the new Allison trans with braking..for gassers is truly a wonderful piece of engineering
but..some facts about diesels and gassers are getting misconstrued
diesels have such good compression braking because.they are HIGH compression engines..like 20:1 much higher than gas engines
shut the fuel to a minimum and restrict the exhaust and it take a lot of energy to force that engine to rotate
diesel engines are "free breathers" ..the fuel is controlled NOT the air intake
gas engines both fuel and air are controlled..
BUT the air intake is restricted only when there is no throttle.. the gas engine does NOT have naturally occurring engine braking as some have suggested
restricting air intake..throttle body or carb flaps only reduces air into the take..(like suction).. it does not do anything to increase compression and reduce engine speed other than reducing combustion of fuel in the engine
diesel or gas ..tis all about low gears and good driving and Knowing how to use whats available
