American Motorcycle Dealer AMD 221 December 2017 | Page 43

Arsenal Racecraft 107 engine performance kit for Twin Cams Showcased at AIMExpo (Columbus, Ohio, September 2017), Auburn, Alabama based Arsenal Racecraft’s AR-107 Harley-Davidson engine performance kit is a comprehensive performance upgrade solution for 2007 and later Twin Cams. OEM Harley-Davidson heads, handported by Matt Smith Racing, are scanned and replicated by Arsenal’s Rottler 5-axis CNC, then machined, utilizing the company’s proprietary dimple technology. Colbert Seagraves, Arsenal’s VP Marketing, says the service is also available on “your or your customer’s heads, on a 5 to 10 business day turn-around basis. “OEM Harley cylinders are bored oversize 3.937 inches (100 mm) and plated for heat reduction, durability, and increased horsepower. The cylinders are honed to industry leading tolerances using our Rottler H-75A CNC automatic power stroke diamond-honing machine. PARTS AND ACCESSORIES A proprietary performance - torque and horsepower – Arsenal Racecraft/Andrews .610 lift cam specifically for this kit A proprietary dome shaped performance Arsenal Racecraft/CP-Carrillo piston to fit the custom chambers for the AR-107 kit OEM Harley cylinders are bored oversize 3.937 inches (100 mm) and plated for heat reduction, durability and increased horsepower. The cylinders are honed to industry leading tolerances using a Rottler H-75A CNC automatic power stroke diamond-honing machine OEM Harley-Davidson heads are handported by Matt Smith Racing, scanned and replicated by Arsenal’s Rottler 5-Axis CNC, then machined utilizing the company’s proprietary dimple technology “We have developed a proprietary dome shaped performance Arsenal Racecraft /CP-Carrillo piston to fit the custom chambers for the AR-107 kit, and a proprietary performance - torque and horsepower – Arsenal Racecraft/Andrews .610 lift cam specifically for this kit. “In conjunction with Pulstar, we have developed a proprietary Plasma Plug, using innovative plasma- assisted combustion technology to increase horsepower and torque. The valvetrain has oversize stainless steel valves (1.900 intake and 1.630 exhaust, both with 7 mm stem), bronze intake and exhaust guides, and high- performance valve springs with titanium retainers. “We finish the performance upgrade with performance adjustable push rods and chrome push rod tubes with O-rings and a Cometic hi-performance gasket kit. For Indian motorcycles, we have an AR-117 kit going into production in December.” ARSENAL RACECRAFT Auburn, Alabama, USA Tel: [phone] [email protected] www.arsenalracecraft.com AMERICAN MOTORCYCLE DEALER - DECEMBER 2017 43