I am actually leaning towards a supercharger to be honest.
The Z has oil temp issues already, and I am not sure if I feel comfortable routing already hot engine oil through a turbine. It just doesn't sit well with me.
Also, I feel a supercharger would be a little more predictable on the track than say a twin turbo. I'm not saying that I would get any FI just to be faster on the track, but if I wanted a compromise between a street car and a track car, a supercharger just seems more suited to me.
Not to mention, I love the simplicity of superchargers.
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