Article in Motor Trend claims EcoBoost Mustangs are getting progressively slower. - Mustang Evolution

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Old 06-09-2016, 10:50 AM   #1
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Article in Motor Trend claims EcoBoost Mustangs are getting progressively slower.

Hard to argue with their findings:

Why Are EcoBoost Mustangs Getting Slower? - Motor Trend

Sure sounds like Ford may have changed the engine programming.
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Old 06-10-2016, 07:42 AM   #2
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Old 06-10-2016, 08:17 AM   #3
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"EcoBoom"=detune. Nothing a good aftermarket tune won't take care of but could see this coming a mile away. Still probably a better buy than the V6 for an entry level Mustang if you want power for cheaper but... if I just wanted a DD I'd probably get the V6.
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Old 06-10-2016, 09:23 AM   #4
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It's very odd that the engine seems to dump boost between shifts -- and that it occurs between different shifts on different acceleration runs. It would certainly be disconcerting to be making a run and have the engine fall on its face when you quick shift to second gear.
When Car and Driver found that the EB was a dog on regular gas......Motor Trends results make me wonder if, when they buy premium gas, they are truly getting the octane they are paying for.
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Old 06-10-2016, 12:11 PM   #5
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I have a 2.0 in my 2014 Escape, and also in my girlfriends 2015 Edge. We can't feel any difference using 87 octane. Ford claims it costs you 9 HP. I can tell the difference in my Merkur XR4TI. That has a intercooler, cam, big valve ported head and pimp software. It really runs poorly on 87. With a manual there is a drop off in boost unless you powershift. Maybe they are letting up when shifting. Would be interested in Automatic times. I also think heat is a factor also in hard testing.
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Old 06-17-2016, 07:24 PM   #6
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My wifes 14 Eco Fusion doesn't get the milage from a tank of gas as it once did also.
I think the Eco engines are good on paper but not all that when it comes to fuel milage and power in real world driving.
It gets similar milage to my 3.7 mustang when I had 2.73s in her.

They have good numbers for the displacement size but when you actually use that power it trades off to a larger displacement engine when it comes to fuel consumption which kinda defeats the whole purpose Imo.

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Old 06-17-2016, 08:40 PM   #7
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Technically speaking, their most recent car ran a slower time but a faster mph, so that's not saying the car is making less power.

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Old 06-17-2016, 09:24 PM   #8
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I'm positive all the eb4's are making similar power. The thing is that ford is limiting the power between and just after the shifts. This is likey to presreve the drivetrain. Gm and other manufacturers do this. On gm vehicles its called torque management. The drop in performance looks identical to the gm vehicles that have torque management.
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Old 06-17-2016, 10:15 PM   #9
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Good info, I wasted aware of this.
My wife's fusion just doesn't perform as well as when we bought it, power and milage wise. Maybe I'm just crazy lol.

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Old 06-17-2016, 10:24 PM   #10
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Quote:
Originally Posted by Ish416 View Post
I'm positive all the eb4's are making similar power. The thing is that ford is limiting the power between and just after the shifts. This is likey to presreve the drivetrain. Gm and other manufacturers do this. On gm vehicles its called torque management. The drop in performance looks identical to the gm vehicles that have torque management.
Ford has torque management also. This is why the only solution to the abysmal throttle response of every 2011+ Mustang (does not matter which engine in my experience) is to go with a standalone powertrain controller. No more torque management, but that powertrain warranty is just a fond memory.
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