Hey, I have a 3SFE with some migrated MR2 parts....you can JUST swap in an MR2 motor complete ....just the motor with minor mods fits ....in my case the motor had a blown rod so I stole many other parts including the cpu. Also switching the car to standard (if you so desire) requires three holes in the fire wall ...you have to lay upside down to drill them but, it is easy if you plan it ahead of time. I used a metal hole saw and air drill took about 10 minutes....just line it up ahead of time....form their you bleed the hydraulic fluid ....the line already has built in clips to hold it on the firewall. The next thing is your shifter console ---It fits in the exact same holes as the original-- The cables go through a cut out already in the firewall and voila....much more response on your motor than stock auto.
Good luck, any ?'s let me know.
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