Quote:
Originally Posted by CapriRacer
I'm starting a discussion thread here - and I'm hoping to move a discussion that got started when I introduced myself:
http://www.ecomodder.com/forum/showt...ires-2522.html
So hopefully this will be a bit more visible and a bit more "on topic".
First, let's define some terms:
Underinflation: Using less inflation pressure than is listed on the vehicle placard (assuming the placard tire size is being used.)
Overinflation: Using more inflation pressure than is listed on the vehicle placard (assuming the placard tire size is being used.)
Hyperinflation: Using more inflation pressure than the maximum listed on the tire sidewall.
Vehicle placard: The sticker on the vehicle that lists the original tire size and the proper inflation pressure for that size.
Agree?
Any other terms we need to define? |
CapriRacer,I appologise for the digression,however you appear to be the only "insider" we have into the dark world of automotive tire manufacturing.I would like you to address something if you will,concerning the Tire Performance Criteria,published by General Motors Corporation in the 1980s,which essentially transfered tire design away from tire makers and put it in the lap of GM.I'm given to understand that,as the largest automaker in the United States,and controlling the largest share of new car O.E.M. tire ourchases,that GM essentially transferred authority away from tire manufacturers and specified how tires would be constructed from there on out.Since Ford Motor and Chrysler were minority customers,they were forced to go along with whatever GM decided.The issue has significance to ecomodders desiring certain LRR technology,as tire makers are not permitted to manufacture certain proven LRR tires,as they were not developed by the tire companies,but rather by GM,and cannot produce said tires without express permission from GM.