Activate exhaust brake for faster warmup?
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The Exhaust Brake is just the vanes in your turbo. Anytime you put any pressure on your throttle, your TPS ( throttle position sensor) will open the vanes up.
I'd be interested to hear others opinions on why this would help warm the vehicle up, other than maybe just when you were parked and idling. And idling doesn't produce much heat. I've always found my truck warms up faster if I actually drive it.
Watching my EGTs, The real heat comes from a little turbo boost.
I'd be interested to hear others opinions on why this would help warm the vehicle up, other than maybe just when you were parked and idling. And idling doesn't produce much heat. I've always found my truck warms up faster if I actually drive it.
Watching my EGTs, The real heat comes from a little turbo boost.
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The exhaust brake on the 6.7 powerstroke, 15 and 16's anyways, close the variable veins on the turbo to create the braking effect. If you have a monitor and watch vgt duty cycle you would see that on a cold start the veins are already completely closed till the truck warms up. So effectively your engine brake is on regardless if you have the switch active. This is also what causes the hair dryer hiss sound on deleted trucks, once the engine temp comes up the veins will open some and you will hear the exhaust note change, less hiss, much deeper tone.
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#9
The exhaust brake on the 6.7 powerstroke, 15 and 16's anyways, close the variable veins on the turbo to create the braking effect. If you have a monitor and watch vgt duty cycle you would see that on a cold start the veins are already completely closed till the truck warms up. So effectively your engine brake is on regardless if you have the switch active. This is also what causes the hair dryer hiss sound on deleted trucks, once the engine temp comes up the veins will open some and you will hear the exhaust note change, less hiss, much deeper tone.
#10
increasing exhaust back pressure by whatever method will increase coolant and oil temp in any Diesel engine
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Maybe so, but a bit naive to underestimate RAM trucks. Sales of the current generation have been steadily climbing even to the point of repeatedly surpassing Silverado sales...despite the current RAM design being a few years older than the Silverado design.
Although I prefer Ford, the Cummins is an excellent engine. The G56 is not a fabulous manual transmission, but how many other manufacturers are offering a manual still? The RFE has improved to the point of being decent. And the Aisin is a very robust transmission.
As for the trucks themselves, the design is very similar to our Fords including the solid front axle. The styling of the truck is very good, interiors are nice, and RAM also offers C&C 4500 and 5500 series trucks...which are beginning to make inroads on the once-exclusive Ford class.
So...Ford needs to stay on top of its game. And the question still wasn't answered.
Here are two somewhat contradictory statements from the Cummins diesel supplement: (Read the last paragraph of each - is it an automatic or manual function?)
Although I prefer Ford, the Cummins is an excellent engine. The G56 is not a fabulous manual transmission, but how many other manufacturers are offering a manual still? The RFE has improved to the point of being decent. And the Aisin is a very robust transmission.
As for the trucks themselves, the design is very similar to our Fords including the solid front axle. The styling of the truck is very good, interiors are nice, and RAM also offers C&C 4500 and 5500 series trucks...which are beginning to make inroads on the once-exclusive Ford class.
So...Ford needs to stay on top of its game. And the question still wasn't answered.
Here are two somewhat contradictory statements from the Cummins diesel supplement: (Read the last paragraph of each - is it an automatic or manual function?)
#15
There is both automatic and manual engine speed up. Some years there was some parts that needed to be added on manual transmission trucks to get the manual idle up to work. The manual idle up was really for PTO or high alternator loads when idling, not quicker warm ups.
The auto idle is for quicker warm ups only.
Pre VGT trucks would auto idle up AND shut off three cylinders to put more load on the engine for quicker warm up.
The auto idle is for quicker warm ups only.
Pre VGT trucks would auto idle up AND shut off three cylinders to put more load on the engine for quicker warm up.