ok im about to supercharge my motor and im thinking about porting it while im at. so i plan to just put all new seals. so i want to know will the rx8 rotors work in our motors. i will also use the rx8 E-shaft. anyone know the anwser.

 

i wouldnt recommened using rx8 rotors.

i mean, yeh they are light weight en all but the only downfall to that is, the rotors arnt as durable as our rotors.

rx8 rotors will crack in time.

 

I dont know about them cracking but they require machining to fit our depth of apex seals. They are also 10:1 compression which is not ideal for a supercharged motor. you also need to use rx8 sideseals, which have excessive clearence unless you order the uncut ones from mazdacomp.

 

hmm so it doesnt seem worth doing ill just use the E-shaft

 

An independent company, I think Racing Beat(?), put them in a 13B N/A and didn't notice any difference in performance. They're made for the new exhaust port location on the Renesis so they need some work to go in a 13B.

Go with the 13BT rotors. You don't need high compression to make power. You have fun alternative means to do so.