W3

The W3® is a three cylinder W configuration engine. Air cooled, two-valve, triple gear driven cam, with a 4” bore and 4”stroke creating a 150 cubic inch monster. The engine is based on the Harley Twin Cam engine with majority of it's components interchangeable. The W3 uses its cubic inch to create the power thus keeping the package very reliable. The three-cylinder arrangement provides inherent smoothness firing at 90 degrees, and the low center of gravity is perfect for motorcycles.

History

Jim Feuling founded Feuling R&D/Advanced Technologies in 1974. Jim was an inventor, author, publisher, philosopher, pilot, motorcycle and automobile designer/builder/racer and leading- edge researcher/developer in the field of engine design and fluid dynamics. Jim passed away in 2002 after a battle with pancreatic cancer, the business today still proudly bears the Feuling name.

Jim was years ahead of his time, Feuling technology is still widely used on production vehicles today. Jim served in the United States Army Special Forces. He was awarded the prestigious SCORE “Mechanic of the Year” trophy. His racing engines, high performance components and inventions have been used worldwide, from Daytona to Monaco, from off-road racing to Bonneville to Formula One Grand Prix and the Indy 500.

Feuling's leading-edge development work includes R&D contracts and licensing with the likes of Chevrolet, Oldsmobile, Ford, Chrysler, Mazda, Nissan, John Deere, Harley-Davidson, Bell Sports, Shoei, Edelbrock and aircraft companies such as Cessna, Mooney and Quickie. In 1988 Jim received the “Outstanding Technical Achievement Award” from the National Engineering Societies for his “clean sheet” design, development and manufacture of the 2.0L “BE” Quad-4 racing engine used in the Oldsmobile Aerotech Research Vehicle (267.339 mph 'the world record for the flying mile', driven by A.J. Foyt). The radical BE 4-cylinder, 4 valve engine developed the highest specific power output of any automotive engine in history, 10+ hp per cubic inch (over 1,270 hp from 121 cubic inches). The “BE” project lead to the development of the Aurora V8 Indy engine, and the platform for the Cadillac Northstar engine.

Feuling Technologies is home to the CENTERFIRE, MAX FLOW and Harley 4 valve cylinder heads, AR Anti-Reversion exhaust system, CVX muffler and the high efficiency Three-Valve Combustion Chamber System. Feuling holds and has held multiple land speed records including a spot on the world’s fastest motorcycle list (332.103 mph) and world’s fastest fuel streamliner (344.114 mph). With decades of experience in automotive, motorcycle and aviation design and development the staff at Feuling® is second to none.
Engine Specs

Configuration………………………………………3-cylinder, air cooled 45 Degreex 45 Degree W layout

Valve Train………………………………………………………… OHV 2 valves per cylinder

Bore…………………………………………………………………………………………4.0 in.

Stroke........................................................................................................................4.0 in.

Displacement............................................................................................150 cu. in., 2.5L

Compression Ratio...................................................................................................10.8:1

Horsepower.............................................................................................180 @ 5500 RPM

Torque......................................................................................... 200 lbs. ft. @ 3000 RPM

Firing Order..................................................................1 – 3 – 2, using rear cylinder as #1

Firing Impulses......................................................90 degrees, 315 degrees, 315 degrees

Cases......................................................................Feuling W3 – A356T6 Cast Aluminum

Crankshaft.....................................Modified HD Twin Cam, clearanced and balanced for

Feuling Master/Link rod, HD bearings

Connecting Rod……………. Forged 4340 Chromoly Steel (Feuling Master/Link Design)

Heads.............................................Feuling 2 Valve with patented HIGH VELOCITY Ports

Valves……………………………………. Feuling wide margin 2.000 intake, 1.500 exhaust

Valvesprings...........................................Feuling Beehive Highload W/Ti retainers & locks


Breathers................................Feuling rocker box breathers and external head breathers

Camshafts......................Feuling 594 grind, Lift: Int 594”/ Exh 604“, Dur Int 255/Exh 260

Camplate................................................................................................Feuling HighFlow

Cam Drive.....................Andrews Cam gears, outer front & rear cam gears + crank gear

Oil Pump.........................................................................................Feuling RACE SERIES

Pistons..................................................................................................KB Forged/Coated

Pushrods....................................................Feuling HP+ One piece 0.165” wall thickness

Lifters..............................................................................Feuling RACE SERIES, full travel

Exhaust System........................................Feuling Anti-Reversion 3 into 1, triple stepped

Intake System………Feuling Fuel Injected 1into3 log manifold, Feuling 5.3 g/s injectors

HPI 64mm throttle body

Ignition.........................................................................................................Motec/Feuling

Coils........................................................................................................................Feuling

Spark Plugs...........................................................................................NGK 10 mm JR8C

Lubricants..................Valvoline: Engine VR1 20W50, Primary Type F, Trans 80-90 weight

Frame.................................................Feuling frame with 30 degree Steering Head Angle