Forum Discussion
158 Replies
4x4ord wrote:
I'd like to see a video of the 7.3 pulling that trailer up the Ike. I'd be willing to bet it would out do at least 1 of these diesels.
It will not have enough torque,and not pulling 30,000#. Listed at 430 hp and 475 lb ft torque, it would need some serious deep gears to even make the climb.FishOnOne wrote:
4x4ord wrote:
I'd like to see a video of the 7.3 pulling that trailer up the Ike. I'd be willing to bet it would out do at least 1 of these diesels.
I seriously doubt it will outperform any of the HD diesels at altitude. But if it did the excuses would be endless like we see here.
Having experienced towing in the mountains with a gas engine, I seriously doubt the 7.3L would even come close to either of those diesels in performance at altitude. Don't get me wrong, I was happy with how my 6.4L Hemi pulled 12k, but these new diesels are king when it comes to pulling big loads - no question.- ^^^ Right you are ... on both those points.
4x4ord wrote:
I'd like to see a video of the 7.3 pulling that trailer up the Ike. I'd be willing to bet it would out do at least 1 of these diesels.
I seriously doubt it will outperform any of the HD diesels at altitude. But if it did the excuses would be endless like we see here.stsmark wrote:
It’s actually 2 separate radiators and they do not mix there is a second belt driven water pump for this.
Fish is correct it’s the fuel and trans coolers on the secondary system.
I was wrong. I finally had time to login to my Ford technical diagrams at work and found out that they did revise it with the new engine. Only the fuel cooler is hooked up to the intercooler now and it is separate from the primary system. The trans cooler is now on the primary system along with the EGR which connected these two initially. I really need to start looking at this stuff more often, but since we only have nine Ford dealerships (versus 120 Peterbilt/Navistar), most of my time is spent with them and Cat/Cummins.
- I'd like to see a video of the 7.3 pulling that trailer up the Ike. I'd be willing to bet it would out do at least 1 of these diesels.
- It’s actually 2 separate radiators and they do not mix there is a second belt driven water pump for this.
Fish is correct it’s the fuel and trans coolers on the secondary system. Huntindog wrote:
4x4ord wrote:
I kind of doubt the GMs fan ran all the time.
^^^ Its really hard to say. Maybe GM is wanting cooler temps so the cooling fan never shut off. My Ford runs up to 205 *F in minus 5*F weather cruising down the level highway without a trailer. The GM ran in its peak hp range the whole way up the hill and yet put less power to the pavement than the Ford did running at 2200 rpm. If that big cooling fan was running continuous it may have robbed an awful lot of HP.
In the Ford, when it came on, it was VERY loud.
The GM was quiet inside.
And if that huge fan had been running, it should have made some noise, and I would think that they would have talked about it like they did with the Ford.
The low trans temp doesn't suprise me, as my 2011 also runs cool even towing in AZ in the summer.
It's amazing to me on the original video. They didn't mention that as a negative when they scored them both. That's a huge negative to Ford. I usually don't call out placed for bias, but they seemed awfully biased in this assessment. The Ford won up the hill, they should have scored better but not 82 to 59 or whatever.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.
The secondary cooling system cools the charge air cooler, fuel line, and transmission. It does not cool the engine oil.4x4ord wrote:
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.
The transmission temperature is controlled via a thermostat which allows it to get to temp quicker and also controls the temperature better.
