2 stroke engine performance tuning

Here, our original wave reaches that “cure”. Following the diffuser, and after perhaps a couple of inches of straight-walled chamber, the w...

Years ago, the exhaust system ended right behind the diffuser. That was the arrangement on the old supercharged DKWs, and we saw stub megap...

THE BASIC PROCESS When the exhaust port cracks open, gases still under a considerable pressure burst out into the exhaust tract, forming a w...

Actual percentage improvements between engines fitted with their standard mufflers and the same engines with expansion chambers will vary gr...

Walter Kaaden was chief engineer of MZ's racing department through that firm's glory years on the Grand Prix circuit, and in that ca...

Nominal compression ratios, as I have said before, have little meaning in high-output two-stroke engines. However, you can work with trappe...

A major problem with cylinder heads on high-output engines that began life as low output engines is persistent leakage around the head/cylin...