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
4x4ord wrote:
I don't know why both gauges don't read at the same time on your Ram. Maybe the gauges are set up to either show boost or braking depending on throttle position but never both? I know the boost gauge rises very significantly when I use the Jake Brake on my Peterbilt. The harder it works the higher the boost goes. In the case of these small diesels that use the vanes on the exhaust turbine to create back pressure I think the turbo is going to be set as aggressive as possible when its creating maximum braking..... at that point it should be making boost. I think the boost guage rises on my little Ford but I haven't used it much for towing yet. I'll pay more attention this summer.
I am guessing you did not read my post about no boost when an exhaust brake is active. Go back and read it. You can not make exhaust brake HP and boost at the same time. One or the other. ONE IS FOR GOING and ONE IS FOR SLOWING DOWN OR CONTROLLING SPEED.
If they is boost made, it was be a very small amount, as it takes a lot of exhaust flow to spin the turbo. Part of the turbo spin up is base on hot expanding gases coming out of the cylinders. With little fuel being dumped in the cylinders gases are not going to be expanding much.
