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Ford EcoBoost V6 Engine  (Source: Ford)
EcoBoost is proving very popular with truck buyers

With automakers focused on increased fuel efficiency these days, the move to smaller displacement engines with turbochargers is happening at a rapid pace. Ford was one of the first to head in that direction on the domestic market with its EcoBoost V6 engine that has so far been used in the Taurus, F-150, Flex and several other Lincoln vehicles.
The F-150 with the EcoBoost twin turbo V6 engine has proven to be very popular. In fact, the combination of the F-150 and the EcoBoost is so popular that Ford is raising the sales forecast for the truck. Ford says the reason for the forecast upgrade is that the market demand for the EcoBoost F-150 has been greater than expected. 
Previously Ford had expected about 40% of the F-150 trucks sold to use the EcoBoost 3.5L engine. Ford is now predicting that about 45% of the F-150 trucks it sells to have the EcoBoost with a total retail sales number of about 100,000 in 2011. Ford full-size pickup sales -- including HD vehicles and fleet vehicles – are up almost 8% to 416,488 units through September 30.
Traditionally, the V8 is the engine of choice in the F-150 and truck market overall. Ford does provide a version of the 5.0-liter V8 used in the Mustang GT for F-150 buyers that still want eight cylinders on tap.
During the last few months, the WSJ reports that the EcoBoost has accounted for 42% of F-150 sales. This is in part thanks to the robust power and towing capacity mixed with fuel economy averaging 18 mpg compared to the 14-17 mpg for V8-equipped trucks.

Source: WSJ

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RE: I'd pick the V6
By caseyse on 10/17/2011 11:45:06 PM , Rating: 2
Direct injection requires a fuel system that delivers 2k thousand plus PSI, over 50 times more than a non direct injected engine - complex and expensive. Turbo chargers increase cylinder pressures, have wearable bearings/seals, and increase heat (AITs, engine oil.) Assuming there are no engineering defects in the EcoBoost, it's easy to conclude that a smaller displacement engine with the added stresses and complexity of forced induction and direct injection is going to be less reliable and costly to repair than a low tech normally aspirated engine. One is going to pay $750 added cost for the EcoBoost over the 5.0 to save about $2,500 in fuel over 100k miles. This might seem nice, but if you had to replace it's high pressure fuel pump, rebuild those turbos, or replace a leaking head gasket out of warranty, is going to eat into those few dollars in savings.

On a side note, I have a normally aspirated Viper (700hp) and a forced induction Vette (1k hp) that I beat the snot out of road racing. The forced induction cars, stock or modified, push up the AITs and heat soak after a few laps. When hot, the engines retard ignition and the power drops sharply compared to the normally aspirated cars. I understand we are talking about a truck, but pulling a heavy load on a summer day, I suspect the EcoBoost will see added heat over the 5.0, and will pull timing resulting in lower power. Also all direct injection engines are exhibiting excessive carbon build up on their valves, which on many cars have lead to significant decreases in mileage and power after as little as 40k miles. Ford claims they have reduced this through their head design, but it can't be eliminated and comes with any direct injection design - due to the lack of atomized fuel passing over the valves, which serve to keep them clean. Pros and cons to added technology.

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