Hey, as some of you know I have a crx now, with a puny d15b2 with dual point. I can't decide what engine to pick as a replacement. My choices are, sohc zc, dohc zc, and d15b. I will be doing it myself, so I would rather choose the easiest, which would be sohc zc. I know on all 3 builds I'll need to swap from dual point to mpfi. Cheapest motor is probably the sohc zc but I'm looking for your guys input on all 3 engines performance. With the d15b, Ill have to do dpfi to mpfi, vtec, and obd0-obd1 conversion harness. dohc zc ill need to do dpfi to mpfi and I think something bout crank sensor or something. I'll probably go all motor. I'm somewhat satisfied with my ej8 that I'm selling performance wise, and I figured all 3 motors are bout the same but it will be a lighter chassis. I just want your guy's opinion on all 3 motors.