Viper Motorcycle Company Receives the First Ilmor Designed 152 Inch Production Engines

HOPKINS, MN – May 5, 2010 – (Motor Sports Newswire) – Viper Motorcycle Company (OTCC: VPWI.OB), a wholly owned subsidiary of Viper Powersports Inc., announced today delivery of the first re-designed production short stroke engines for the 2011 Viper build.

According to Terry Nesbitt, President, Viper Motorcycle Company, “The new engines are incredible. All engines and drive case parts are CNC machined from 6061 aluminum billet alloy. Each component piece is then hand polished by American craftsman prior to assembly. The 152 is the largest and most powerful air/oil cooled production v-twin available. In addition to overall increased performance, the new engine produces considerably less vibration and runs cooler due to the improved oil flow throughout the engine via an Ilmor designed twin scavenge dry-sump oiling system. Peak torque is an industry first massive 153 foot pounds”.

Paul Ray, President, Ilmor Engineering Inc., stated, “We have hundreds of hours of dyno testing resulting in a powerful, dependable, EPA certified high mileage engine. This is a Viper proprietary engine with state-of the-art technology. The Ilmor air/oil dry-sump scavenge system utilizes 3 oil pump stages. The first stage is for oil feed with twin stages for independent drainage of the heads and crankcase, greatly improving overall oil flow. Our unique system provides much needed cooling to the cylinder heads, well beyond conventional air cooling resulting in greater reliability. The Viper/Ilmor crankshaft uses an oversize crank pin for durability and has a unique balance formula to dramatically reduce vibration levels”.

Nesbitt continues, “We are extremely excited at this mutual opportunity. Our Joint Venture relationship with Ilmor will enable us to continue moving forward as an OEM providing a unique proprietary product designed and manufactured by Viper/Ilmor.  The 2011 Diamondback 152 is scheduled for shipment in May while our second model, the Mamba is scheduled for later introduction this summer and will also be powered by the all new Ilmor 152. With an industry first chassis and the incredible Ilmor engine, we expect our sales will continue to grow resulting in enhanced brand value and visibility. We will also continue to increase our brand visibility through cross-marketing activities with Ilmor Engineering Inc”.

Viper Powersports designs, manufactures and markets a line of premium American V-Twin Super Cruiser motorcycles, V-Twin aftermarket engines and other related aftermarket products through an independent dealer network. Joint venture partner Ilmor Engineering (, provides technical developmental support for the proprietary 152 cubic inch Viper V-Twin engine, utilizing their 25 years of engine design expertise, ensuring Vipers’ long term success as America’s newest domestic OEM of motorcycles. Viper Powersports and Viper Motorcycle Company’s websites are and

The foregoing material may contain forward-looking statements. We caution that such statements may be subject to uncertainties and that actual results could differ materially from the fore-going statements. Readers accordingly should not place undue reliance on these forward-looking statements which do not reflect anticipated or unanticipated events or circumstances occurring after the date of these forward-looking statements.

Terry Nesbitt
Viper Motorcycle Company                                                 
Tel: 612-328-1558