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Jay Leno drives a 1970 Dodge Charger with 1,650 horsepower

When Jay Leno says a vehicle might have too much horsepower, he's got our attention piqued. That's exactly what he thinks about the 1970 Dodge Charger Tantrum from Wisconsin-based SpeedKore Performance. While it still looks like a classic muscle car, the front end now features a carbon fiber hood and fenders. Underneath the lightweight parts, there's a twin-turbo, 9.0-liter Mercury Marine offshore boat racing engine with an astonishing 1,650 horsepower, or an only slightly less asinine 1,350 hp on pump gas. Jay is very mechanically intrigued by the Charger at the beginning of this video, and puts it on the lift to take a look at the underside. The engine plumbing is a thing of beauty, and the mill packs a massive radiator and intercooler to keep things running cool. Leno's drive in the Tantrum is especially interesting. The beastly engine is difficult to control, and anything above half throttle in most gears can spin the rear tires. The significant turbo lag also makes the power unpredictable. When Jay finally finds a straight piece of road, he puts the hammer down and rockets into the distance. And, of course, you know Jay's not going to end the video without some suitably smoking tires. Related Video:

Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

Dodge Durango Shaker concept: A 392 V8 in front of six Viper seats

When done right, a parts-bin special can be a beautiful thing. This Dodge Durango Shaker concept for the 2016 SEMA show is one such vehicle, and it's easily our favorite Mopar debuting in Vegas. The key, of course, is pulling from the right bins. Take a tour and you'll see Charger, Challenger, and Viper pieces grafted onto this slick crossover. The featured special part is the big, 6.4-liter 392 Hemi V8 that's been dropped under the hood; it's sourced from the SRT Challenger and Charger where it makes 485 horsepower and 475 pound-feet of torque. With that in place, the fabricators cut a big hole in that hood for the Challenger's awesome optional shaker scoop. It wasn't an easy installation; it required a custom spacer for the intake to make sure everything lined up with the hole properly. View 17 Photos Apparently there were some Viper seats lying around, so six of them were stuck into this Durango. Makes sense. It does lose a bit of people-carrying capability as a result, since only two seats fit in each row, and the seats don't fold for extra cargo room. A Dodge spokesperson attested to the fact that all three rows are usable, if not totally comfortable. But then stock third-row seats aren't always that comfortable anyway. Seriously, though, Viper seats. We don't care how comfortable or usable the result is. Although you might not give it a second thought, even the fuel filler needed some special attention. This piece was also lifted from a Dodge Challenger, and it was taken along with the surrounding sheet metal. Because of the different orientation of the filler cover on the Challenger, the builders decided the easiest way to get it to fit was to chop the fuel filler section out and weld it onto the Durango. The designers also put a little blue Stig on the cover. And those are just the cool parts that were hard to install. This Durango features plenty of other slick details, like the custom bumpers, fender flares, and side skirts. Everything is painted B5 Blue with matte black and carbon accents all around. Up front, the bumper hides a pair of fog lights stolen from a Challenger Hellcat – and yes, they're the ones with intakes in the middle. The grille is also a custom piece, losing the standard crosshair design for better airflow. The fender flares cover up some seriously wide, 305-section tires at all four corners, which are hauled down by Hellcat brakes. The rear bumper bumper contains a stylish center-exit exhaust with dual tips.