What is the fatest street legel DR you can mount on a 1993 Z28? Is it 315 or 345s?

 

you can fit either on a f-body. and obviously a 345 is wider, so....

however depending on what size wheels your dealing with, it might take the "right touch" (as he holds up his baseball bat) to make them work. thats typically the case with large diameter wheels.

 

I used to run 315/35/17 DR's on ZR1 wheels on my Z before I got ET streets. That is just about how big I would go with DR's. If you REALLY want traction get slicks. It's a night and day difference. My first 6k launch on slicks scared the beejeezus out of me