My "top secret" not-so-secret project this winter has been my naked-biked Hayabusa. The bike was disassembled and the engine completely overhauled with the heads opened up and new big bore lower compression pistons installed in anticipation of forced induction. The FI has been remapped and larger injectors and higher capacity fuel pump supply the added fuel needed for the pressurized engine.
The turbo is not the outrageous stupifying Garret large turbo system made famous by the "Ghost Rider" in Europe, but the smaller, faster spooling, lower pressure Mitsu TD05 16G. With 9psi of boost combined with the enlarged displacement, the bike is expected to dyno 330-340RWHP. You can install the turbo on a bone stock 1300 engine without reducing compression and even using stock injectors for 280-290hp, but I figure "go big or go home."
(the bigger Garret with more cubes and all the goodies will lay over 500hp at the rear tire, but the cost goes up by 4X, ouch...)
The stock 'busa transmission can handle the power, but adding a billet output shaft is a good idea once 300hp is exceeded. The fast spooling turbo engines benefit greatly from a wider ratio transmission (the engine revs so fast it's almost insane trying to shift and keep it at WOT) but that is a pricey bit that wasn't in the budget.
With the bike strewn all over the shop and spring like weather, we've been thinking about putting it back together. Needs insurance and a plate.
The first question from my agent: "has the motorcycle been modified?"
"Yes"
"Sorry, we won't insure it."
"Not even basic PL/PD?"
"Absolutely not."
Turns out that even the Facility insurance ($$$$) can say "no" if the bike is modded. I used to ride and insure modded sport bikes all the time. Seems the world has changed, and not for the better.
The search for insurance begins...