what would it take (engine wise) to convert my engine from a 90 S5 vert to a turbo motor?
could i keep the housing? would i have to get new rotors?

 

do you want to turbo the n/a?

 

ya, im gonna be rebuilding it and im trying to decide if instead of payin 5g's to have someone else rebuild it to non turbo or would it be the same for me and my mechanic friend (who is a guru of rotors) to rebuild it into a turbo

 

well i suggest just doing it on your own.

and if you didnt know there is a difference between the turbo 13b and the n/a 13b.

turbo has 4 ports.

n/a has 6. the extra 2 are auxillary ports.

 

Your mechanic friend will know what to do. Search for the NA to turbo threads and you can find some really good write ups.