is there a turbo out on the market for a 1991 1.8l SOHC? i tried to find one but i couldn't.

 

No "kits" are made for the 1st gen pro, neither for the SOHC or the DOHC. For the DOHC engine you have the option of finding a GTX/GTR manifold and turbo or going custom. For the SOHC there is nothing, it would have to all be custom. You would probly be better off swapping in the DOHC and turbo charging that engine instead.