Turbo timer question

[scrollmaster]

99F250 Early Model 4WD 7.3L Crew Cab

I'm about to have an alarm system installed this week (Omega Crime Guard 850i5) and one of the options is a turbo timer that can be set for 4 options when the ignition key is turned off...

1. Engine dies immediately (default)
2. Engine continues to run for 1 minute
3. Engine continues to run for 2 minutes
4. Engine continues to run for 3 mintues

... is there any reason that serves the turbocharger to let the engine idle for 1-3 minutes before shutting down?

Just curious

[BadAss01F250]

yea it allows the turbo to safely cool down so u dont shut the truck off when its too hot and lengthens the life of your turbo

[Lord Tauk]

Might as well use it since it's an option;

Another option is an pre-turbo EGT gauge, you can just watch it until it creeps down below 400 degrees then shut down.

[jphelzer]

It's a good option. Until I get gauges, I just let mine idle for 2-3mins after I drive for 30-40mins or more. If I'm just doing my 8 mile commute, I just let it idle for about 1 minute while I get my work stuff together...

[scrollmaster]

Thanks guys. This is something I'll definitely use then.

[jphelzer]

Would you mind sharing how much the alarm costs? I wouldn't mind getting one either, just curious...

Thanks.