2016 Ford Superduty - Aluminium

Fordlover wrote:

parkersdad wrote:

N-Trouble wrote:

Fastfwd75 wrote:

What I am surprised of os that they use the heavy 6.2L engine on the raptor when they could use a much lighter engine with turbos.

The ecoboost v6 is far from a light engine...

It's not a heavy duty engine either. If you see an eco-boost in a heavy duty truck it will probably be 5.0 or something bigger.

What (exactly) makes an engine heavy duty? Ford put the 300 inline 6 in heavy duties for years, along with the 302, 351, etc. but I don't think any of those engines can hold a candle to the 3.5 ecoboost by any metric. The 300 and 302 were pretty decent engines, but I'd take the 3.5 eco over them any day, and aparently so would many new truck buyers.

In the diesel world, heavy-heavyduty-diesel engines mean a serviceable wet liner, robust bottom end crank, along with rebuild intervals between 300k and 400k miles with a projected total life of 1.2 million miles in severe service applications. The Cummins ISB/6.7 is a medium-heavyduty-diesel motor. It doesn't have the serviceable/wet sleeves and has a projected rebuild interval of 300k+ miles in severe service. The ISL is a heavy-heavyduty-diesel engine. Some argue that the Ford Scorpion Diesel and the current GM Duramax meet the medium-duty definitions, however I think they fall short with their projected life being only 250,000 miles before the engine will most likely fail (in severe service and according to Ford's and GM's projected engine life testing). But it seems like Ford is going to prove that their Scorpion motor is up to snuff for medium heavy duty work by putting it in the medium-duty trucks showing that it's a straight up competitor to the Cummins ISB.

For others, a heavy duty engine is an engine with design parameters to move vehicles with GVWR's north of 14,000 lbs day in an day out. As robustly built as the 3.5 ecoboost is, I don't think it has within it to pull 14k GVW + whatever that vehicle may tow for 300,000+ miles.

Also, in the grand scheme of things for the majority of consumers, a heavy-light duty motor would do perfectly fine.