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Dodge//SRT Engineers Take The Heat… Literally!

How Dodge//SRT Engineers Deal With The Heat On The SRT HELLCAT Redeye...

Heat is the enemy of any high-performance powertrain, so Dodge//SRT engineers looked for more ways to keep the intake air as close to the optimum temperature as possible on the all-new 2019 Dodge Challenger SRT HELLCAT Redeye’s 797 horsepower 6.2-liter supercharged HEMI V8.

2019 Dodge Challenger SRT HELLCAT Redeye Widebody. (Dodge).

One key to the engine’s imposing power output is air – and plenty of it. The new, low-restriction, dual snorkel hood is fully functional and sealed to the air box.

When combined with the Air Catcher headlamp and an inlet near the wheel liner, these three sources give the SRT HELLCAT Redeye’s high-output engine an 18% greater air-flow rate than last year’s SRT HELLCAT engine (1,134 cubic feet per minute). At full power, this is the equivalent flow rate to 89 adults simultaneously emptying their lungs in 1 second.

2019 Dodge Challenger SRT HELLCAT Redeye Widebody. (Dodge).

The revised air inlet path on the new dual snorkel hood results in an intake air temperature reduction of 4 degrees Fahrenheit.

The innovative, award-winning SRT Power Chiller™, standard and only available on the Challenger SRT HELLCAT Redeye, diverts the air-conditioning refrigerant from the interior cabin to a chiller unit mounted by the low-temperature circuit coolant pump. Charge air coolant, after being cooled by ambient air passing through a low-temperature radiator at the front of the vehicle, flows through the chiller unit, where it is further cooled. The chilled coolant then flows to the heat exchangers in the supercharger.

The SRT Power Chiller™ lowers the intake air temperature further on the Challenger SRT HELLCAT Redeye, resulting in improved performance.

2018 Dodge Challenger SRT Demon After-Run Chiller. (Dodge).

The After-Run Chiller, also an industry first, minimizes any heat soak effects, allowing the engine to stay in optimum operating temperature. When the engine shuts down, the After-Run Chiller, now standard across the Challenger SRT HELLCAT model lineup in 2019, keeps the engine’s cooling fan and low-temperature circuit coolant pump running to lower the supercharger/charge air cooler temperature. The driver can track the supercharger coolant temperature on the SRT Performance Pages in the 8.4-inch Uconnect touchscreen and know in real time when the supercharger is at the optimum temperature for another run.

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Robert S. Miller

Robert S. Miller is a diehard Mopar enthusiast who lives and breathes all that is Mopar. The Michigander is not only a Co-Editor for MoparInsiders.com, 5thGenRams.com, and HDRams.com but an automotive photographer. He is an avid fan of offshore powerboat racing, which he travels the country to take part in.

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