Quote:
Originally Posted by Ds650rida
Isnt most vacuum generated at idle? Coasting to a stop is just my driving habits. The only reason I can think of to keep the car in gear is to be able to potentially avoid an accident that required throttle to maneuver around. Or if you need to in order to keep your engine running (light flywheel or bov on maf setup)
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No, proper deceleration is parts both engine braking and pedal input, as can be seen by driving any Auto car: IE automatic transmissions do not switch into neutral, but instead engine brake as soon as deceleration begins, and you'll find your owner's manual likely alludes to this, too. Engine braking creates a buttload more vacuum which is amplified by the brake booster for the braking system over idle.
Also take into consideration that if you're not in gear, you're not going to be able to move. Not a whole lot of people have the ability to act in a panic situation like that and make a good outcome of it, and even when they do posses those instincts, other elements usually