[MTron]

Originally Posted by speedster

You have great posts and you really know your stuff so please don't take this the wrong way, but it does still have an effect. There is roughly a 1% hp increase per 10 degree ambient Fahrenheit temp drop. Same as if you run your car at the strip on a 90 degree day versus a 50 degree day.

Originally Posted by MadMaxx

Cold air intake is an NA bit bud, if you're supercharing than ambient temps post compressor aren't going to be affected by the incoming charge temp (not in the context of what minor changes in ambient can do anyway...)

Yea, i was going to say....a compressor introduces a fixed temperature increase depending on the compression ratio. (aside from the heat added from friction, the engine and other fixed sources, which wont change based on the air intake config),

basic gas law....increased pressure, without a decrease in volume leads to an increase in temperature, since the intake manifold and supercharger casing dont change size, its a fixed volume, so any increase in pressure will increase temps proportionately (PressurexVolume=k x Temperature)

So since the super charger only adds a certain amount of heat any decrease in temp of the incoming air will also decrease the temp of the charge air from the super charger.

also since the super gets gets power from the engine (obviously) any decrease in resistance to bringing in the air results in the supercharger drawing less power away from the engine, leading to less parasitic power loss

A good cold air intake (actually draws in cold air...not engine bay air) will benefit all forms of intake systems....turbo, super, N/A