Quote:
| Originally Posted by ells Yep,
very interesting, but I am with Badger on this one (apart from the crashing bit)
Mark |
Thats because you both have carb'd bikes
When they start sucking in fuel is determined by when the inlet valve opens, and the amount of fuel sucked in is governed by the size of the jets and the vacuum above them hence why the airbox plays a part.
@ 10000rpm the engine only has 6mS for each 360 degree crank rotation, Cam duration is around 280 degrees on the injected bikes so only about 4.65mS to suck a fresh charge into the cylinder when flat out, yet injector opening times are often in excess of this, meaning fuel is being added while the valve is closed.
I may have to hook up the Oscilloscope one day and see how the injector pulse conpares to the pulse from the crank sensor and also to the Ignition timing