This is basically what TURBO TIMERS used to do.
I have not bothered in a long time as modern turbo engines have come along way. I know after I drive my wife's Saab it kicks on the fan after the car has been shut off automatically.
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'98 Dinan/RMS stage 2+(VAC cams, CES Cutring etc)
'15 Buick Regal "T"(wife)
'06 Saab 9-5 Combi 5mt (full suspension, LSD, clipped turbo etc)
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