Sometimes the oddest ideas come at night. I was just thinking about the rules of the new Hot Rod Pump Gas Drags and the restriction to pump gas, nitrous, and water for consumable fluids. While thinking about a 6.0L Gen III iron truck block with L76/92 heads and 2 turbos in a 4dr Nova wagon and how to intercool it I randomly hit on a bizzarre idea. Its not totally new and the very thing might have been proposed before and I just don't know about it. Thinking from the thermodynamics of an refriderent system I was originally thinking using the Nitrous to cool the water reservoir and then I thought why not cool the air directly with the nitrous using an expansion valve setup like in an AC evaporator core? Since you are using N2O as a refridgerant and its compressed off the car it will not consume engine power when being throttled across the expansion valve. The question is how much nitrous would be needed and what kind of energy consumption would the pressure drop consume to cool the intake charge down to the 40's or so. If you'd consume a whole tank a run its not really worth it for anything other than the finals but if its something you can consume about as fast as a regular N2O car does it might not be too bad for street strip guys who use an Air-to-Air normally on the street with lower boost and have this be used for the race track.
More mad musings from a bored and gearhead physicist,
More mad musings from a bored and gearhead physicist,