Commission by Jim Talbot
Designed for and installed in Miss Rioco
III (B-116)
Designed by Leo Goossen (drawing 9098),
built by Harry Miller
260 bhp at 6000 rpm
- Designed for the 151 cu. in. supercharged class.
- Miss Rioco III, a three-step hydroplane, designed by John Hacker. Sister boat to Sparrow (B-135).
- Raced by "Richfield Ralph" Snoddy in the National Regatta in San Diego in mid-December 1928.
- Removed from Miss Rioco III in summer 1929; Miss Rioco III re-engined with a supercharged Miller 91 marine (very similar horsepower output, but less torque) - to race in the International 1.5 litre class. With the new engine, Miss Rioco III won the York trophy races, and later that year, at Newport Beach, California, set an absolute speed record for the class at 52.585 mph.
- Thought to be lost, resurfaced in 1978, now fully restored by Lee Burkey.
- Bore: 2.594 in.
- Stroke: 3.5 in.
- Valves: 2 per cylinder, 90o included angle
- Camshafts: DOHC, driven by gear trains at front of engine
- Crankshaft: One piece, counterbalanced
- Connecting rods: Tubular steel, fork and blade style
- Supercharger: 8" water jacket, duplex gear drive
- Carburation: One Miller updraft
- Ignition: Bosch magneto driven by its own gear train at front of engine
- Journals: Split
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Miss Rioco III |
All engine photos provided by Lee Burkey