G-Force has been a name in US Motorcycle Roadracing for over two decades. In these pages, you will read much about our history and our variations. But, in more detail, you will follow our progress in the development of one of our favorite motorcycles.
With this project, we are developing a late 1980's designed Honda NC-30 (VFR400RR). Over the course of the last 6 years we have created a bike with some of the most state-of-the-art technology inside, and out. Our performance numbers are reaching those of some of the factory MotoGP teams on a budget of about 1/100 theirs.
The original goal was to get over 90hp at the rear wheel (~200hp/liter) from a 450cc variation of the base motorcycle. Considering these motorcycles come with less than 60hp stock, that's more than a 50% gain in rear wheel horsepower. So far, we have reached over 88hp while struggling through many hurdles in product design, quality and base-model engineering limits. Follow what we have done to overcome these hurdles and move forward - only to find the next hurdle.
With each problem we have encountered, we have had to work with experts in the industry to redesign most of the internal components of our little engines. The heart of our engines now only bear a small similarity to the original stock components as we have had new pistons, connecting rods and billet crankshafts made. We are now moving to fit special carburetors and, for one bike, are converting to fully computer-controlled ignition and fuel injection. We are also experimenting with ways to reduce friction and increase reliability in all parts of the motorcycle.
With these new modifications we have -on paper- figured that we can raise our expectations even higher to reach over 100hp at the rear wheel. That would be over 220hp/liter. Not quite the 270+hp/liter region of the MotoGP bikes, but we also don't have the $millions invested.
I would like to personally invite you to watch and share as we try and reach our performance target. This Blog will be constantly updated and revised as a continuous "Work-in-Progress", so please check back often and be sure to review all of the pages each time for changes or new information.
--Enjoy!
Mike Norman
To hit 100hp with a motor that size without a huge budget is no small task... good luck!
Posted by: Chris | October 30, 2008 at 09:42 PM
Agree. You got to have a deep pocket to get one of these.
Posted by: Parts Motorcycles | February 11, 2009 at 12:29 AM
What? 270HP. Are you kidding? The hayabusa can probably go that fast...
Posted by: Motorbike Helmets | April 30, 2009 at 12:48 PM
download your free derbi gpr 50 or GPR 125 manual at http://the-article-store.comze.com/derbi-gpr-manual-free-download.html
Posted by: Derbi GPR | September 12, 2009 at 12:20 AM