DeTomaso Mailing List: April 1997, Message #153
     



From: "Jim Firanzi" <firanzi@erols.com>

Subject: Tires

Date: Thu, 17 Apr 1997 22:55:32 -0400



Mike,



I address this to you because I (think) you kept the stock 7's and 8's and

are planning to run BFG Comp T/A ZR tires.





What sizes are you going to use?  Doing some calculating on my own (a scary

proposition, I grant you), with the 245/50ZR15's on the rear, the

spedometer error may be as much as 10%, and final drive ratio will wind up

being closer to 4.64 than 4.22, dropping top end with a stock 6000 rpm

motor to 140 or so.



I think the only 60 series they make is a narrow 225, which would cut that

spedo error by 50% and bring final drive back to around 4.43 or so.



The only wider rubber I have found in 15" are the Yokohama 255/45's, and

they would be even smaller overall diameter than the 245/50's.



What are your feelings?





Jim Firanzi

'72 with stock Campis