That "braking" effect you use is provided by the friction in the engine. The friction is between the piston rings and the cylinder walls and is most pronounced at the higher RPMS
I was hoping that Harley would weigh in on this one, but since he's allowed it to go through to the keeper, here goes;
While it is true that the higher the engine speed, the greater the friction, it is only a small part of the "braking effect" that one uses with motor vehicles.
In motor vehicles the braking effect is the combination of the gearing of the engine to road speed and the resulting retardation provided by
compression pumping within the engine without fuel addition.
If one wants to control the braking effect, then a small amount of accelerator will allow some fuel to arrive at the combustion chamber and use the compression products to deliver power according to the fuel supplied.
With no fuel, the compression developed is still there but it is ALL wasted in the form of retardation provided to the wheels that are driving the engine.
As for you
Snoopy if you don't like the discussions then go and play somewhere else.
