[evilC]

Interesting. The Opel GT was never known for its suspension IIRC and was an off shoot from the original Kadet design? I realise that the 'vette uses a transverse leaf spring but its the only performance car to do so. That means that transverse leaf spring knowledge is a bit specialist.
I would junk the idea of leaf springs and apply the KISS principle and use double A arm or struts that there is masses of info about. Besides do you know could fab up a custom leaf spring? also, the Opel front end looks a bit weighty - I suppose it had to hold up a front engined car with the Opel cam in-head 1900cc that was a bit heavy - I know I've rebuilt one.

For 16" wheels the easiest fitting disc size is 300mm (12") although it might be just possible to squeeze 330mm discs in. the 17" will accommodate the 330mm discs and I would run 4 pot alloy calipers front and rear. The Porsche 944 turbo setup will work quite well, is alloy and all the parts are readilly available. If your after a custom set up then Wilwood, AP Brembo etc all offer whats required. With such a one off you might consider a racing discs with alloy bells that would allow you to tailor the set up more closely as well as providing performance improvements. The 944 set up also provides for a separate rear parking brake that is very effective and better than any of the separate disc mechanical calipers.

evilC

evilC