Quote:
Originally Posted by janvos39
The Kawasaki ninja with over 70 MPG. A very nice achievement. It shows that a lot can be gained by doing the correct gearing. I wonder what is now the RPM at a speed of 75 Mph ? Are you planning any aero modīs for the Ninja? At this level of MPG you probably can detect very quikly how much an improvement brings.Last qustion on the Cd*A do you have any info on that e.g. a good picture from front or back for the surface area?
It would be nice if we can calculate the engine efficiency when the air resistance and the rolling resistance is estimated. Good work keep on going.
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My rpm in 6th gear is about 950rpm per 10mph. At 75mph my engine spins at about 7100 rpms. With stock tires and gearing, at 75mph the engine spun at about 8500rpms. My bike now does not burn any oil (very very tiny amount if any) after long cruises.
Yes, i am planning to do some aero modifications to my bike. I am currently working in a program called SolidWorks to come up with the best, practical design.... this is my daily driver and i need it to be usable.
After looking at the 125mpg trike on the front page (its powered by a Ninja 250 motor and transmission), i have seen the potential of my platform breaking the 100mpg mark with better aerodynamics.
This is really the only picture i can find of the front of a pre-2008 Ninja 250.
