Trackhawk’s engine is lifted from the Dodge Challenger Hellcat, so it drips with motor sportderived toughness. It runs a forged-steel crankshaft, forged-alloy pistons, powder-forged conrods, and alloy heads fitted with hollow-stem, sodium-cooled exhaust valves. The supercharger runs at a max speed of 14,600rpm to deliver full boost of 11.6psi. Its twinscrew rotors are coated with a mix of polyamide and other nano resins to enable tighter clearance between the rotors. It’s a beast of a donk; its output comfortably eclipsing the 474kw/815nm made by the same-size (and also supercharged) Gm-sourced LS9 fitted to the GTS-R W1.