Treaded to Slicks

[reisertracing]

Being new to CF, what adjustments do I need to make to the car to go from Vintage treaded tires to slicks?

Thanks

[Lotus7]

Assuming you are switching to scca legal slicks, which are radials, as a minimum you'll want lots more camber, like 3-3.5 degrees vs 0.5 degrees, and you'll also want to check ride height due to diameter differences. Radials want slightly higher hot pressure.
Secondary changes once you've driven it may be spring and bar rates.

[DanW]

Being new to CF, what adjustments do I need to make to the car to go from Vintage treaded tires to slicks?

Thanks

What tires do your local groups require? Most spec Hoosier R60 or American Racer (Mcreary) bias ply.

[AlanVDW]

NEDIV CF Rules are: "Tire choice is restricted to three (3) racing slick options: Goodyear 600,Hoosier 60, American Racer AR133."
I believe all are bias ply.
I went from slicks to the treaded Hoosier VFF (due to cost), which are legal for CFF in the northeast. If you run on the SCCA spec radial, your in FF.

All I did was take out the camber to run the tread VFF tire. Just add camber and you should be OK to run slicks.

[Jake King]

NEDIV CF Rules are: "Tire choice is restricted to three (3) racing slick options: Goodyear 600,Hoosier 60, American Racer AR133."
I believe all are bias ply.
I went from slicks to the treaded Hoosier VFF (due to cost), which are legal for CFF in the northeast. If you run on the SCCA spec radial, your in FF.

All I did was take out the camber to run the tread VFF tire. Just add camber and you should be OK to run slicks.

There are also some differences in tire diameter. I believe the front treaded tires are ~7/8" taller and the difference in the rears are marginal. May need to adjust your front ride height to match the rake you run with the treaded tires.