1970 240Z race suspension.

[racer_z]

I am building a race car that will be as close as possible to a 1970 SCCA C-Production race car, but I will be adding some modern parts in certain areas. What are my options as far as suspension setups that are available for early Z cars? Also, I have looked at several brake options, like the Wilwood products offered from ArizonaZcar. What are some brake options?

[johnc]

Wilwoods are out if you're planning on building something close to a 1970s CP car. You should get the rule book for whichever vintage group you plan to race with and make sure you're not modifying the car beyond what's allowed. You can also buy the original CP rule books from SCCA.

[JMortensen]

If you're going to do vintage racing you'll need to conform to the rules, which probably means Toyota vented setup and 79-81 280ZX rear disc in back. If you're not racing, do whatever you want. Try searching for options. The subject has been beat to death.

[johnc]

For a vintage legal brake setup the closest to the approved FIA calipers are the Toyota 4 x 4 S12W calipers with a vented front rotors and drum rear brakes. Some vintage groups might let you run a solid rear rotor with a single piston caliper (280ZX/240SX). Shocks can be single adjustable only. Coil over 2.5 ID springs are allowed along with camber plates. Spherical bearing (monoballs) can replace the suspension bushings. Fiberglass hoods and hatches only and no carbon fiber parts. Spoilers are limited to the BREe style parts. Typically wheel widths are limited to 7" wide and you can run 14s or 15s.