I need a new tranny for my 92 hb. It has a jdm d15b that runs really strong but the tranny is really limiting its potential. I hit well over 70 mph(almost 80) in 2nd gear, so what I want to know is what tranny would best suit this engines potential. I figured a ex or si tranny, but how do I know that is what I'm getting. Is there any serial numbers or markings that I can see to identify the tranny. The current tranny has a p20 on one bar code and a s20 on another that I can see. BTW the current tranny is hydro. In the future I may want to turbo/super charge. Thanks in advance for any suggestions.
Ken