engine brake while towing?
OK, so just getting a feel for towing my 5er with the 2013 Ram Cummins. When tow enabled (heavy tow used with appropriate tire pressure) and engine brake on, going downhill after taking foot off gas ...
Forum Discussion
ShinerBock wrote:wilber1 wrote:
No, it does not increase the pressure, it increases the velocity. If you attached another hose to the end of that nozzle and put a pressure gauge immediately downstream, the pressure would be lower. If you blocked that hose, the pressure would be the same on both sides of the nozzle.
At the end of that nozzle you have reduced flow to increase output pressure. Same thing that happens in an automatic transmission. It reduces flow to certain valves in a series of valves to increase pressure and flow going into other valves.
You guys at both kind of right and talking past each other. Putting your finger over a hose can increase the pressure inside the hose just behind your finger but only to the level the upstream pump is putting out in the first place. The open hose (flow) was dropping the pressure to lower than the pump output.
I'd guess that most, if not all of the time the transmission pump is putting out more than enough pressure so that it can be regulated down to the needed pressure for the clutches. The only time the pump pressure would affect anything is if the regulation valves are running at max available pressure and there still isn't the desire amount.
