With gas prices putting many Americans near the breaking
point -- and sending sales of full-size trucks and SUVs downward -- Ford is
looking to downsize
its powertrain offerings for the F-150. According to Ford Product Chief
Derrick Kuzak, the F-150 may be offered with an EcoBoost four-cylinder engine. The turbocharged four-banger would provide in excess of 260
HP and 300 lb-ft of torque. For comparison, the current base V6 provides 202 HP
and 260 lb-ft of torque, while the smallest V8 offering is rated at 248 HP and
294 lb-ft of torque.
Dan Kapp, Ford's Powertrain Research and Advanced
Engineering Director, went on to praise EcoBoost turbocharging and stated,
"In probably the most extreme cases, we’re going to be downsizing on the
order of 40, 50 percent. That would take, for example, a three-liter V6 down to
a two-liter four-cylinder engine. A 2.5-liter four-cylinder could be something on the
order of 1.5-liters."
With these factors, an EcoBoost six-cylinder engine can
produce like an eight-cylinder and a four-cylinder engine like a six."
The EcoBoost 4-cylinder engine for the F-150 would only be available
on a select few trim levels. According to PickupTruck.com,
the engine will likely only
be made available on the regular cab 4x2 and 4x4 models. The introduction
of the EcoBoost four-cylinder engine will also help to boost Ford's Corporate
Average Fuel Economy (CAFE).
While the four-cylinder EcoBoost variant may boost economy on
the low end, Ford is also preparing a 3.5 liter V6 EcoBoost engine for the
F-150 in 2010. The engine eclipses the current range-topping V8 in the F-150
with 350 HP and 390 lb-ft of torque -- this compares with 300 HP and 365 lb-ft
of torque for the current 5.4 liter V8 engine.
The EcoBoost V6 will also manage to better the V8 in fuel
economywhen paired with a 6-speed automatic transmission. Fuel economy
is said to rise from 14 MPG /19 MPG (city/highway) to at least 16 MPG / 22 MPG.
quote: Diesel is not gasoline. The specific energy and burn type are completely different.
quote: "There are two forms of drag on a car; rolling resistance and aerodynamic drag. Rolling resistance (tyres and drive train losses) increases slowly, but constantly with speed. Aerodynamic drag increases as the square of the speed (V in km/h) and power required to overcome that drag increases as the cube of the speed.Power (Kw) = rolling resistance + V^3 Cd A / 76716 + rolling resistance"from http://www.nsxprime.com/FAQ/Miscellaneous/TorqueHP...So as I said the required horsepower increased to the 3rd power with speed.
quote: And again as I said, weight does not have much of an effect on mileage at cruising speeds.
quote: a car being driven at 50 mph in 4th gear will use more fuel than the same car being driven at 50 mph in 5th gear because in 4th gear the engine is spinning at more rpm's.
quote: A truck really needs its max torque at 1000-1500 rpm. 3400 rpm is way too high.
quote: My twin turbo S4 develops maximum torque at 1850 RPM.
quote: ...turbo cars can performs better than N/A cars if they are properly tuned...
quote: I still get 30 to 32 MPG at steady 75 MPH.
quote: I think the car companies are finally getting out of bed with Big Oil
quote: NO they have 3 cylinder cars, FROM FORD non the less, so why don't they sell them here?
quote: Because people wouldn't buy them. American's have a different mindset. We don't drive tiny cars. We have larger roads with wider streets. And enjoy having more space.
quote: I swear I think I'm going to hate the color green from now on because of how often I hear that word. Especially when there isn't a damn thing "green" about any of this crap.
quote: I dont know why you got rated down when you speak the truth.
quote: hat the truth isn't important anymore
quote: It depends on the turbo they use. A smaller turbo makes its boost more quickly but just tops out sooner.
quote: As far as supercharger efficiency, modern systems are so efficient its practically a non-issue. However, like with smaller turbos, the power curve can flatten out sooner. But on a truck, you're not looking to pull high revs.
quote: The EcoBoost V6 will also manage to better the V8 in fuel economy when paired with a 6-speed automatic transmission. Fuel economy is said to rise from 14 MPG /19 MPG (city/highway) to at least 16 MPG / 22 MPG.