The dry weight of the first generation ecoboost 3.5L is 449lbs. That includes turbos but not the IC or piping (which probably adds about 30-40lbs unless they make them out of lead). The 6.2L in the raptor weighs 580lbs (cast iron block).
Ford has stated (in the PR interviews that they have done which are posted on youtube) that the ecoboost 3.5 is lighter than the 6.2 and shorter which allowed them to put it further back in the truck and achieve a better weight distribution.
Note, this is not to say that I wouldn't like to see a 4.0-4.4L TTV8 in the future for Ford, but I'm not holding my breath.
So you don't actually know the real world weights, right? You've never actually seen an Apples to Apples wet comparison of the new engine vs the old? And even if you did, that didn't include the transmission, right? So, basically, you're just assuming that none of the 300 pound weight gain (based on the 800 pound lighter body they promised, that was later reduced to a 500 pound weight reduction in the Raptor) resulted from a less efficient drivetrain, right?
You're ASSuming an awful lot
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i thought the mustang forums got bad when the 350 was coming out...