Congrats on the car! I'm hoping to buy one tomorrow. My plans are to take the JDM D15B VTEC engine that I just put into my 94 Si, and swap that over to the 89 Si this fall. Maybe with a small turbo on it. It's a great engine, but there's just no power in the lower rpms.

Otherwise, my 94 Si has 350K miles on the chassis and we just pulled the original engine out to rebuild it over the summer.