Quote:
Originally Posted by Old Mechanic
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?).
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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.