Originally posted by BoBimmer
So what year did the 325 engines start having Vanos? Also it looks so far like I am going to be buying a 1998 3.2 M3 engine! This is an OBDII I am slowly learning BMW but i need to know what i have to do to make this OBDI? Is this a good engine for my car, or would a regular 325is engine be better?
the 325i engine (M50) is a lot easier to swap in, since it is OBD1.
the 3.2L M3 motor (M50B52) will be just a bit more complicated at first, because you need to swap the intake manifold, injectors, computer, etc...you can use parts off a 325i E36 just because they are easier to find...except the computer, u must have it re mapped to the M3 spec for the 3.2L. When swapping this motor, you will also need the E34 oil pan from the 525, i think 525.
Vanos started in the 1993 motors, i think only the 6cyl though and 8cyl. Of course the 3.2L is better than the 2.5L..theres no replacement for displacement! plus, it just takes a bit more work but hella worth it.
Have you found a tranny? if not..you can use the stock E30 325 tranny..it bolts right up, plus it actually gives you better gas milage then the stock M3 does beleive it or not.
Good Luck with the swap!
p.s. i noticed u want apex springs..i have them on my bros car. Please dont get them. lol, they suck, they're soft, and they sag like grandma's tits. (yes, that low..)