What wheel size for 944 Turbo

[race46]

I have a track car, looking for an extra set of Porsche wheels for practice days. I need 17", Looks like the 5 spoke Cup wheels will work well. They seem to come in many offsets, does anyone know which offset works best in getting the wheels out toward the fenders?

[azbanks]

Is your car early or late offset?

[race46]

its the later offset, 1988

[smudo]

To do that you need either wider wheels with the same offset or wheels with smaller ET number (or both). Original wheels are 7 & 8 inch wide with ET52. My other set is Keskin k2t wheels which are 8.5 and 9.5 wide with ET52 and they are fine with 225 & 255 (or even 285) wide tires. To achieve your goal I would use the CUP wheels with the following dimensions: 7,5x17 ET 52 und 9x17 ET 47 with 225/45 and 255/40 wheels (those are standard settings for Turbo S 944s).