Why diesel trucks?
Judging from my other two posts a lot of folks that responded drive DRW diesel trucks to carry the heavier multi slide campers. I understand the DRW for heavier payload but why diesel? Just looking at...
Forum Discussion
jimh425 wrote:
Take it from Banks then. :D True that a gasoline engine has “different” engine braking, but a similar effect.
“How an Exhaust Brake Works”
Diesel engines control engine speed and power output by throttling the amount of fuel injected into the engine. A diesel has no air throttle. Because it has no air throttle, a diesel engine offers virtually no engine braking when the driver lifts off the accelerator pedal. There just isn’t a pumping loss to ****** engine speed as the piston descends on the intake stroke. Air is free to enter the cylinder, restricted only by the flow capacity of the air cleaner, turbocharger compressor, intercooler, intake manifold, cylinder head port and intake valve opening. This can be disconcerting to a driver that is used to the engine braking produced by a gasoline engine, and it can be downright unnerving to the driver of a heavily-loaded diesel pickup or motorhome on a downhill grade, especially if the vehicle’s service brakes begin to overheat and fade. That’s why exhaust brakes, such as the Banks Brake, have become so popular for such diesel vehicles.
That was technology used in 20 Century.
For last 15 years diesel use VGT turbos, who have adjustable vanes for performance and side effect - closing them provides exhaust brake.
