Chamele03

I was just readin up on the rotary after an imbarassing insedent not to long ago, and was wondering why Mazda went back to a 12a, after haveing a 13b in the rx2/3, only to go back to the 13b in '84?

Just wanted to ask it was kinda wierd to me

Rx7carl

Prolly fuel milage issues and emissions laws.

diabolical1

iTrader: (3)

Rx7carl is right ... and the 13B wasn't in the Rx-2 or Rx-3 just the Rx-4, Cosmo and Rotary Pickup

851stgen12a

Also the 13b's from the older cars were 4ports rather than 6 ports, correct??

Gatorgunner

i was to understand that the 12a was a cheaper engine to manufacture and mazda wanted to make a cheap affordable sports car.

Manntis

nope, it was the fuel economy and emmissions, as said above.

Pedestrian X

Manntis and carl are right, it was because of fuel ecnomoy and emmisions that they started off wiht the 12a in the rx7's. All of the older 13bs were 4 port up untill they put them in the 84-85 SE's wich were the first 6 port 13b's as far as i know.