I'm usually on supraforums and supramania, since I just got an 88 Supra Turbo. Nice to see some Z love on there. There are some knowlegable people on there, but also way to many dick heads!! Especially on Supraforums.
I've been on a lot of different auto forums and none compare to the Z community. I've owned a Z31, Z32, and now an S30 and all the forums i've been on have been awesome.