2JZ FTMFW.
One of my friends is droppin an RB27 with twin 3037's n his S15. been building the car for a year and a half now (Iraq tour slowed him down). Like totally building it from an empty chassis up almost totally fabbed. Check Zeroyon if you are interested. I don't wanna spoil your thread with pics of it. But you may get some knowledge from this now over a year long thread.
Fuck here is the Link
http://www.zeroyon.com/forums/index.php?showtopic=8391