The Dodge Challenger SRT Hellcat has a ground-shaking 707 horsepower, making it the most powerful muscle car in history. The supercharged 6.2-liter HEMI engine matches the 707 horsepower with 650 lb.-ft. of torque.
The Dodge Challenger SRT Hellcat was announced back in May, but Dodge didn’t bother announcing how much power its engine could produce. This reveal comes almost two months after the rest of the Dodge Challenger series horsepower ratings were announced.
The base 2015 Challenger’s V6 puts out 300 horsepower. Stepping up to the optional V8s, the 5.7 HEMI delivers 375 horsepower while the 6.4 liter HEMI produces 485 horsepower. That means the SRT Hellcat’s 707 horsepower 6.2 liter HEMI can crank out over 45% more horsepower than its most powerful sibling.
In a video simply called SRT Hellcat Performance, Dodge shows off the car’s aggressive styling and splashes some text on the video that reads “The Numbers Are To Be Feared.” The video goes on to show the SRT Hellcat ripping around a desert road and a track. In a big reveal, Dodge brags “This is 707 Horsepower” in big block letters.
One thing that bothers us about the SRT Hellcat Performance video is that you can’t actually hear what 707 horsepower sounds like. Fortunately, we have a video of a revving Challenger SRT Hellcat on our YouTube channel that can give you an idea. Just crank up your speakers for full effect.
By comparison, the 2014 Corvette Z06 LT4 supercharged 6.2 liter V8 maxes out at 650 horsepower. Of course the Corvette is much lighter and lighter than the Hellcat so Dodge fans shouldn’t get too excited about this comparison.
Here is a nice overview of the Dodge Challenger SRT Hellcat. The Hellcat upgrade is much more than just dropping a more powerful engine into the Dodge Challenger’s engine bay. Started with a 392ci engine and changed more than 90% of the engine parts to deliver the 707 horsepower. The Challenger engineers devised two transmissions to handle all of the torque. The TorqueFlite eight-speed automatic transmission has wider gears and beefier clutches. The six-speed manual gearbox feature is based on the Dodge Viper’s and has an upgraded clutch and external cooling for increased durability. The exhaust system is tuned to reduce back pressure and sound aggressive. There’s also a new limited slip differential that helps deliver the power to the track efficiently.
Of course there’s a lot more to the Challenger SRT Hellcat. The interior has classic muscle car since its designers borrowed inspiration from the 1971 Challenger. There are two keys for the Hellcat including a black key for daily driving and a red key that puts the car into performance mode.
While the Dodge Challenger SRT Hellcat’s horsepower rating sure sounds like American muscle, one thing thing that may irk traditionalists is that the 2015 Dodge Challenger and Challenger SRTs are built in Ontario.
Dodge hasn’t announced pricing for the Dodge Challenger SRT Hellcat, but it will be at a steep premium that may push some buyers to eye cars with higher base prices. After all, the Dodge Challenger SRT Hellcat shares most of its parts with the $26,000 base model.