First Dodge Challenger SRT Demon on the Dyno

Today we find out how much power the 2018 Dodge Challenger SRT Demon sends to the rear wheels with the pump-gas PCM.

We all know that the 2018 Dodge Challenger SRT Demon is rated at 808 horsepower and 717 lb-ft of torque at the crankshaft, but today, we get to see just how much power the newest Mopar monster muscle car sends to the rear wheels. This video, courtesy of the team at A2Speed, showcases a completely stock Demon making a run on the rollers – making this the first private dyno testing video we have seen.

Spoiler Alert – the results are pretty impressive.

Demon on the Dyno

Some of you might be looking at the power numbers above for the 2018 Demon and wondering why we are talking about 808 horsepower and 717 lb-ft of torque rather than 840 hp and 770 lb-ft of torque. The bigger numbers require the race-gas PCM that is included in the “Demon Crate”, and while the first Demons are being delivered to buyers around the United States, it seems that none of those buyers have received their crate of high performance goodies. Without the 100-octane-ready PCM in the crate, the new Demon is limited to “only” 808/717, but as we see in the video above, the newest supercharged Challenger makes good use of the available power.

The video begins with the 2018 Dodge Challenger SRT Demon cruising on the dyno. After a few seconds of low RPM, the driver hammers the throttle and the Demon’s blown Hemi comes to life. The supercharger whine and exhaust roar fill the shop as the front end looks like it is trying to lift on the dyno. The driver only stays into the throttle for a few seconds, but that is enough to send peak power to the rear wheels while also giving us a chance to hear the most powerful muscle car ever clear its throat.

The Results

As the brief dyno run ends, we get a look at the chart for the 2018 Dodge Demon, announcing 724 rear-wheel horsepower at 6,150 rpm and 681 lb-ft of rear-wheel torque at 4,350 rpm. Also, we can see that torque levels top the 600 lb-ft mark around 3,000 rpm and they hover in that area until nearly 6,000rpm.

When compared to the stock rated power figures of 808 horsepower and 717 lb-ft of torque, the Demon is only losing about 10 percent of its horsepower and 5 percent of its torque between the crankshaft and the wheels. Those drivetrain loss numbers might seem extremely low, but keep in mind that when the automaker achieves their stock figures under SAE requirements, the engine is run hard for more than seven minutes, so the automaker numbers will always be far more conservative than shop numbers with a “quick spike” test like this one.

We cannot wait to see what this Demon lays down once the shop gets ahold of the Demon Crate with the race gas PCM. With 840 hp and 770 lb-ft of torque at the crankshaft, we could see wheel numbers in the area of 750-760 hp and more than 700 lb-ft of torque.

In the meantime, crank up your speakers and enjoy the sweet sound of the first 2018 Dodge Demon in action on the dyno.

Patrick Rall

"Before I was old enough to walk, my dad was taking me to various types of racing events, from local drag racing to the Daytona 500," says Patrick Rall, a lifetime automotive expert, diehard Dodge fan, and respected auto journalist for over 10 years. "He owned a repair shop and had a variety of performance cars when I was young, but by the time I was 16, he was ready to build me my first drag car – a 1983 Dodge Mirada that ran low 12s. I spent 10 years traveling around the country, racing with my dad by my side. While we live in different areas of the country, my dad still drag races at 80 years old in the car that he built when I was 16 while I race other vehicles, including my 2017 Dodge Challenger SRT Hellcat and my 1972 Dodge Demon 340.

"Although I went to college for accounting, my time in my dad’s shop growing up allowed me the knowledge to spend time working as a mechanic before getting my accounting degree, at which point I worked in the office of a dealership group. While I was working in the accounting world, I continued racing and taking pictures of cars at the track. Over time, I began showing off those pictures online and that led to my writing.

"Ten years ago, I left the accounting world to become a full-time automotive writer and I am living proof that if you love what you do, you will never “work” a day in your life," adds Rall, who has clocked in time as an auto mechanic, longtime drag racer and now automotive journalist who contributes to nearly a dozen popular auto websites dedicated to fellow enthusiasts.

"I love covering the automotive industry and everything involved with the job. I was fortunate to turn my love of the automotive world into a hobby that led to an exciting career, with my past of working as a mechanic and as an accountant in the automotive world provides me with a unique perspective of the industry.

"My experience drag racing for more than 20 years coupled with a newfound interest in road racing over the past decade allows me to push performance cars to their limit, while my role as a horse stable manager gives me vast experience towing and hauling with all of the newest trucks on the market today.

"Being based on Detroit," says Rall, "I never miss the North American International Auto Show, the Woodward Dream Cruise and Roadkill Nights, along with spending plenty of time raising hell on Detroit's Woodward Avenue with the best muscle car crowd in the world.

Rall can be contacted at QuickMirada@Yahoo.com

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