Probably feasible. Not something I would ever bother doing though.
On a diesel it makes sense cause they(can) take forever to warm up, my truck will not warm up unless the rad is blocked and the idle is bumped up which happens automatically. The high idle speed is then based on intake air and coolant temps. On my 02' it would bump the idle and cut fuel to 2 cylinders putting more of a load on the engine and making it sound like an old tractor. The neighbors really hated that one.
If they thought it made sense in gas engines I think it'd at least be an option(other than in applications running a pto).
We use block heaters when it's cold. When it's hot out open the windows and crank the ac for a minute. The compressor doesn't run constantly when the ac is on anyways, the only thing reving it up would accomplish is burn more gas.
Last edited by Fummins; 03-07-2019 at 09:21 PM.
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View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)