[DeTomaso] Tire advice

[Tomas Gunnarsson]

IMO the whole discussion about matching front and rear tires to balance
the car is pointless. The tall sidewalls of the 50 series rears will
always make the rear sway more under side load.

Tomas



<-----Ursprungligt Meddelande----->

 	 	From: David Nunn [dnunn at telus.net]
Sent: 14/2/2014 9:25:24 PM
To: detomaso at poca.com
Subject: Re: [DeTomaso] Tire advice 



Chris,

You didn't mention "which" Toyo Proxes you have (R-888, RA-1, T1R, 4,
etc.) but it's likely a P-Zero would be a complete mis-match from a
rubber compound/tire construction standpoint. 

As a general rule-of-thumb, you shouldn't run different makes of tires
front and rear. It can create huge handling balance issues. In fact, you
also shouldn't mix tires of the same brand, even if they are of the same
rubber compound and load/speed rating. I wanted to mix Michelin PS2
run-flats with regular PS2's. Both tires had identical specs and even an
identical tread pattern. The only way you could tell them apart was one
had "ZP" on the sidewall. Both the Tire Rack and Michelin told me not to
mix them. They said, if you're just "putting around" you'll never have a
problem but if you start to drive hard; really hard, the imbalance
created by running different tires can be dangerous. Perhaps they're
just covering their asses, in the legal sense, but is it worth the risk
just to save a few hundred dollars? 

As far as tire age is concerned, some experts attribute the Paul Walker
fatality to the fact the Carrera GT he was riding in still had the
original tires, which were approximately nine years old at the time of
the crash.    



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