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Dodge Demon's A/C helps its supercharged Hemi make more power

Staying cool is one important key to performance. Simply, more air means more power, and cool, dense air is better than hot air. While forced induction might help make copious amounts of horsepower, turbos and superchargers produce heat. Intercoolers help, but the new Dodge Demon and its supercharged Hemi need a bit of an extra boost. In Drag Mode, the Demon's engine commandeers the car's air conditioning system to help chill things out. The Demon will have the first production application of a liquid-to-air charge air cooler chiller system. Literally, the car's air conditioning system is used to cool the air going into the engine, dropping temps by up to 45 degrees Fahrenheit. Dodge claims the system helps achieve "temperatures previously unattainable by pressure-charged street-legal production vehicles." As cool as this may sound, the technology isn't new. Ford had a prototype system in the early 2000s called SuperCooler, though that system never made it to production. While the Demon's system doesn't have a super cool name like the one from Ford, the pair essentially work in the same way. In theory, it should have the same effect as a bottle of nitrous. According to Autoweek, Ford's system bumped up the output of the F-150 Lightning by about 50 horsepower. Turns out that air conditioning isn't always a huge power suck. Related Video:

NHTSA is investigating FCA shifters for roll-away accidents again, this time the rotary units

It seems FCA's shifter troubles aren't over yet. Now, just a few months after issuing a recall to resolve user-related issues with its monostable shifters, the company is again under investigation by NHTSA. The issue is related to the potential for cars to roll away when the rotary-style shifter is not properly placed in park. Two FCA models are the subject of this investigation: the 2013–2016 Ram 1500 and the 2014–2016 Dodge Durango. NHTSA estimates about 1,000,000 vehicles would be affected if a recall is issued. The investigation was started following 43 complaints of vehicles rolling away while supposedly being in "park." Among the complaints were reports of 25 crashes and 9 injuries. NHTSA does point out that in every incident, the parking brake was not engaged. A representative from FCA also gave us an official statement regarding the investigation: "FCA US is cooperating fully with NHTSA's investigation, the scope of which is limited. Other vehicles equipped with rotary shifters are not included. In accordance with prudent practice, the Company joins NHTSA in urging all drivers to use their vehicles' parking brakes." View 35 Photos As mentioned above, other Chrysler products with rotary shifters, such as the Pacifica minivan and 200 sedan, are not involved in this investigation. One of the key differences, as the representative told us, is that these vehicles have electronic parking brakes that automatically engage if the driver does not select park and then opens the door with the seatbelt unbuckled. The Ram 1500 and Durango feature mechanical, manually operated parking brakes and therefore cannot activate the brake automatically. Because this is currently an investigation, an exact cause for the incidents has yet to be determined, and none of the vehicles have been recalled. It's possible there could be a mechanical defect. However, the issue could be a confusing interface causing user error, as was the case with FCA's monostable shifters, where drivers think they've put the car in park but actually haven't. Something that indicates it could be a case of confused users is that NHTSA also opened an investigation into 2012–2014 Jaguar XF and Land Rover Range Rover Evoques for similar issues. Both vehicles use a rotary shifter and have had roll-away complaints levied as well. Even if it is a case of user error, FCA and Jaguar Land Rover may still have to recall their vehicles.

All hail the Hellephant, Mopar's 1,000-horsepower crate engine

It's shocking to say this, but the all-powerful Dodge Demon looks weak now that Mopar has unleashed the Hellephant. This crate motor makes 1,000 horsepower and 950 pound-feet of torque, and its name is a combination of the nickname for the old 426-cubic-inch Hemi V8 and, obviously, the Hellcat. This monster is a 426-cubic-inch version of the current third-generation Hemi V8 topped by a supercharger similar to what the Hellcat line packs. Everything is cranked up to — or perhaps, past — 11. The engine block is made of aluminum and weighs 100 pounds less than the equivalent iron block. All of the internals are forged. The stroke and bore have been increased. The supercharger produces 15 pounds of boost and displaces 3 liters; more than the 2.7-liter blower on the Demon and the 2.4-liter blower on the Hellcat. And as big and powerful as it is, it will still rev to 7,000 rpm. It's a thoroughly monstrous motor, but shockingly, it won't be that difficult to live with. For one thing, Mopar will offer a complete kit to get the engine up and running, including an engine computer, wiring harness and drive-by-wire throttle. It also runs on 93-octane pump gas. That's especially amazing considering the Demon engine "only" makes 840 horsepower, and that's on race gas with 100+ octane fuel. It also has us wondering what the Hellephant could make on racing fuel. The Mopar folks did say that there's room to add more power. Pricing wasn't announced for the Hellephant engine. The Hellcat crate engine retails at $19,350 directly from Mopar, so it's safe to assume that the Hellephant will go for more. The installation kit with the computer and harness will be an extra charge of likely over $2,000, based on the Hellcat kit. The engine and the kit will be available in the first quarter of 2019. Related Video: Featured Gallery Hellephant Crate Engine SEMA Show Chrysler Dodge Jeep RAM Performance dodge demon hellephant