Are the centers for both the factory 15" star wheel and the 15" swastika wheel (does someone have a better term that last one?) the same

The "Star" wheels that you are refering to are called snowflake wheels and were only available on the '81 ZX Turbo. In good shape they are getting hard to come by, I have a set and have always loved the look.

Unfortunatley, the centers from the swastika wheels will not fit, they are just a bit too small.

I have been searching for some centers forever now, you can get replacements from motorsports, but they are SPENDY.

If you need information on Motorsports, let me know, I can get the info for you....

Have a great day....

Brian