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Ringbrothers drops more hints about its wild SEMA creations

Ringbrothers isn't finished teasing its SEMA creations. First we got a sliver of rear quarter on a 1969 Chevrolet Camaro that revealed a bundle of carbon fiber and SEMA-obligatory deep-dish wheels. The Wisconsin tuner's now announced its litter of cars headed to the show and a few specs, along with two shadowy drawings. The Camaro, christened with the name Valkyrja and a two-tone paint job, gets stretched in two directions with severe fender flares to widen the body and an extended wheelbase. We're not sure what's happening with the Camaro's snout in the drawing, but under that bulging hood we'll find a 416-cubic-inch LS V8 from Wegner Motorsports. Wegner built the 416-cu-in supercharged LS3 V8 that powered Ringbrothers' 1,000-hp G-Code Camaro in 2016.  The second member of the gang is a 1969 Ford Mustang Mach 1 dubbed Unkl. The exterior begs for attention with a deep blue sea paint job, deep front chin spoiler, bulging hood, yellow brake calipers, and what looks like a racing number inside a roundel on the doors. Unkl gets its motivation from a 520-cu-in Boss V8 built by Kaase Racing Engines, rumored to throw about 800 hp.    Finally, Ringbrothers is bringing its Cadillac Madam V for another Las Vegas go-round after giving the custom coupe some updates. The Madam V is a 1948 Cadillac Series 62 fastback coupe body placed atop an ATS-V chassis, first shown in 2016. The firm didn't elaborate on the changes, so all we can expect for now are the coupe's postwar good looks mixed with new-millennium engineering, and a 3.6-liter twin-turbo V6 with 464 hp under that exceptionally long hood.    For any in attendance at the show, the Valkyrja Camaro debuts at the BASF booth on Tuesday, Nov. 5, 2019 at 9:30 a.m., the Unkl Mustang gets revealed a couple hours later at the Flowmaster/Holley booth, and the Madam V Cadillac will be on display throughout the show at the Ringbrothers booth.

John Hennessey's personal 2015 HPE700 Supercharged Ford Mustang GT hits 195 mph

Dressed in a coat of menacing black paint, the 2015 Hennessey Performance HPE700 Supercharged Ford Mustang GT definitely looks like one mean muscle machine. The 717-horsepower 'Stang proved that it can back up that aggressive appearance recently when company founder John Hennessey took his personal example to see just how fast it would go. The result down the 1.1-mile straight at the Continental Tires Proving Grounds in Uvalde, Texas, was over 195 miles per hour. The Mustang is nothing but a black blur and wall of supercharger wail as it buzzes by the camera at top speed. Despite the strong result, Hennessey doesn't seem done with the 'Stang yet. The car still seems to be pulling when it hits the rev limiter, and there's some straight track left ahead. After getting out, John Hennessey immediately says he thinks 200 mph is possible. The heart of the HPE700 is a 2.9-liter Roots-Type supercharger running at 7.25 psi. That's a pretty massive blower, especially when considering the 2.4-liter unit on the Hellcat V8. The engine also gets upgrades like improved injectors, a new fuel pump, stainless steel exhaust and recalibrated management. The company claims the upgraded Mustang can hit 60 in around 3.6 seconds and do the quarter-mile in 11.2 seconds at 131 mph. Prices for the package start at $59,500, but this one would would ring up for $65,874. Hennessey Performance is limiting production to 500 of them for the 2015 model year. 2015 HPE700 Supercharged Mustang Rockets to 195.2 mph John Hennessey takes his personal Mustang GT on a Texas road trip Uvalde, Texas-Everything is bigger in Texas, especially when it comes to automotive performance. Texas also lays claim to the highest posted speed limit in America at 85 mph. Enter the team from Hennessey Performance Engineering (HPE) who are located just west of Houston. John Hennessey and his merry band of performance car builders like to go fast, so much so that they have their own 1/4 mile dragstrip next to their workshop. Recently, the Hennessey team wanted to test their 717 horsepower HPE700 Supercharged Mustang development car (John's personal car and occasional daily driver) beyond the 130+ mph speeds that they have seen on the dragstrip. "Thankfully, we had recently received an invitation from the guys at the Continental Tires proving grounds in Uvalde to come over and do some testing on their 8.0 mile high speed oval", said Hennessey.

Chevy says not to look at the 2019 Silverado's fuel economy rating

The 2019 Chevy Silverado is hitting dealerships soon, and one of the most notable changes for the new full-size pickup is the addition of a 2.7-liter turbocharged inline-four. The engine replaces the naturally-aspirated 4.3-liter V6 in volume consumer models like the Silverado LT and promises more power, less weight and — most importantly — better fuel economy. The thing is, the gains in efficiency haven't been as dramatic as some might have hoped, especially when stacked up against competitors from Ford and Ram. As Automotive News reports, GM's response is a little murky. First, let's talk numbers. We're pulling all figures from FuelEconomy.gov, the official U.S. government source for fuel ratings. Fuel economy numbers on trucks vary greatly based on a number of factors. Bed and cab configuration play a part, but so does a four-wheel-drive system. You also have to factor in tires, transmissions, rear-axle gearing, hybrid systems and cylinder deactivation. Things like that can make the difference between best- and worst-in-class. The EPA's website doesn't give enough information a lot of the time, so there's really no easy way to compare apples-to-apples. First, take a look at the ratings for the 2019 Silverado. A 2.7-liter model with two-wheel drive is rated 20 city, 23 highway and 21 combined. That's both better and worse than a two-wheel drive 2018 Silverado with the 4.3-liter V6 (18 city, 24 highway and 20 combined). The updated 2019 Silverado with a 4.3-liter V6 has yet to be rated. With less weight and a smaller engine, many hoped Chevy would make bigger gains. It's unusual to see any decrease in a fuel economy metric these days. GM says that it's not done tuning the new 2.7-liter engine, so fuel economy could theoretically increase. Expanding further, a V8-powered 2019 Silverado (17 city, 24 highway and 19 combined) actually gets better highway fuel economy than a turbocharged four-cylinder powered truck in certain configurations, even if the latter has a better overall average. But that's only with two-wheel drive, the 8-speed transmission and cylinder deactivation. A Silverado with the 5.3-liter V8 and a 6-speed automatic is rated at 15 city, 22 highway and 17 combined. The biggest issue with the Silverado 2.7-liter doesn't come from within GM itself but from Ford and Ram. GM cites the Ford F-150 with the 3.3-liter V6 and the Ram 1500 with the 3.6-liter V6 as the closest competitors to its new 2.7-liter inline-four.