wow this is pretty funny, right now a couple of buddies from school are kinda slowly in the works of building a jet/turbo go cart. They got a HUGE friggin turbo off of a semi, and have been looking around the internet and found people that have done it with smaller turbo's, and they are kinda planning things out and trying to contact the others that they have researched. From what they've found so far this isn't going to be very expensive at all. But then again you're planning on using a motorcycle engine on your cart so I'm sure it will be more expensive.
