F150 2.7 EB vs 5L V8 towing mpg
The 2.7 EB truck had a 3.55 axle, the 5.0L had a 3.31, both 10 speed auto crew can 4x4s, towing a 7000# horse trailer. The 5.0L V8 rated at 395hp/400tq did 9.8 mpg The 2.7L EB rated at 325hp/400tq...
Forum Discussion
Interesting thread. Again Ben, appreciate your engineering know how in explaining differences between turbo and non turbo engines. Wonder if you would care to comment on my...somewhat long winded question.
I've never had a turbo engine, just naturally aspirated engines and for years I've stayed away from turbochrged engines, because of concerns about turbocharger longevity. Some over the years have said that the turbo unit is more like a service items, something that can be expected to be replaced over the lifetime of an engines.
Other concerns I've had focus on the cooling aspects of the turbo bearings, etc...during engine shut off. At one time the theory was that you needed to let the turbo engine idle for a few minutes so that the turbo could cool down, before shutting off the engine.
I'm not sure these are concerns with modern turbo engines. I've followed the Ford turbo engines and given that they are common in a vehicle such as the F 150 (commonly used for towing, heavy loads, etc.) to my knowledge...turbo failure is not common and the turbo seems to last the lifetime of the truck. I also don't know if a 'cooling' off period at idle is required with modern turbos.
We are thinking of replacing our vehicle over the next couple of years and considering a new Honda Accord Sport model with a turbo 2 liter four cylinder (around 252 hp/ 273 lbs. ft. torque), 10 speed automatic (not CVT)...and before we go that way, wonder about additional care and maintenance of a modern turbocharged engine whether in car or light truck.
Les
I've never had a turbo engine, just naturally aspirated engines and for years I've stayed away from turbochrged engines, because of concerns about turbocharger longevity. Some over the years have said that the turbo unit is more like a service items, something that can be expected to be replaced over the lifetime of an engines.
Other concerns I've had focus on the cooling aspects of the turbo bearings, etc...during engine shut off. At one time the theory was that you needed to let the turbo engine idle for a few minutes so that the turbo could cool down, before shutting off the engine.
I'm not sure these are concerns with modern turbo engines. I've followed the Ford turbo engines and given that they are common in a vehicle such as the F 150 (commonly used for towing, heavy loads, etc.) to my knowledge...turbo failure is not common and the turbo seems to last the lifetime of the truck. I also don't know if a 'cooling' off period at idle is required with modern turbos.
We are thinking of replacing our vehicle over the next couple of years and considering a new Honda Accord Sport model with a turbo 2 liter four cylinder (around 252 hp/ 273 lbs. ft. torque), 10 speed automatic (not CVT)...and before we go that way, wonder about additional care and maintenance of a modern turbocharged engine whether in car or light truck.
Les
