Bug, does that mean you have developed an engine which coughs and splutters noisily first before it quits?
I have suffered an SEP engine failure (albeit a 1985 Ford Escort on the outside lane of the M25 of a Friday evening!) and can confirm that there were enough warning signs in order for me to get the indicators on and move over (relatively safely) to the hard shoulder!
It seems from previous posts that ~ 2 seconds is about right.
Cheers
Whirls