Forum Discussion
RCMAN46
Feb 06, 2015Explorer
AH64ID wrote:RCMAN46 wrote:
I did do the math.
The ECO makes it's max horsepower at about 5200 rpm. The 6.2 at about 5600 rpm.
The Eco near the top of the hill was in 3rd gear. With the 3.73 the ECO will turn about 4000 rpm at 65 mph.
The 6.2 with the 3.42 would be in 4th gear and will turn about 4000 rpm at 65 mph.
But the 6.2 was able to accelerate more than the ECO when both were running about 4000 rpm.
It is obvious the 6.2 was able to make more horsepower.
Not what you were talking about earlier. You made the comment that you didn't think the Eco was out of gears, I was talking about looking at what it would take to downshift, more gears, at 65 out of 3rd... It was out of gears.
I agree, the 6.2 had more power at altitude.
Here is another question, I'm not a EBologist so??, but does it have an OEM EGT sensor? Was is heat soaked and defueling? Maybe IAT was too high from the sustained near max boost?
We know that the 6.2 will lose 30% of it's power at 11K feet, and we know that the 6.2 was pulling harder at 11K feet... So that there should tell us about how much power the Eco lost at 11K feet.
You have assumed the ECO can actually make 380 hp. Ford does not have their hp numbers certified but GM does so we know the 6.2 can actually make 420 hp at sea level.
The 6.2 is in the same boat as the ECO as far as gears. If fact the ECO had an edge as it was closer to it's max hp at 4000 rpm than the 6.2 was to it's max hp at 4000 rpm.
It is interesting that both were running about 65 mph at 4000 rpm.
As for heat soaking etc are their any other excuses why the ECO does not meet expectations?
I love all the excuses made anytime a GM product performs better than the competition
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