Honestly, the big turbo thing has gone around and around like a ffing record. Some cannot stand a big turbo (or do not want one) and some insist that there can't be one big enough (well, sorta). Let me tell you a story about AJ (DSMStyle). The other weekend when we were over at their place I let him take my 2G for a spin (since his nickname is fucking DSMStyle and he doesn't have a DSM, I figured I'd help push the issue a bit!
). He was insistant on wanting a smaller turbo on the car, wouldn't shut up about it. After the drive and a few mind blowing (or skirt lifting?) runs through some twisties, he was absolutly certain that the car was awesome as-is.
What it comes down to is trade-offs. More lag = more power. I LOVE a 16g'd car (dsm or evo). The car is sporty and fun! It makes mere mortals into rally drivers, makes city-scapes a playground of fun loopdy-loops and back roads. Then come the big turbos. Whether it's a simple 20g or a 600++ hp turbo, there will be more 'lag', and there will be more power. I was really wondering really how drivable a gt35r'd car would be in every day driving (I drive 50+ miles per day now). I have to say, I absolutly love it. Yes, it is a comprimise. But the dynamics of that big turbo are such that it is VERY streetable. The car has decent torque down low, as it makes 5-10 psi between 3000-4000rpms, but up top it *really* kicks ass.
Now, a note on the term 'lag.' Let's talk about this in another thread, but know that I would (and hopefully will) gladly strap on a gt35r onto my evo! This car ROCKS stock, so I really think it can only get better with modification. Honestly though, the car is so solid and well balanced (especially after a simple MBC @ 19psi-ish), that I feel as though I could happily invest my money elsewhere and drive it as it is for a long time.