Forum Discussion
158 Replies
- I wonder if the heat from the charge air is used to warm the transmission fluid? It seem like the transmission fluid is able to get up to temperature in very cold weather.
4x4ord wrote:
stsmark wrote:
FYI the Ford Charge Air Cooler is not tied to the engine coolant. It uses the Secondary Radiator which is mounted in front of the other. The Trans cooler and Oil cooler are the only other items tied to it.
Do you know how the coolant is circulated through the intercooler on the Powerstroke? Electric pump?
While most people think they are separate because it has it's own bottle, it is only a degas bottle and the two systems are not completely isolated from each other. This secondary system is also tied to the EGR cooler so it has to soak up and dispell heat from the trans cooler, fuel cooler, and EGR cooler along with the intercooler.
IT TAKES TWO! – SECONDARY RADIATOR R&D, PART 1: FACTORY REVIEW AND 3D MODELS
Edit: It appears the system was updated in 2015 and the secondary system is no longer attached to the EGR cooler and is now being cooled by the primary system.stsmark wrote:
FYI the Ford Charge Air Cooler is not tied to the engine coolant. It uses the Secondary Radiator which is mounted in front of the other. The Trans cooler and Oil cooler are the only other items tied to it.
Do you know how the coolant is circulated through the intercooler on the Powerstroke? Electric pump?- FYI the Ford Charge Air Cooler is not tied to the engine coolant. It uses the Secondary Radiator which is mounted in front of the other. The Trans cooler and Oil cooler are the only other items tied to it.
- I wonder why the trans temp is so high on the Ford especially with such cold temps outside?
Looking back at some of my towing pics my AISIN trans temps have never been higher than 176 that was with ambient 83 and cooling at 215 locked in 3rd @ 40mph on a steep grade over 6%.
Even on long 6% grades with ambient in the 90's trans has been 172-176 range. - ^^^ They don't both have a ______ load of power. Based on the performance of the GM during this run a GM would bareley be able to maintain 50 mph on a 6% grade with my 16k lb 5ver in tow.
- Or, to sum up the last 10 pages, they both have a ____load of power and will tow pretty much anything you can hook to a light duty truck anywhere you want to tow it.
And the Dodge will too. - 205-210 are normal Tstat temps in todays motors, mainly for emissions purposes. So those are temps you would expect. The fan typically comes on at a higher temp when it needs to when temps climb a certain amount over Tstat temp.
219 sounds about right.
I know that it is rare for the fan on my 2011 to come on....DW always asks me about when it does, as it is loud.
In those temps, I woud be suprised if the GMs fan ran at all. The air blowing over the rad at 35+ MPH should be enough to keep it cool.
But you may be on to something,. If the fan was running all of the time, then it was acting up.
And that would for sure rob a lot of HP - The formula for calculating horsepower from torque is constant regardless of engine. No matter what kind of engine, if it is making X torque at Y rpm, then it is making Z horsepower at Y rpm. If you have a diesel and gas making 400 lb-ft at 2,000 rpm, then both are making 152 horsepower at 2,000 rpm.
- I noticed some time ago that the formula for calculating HP from TQ doesn't seem to work on the diesels.... So I not convinced of your assumption on the fords 1050=320
