I just found a set of barely-used stock GT350 (non-R) wheels relatively cheap, and I plan to put a set of Hoosier R7’s on them for my track days this summer. Hoosier makes the R7 in both 35-series (295/35R19 & 315/35R19) and 30-series (295/30ZR19 & 315/30R19), for nearly the same price. (The 30-series tires are actually slightly cheaper.)
I’m leaning towards the 30-series tires, in part because they should have a slightly stiffer sidewall and in part because the smaller diameter will effectively give the car slightly shorter gearing, which should in turn help me take better advantage of the GT350’s high-RPM powerband. (No risk of running out of gear at my local track.)
Curious whether anyone here is running 30-series tires on factory GT350 wheels, and if so, whether you have anything good or bad to say about that combo.
I’m leaning towards the 30-series tires, in part because they should have a slightly stiffer sidewall and in part because the smaller diameter will effectively give the car slightly shorter gearing, which should in turn help me take better advantage of the GT350’s high-RPM powerband. (No risk of running out of gear at my local track.)
Curious whether anyone here is running 30-series tires on factory GT350 wheels, and if so, whether you have anything good or bad to say about that combo.