Yes, no, and not really.
First, you can put the resistor pack in. However, if you are really running at top speed, it is not good. By putting in the resistor it fools the ECU into think that the bike is on 5th gear and not 6th. The ECU adds extra fuel based upon pressure from the ram air system. This will make the bike run slightly lean up top dropping power. Or, you can add extra fuel up top getting the bike to run rich in all gears. Really, 186mph or 194 (or 189 or 192 or any number you wish to believe that an unrestricted busa Busa was tested at stock) is acedemic. In fact, where bike can drive fast (Autobahns) I have seem then normally under 160-170kmh and get passed by cars. It just not comfortable to drive that fast for long.
As far as a 1000 with nitrous, big bore, cams, etc. Yes they are fast and can beat a hayabusa. I had an original GSXR11 (the 400lb one) that had all that stuff done too it. It would kill a hayabusa. I was using 4 22hp jets (so +88hp). The advantage that a hayabusa will always when drag racing and straight line have is 1) displacement 2) wheelbase 3) Aerodynamics. A short wheelbase roadrace bike wants to wheelie. If you wheelie, you can't get all the power down. There is a reason why my GSXR11 had an 8 inch over swingarm. Nitrous is not limited to a 1000. Neither are cams or overbores. I am sure you don't want to tangle with a busa that is sprayed or turbo'ed??
My biggest problem with drag racing is when I was running the GSXR11 I was scrawny. I weighed in at 135lbs soaking wet. Age has caught up to me now and another 30lbs. 30lbs hurts on a strip..and a wife that says its too dangerous. I was barred from motorcycle racing after wrecking my RS125 very nicely at Mead. Now I am just lucky to be allowed to have a bike that sits in the garage.
-Dana

