bro owns a 90 rex, convertible. Badass car, though a little heavy without the hardtop. 8k redline owns. Plus, open up the intake and exhaust, some porting...and the increase in flow makes a nice backfire *POP* as you shift at high rpms....kinda scares the civics
Parts seem to be relatively cheap around here if ya know how to work on it yourself. They are a very hot engines in general, but stock has more than enough cooling. Took it up to thunderhill not too long ago....the rotaries were the only cars that didn't have cooling issues up there.