Originally posted by goodspeed
can i change the piston and sleeve of a 3port mt12 turbo with the piston and sleeve of novarossi 5port S5 RACE engine? both of the engines have the same stroke and bore... anyone have ever tried it before? how was it? or any suggestions?
Yes, according to Motorman, you can. As long as you use back the MT-12 con rod (long version) with the new S5 sleeve and piston on the MT-12 engine. The MT-12 is a long rod type while the S5 is a short rod type engine.
I don't have experience doing this but generally, short rod engines have higher revs while the long rod type are better on the lower end.