Hey guys,
It's not the horsepower you feel the need to increase here. It's the torque! Torque is the real measure of a hipo motors aptitude, hp being a nice number to brag about but not the number one telltale of an engines performance.
But you all knew that, right?
My Kawasaki 900 circa 1975 advertised 65 horses at the crank. In all reality that was probably at the rear wheel. Ninja 600's advertise more than that old Z1 did in horses but not torque. I later dropped a 1150 piston\rings and liner kit with cams and kerker 4 into 1 header, 29mm smoothbore carbs\k and N air filters and a martek 440 electronic ign.
The beast had so much compression, I couldn't turn it over with the stock electric starter, so I removed it and kick started there after. That moto dyno'd at 125 ponies with 70 ft. lbs of torque. It ruled the hiways and biways of San Diego county until I finally sold it to a drooling Kawasaki dealer who probably got killed on it. As any oldtimer can tell ya, the engine tech advanced a lot faster than frame and suspension tech back then. Talk about a scary ride! lol.
Anyways,
Look for torque increases, forget the horsepower numbers. Unless you can figure a way to get our motor to redline around 4k higher than it does, hp is an empty measurement. What you feel when you ride a moto like the vtx is all torque. More torque equals more pull, and when you get a wide torque band, you get a powerful yet tractable motorcycle. HP is measured at it's peak and that is a very thin spot on your rpm scale, you wouldn't want to live there if you could. :shock:
btw: The cheapest way to a hundred if anyone is still listening, is of course a supercharger. No need to wait for R and D or corporate types to get around to our bike. They make em for Harleys and it would just be a matter of fitting up the custom headers and making sure you selected the right size.

I just realized that you would also have to figure out how to drive the compressor, a advantage the Turbo has over the Super is of course that its self driven by exhaust gas. Turbo lag on a bike sucks, no pun intended.
Some things to think about, power wise, anyways. :wink: