What street tires can i put on a 15" wheel that is 8" wide?

Here is what they are...

http://www.diamondracingwheels.com/pro.html


And what backspacing do i need to run on a stock 1980 RX7?

 

225/45/15 Hankook RS2 Z212.

 

How is the traction/wear?

 

They're an ultra high performance tire, treadwear 200. So they won't last forever, but it's basically the only choice in that size. You could also try a 225/50/15.

If you tell people what you're looking for in a tire you'll get better responses.

 

You told me plenty enough.

I just wanted a tire for these racing rims that i am going to put on my street car.