Shiner
I do agree with you. I was talking with a fellow that pulls a boat trailer at around 11,009 lbs from Wenatchee to here in Seattle with his 1500 w/6.2 motor. Going 50+ over Stevens Pass which is in the 4-5%grade rang. Twistier than an interstate is, as it's a two lane State highway.
I have a 3,5ecoboost in the transit van I drive. It's too has plenty of power.
These smaller motors have as much or more HP a d torque as BB motors had in late 70s when I first started driving and towing.
BUT, an 8500lb RV trailer is a tougher higher HP needed than the 11,000 lb boat, or the 11,000 lb equipment trailers Grit or I pull due to windage, aerodynamics and frontal area. Go from 70 to90sq ft of frontal area at 15,000 lb gcw,you need an additional 30hp at 60 mph. Some total HP as a 26000 lb rig with 70 sq ft of frontal area. ALOT of folks do not lower the ratings for said differences. Not do the manufactures give us reductions for being over the tested frontal area.
I've only seen Ford do this back in the early 80s. Max trailer then for a 25/35 series truck was 10,000 with a max frontal area of 80sqft. 81-109 was reduced to 7500, 101-120 reduced to 5000. Trailers over 120sqft were not recommended to be towed.
You've worked in sales etc for MDT/HDT trucks, you've probably speced trucked for multiple types and styles of uses. You should know line I do, a one size fits all rating does not work.
Hence why I don't trust the engineer manufacture specs for tow ratings. I've in the past owned and pulled four different trailers behind a given truck(s), things change pulling a BIG box vs my bobcat the wieghs more than the RV trailer. The RV trailer more fuel at freeway speeds, bobcat harder on steeper grades due to an additional 3-5000 lbs.
Marty
