im helping a friend do a swap from a b18a to a b20 out of a 93 crv. i am having trouble with the vacuum system and was wandering if any1 had those diagrams to both those engines. the car im doing the swap is a 1990 acura integra b18a original. he got gunhoe without doing the reseach and bought the b20 and now im trying to make it work. i do apoligize about this being in the wrong forum just hoping to get faster results. thanks

 

What problems are you having with the vacuum system. Vacuum lines are nothing special...any nipple on the IM will work for most anything.

A B18 non-VTEC and B20 are almost exactly the same anyway.