How does a two stroke engine change timing?
In contrast, a two-stroke engine’s valve timing may be altered simply by reshaping the holes in its cylinders, and its power output markedly changed by utilizing inertia and resonant effects in its intake and exhaust tracts. None of these modifications are costly.
What was the two stroke tuner in 1973?
Computers and all the fine software have taken modifying and tuning two-strokes to a level higher that one could have imagined in 1973. A lesser work would have surely passed into “Nostalgia Heaven”long ago.
Are there any modifications to a two stroke engine?
None of these modifications are costly. On the other hand, while the two-stroke engine does not commonly require large dollar inputs to raise its power output, it does require an in-depth under- standing on the part of the man doing the modifications.
Where did two stroke performance tuning come from?
2 Two Stroke Performance Tuning Fig. 3.2: Komet K78 TT porting. Contemporary two-stroke technology was introduced initially to Suzuki, and later to Yamaha in Japan when Ernst Degner defected from East Germany to join Suzuki.
What should stoich be for idle tuning hp?
I’ll also add that I believe most of us can benefit from commanding stoich after the engine comes up in temperature and continues to reach operating temp. To do this during the idle tuning process, go to Engine > Fuel Control > OL&CL >Open Loop EQ Ratio and set columns 140-230*F to = 1 which will command the PCM to set fueling to ~14.7.
When did Scott develop the rotary valve engine?
Scott also developed a rotary valve engine in 1912, winning the Senior TT in that year and the following year. However in spite of some very innovative designs being incorporated in two-stroke engines they continued to be embarrassingly unreliable and this single factor stifled development right up until the time of World War II.
How to zero out adaptive idle parameters in hp tuner?
ECT settings equal to 284*F < Idle > Idle Airflow > Adaptive Idle Airflow and ZERO out the Max In-Gear AC Off, Min In-Gear AC Off, Max P/N AC off and the Min P/N AC off tables.