I would guess anyone w/150 RWHP for a normally-aspirated HD probably spent close to $10K to have it that way. Then there are power-adders:
http://www.hdforums.com/forum/touri...50hp-129tq-fuel-moto-bagger-project-bike.html
As a few of you know I have been working on a bit of a project bike over the last couple months. Fuel Moto has purchased quite a few R&D bikes over the years both Harley and metric, and I have "personalized" several of them as we worked with them and I also built a few of the Sportbikes. My 271 Hp turbo GSXR 1000 was in Cycle World magazine a couple years back, and we also made over 200 Hp with our latest Hayabusa with just bolt ons and tuning. Anyway, since we purchased the white/turqoise Road King that we used for much of our 2009 R&D, product photos, etc I really took a liking to this bike from the very beginning and now that we have several other R&D bikes I wanted to add some mods that make this Road King really perform. I love the new frame design and other updates and know this bike really has potential. I also wanted to do something a bit different. Forced induction is something that I have worked with in turbo and supercharged automotive applications for quite a few years, and have also tuned many turbo and supercharged bikes on our dyno. Knowing the large gains to be had I decided to do a Procharger for forced induction, and chose to do so as the blower unit is self contained and very reliable, they sell a complete kit (well almost) eliminating the need for self fabrication, and most of all this blower is capable of a HUGE amount of boost. I am going to get this thread started with some basic information and will go much further into detail as I add to it, consider this bike a work in progress. The bike will have engine as well as chassis mods, not really sure what else I guess I will see where things go. For reference this is a 2009 Harley Road King Classic. It has Wood TW6-6 cams and the rest of the motor is completely stock and has never been apart. For exhaust it has the Jackpot 2/1/2 stainless head pipe with Jackpot Dyno Tuned mufflers. I added the Intercooled Procharger which makes 11 lbs of boost with a very good amount of tuning time it is making 150Hp/129Tq on pump fuel with both conservative fuel mixure and ignition timing. With 100 octane, leaner mixture and more agressive WOT timing it should make closer to 160Hp/135Tq. I could also easily reach higher numbers if I reved the motor higher because unlike a naturally aspirated motor this boosted motor makes power right to the limiter and wants to keep going. I am currently limiting the overall output as at 150Hp I am certainly near (or beyond) the threshold of many of the stock parts, primarily the crankshaft and valvetrain components so I choose to let it live for a while with these stock parts and only rev it to 6200 RPM.
This bike was completely tuned start to finish with the Dynojet Power Commander V and runs absolutely perfect. Tuning a setup like this is no small task considering the 69 lb hr injectors are more than double the size of the stock injectors, not to mention the 11 lbs of boost. The PC-V utilites were very handy and truly bring out the flexibilty of the product. I also utilized the Auto Tune module that was on the bike for the past year by implementing the AFR's that I tuned the map to which will maintain my tune in all conditions. The fuel trims I have logged so far are within 5-7% of the base map which is extremely accurate. I will elaborate more on the tuning end of things as we progress as well.
End of copy.
My favorite blown bike from last century is Mark Moisan's FL creation GSXR1100 he took to Sport Rider's desert tuner shoot out where he turned a top end of 229 mph at which point the carbs blew-off the intake manifolds! He won the Daytona horsepower shoot out several times. His wife could ride the bike no problem w/the boost turned-down. She often did to bike night at Fuddrucker's restaurant in Ft. Lauderdale.
Sure the Hyabusas make big numbers now, but he had a real backyard creation that spanked everyone else early-on.