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Further Developments of a 500 cc Single-Cylinder 2-Cycle Engine for Motorcycle Racing and Moto-Cross Applications
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English
Abstract
An earlier paper by Blair and Cahoon (SAE 710082) described the initial design and development of a 60 hp engine of the single-cylinder 2-cycle type for road racing motorcycle applications. This paper continues with the further design of this engine as a 65 hp 5-speed transmission unit and a variation of it as a 40 hp 4-speed transmission engine for moto-cross racing usage. A discussion of the application of the computer to the design of both engines is included. The computer design is used for the prediction of the required torque/speed characteristics for both engines for their particular application in order to eliminate lengthy test bed development. The mechanical design criteria for the engine/transmission units are also discussed and their implementation for the road race or moto-cross application described.
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Citation
Blair, G., "Further Developments of a 500 cc Single-Cylinder 2-Cycle Engine for Motorcycle Racing and Moto-Cross Applications," SAE Technical Paper 740745, 1974, https://doi.org/10.4271/740745.Also In
References
- Krautter W. “Multicylinder Motorcycle Engines Give More Power Than Single-Cylinder Units Produce.” Paper 690478 presented at SAE Cleveland Meeting October 1967
- Blair G. P. Cahoon W. L. “More Complete Analysis of Unsteady Gas Flow through a High-Specific-Output Engine.” SAE Transactions 81 1972 paper 720156
- Blair G. P. Cahoon W. L. “Design and Initial Development of a High Specific Output, 500 cc Single-Cylinder, Two-Stroke, Racing Motorcycle Engine.” Paper 710082 presented at SAE Automotive Engineering Congress Detroit January 1971