USA RWD /// platform file
Dodge Challenger / Charger Hellcat build guide
6.2 supercharged HEMI V8. What the stock hardware reliably supports, where it breaks first, and the fastest safe path to more.
The Dodge Challenger / Charger Hellcat makes 707 hp stock at roughly 4,450 lb (6.3 lb/hp). Its stock internals are good for about 900 hp, the fuel system for around 800 hp, and the stock supercharger setup supports about 820 hp. Below is the limit sheet carbuildcheck analyzes against, plus the platform's documented weak points.
01 Factory card
Stock power707 hp
Curb weight4,450 lb · 6.3 lb/hp
LayoutRWD
InductionSupercharged
02 What stock parts support
Engine internals~900 hp
Fuel system~800 hp
Induction ceiling~820 hp
Clutch (manual)~650 hp
Transmission (auto/DCT)~850 hp
Cooling (sustained)~750 hp
Community-documented crank-hp planning figures, conservative by design. How these are used in the score →
03 Where it breaks first
Traction is the entire project. Before any power mod, the Hellcat’s money goes to tires, suspension and seat time.
Consistent 10-second passes want a driveshaft and half-shaft plan — the driveline sees launch shock before the engine sees strain.
04 The typical path
Tune → pulley → fueling. Blower cars scale fast; heat and fuel are the guardrails.
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