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2018 Dodge Demon comes with a factory tune for race gas

We knew the Dodge Demon was going to make a lot of power, but the ongoing question has been how much. We've seen estimates of between 757 and 1,121, but those have simply been guesses based on the numbers found in promo photos. However, if we had to put our bets on a horsepower rating, we'll probably go with the higher estimates because the Demon can run on race gas. Yes, the latest teaser for the Demon reveals that it will come with a factory tune optimized for race gas, which is rated at 100 octane or higher. Running such high octane, in combination with its heavy-duty intake cooling, means the Demon can handle absurd amounts of boost and advanced timing without running the risk of dangerous pre-ignition or detonation. Of course this also means the Demon should be capable of astonishing power with the high-octane calibration. The tune will be included in the Demon crate on a separate engine computer that the owner can swap out when he or she is ready to race. In addition to the computer, the center stack also has a button to activate the high-octane mode. A pair of fuel pumps and larger injectors also ensure the engine gets plenty of that sweet racing fuel. When not running the high-octane tune, the Demon runs on your average premium gasoline. Also, in case you accidentally run premium gas with the high-octane mode activated, the car will automatically switch to the default tune if engine knock is detected. You can get a peek at the system in the video above, and be on the lookout for a bonus video tomorrow. The full reveal will be next week on April 11 at the New York auto show. Related Video:

Dodge Viper might not live past 2017

The Dodge Viper might be running out of venom because the muscle-bound sports car could be on the road to being cancelled in just a few years. According to Allpar, the proposed deal between the United Auto Workers and FCA US would close the Connor Avenue Assembly plant, which produces the Viper, in 2017. The proposed union contract doesn't give a reason for closing the factory, but the decision is understandable if frustrating. The plant was idled twice last year to reduce production of the Viper to match flagging demand. A $15,000 price cut for the coupe eventually allowed for a sales surge, but that appetite hasn't continued in 2015. From January through September of this year, the company has only moved 503 of the sports cars, down eight percent. To further spur demand, Dodge has employed a few other tactics like the 1 of 1 program for buyers to personalize their Vipers, and the introduction of the brutally track-focused ACR. In a world where high-end sports cars are continuing to get friendlier for both their drivers and the environment, the Viper remains a holdout with a big, naturally aspirated V10. Even with the addition of some electronic aids on the latest Vipers, the snake still demands respect from those behind the wheel. Respect is fine, but sales are what matter to FCA – and the harsh reality is that a lack thereof might force the Viper into retirement, whether we like it or not.

Dodge Challenger spied exercising supercharged Hellcat Hemi V8

One of the prime complaints against the Dodge Challenger is that, even in SRT8 guise, its 470 horsepower is responsible for hauling over 4,200 pounds of vehicle. For comparison, the 420 hp in the Ford Mustang GT only has to deal with 3,618 lbs. Things only get worse from there, as the higher-performance variants of both the Mustang and the Chevrolet Camaro are far more powerful than an SRT8 without adding on much heft.
So what is Chrysler to do? The correct answer is add a whole lot more grunt to its hefty two-door and even the odds. That's where the all-new Hellcat engine comes into play. We reported on this engine in May, and suggested that the Hellcat, a supercharged powerplant based on a 6.4-liter V8, would easily generate 500 to 570 hp and could likely arrive boasting more than 600 ponies.
Chrysler's ace in its sleeve has now been spied testing, with a number of Hellcat-equipped Challengers running the potent new engine both in more urbanized areas and under the sun of Death Valley. The hoods on these testers have been raised to accommodate the engine, and that camouflage over the fascias of these prototypes is there to hide a larger air intake. We also note what appears to be a new split grille under wraps. As for power output, our spies are now suggesting a Viper-equalling 640 hp from the Hellcat-equipped cars.