optimal air temp - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 2 (permalink) Old 07-03-2008, 02:12 PM Thread Starter
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optimal air temp

I've been reading the "optimal fuel temp" thread and was wondering is there an optimal air temp for the air going into the engine? If so is that temp engine load sensitive? My thinking was since a diesel gets better MPGs during summer vs winter that there must be the perfect inlet temp for a diesel unless the MPG difference is all in the winter blend.

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post #2 of 2 (permalink) Old 07-03-2008, 04:05 PM
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Re: optimal air temp

As far as intake air temp goes the cooler the better. That is why we have a charge air cooler (intercooler) to cool the air back down after compressing it via the turbocharger. Cooler air is more dense and provides the same advanges that pressurizing (in our case turbocharging) the intake air yeilds. I know that everyone here hates Banks but they do have a good explanation of this here - http://bankspower.com/Tech_bigdensity.cfm

The mpg during the winter has to do with the fuel and the dense air makes more aero drag on the truck.

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