(May 21, 2014) AUBURN HILLS, Mich. — The newly consolidated Dodge and SRT brands are launching out of the gate at full throttle, introducing the new 600-plus horsepower 2015 Dodge Challenger SRT with a Hellcat engine and its stablemate — the 2015 Dodge Challenger SRT — just one month after taking the wraps off the new Dodge Challenger 392 HEMIScat Pack Shaker at the New York Auto Show.
 
Driven by the five SRT performance hallmarks, the new 2015 Dodge Challenger SRT and Challenger SRT with the Hellcat engine are re-designed and totally re-engineered to be the most true-to-form muscle coupes on the market with performance-enhancing technologies inside and out. The Dodge Challenger SRT Hellcat will feature the most powerful V-8 engine ever produced by Chrysler Group — the supercharged 6.2-liter HEMI V-8.
 
“The new 2015 Dodge Challenger SRT Hellcat is the ultimate performance muscle car,” said Tim Kuniskis, president and CEO – Dodge Brand. “Dodge is the Mainstream Performance brand, and now combined with SRT, we are able to unleash a true GT car with an all-new driver-focused interior and the TorqueFlite eight-speed transmission combined with the most powerful V-8 Chrysler has ever produced. The Challenger Hellcat has been released!”
 
The 2015 Dodge Challenger SRT coupes will be built at the Brampton (Ont.) Assembly plant. Production is scheduled to begin in the third quarter of 2014.
 
The Challenger SRT Hellcat's new supercharged 6.2-liter HEMI V-8's 600-plus horsepower will be the highest of any V-8 engine in Chrysler Group’s celebrated history. The all-new V-8 engine can be mated with an upgraded six-speed manual transmission or a beefy, new TorqueFlite eight-speed automatic — the first such gearbox ever offered in the Dodge Challenger SRT’s time-honored segment.
 
This new engine is Dodge and SRT’s first application of V-8 supercharger technology, delivering the full brand experience with fresh potency.
 
The breakthrough supercharged engine features a forged-steel crankshaft with induction-hardened bearing surfaces. The result is a crank so well-engineered it can withstand firing pressures of 110 bar (1,595 psi) — the equivalent of five family sedans standing on each piston, every two revolutions. And its unique, specially tuned crank damper has been tested to 13,000 rpm.
 
High-strength, forged-alloy pistons — developed using advanced telemetry measurement — are coupled to powder-forged connecting rods with high-load-capacity bushings and diamond-like-carbon-coated piston pins.
 
The new supercharged HEMI has premium-grade, heat-treated aluminum-alloy cylinder heads that are optimized for superior thermal conductivity. And its die-cast aluminum rocker covers are HEMI Orange.
 
In addition to the supercharged HEMI V-8 in the Challenger SRT Hellcat, the new 2015 Dodge Challenger SRT model also gets a power boost with upgrades to the 392 HEMI V-8. Horsepower climbs to 485 from 470, while peak torque jumps to 475 lb.-ft. from 470 lb.-ft.
 
The 392 also can be mated with a new TorqueFlite eight-speed automatic or the proven six-speed manual transmission.