It’s not the gas but the oxygen that goes boom in your engine; stuff more air into your cylinders, get more power. To achieve the SRT Demon’s crazy acceleration, Dodge’s necromancers of speed flow the breeze over what is essentially an air-conditioning compressor before the supercharger crams the air into its V-8. Colder air holds more oxygen, creating a bigger boom and, eventually, 840 glorious hell ponies.
https://www.popsci.com/top-automotive-innovations-2017#page-4
http://moparconnectionmagazine.com/2018-demons-srt-power-chiller-wins-2017-popular-science-best-of-whats-new-award/