Hi, Terry!

I started racing a 240 this year, and if you look at some of the old threads in the Nissan Racecars forum, you'll see some of the advice I got, including suspension setup on the Z.

The on-line sources recommended to me, particularly for parts resources, are listed on my site at: http://www.webtracy.com/Links.html

(Sorry, I don't have a bit of help to offer on the 280, but many of the suppliers are the same.)

There are also links to organizations that run track days at Sears, Laguna, and Thunderhill.

Good luck!
- Tracy