i have a 93 10th annvsery edtion, it's an automatic. In that model it was a lx motor with ex body. Now i have a new 92 ex motor from nippion.
*perviousely on my old motor when i was goin 70mph rpm was @3k
*now with the ex motor when going 70mph I'm @3.25k rmp

what going on? is it the ecu or the jpec auto tranny?

OR is it because all ex-tranny had over-drive and in my car i don't have one that's why when i'm going 70mph i'm my motor is running @ 3,250rpm?

BUT MY CAR DRIVES GREAT... I'M JUST CURIOUS

 

It's not exactly clear if you changed the engine and the transmission. If you did change the tranny, it most likely has different ratios. If it's a JDM engine, it should be all sorts of different than what was sold in the States in '92-'93.

 

yeah i also got the tranny with the motor from nippon, is that why it's alitttle higher RPM when i'm going 70mph?

would it help is i got at ex ecu or are they the same?