Quote:
Originally Posted by rotrex
Parmas, at at higher injector duty cyles at WOT, e.g. 70%, The Fuel injectors Are open most of the time. In a port injector set-sequential injection is mainly for low load and low to mid rev emissions. if your duty cycle hits 90% they are open 90% of the time, this means also open when the intake valve is closed . It is no big deal
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Rotrex, as you said above 70% injectors are open MOST of the time and not ALL the time.
The 30% difference of a direct port injection system will result mainly in :
- Wetting valves/walls with methanol
- Valve Guide lubricity issues
- Extra Fuel consumption
- Enhance Corrosion of metals
- Resulting in 100% Relative Humidty (Hurts Evaporation)
Considering the next methanol build, I am planning to run and depend particularly on the direct port methanol setup while on boost. According previous datalogging injector duty cycles vary from low boost 30% to high boost 60%.
What would happen if I begin direct port injection at low boost ?