[eurobeaner]

i would not boost a d15... thier rods are VERY small... prolly wont take more than 5lbs of boost... a d16z6 can handle around 8 lbs of boost.... if its already wired for vtec, it wouldnt be hard at all to swap in a d16 bottom end if you already have the head, if not its even easier to do itall at once, it took me and a buddie 5 hours to completely take his motor out, and swap a new one ... you can pick up a d16z6 motor from your local import yard/junk yard for around $500.... use the tranny you already have and itl be a nice little motor to boost.