Wow, I didn't think that idea would get so much discussion... Now I'm gonna have to build one... Just to give the doubters a big "fuck you". Lol. Seriously, I know it's impractical because of the heat, but what about this bike is practical in any way? Having the turbo sticking out the side is still gonna get hot. I just figured it'd make the plumbing nice and short, plus get it away from your legs. And I pictured something like an old p51 mustang, with the exhaust exiting from the side of the "tank". Cool, no? Of course, the point is moot if you have no other place to keep fuel... Saddle tanks?
No worries, I wouldn't want anyone to build something based on my ideas instead of their own. Where would be the originality?
As an aside, the old ELF Hondas ran their exhaust over the top of the engine, and they worked in an endurance racing environment. No, they weren't turbo, but that's still a lot of heat. If they found a way to insulate the rider from the heat back then, it's possible.