12abridgeport

When i was putting my motor together i put a rear rotor (from another 12a that i had laying around)where the front rotor is supposed to go. So i have two rear rotors in my motor. Got about 40 miles on it and some idling time with no problems.

I was looking at the mazdatrix website and noticed they have different part no. for front and rear rotors. So my question is, are there are any differences? Should i be worried?

The 12a's were of the same year from the looks of it. Oh and i'm also using an e-shaft from it too.

mattrx7N/A

iTrader: (2)

Rotors are balanced to the front counterwieght so there may be a slight difference but you'll probably be ok.
I wouldn't recommend any sustained high rpm use though.

wwilliam54

as long as they are the same letter
they should be fine
if not they will give higher bearing loads and the e-shaft bearing will wear out alot faster

12abridgeport

Yeah i did check the letters and the letter that i put was the same i had on my old front rotor.

RotaryMotorDisorter

What about the tub shape on the rotar faces? I think one would end up being backwards. Not sure how that would affect performance. I might have to do the same thing if i wanna rebuild this 12a.

n.taluckder

iTrader: (9)

Now is this the same for 13b's?

Jingkun

iTrader: (4)

This man is a god at search ^^^

j9fd3s

iTrader: (3)

no, except for the Rx8 engines

DivinDriver

iTrader: (15)

Rotor-face tub shape is non-symmetrical in some years of the 12A.