High-Output Small-Displacement Two-Stroke Engines 780737

The data presented here, deals with the conversion of light-weight, air-cooled, reed-valved, chain-saw type, two-stroke engines into high-output, competition motors for powering small recreational, sports and organized racing vehicles. Raising the output of small two-stroke engines via the usual methods, entails some problems associated with their high RPM potentials, reed and rotary-valve induction systems, cylinder and piston ports, crankcase induction, anti-friction bearing crank-trains, air-cooling, and fuel-lubricant combustion. Developing their modification routines involved techniques differing considerably from those encountered in boosting the outputs of small four-stroke engines. Some highlights of two decades of such engine conversion which might be of interest to design engineers, will be discussed.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.