Quote:
Originally Posted by dan765
I'm confused on this. It seems to me that since the engine spins faster while braking, then it is burning more fuel, so how is it more efficient?  |
throttle closed has air bypass open on injected. the last of the carbs attempted crazy ways to do this, but it is not efficient. it is insanity with an egr valve.
I still avoid engine brake in carb vehicles...and the egr valve may become an air valve sometime, I have been pondering experiments for years.
for injecteds, the engine brake will never be strong because of air valve, but like a rig, at heavy load it is only 5% helper, or wherever a car may be in weight and engine size. still worth choosing and making easy to drive stick shift.