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Resplendent in fiery orange, blue, and silver aluminum, a model of the Hellcat engine sat on its stand as engineers discussed technical details of the Chrysler Hellcat powertrain, including the downstream devices that deliver all this power and torque to the aggressive rear wheels.

integral coolers

valvesTo be used in the 2015 Charger and Challenger, it is a nicely executed piece of engineering, especially with the claimed 22 mpg (highway) fuel efficiency. The engine does not have cylinder cutoff, making the 22 mpg figure more impressive.

Something that intrigues me is that the fuel flow is directed to impinge onto the back face of the inlet valve, with almost a continuous flow from its injectors at higher rpm. This is said to be for cooling, but it seems like an inefficient way to do it.

Having all this power on tap must mean that all loose objects, including companions, should be securely mounted (if that is the appropriate phrase) within the confines of the cabin, for fear of being pressed into a wad against the back window. A child bolted into the back seat could be considered to be in training for the G-forces of a mission to Mars.

http://www.allpar.com/mopar/hemi/hellcat-deeper.html
 

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Cool ride with 707 hp supercharged hemi and it's priced well too...

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