RobertRyan wrote:
Well the rest of the world has diesel prices which are higher, than Gas engines, your statement seems confused. No your E350 sounds unpowered , anything can pull a GVWR of 11,800lbs, even a Sprinter. Yes with a low gearing, it would drive up steep hills with a load, but it's modest torque output VERY SLOWLY.
The ECoBoost due to its torque and horspwer delivery would have considerable less GVWR than the Diesel version. That is born out by looking the GVWR Transit compared to the Diesel version
What is confusing about my statement(s)?
BTW, I have an E450, not an E350.
I implied that diesel prices in NA are higher than gasoline prices in NA almost enough to offset diesel's better gas mileage - hence their fuel cost per mile advantage is getting less and less and may soon be nonexistent. I'm of the opinion that that's going to eventually happen all over the world.
The E450 under my RV has a GVWR of 14,050 lbs.. My actual RV's weight is only around 11,800 lbs. ... so it's under-loaded versus what it's designed to carry weight-wise and gearing-wise. This means it's 310 horsepower can out-pull and out-accelerate any diesel of lesser horsepower carrying the same 11,800 lbs., if and only if, one doesn't try to compare the turbo-charging of the diesel with the non-turbo-charging of the V10 at high altitudes.
The E450 under my RV has a rear differential ratio of 4:56 to tap it's horsepower for conversion into drive alxe torque that, like I said, is where the real torque is needed ... not merely crankshaft torque like a diesel has. A diesel will have a much smaller rear differential ratio merely because less conversion of it's lower horsepower is needed due to it's higher intrinsic crankshaft torque values. The only pulling power difference of a diesel is that you merely have to push in it's fuel pedal to get more power instead of both pushing in the fuel pedal combined with a gear change in a gas engine. Diesel fans (must/apparently) hate higher engine RPM's, so a lesser-shifting motor technology is where they flock to.
Diesel fans always boast that higher crankshaft torque counts for more than proper base horsepower - that can then be easily converted into drive axle torque via gearing.
I can hardly wait until the Eco-Boost technology has been around enough to prove that diesels only advantage is the sound of it's lower RPM.