Ford Announces Three More Turbo Engines


Ford has rolled out only one of its EcoBoost turbo engines — a 3.5-liter V-6 found in the Taurus, Flex and Lincoln MKS  and MKT — but the company says it is going all-in on the technology and will add three more globally by the end of 2010.

In the U.S., we’ll see a 2.0-liter turbocharged four-cylinder in the upcoming Ford Explorer — as we learned in January — and the 2011 Ford Edge, which goes on sale this summer, although the EcoBoost might not be available at launch. There was no mention of the Lincoln MKX getting the same engine.

A 3.5-liter turbocharged V-6 engine will also find its way into rear-wheel-drive-equipped F-150s.

European shoppers will get to pick a 1.6-liter turbocharged four-cylinder in the C-Max small van.

All three engines promise power and performance akin to larger engines while returning mileage of smaller ones. However, the current EcoBoost applications carry a higher price tag than base models, like engine upgrades of old. Except now, you’re not upgrading to a V-6 or a V-8, you’re upgrading to a turbocharged four or six.



The ecoboost that is used in the Taurus, Flex, MKS, and MKT is a 3.5 liter V6, not 3.7


Amuro Ray

I've questioned this tactic before, but neither DT here or anyone else has provided a more detail feedback. Asked "Ask" and still no reply (so I asked again today!) - how can you use gasoline turbo engine for trucks or SUVs, when heavy loads are expected for these sort of vehicles? Has technology advanced to the point where turbo engines can now provide continuous boost for lengthy power demand? On all my research so far, as well as my prior experience on owning a 90 turbo car, turbo components are NOT built to last as long as the engines themselves (yet you must fix the turbos if they have issues, even though the engines are perfectly fine, or the engines will be damaged too!). One major issue here is that turbos are for "on-demand" power only, and continuous turbo boost will effectively kill the turbos quickly. If this is still the case, what benefits will there be for using turbo engines on SUVs or PUs? Save gas, but pay more (for engine damage) in a short time? More importantly, if constant turbo boosts are required to cope with power demand, you aren't really saving much gas anyhow...Again, I'm talking 'bou GASOLINE engine here, not diesel turbo engine, which is of a different beast.


@Amuro Ray:
That crossed my mind too. Some idle speculation on my part:

1) Tow ratings may be lowered for trucks with gas turbo engines.

2) Lots of people who buy trucks don't carry heavy loads or tow a lot, so the issues you raise might not apply to them.

3) Gas turbo engines will only be one possible engine choice, so people who need the powerband of diesel would probably be able to get it (at least for some truck models).

Again, this is just my speculation.


AR: You are being illogical. If some other component fails, like, say the fuel pump, you'd object to fixing that even though the engine is perfectly fine? You can't take part of the system in isolation. If a fuel injector fails, you have to replace it even though the rest of the engine is perfectly fine. The same applies to dozens of other components.

In any case, any turbo engine is continually producing boost at anything above idle, not just "on-demand". The turbo doesn't stop spinning when you don't have the loud pedal flat on the floor.

Your one example of a bad one does not prove anything anyway, just as one of mine currently with 115,000 non-gentle miles on it doesn't prove they don't fail.

Amuro Ray

@ Graham,

I was actually asking a question, not stating a fact. Thus, I'm not out to proof anything. I do wanna refer y'all to this article from car talk:
Now, it was from 1992, so I'm not sure if it's still relevant...but honestly, I don't think much have changed in the design of a turbo engine, other than better quality parts are now being used (for some auto manufacturers). As far as "on-demand" - its from Ask KM's article, not me. Of 'coz, both he and I are stating POWER, and not turbo spinning all the term when using the term "on-demand." Anyhow, both articles do point out that power from a turbo engine is indeed on-demand and on demand only. Car talk's article actually states that turbo will shut down when not in used, which I did observe 0 psi on my ex-300ZX Twin Turbo during cruise driving. But because I don't know how today's turbo engine work, especially in the case with SUVs and PUs, plus the fact that old articles were stating that turbo engines weren't built for towing, that's why I asked the question.
P.S. since turbo engine vehicles have not been popular in the last 20 years, many don't know that turbo fail = engine fail. Same doesn't apply vice versa, however.


I would skip turbo engines altogether. Just another part to fail with a great bang $$$. And what is so great about turbo? How many MPG advantage it gets, 2-3?
Why manufacturers don't think about electric-boost engines?



All power is "on-demand" in as much as there is more delivered the harder you press the throttle pedal. Turbos are no different in this regard: there is no mechanism to turn the turbo on and off. It is always there spinning, and above idle providing at least some some boost.

If you have a boost gauge, it is connected to the inlet manifold *after* the throttle body. It tells you the manifold pressure, not the pressure gradient across the turbo. In fact you can have a substantial manifold vacuum while the turbo is still producing full boost. This occurs when you sharply close the throttle after accelerating hard. This produces a shock wave back to the turbo which can cause severe turbo damage, which is why production car turbo installations use a bypass valve or blowoff valve to dump the excess pressure on abrupt throttle closing. (You can hear a blow-off valve working on quick upchanges as they dump the excess pressure to atmosphere. Bypass valves dump the excess back into the inlet tract upstream of the turbo and are usually inaudible - and work better with engine management as a result.)

A turbo fail does *not* equal engine fail. That's why many people don't know it: because you are wrong.

There's several possible turbo failures. A severe failure may cause turbine fragments to pass into the intercooler (almost all turbos have intercoolers) where the fragments will most likely remain. There is some chance the engine will be damaged, however, other types of external problem can cause engine damage.

Amuro Ray

Thx 4 the explanation, Graham. Now back to my original question - are turbo engines built to endure heavy load or towing? Seems like you are saying yeah, yet those mechanics are saying no (for those older turbo engines).

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