1952 Dodge Coronet Sierra Wagon on 2040-cars

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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:

Dodge Challenger Scat Pack adds power and noise, with a warranty

If you want to go fast, there's certainly nothing wrong with the Dodge Challenger SRT8. With 470 horsepower and 470 pound-feet of torque for 2014, there's certainly not much to complain about. But what if you want something more aftermarket in flavor? There's no shortage of options, but while turning to the tuner world will make your car plenty fast, that extra power won't just shred rear tires, it'll torch your warranty, as well. That's where Dodge's Scat Pack comes in.
With three stages of mods for both the 5.7 and 6.4-liter Hemi V8s Challenger (as well as the 5.7-liter Charger and, soon, the four-pot Dart), the Scat Pack cars give drivers all the power, aggression and noise of a heavily modded aftermarket car while maintaining the piece of mind provided by the Dodge warranty.
Power gets bumped up to 485 horsepower and 475 pound-feet of torque with the 6.4-liter Scat Pack, while the 5.7-liter can provide up to 58 hp and 47 lb-ft of torque to add to the stock engine's 375 horsepower and 410 pound-feet. It's the latter engine that can really get some work done, with upgrades ranging from the mundane - intake and exhaust - to the racy, like the ported heads and high-flow headers.

40+ cars that barely avoid the gas guzzler tax

The Gas Guzzler schedule, with mpg ratings and charges that haven't changed since 1991, lays out which fuel-swillers owe what to Uncle Sam.
I started thinking about the "Gas Guzzler Tax" - considerably less well known as The Energy Tax Act of 1978 - when I was driving Dodge's new Challenger SRT Hellcat last week. Unsurprisingly for a car that can burn 1.5 gallons of gas per minute at max tilt, theoretically able to empty a full tank of premium in about 13 minutes, the Hellcat will be subject to the Gas Guzzler Tax schedule when it goes on sale.