Are the any differences between the n/a 20b ecentic shaft and the turbo 20b ecentric shaft.

 

theres no such thing as an NA 20b

 

I think he might be thinking the race 3 rotor... aka 20G (Don't quote me, its been a long time since I heard about the race, NA, 3 rotor).

Far as I know, the new Mazda 3 rotor Le Mans car is same as 20B turbo engine except they put in high compression rotors.... So, to answer your question, Yes, its the same E shaft.