With the Eco doing so well and loved by many and bragged about by Ford. Why is it not offered in the F250 ? I love mine but I'm curious.

They can't make em fast enough now.

My guess, and it's only a guess:It's a light duty truck with a light duty engine with a low, light duty cycle. My drag engine can put out a lot of power but it's duty cycle is VERY short and low. There is a reason truck engines with high duty cycles are very heavy.

Turtle n Peeps wrote:My guess, and it's only a guess:It's a light duty truck with a light duty engine with a low, light duty cycle. My drag engine can put out a lot of power but it's duty cycle is VERY short and low. There is a reason truck engines with high duty cycles are very heavy.Your guess sounds pretty reasonable.

That combo is what I'm waiting for. The 3.5 Eco may not be a good fit due to the extra weight of the SuperDuty vs the F150. Like most turbo-charged engines, the 3.5 is weight-sensitive, as far as fuel mileage goes. It responds nicely to any increased need for power, whether its caused by increased weight of whats being moved by the engine or by increased weight on the go-pedal, but at the expense of fuel mileage. I've noticed that if I hook up even a small low-drag trailer, like my open ATV aluminum trailer with 2 ATV's on it, total weight of less than 2000 pounds, fuel mileage suffers. I suspect the same thing would happen in the heavier SuperDuty. As an example of that, look at the little 2.0 Eco 4-banger. In the Focus ST, that engine is very, very, quick for 2 liters. The same engine in the much heavier Explorer is a dog. While there may be a bit of difference in the engine programming in those 2 platforms, it's mainly all about the weight difference. What I'm hoping for is a turbo'ed version of the 5.0. That would have considerably more power than the 6.2, and fuel mileage should be much greater. Ford is introducing 10 new models for 2014, maybe that will be one of them. I'd be in the ordering line if that happened.Hard to believe the 3.5 EcoBoost is almost 5 years old. It was offered in the Flex starting in March, 2009.

OH48Lt wrote:What I'm hoping for is a turbo'ed version of the 5.0. That would have considerably more power than the 6.2, and fuel mileage should be much greater. Ford is introducing 10 new models for 2014, maybe that will be one of them. I'd be in the ordering line if that happened.I have a theory with zero knowledge behind it... Perhaps Ford is working on a larger turbo gas engine to put in its 3/4 and 1 ton trucks. I agree that the 3.5 will probably lack fuel efficiency and power in a F250 with a GVWR of 10,000, compared to the F150 with a GVWR of 8,800.I **THINK** the Ecoboost was a new engine from the ground up. If that is the case, I don't think they just slap a couple turbo's on an existing engine... I think they design a whole new engine from the ground up.With all my experience in Ford R&D (none, for those wondering...) I think they probably wanted to see how the truck buying public would respond to the turbo gas engine before they went all in.It seems like Ford is pretty happy with the engine, and from this forum and talking to owners at the campground it sure sounds like the customers are happy with it too. Time will tell, but it seems like a winner for Ford.

Ecoboost engine question | Good Sam Community

Hannibal
Explorer
Jan 01, 2014
pronstar wrote:
The proof is in the pudding.
There's a reason why we don't yet see high boost, small displacement gas engines in heavy-duty/high duty cycle applications.

Until we start seeing them en masse, large displacement gas and/or turbo diesels are where it's at for heavy duty/heavy duty cycle applications.

Until that time comes, it's a moot discussion.

We don't see small displacement car sized turbo diesels such as the 1.8L TDI or 5.9 CDT in heavy duty/high duty cycle applications either. But keeping it in perspective, a 14L TD is small displacement for a 70k lb OTR truck. Much like a 3.5L engine for a 15k lb GCW pickup and camper.
Imagine the size of engines OTR trucks would require if trucking companies had to please truckers' irrational fears of the forbidden downshift on every hill or God forbid, not towing in top gear. They too would start losing carrying capacity due to engine weight.
pronstar
Explorer
Jan 01, 2014
The proof is in the pudding.
There's a reason why we don't yet see high boost, small displacement gas engines in heavy-duty/high duty cycle applications.

Until we start seeing them en masse, large displacement gas and/or turbo diesels are where it's at for heavy duty/heavy duty cycle applications.

Until that time comes, it's a moot discussion.
thomasmnile
Explorer
Dec 31, 2013
Turtle n Peeps wrote:
Marty you can be like my buddy and put a 3208 in a 94 Ford 4x4. :E
I said he was crazy but......he's doing it anyway. :R

Was at the local Home Depot a month ago. As I walked to the store from the parking lot a waaay lifted early 90's vintage Ford F-Series 4x4 with an enormous hump in the hood and a considerable amount of engine block hanging below the frame caught my attention. Talked to the owner as he was leaving, he put a DD Series 60 in it....at considerable expense and modification. Thought he was kidding me until he fired it up and drove away and I heard the unmistakable sound that a DD winding up makes......
bmanning
Explorer
Dec 31, 2013
Hannibal wrote:
The 5.7L Hemi was put through 300 hrs of full load full throttle 5300 rpm dyno testing during R&D. I believe and my experience has shown the newer gas engines to be a lot tougher than we give them credit for. The 3.5L Ecoboost is no different. I believe it went through the paces as depicted in the commercial. Read no more or less into it though. The creative mind can deceive and advertisers know this very well. Remember the Hemi ads? People confused them a lot and the writers knew they would.

Couldn't agree more.

A lot of folks still have 1970s-1980s gassers in mind when they declare longevity to still be an advantage of diesel.

Diesel does have its advantages, but long engine life is not exclusive to diesel engines anymore.

As a consumer, assuming proper maintenance, I'd expect 250,000mi+ out of any modern gasoline truck engine and would be very disappointed if it came up short.
8iron
Explorer
Dec 31, 2013
Cast iron blocks are used for heavy duty work engines. Aluminum blocks are used for performance engines. Nothing against the EB but there is a reason Ford engineered a completely new gasser for their Super Duty instead of using the EB for their " heavy duty" line of trucks.
Hannibal
Explorer
Dec 31, 2013
The 5.7L Hemi was put through 300 hrs of full load full throttle 5300 rpm dyno testing during R&D. I believe and my experience has shown the newer gas engines to be a lot tougher than we give them credit for. The 3.5L Ecoboost is no different. I believe it went through the paces as depicted in the commercial. Read no more or less into it though. The creative mind can deceive and advertisers know this very well. Remember the Hemi ads? People confused them a lot and the writers knew they would.
otrfun
Explorer II
Dec 31, 2013
Hannibal wrote:
Bmach wrote:
Anyone ever watch the Ford Eco torture test video they put out? If not it is worth the time.
I just watched it again. Very impressive by any means.

http://www.youtube.com/watch?v=8tEqwXrqzH4
I've seen this video before. Yup, it's pretty impressive, but it is a Ford promotional video so you can't take it too seriously.

I will say this. If I was trying to convince someone the 3.5 Ecoboost might last, maybe a week or two in a realworld, Super Duty F250/F350 . . . well, what can I say . . . this is the video to watch. You really gotta smile . . . even if one only finds 10% of this video believable, it's still pretty impressive!
Hannibal
Explorer
Dec 31, 2013
Bmach wrote:
Anyone ever watch the Ford Eco torture test video they put out? If not it is worth the time.

I just watched it again. Very impressive by any means.

http://www.youtube.com/watch?v=8tEqwXrqzH4
goducks10
Explorer
Dec 31, 2013
Sounds like Ford just needs to put the 3.5 in every truck. Detune it for economy and tune the crude out of it for the F450. Just think how much money they could save by not reworking their 6.7 PS every couple years.:)
Turtle_n_Peeps
Explorer
Dec 31, 2013
Marty you can be like my buddy and put a 3208 in a 94 Ford 4x4. :E
I said he was crazy but......he's doing it anyway. :R

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