Disappointing track results...

YES you can mount a 275/40/17 on a 8.5 rim. It would NOT work for road raceing as the tire would roll over WAY too much around bends, but for draggin, if it clears the fenders, everything would be fine. If you check the tires spec sheet, you will see that it calls for a 8.5-10.5 rim. I used this combo on my 91 stang for the strip, aka 275 BFG DR, on a ROH 17 x 8.5. Worked great at the drags, was quite the riot on the road course, aka I have pictures of it rolling over a few inches left or right depending on which way I turned. Just had to try it, but alas it REALLY didn't work, at Nelson Ledges.
See yeah
I have yet to run my c55 at the track. I ran my caliber at the track, and it ran 13.7 - 14.3 and the c55 on the street walks the caliber every time.
Mike







