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.
I remember the Chevy laying the 2011 Ford to waste on the first hill climb tests but it did it with less power.
Here is a link to one of the dyno runs on the three trucks from back in 2011. 
