I'm keeping stock displacement for now, upgrading the bottom end obviously though. I may do a small amount of head work (unshrowding valves only), but other than the intake / exhaust cam swap, the Hayabusa doesn't really need work done for turbo applications, and off-throttle response tends to suffer with larger valved engines / ported heads / too high lift from what've I've gleaned from a few experts. I am on the fence whether or not to do the engine work myself at this pt - if I don't I'm going ot have Mike Downs from Downs Engineering (who is in your neck of the woods) do the work - he's built literally 100s of N/A and turbo Hayabusa for car applications (mostly SCCA sports racers) over the years....
holy poop thats no mini its a space rocket hes building ahaha
Dude your car is amazing.. That wing is ridiculous but I love itJust be sure you don't mount the wing the wrong way up or else you launch to the moon
you probably said this already but are you stroking the engine or keeping it the same displacement. Have started on my Hayabusa research and looking into the pros and cons of different set-ups.
Yeah I have good thing about Downs, need to call over to him and check him out.. He's like only 30mins away. Been looking through alot of hte Hayabusa forums and seeing what people are at. Lot of discussions on N/A vs FI. Thinking through when I eventually go with the Hayabusa set up I might go with a built block with a stroker kit bring the displacement up to 1440cc or so. Then add some NO2 for good measure. Then if that is too slow just throw on the Turbo afterwards.. Start with a nice base and then go from there.
I think you'll have your hands full with the you set up
but it will be amazing I am sure.. Will be nice to have a tame enough VTec and then a balls out Hayabusa set up. The sound out of the busa engine will be stimulating to say the least 
