im new to rx7s, but im looking into getting a 93^. ive read that the problem with the rotary motor is that the stock fuel management cant handle many mods without detonation, so what would be your advice on make an rx7 safe and efficient with mods like an intake,turbo uprgrade(maby),downpipe,exhuast?

 

I suggest not messing with it, and just keep it in good running condition. If you must make modifications, then have a professional do it. If you want to use your car as a guinea pig for experimenting and learning how to work on cars, that's great, but you should also expect a lot of problems when things don't go as you planned.