I am currently researching air intake capabilities of the KLR and was wondering if anyone knows what the volumetric efficiency of a stock '07 KLR engine is. Any info or a point in the right direction would be appreciated.
Most of the info I have found is theoretical info based on 100% efficiency. Some info even suggests that it is well over 100%. I have seen the flow bench test results for the air box mods and for the carb alone. What I am interested in is data for the engines' actual capability. I have found some general info on the web that suggests most gasoline engines are around 80-92% while naturally aspirated engines with high performance intake and valve train components can accomplish up to 95% and that forced induction can get up to around 115%.
Thanks in advance!