I just don't understand why you wouldn't just boost your y8...
It's already there and for the cost of JUST the B swap you could give it a pretty decent build WITH the turbo...
you'd have plenty of power for what you want and it would cost WAY WAY less then buying an entirely different engine and boosting that...
have you seen this over at h-t?
http://www.honda-tech.com/zerothread?id=267641
You could run 18 psi DAILY on your otherwise STOCK y8... I think you'd be handing n20 and kit boosted b18's their ass'.
I have all but decided I'm going turbo on my z6 with 185k miles on it...
I'm gunna shoot for getting it done this summer...
I was avoiding it because I didn't wan't to go the "cheap" route... but IMO that's the better way... it's not ghetto as long as you tune it well and just because the parts are affordable doesn't mean they suck...
Hopefully my junkyard set up shouldn't cost me more than 400 bucks... and that SHOULD be on the high side.