Downshift or exhaust brake?
I was just thinking after reading a post about gas vs diesel trucks where somebody mentioned they liked diesel because of the exhaust brake. I've never had a diesel, always gas. If I come up to a long...
Forum Discussion
wnjj wrote:
The following is my theory:
Since the restriction is after the exhaust side of the turbo, the turbo vanes themselves sit in a pocket of lower flow, high pressure exhaust. That won’t spin the turbo much. With a traditional engine brake, the full amount of exhaust flows through at high speeds, but is time shifted from the exhaust stroke to just before TDC to provide the maximum resistance under compression.
That is what I am saying. I have the Exhaust HP gauge and the boost gauge both selected on the EVIC screen. Pretty much one or the other, for sure never both up high at the same time.
Chris
