Forum Discussion
ShinerBock
Dec 09, 2020Explorer
4x4ord wrote:ShinerBock wrote:
You see, this is why I say it is deceptive when advertising short burst power. People think the other makes that advertise a more sustainable power rating when using the truck as intended need to "catch up" even though those other makes can do the same by tuning the engine to 475 or even 500 hp and then drop it down anytime these is a load on on the truck.
It is no different than 4x4Ford chastising me in another thread for saying I tow in my 475 rwhp tune because he thought it was deceptive to other people thinking I can sustain that power rating at max engine load, which I already explained that I could not and only call it the 475 hp tune because that is what it dynoed at. I guess Ford gets a pass on being deceptive since it is his favorite brand, however, how dare I say a Cummins makes 475 hp at the wheels, but gets backed down under max engine load for long periods of time.
I’m sure we can modify any of these new diesels to make 600 hp if that’s what we want. In stock form the Cummins is rated at 400 HP, who knows how much of that is sustainable on a hot day pulling a big load up a steep hill. The Ford is rated at 475 Hp .... on a hot day and steep hill I don’t expect it to sustain that level of power either. What we saw in the last TFL Ike pull the Ford, while running at 2100 rpm, was able to sustain way more power on a cold day on a long steep hill than the Ram was able to sustain under similar conditions running close to rated hp. At 2100 rpm the Ford, according to factory ratings, should only be producing about 400 hp; the Ram, according to factory ratings, should have been producing about 383 Hp at 2300 rpm. In actuality if the Cummins was producing 383 Hp to make it up the hill in 11:33 the Ford would have had to produce more than420 hp to get up the hill in the 10:20 that it accomplished it’s run in. So I don’t know where you get your idea from that Ford has power numbers that are so misleading. If Fords numbers are misleading, it seems to me they are underrating the truck not over rating it.
So why did you jump me for saying that I run my 475 rwhp tune? How is that any different than Ford saying they give you 475 hp and back it down as needed just as I said I did with my tune?
Unless those trucks ran those test on the same day or exact same temps and wind conditions, I don't pay attention to those numbers. Anyone with any experience towing knows that wind and ambient temps can have a huge effect on how well a truck can tow and at what power level especially in extreme conditions.
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