I have had a couple of things on my mind as of late and one of the things is boost pressure. I am getting ready to drop an engine into my 91 CRX and I was wondering which honda/acura could hold the most boost pressure and that would fit in my car. The two engines I am looking at right now are b18b out of a 90 something integra and the sohc zc and was wondering which of these two could hold more boost.

 

which one could hold more boost is a less relevant question than which will make better power once boosted. You'll make more power from less boost with the B18B, and although I don't know much about zc's, the B18B is the most turbo-friendly B-series motor.