This technical spoke covers the fundamental theory, component relationships, critical tolerances, assembly logic, and power flow for manual transmissions and transaxles, including detailed gear ratio calculations, 5-speed architecture, overdrive theory,…

Part 3 covers the internal dynamics of manual transmissions during neutral operation, the architectural variations of synchronizer assemblies across different speed ranges, critical wear surface tolerances, and the precise assembly…

This Part 2 article examines the internal architecture of manual transmissions and transaxles, from gear geometry and shaft integration to synchronizing mechanisms and constant mesh design. Readers will discover how…

This Part 1 article is part of a 4-part technical archive and white paper set covering the core theory, functional requirements, component relationships, and metallurgical principles governing manual transmissions and…

This is the third and final part of this 3-part series on engine cycle theory and classification. Part 3 covers combustion chamber dynamics, the effects of abnormal combustion, valve-to-piston clearance…

This is the second part of a 4-part series on engine cycle theory and classification. Part 2 covers the valvetrain architectures that transfer motion from the camshaft to the valves,…

This is the first article in a 3-part series. Part 1 covers the basic principles of engine displacement and how effectively an engine draws in the air-fuel mixture it needs…

This is the fourth and final part of a 4-part series on engine cycle theory and classification. Part 4 covers fuel classification, diesel engine cycles, multi-cylinder architecture, rotary engine construction,…

This is the third article in a 3-part series. Part 3 covers the geometric relationships inside the engine cylinder, including bore and stroke, compression ratio, and how these dimensions affect…

This is the second article in a 3-part series. Part 2 covers how engine efficiency is measured and classified, including the difference between thermal and mechanical efficiency, the various definitions…