Autocross - choice of wider wheels or lighter wheels (same size tire) any difference

[HAHAFiST]

A bit random, and I'm certain they don't need rings, but I have the 16x7 Team Dynamics in 4x108, I think 42 et. Based on how they fit on the hubs it's really tight tolerances... but I'm getting speed wobble around 85-88+ mph. Can anyone confirm?

 

[Intuit]

Autocross - choice of wider wheels or lighter wheels (same size tire) any difference

The old saying "spinning ain't winning" is generally true.
My assumption is, depends on where or if you're breaking traction.
If you're where you want to be tire wise and ain't really breaking traction with no plans to bump torque then can afford to go lighter.
If you're breaking traction and sticky is too risky, then go wider.