World's smallest supercharged four-stroke V8 engine now in production
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The Conley Stinger 609 on a test stand (Photo: Conley Precision Engines)
Quarter-rear view of the Conley Stinger 609 V8 engine (Photo: Conley Precision Engines)
Quarter-scale model of a 1923 roadster equipped with the Conley Stinger 609 V8 (Photo: Conley Precision Engines)
Quarter-scale drag racecar equipped with the Conley Stinger 609 V8 (Photo: Conley Precision Engines)
Rear end of quarter-scale drag racecar equipped with the Conley Stinger 609 V8 (Photo: Conley Precision Engines)
Gary Conley holding a production model of his new supercharged V8 engine (Photo: Conley Precision Engines)
Internal parts of the Conley Stinger 609 V8 engine (Photo: Conley Precision Engines)
Quarter-scale drag racecar equipped with the Conley Stinger 609 V8 engine (Photo: Conley Precision Engines)
Quarter-front view of the Conley Stinger 609 supercharged V8 engine (Photo: Conley Precision Engines)
Miniature spark plug for the Stinger 609 (Photo: Conley Precision Engines)
Engine block of the Stinger 609 with heads attached (Photo: Conley Precision Engines)
Heads with valves installed for the Stinger 609 (Photo: Conley Precision Engines)
Finished crankshaft for the Stinger 609 (Photo: Conley Precision Engines)
Stages in the fabrication of the Stinger 609 crankshaft (Photo: Conley Precision Engines)
Quarter-front view of a normally aspirated Stinger 609 engine (Photo: Conley Precision Engines)
Custom-fabricated piston rings for the Stinger 609 (Photo: Conley Precision Engines)
Bottom view of the Stinger 609 showing the crankshaft in place (Photo: Conley Precision Engines)
Piston and connecting rod for the Stinger 609. The original cast aluminum rod would not stand up to the stresses of the supercharged 609, so the billet rods were substituted (Photo: Conley Precision Engines)
The Conley Stinger 609 supercharged four-cycle V8 gasoline engine - 6.09 cubic inches and 9.5 horsepower at 10,000 rpm (Photo: Conley Precision Engines)
Article Summary
Giant-scale model cars (and airplanes) powered by small gasoline engines have been popular with adult racers for quite a few years now. The largest scale models available through conventional RC hobby outlets are one-fifth or one-sixth scale, but the serious racers go quarter-scale. Now the smallest (quarter-scale) blown V8 gasoline engine in commercial production is being turned out by Conley Precision Engines to power.
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