[urq] tires and premature aging

[Steven Murray]

Most tires have specs on allowable rim sizes.    If a manufacture says it's 215 is good for 6 to 7.5 inch rims,   in theory you should not put it on a 8 inch rim.  





On Monday, January 27, 2014 2:02 PM, "Schaible, David" <David.Schaible at jrspharma.com> wrote:
 
Why is the 215 width too narrow for the 8" ronals ?  225 would be better, agreed, how about unplugging the speedo transmission box for a few drives and use gps for a speedo to correct for the premature aging...... I wouldn't worry about aging you would need to put a lot of miles on the car to affect the value, especially since it's not original and not a 20v. 100k miles shows up as 105K, big deal.  That would be 10+ years of driving for most urq owners.   But yes, it would be nice to have an off the shelf perfect solution......i'd like to find some 15" wheels to fit my f-150 so I can get super deals on mud terrain tires for it. 

David Schaible
JRS Pharma LP
2981 Rt. 22
Patterson, NY 12563
845.878.8343
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-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf Of Tony Lum
Sent: Saturday, January 18, 2014 1:30 PM
To: urq at audifans.com
Subject: Re: [urq] tires and premature aging

Forgot to copy the reply to the list
+++++++++++++++++++++++++++++++++++++++++++++++++++++


Hi Lino,

My drivetrain is now different from the original. When I  swapped the engine from my '87 5kcstq, I also swapped the 016 transmission.  Instead of .78 5th gear, my 5th gear is now .73.

By
undersize, I'm referring to the 205-60/15 tires that came stock on the 5kcstq.  According to the 1010 tire calculator (205-60/15 stock):

215-50/15 = -4.95%  undersized, no tires <--This is causing my speedometer to run faster hence the premature aging.
225-15/15 = -3.35% undersized, a few tires
215-60/15 = +1.9% oversized, many tires available

Of
course 205-60/15 would be just right but are too narrow for the 15x8 Ronals.  I would need to switch to 15x7 Fuchs, but I love the look of the Ronals.

Tony
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