Drag racing is lame. the end. You should just take that money and buy a huge sound system and a MAACO paint job, cause all you are going to do it cruise it anyway. HAHA. j/p. Well, not about the drag racing part. It really is lame. There are 12370235824080807423408 ways to make a CRX fast, and all those engines you mentioned are good platforms. I'd go with a b16, just because they are a dime a dozen. Parts are actually cheaper than the b18 engines. Why? Because the b18s came in acuras, and the b16's came in honda, and acura will rape you a lot worse for factory parts than honda will. I know, I've been there.