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Old 02-16-2015, 01:59 PM   #11 (permalink)
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Originally Posted by jimsiggy View Post
So your saying, just subtract the 14.5 in an Xgauge and turn the MAP into a boost gauge?
Yep. Official sea level standard pressure is 14.7, but elevation and other factors can change that.

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Old 02-16-2015, 03:37 PM   #12 (permalink)
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Driven in my traffic scenario and considering yours is a manual, I would expect about the same spread as the difference in highway mileage between my 2011 @38 and your ecoboost @ 44, with a slight bump for the manual in your car.

My guess if the 1.0 was mine would be around 52-55 MPG average compared to mine at 46 MPG. I never used engine off coasting and would advise you not to use it, with the ultra high speeds your turbo encounters (close to 150k RPM?).

If you decide to ignore that advice then use the best synthetic oil you can buy, but you may encounter a warranty rejection due to shutting the engine off when moving as being not standard operational parameters.

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Old 02-16-2015, 03:43 PM   #13 (permalink)
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Atmospheric pressures can vary significantly from a high of 31 inches to below 26 in the center of a very powerful hurricane. MAP at 100% is the same as atmospheric pressure.

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Old 02-16-2015, 07:39 PM   #14 (permalink)
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Originally Posted by Old Mechanic View Post
I never used engine off coasting and would advise you not to use it, with the ultra high speeds your turbo encounters (close to 150k RPM?).
Thanks for the input.

You know one of the neat things Ford did with this motor, is low friction coatings. This thing coasts in gear almost as well as it coasts in neutral. When I rev the motor out of gear, it takes 6-7 seconds(at least twice as long as a normal motor) or more for the motor to return to idle. There is no need to kill engine when coasting; it has fuel cut-off on decel; I have confirmed this with my scangauge. As long as the engine is up to temp and the rpm's stay above idle speed, the motor is de-fueled.

If I am in cruise control and hitting hill, every time I go down a hill, it's de-fueling the motor.

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Old 02-16-2015, 08:06 PM   #15 (permalink)
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Welcome to the site and good luck with the project. I think those little 1.0 ecoboosts are pretty cool.
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Old 02-16-2015, 08:26 PM   #16 (permalink)
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Quote:
Originally Posted by Old Mechanic View Post
Atmospheric pressures can vary significantly from a high of 31 inches to below 26 in the center of a very powerful hurricane.
It also depends on elevation. Average atmospheric pressure at 7000' elevation is around 23.9 " Hg (inches of mercury) or 11.7 PSIA.
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Old 02-16-2015, 09:31 PM   #17 (permalink)
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Originally Posted by jimsiggy View Post
If I am in cruise control and hitting hill, every time I go down a hill, it's de-fueling the motor.
Gotta love that DFCO! Welcome to ecomodder
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Old 02-17-2015, 06:39 PM   #18 (permalink)
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Quote:
Originally Posted by jimsiggy View Post
Thanks for the input.

You know one of the neat things Ford did with this motor, is low friction coatings. This thing coasts in gear almost as well as it coasts in neutral. When I rev the motor out of gear, it takes 6-7 seconds(at least twice as long as a normal motor) or more for the motor to return to idle.
Thats the big flywheel that generates that effect not the low friction stuff. Needed to smooth out the 3 cylinder balance cycles. Also when you lift off your electronic throttle, the motorised throttle plate is held slightly open for emissions reasons.

The clever part about these engines is their ability to run in Lamba under boost conditions, their dynamic compression ratio is also quite high in normal driving giving a high compression ratio over much a greater driving range.
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Old 02-17-2015, 07:21 PM   #19 (permalink)
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Quote:
Originally Posted by cptsideways View Post
Thats the big flywheel that generates that effect not the low friction stuff.
At first, that's what I thought too, and I agree that the flywheel effect has much to do with it. But with heavy flywheels, engines are usually slow to respond to throttle; this engine is not; it's snappy. All this considering a bit of turbo lag too.

Here is a good tech story explaining it. Ford

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