more enjoyable. In closing let me add that tire quality has a
  big effect on how they ride. Michelin tires still stand out as high quality
  tires that run very true. BF Goodrich, Bridgestone, and some Goodyear are
  also pretty good. Cooper, Mastercraft, and other "store" brands rank the
  lowest. This is only my personal experience of coarse, your results may
  vary. Since I have control over the machine at work, it is also likely that
  I could do some tires for local people on a limited basis.

  Happy Motoring!

  Don Verity in (Sunny at the Moment) Rhode Island

  _____ 

  From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
  Behalf Of George McKovich
  Sent: Friday, February 02, 2007 7:27 PM
  To: 'John J. Hertog'; Chrysler300@xxxxxxxxxxxxxxx
  Subject: RE: [Chrysler300] Tires

  John, Fern and all...
  My understanding, which may not be totally correct, is that Road Force
  Balancing simulates the way the tire actually meets the pavement when doing
  the balancing. It is done on a machine by Hunter called a GSP9700. They have
  a webpage at: http://gsp9700. <http://gsp9700.com/> com/

  There is a link in the upper right corner to locate a dealer near you. I had
  mine done last year and Rob Kern had his done last fall. He related to me
  the same result I had... Just a whole world of difference. Maybe Rob wants
  to chime in and add to this discussion. ROB???? 

  It cost me about $100 here in Idaho because they don't have any competition
  but Rob only paid about $50 in OK.... I guess there are several dealers in
  his area. I think that web page will help understand it and if not, you can
  locate a dealer and give them a call for a better explanation. I would
  certainly do it again on the very day I get new tires.

  George

  -----Original Message-----
  From: John J. Hertog [mailto:crossram@optonline.
  <mailto:crossram%40optonline.net> net] 
  Sent: Friday, February 02, 2007 5:14 PM
  To: 'George McKovich'
  Subject: RE: [Chrysler300] Tires

  Hi George,
  What is "road force balanced" and where does one get that done?

  John 

  -----Original Message-----
  From: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com
  [mailto:Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com]
  On
  Behalf Of George McKovich
  Sent: Friday, February 02, 2007 6:59 PM
  To: 'Bill Leahy'; Chrysler300@ <mailto:Chrysler300%40yahoogroups.com>
  yahoogroups.com
  Subject: RE: [Chrysler300] Tires

  Bill....
  I have cokers on my 300C coupe and now have a little over 14,000 miles on
  them in the past two years.... much of that was highway miles on two lane
  roads across Idaho, Nevada and Arizona. I have have no problems other than
  one of them was a bitch to balance. I always check my tires pressure before
  setting out on any trip outside my local town.... I think inflation is very
  important to good performance with them. I finally had all four "road force
  balanced" and they run smooth as can be now. From my experience, I would buy
  another set when they are needed. I also purchased 3 other sets of cokers
  for pickups and a 58 Desoto and never had any problems with them.

  George

  _____ 

  From: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com
  [mailto:Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com]
  On
  Behalf Of Bill Leahy
  Sent: Friday, February 02, 2007 1:03 PM
  Cc: Chrysler 300 Club
  Subject: Re: [Chrysler300] Tires

  basket case bill is now taking a survey regarding tires before i purchase.

  simply...are you happy with coker tires?

  simply...are you unhappy with coker tires?

  please reply to me alone.

  i will protect all names and only publish the results if anyone cares to
  know.

  billllll in kennewick washington where the sun is shining today.

  [Non-text portions of this message have been removed]

  To send a message to this group, send an email to:
  Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com

  For list server instructions, go to
  http://www.chrysler <http://www.chrysler300club.com/yahoolist/inst.htm>
  300club.com/yahoolist/inst.htm

  For archives go to http://www.forwardl
  <http://www.forwardlook.net/300-archive/> ook.net/300-archive/
  Yahoo! Groups Links

  [Non-text portions of this message have been removed]



   

[Non-text portions of this message have been removed]



To send a message to this group, send an email to:
Chrysler300@xxxxxxxxxxxxxxx

For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm

For archives go to http://www.forwardlook.net/300-archive/ 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/Chrysler300/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/Chrysler300/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:Chrysler300-digest@xxxxxxxxxxxxxxx 
    mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    Chrysler300-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/