Ferrari Mailing List: Re: Elementary engine question -- NFC

[Grahame Reinthal (grahame]

Have you ever had a complete, instant ignition failure? The car stops pretty quickly (feels like you hit the brakes) because with no spark there is thus no burnt fuel to keep things moving along and so it is just the vehicle inertia that keeps you rolling, but not for very far, unless you are pointing down-hill.

 

On the other hand, drive along a flat road at cruise speed, then take your foot off gas. The car slows gradually, suggesting that the motor is still receiving enough fuel to match the engine speed as the flywheel slows down, until it eventually slows to a stop and idle.

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From: Larry Bard [mailto:larrybard [at] hotmail.com]
Sent: Wednesday, 5 September 2012 12:24 PM
To: Grahame
Cc: The FerrariList
Subject: [Ferrari] Elementary engine question -- NFC

 

(Heck, things seem quite slow anyway.)

Is it generally true, at least with modern manual cars, that with the car in gear, but one's foot off the accelerator pedal, little or no gas will be fed to the engine, even if the RPMs are well above idle?

Thanks.

Larry