FishOnOne wrote:
blofgren wrote:
FishOnOne wrote:
blofgren wrote:
FishOnOne wrote:
Huntindog wrote:
shepstone wrote:
Flashman wrote:
gmcsmoke wrote:
claiming and achieving are too vastly different things, especially for ford.
True that.
Show me any of the makers that doesn't play the numbers game...
GM.
Back in 2010 when Ford and GM were releasing their numbers. GM came out with 397 HP and 765 TQ. That exceeded what Ford had released, and they already had trucks on the road. Ford quickly retrenched with a nice round 400HP 800TQ, even offering a reflash to those the had already bought.
I saw a interview with some of the GM engineers, They were asked why didn't GM just make their Dmax ratings the same as Fords... The answer "We have extensivly tested the Dmax and that is what the numbers came in at. We are confident and comfortable with these numbers."
The Dmax then went on a tear in test after test easily beating the higher rated Ford PSD.
Then the truth about the ratings slowly came out.
GM was the only one that had their power numbers tested to SAE standards....
As has been said, claiming and achieving are two different things.
The initial release of the 6.7 PSD was intentionally released with a 400hp upgrade there after. Looking at the original release HP plots of the Power Stroke where the HP curve literally went flat line at around 390hp and it was clear the HP was being clipped.
In addition I believe there are different SAE HP test methods and GM, Ford, and Fiat all use different methods. Since 2015 with Ford installing a larger turbo for better higher altitude performance, the Power Stroke has raised the bar for everyone to beat. So yes Ford achieved the performance they targeted.
Yep Ford has concentrated on performance and kept reliability on the back burner. I still say the Ford 6.7L will be a VERY expensive engine to own long term. One look under the hood of a Super Duty confirms that. I don't care if my truck is a few seconds or even a few minutes slower climbing a hill; I know it will continue to do it repeatedly and reliably for many years and miles. :)
Reliability has been very good... I got 96k miles and not a single repair to date on any part of the truck. And I seriously doubt you'll work on any modern emissions diesel engine built today without some serious diagnostic equipment.
But if power wasn't your top priority you choose the right truck.
Trust me I don't have a really big ego where making it to the top of the hill first was a real priority. ;) Keeping doing it reliably and for years to come was. :B
Reliability and Durability was my top priority as well and that's why I choose the Ford Power Stroke and Torque Shift transmission. But having a strong performing engine makes towing a real pleasure you couldn't understand.
Man, are you out to lunch! :R Yes, the 6.7L Cummins is such a poor performer. :S
