Five year old article on the "15 inch tire problem"
Do we dare temp the world of bias ply? Supposedly, Hoosier Street TDs are a bit more forgiving than the stereotypical bias ply tire and at least they’re a performance compound. Still, it seems wrong.
Tire, Hoosier, Racing, 275-60-15, Street TD, bias ply, 27.6'' dia.
Tire, Hoosier, Racing, 225-60-15, Street TD, bias ply, 25.8'' dia.
Yeah I dunno about that. I looked up the last time that Aussie car was talked about, we basically covered all the same drag radial ground as here. As for the bias ply's, per the the Australian Trans-Am series rules "A Hoosier cross-ply tyre is used on all cars
to keep them sliding through the corners, and are wrapped around maximum 15” x 8.5” wheels". The old link I had to the Australian Trans-Am series rules is dead, although I know they still run those Hoosiers as part of the deal. Here's the old thread
Road Course "Trans Am" Dart-- does anyone recognize this car? What tires????
But that also kinda puts to bed the idea that car is competing on those tires, because if it's competing in anything over there it's not running that set of tires on the track.
It also highlights the problem pointing to certain race series for performance choices. The Aussie trans-am stuff is awesome, but the tire choices are specifically intended to limit performance and keep it entertaining. Like restrictor plate racing in NASCAR, they don't do it because it's faster.
“NOT INTENDED FOR HIGHWAY USE” ?!
Yep, not DOT legal. Track tires only. Funny they're called "street TD" though if they're not street legal.
