Hennessey

Hennessey

The 2015 Cadillac Escalade is one of largest and boxiest full-size SUVs nowadays. I’m not saying it is not stylish, but that thing is huge, heavy and seemingly slow, but once its 420-horsepower V-8 comes to life, the Escalade is anything but slow. In fact, it takes only 6.4 seconds to charge from naught to 60 mph, which is faster than a Subaru BRZ or Scion FR-S , and it reaches the end of a quarter-mile strip in 14.8 seconds.

On the other hand, we know that some potential buyers would like the 2015 Escalade to be a tad quicker. This is where Hennessey Performance and its HPE550 package comes in. The upgrade places a supercharger atop the 6.2-liter V-8 and adds performance-enhancing parts, including a high-flow intercooling system. The result? Output goes up to a whopping 552 ponies and 565 pound-feet of torque, while it 0-to-60-mph drops to 4.9 seconds. Although the Texas-based company hasn’t released quarter-mile figures yet, it’s safe to assume the Escalade HPE550 is in the low 13-second range.

One thing’s for sure, the supercharged Escalade is definitely faster than a base model, and the video above proves just that. Hit the play button to find out why Hennessey charges a $15,950 premium to tweak the 2015 Escalade.

Hennessey Performance and the nation-wide automotive dealer AutoNation have recently announced their alliance in bringing Hennessey Hennessey Performance parts to the masses through AutoNation’s extensive dealer network. That means you can walk into your local AutoNation Chevrolet dealer and order a Hennessey upgrade to your vehicle, so long as Hennessey makes a kit for it.

Kicking off this new partnership, Hennessey outfitted a Chevy Silverado crew cab with its HPE550 Supercharger kit and hooked a flatbed trailer to its hitch. Riding along is a Corvette Stingray convertible with Hennessey’s HPE650 Supercharger . As the supercharger names suggest, the Silverado now makes 550 horsepower and the Vette puts out an impressive 650.

What we see in the video above is the pair getting their modifications in preparation for their nationwide tour. Yep, starting this month, Hennessey will be touring the country, going from one AutoNation dealer to the next, showcasing the performance advantages of its engine upgrades. Demonstration rides will be given and burnouts will likely happen.

Chevy buyers will be able to outfit not only the Corvette and Silverado with Hennessey’s wares, but also the SS , Camaro , Tahoe , and Suburban .

Once this Chevrolet tour is over in approximately 12 months, Hennessey will begin the same process with AutoNation Ford dealerships; showcasing Hennessey’s soon-to-be finished upgrades for the new 2015 Ford lineup. That includes the new Mustang and F-150 .

Two simple facts: Hennessey is known for making crazy horsepower numbers by tuning already-powerful cars and many enthusiasts complain the new Chevrolet Camaro Z/28 is underpowered. The solution: let Hennessey tune your 505-horsepower Camaro with some go-fast goodies to get an amazing 636 horsepower from the its 7.0-liter V-8.

This particular kit is called the Hennessey HPE600 and includes porting the heads, swapping in a more aggressive camshaft, upgrading the valvetrain components, bolting on stainless steel longtube headers, welding on high-flow catalytic converters, and flashing the Z/28’s computer for some extra power.

The result is an extra 131 horsepower, making the total count 636 horses at the crankshaft. The new parts help the naturally aspirated, 7.0-liter V-8 make 553 horsepower at the massive 305-series rear tires.

Hennessey explains the process wasn’t as simple as using the previous HPE600 kit from the old Corvette C6 Z06 toolbox. General Motors changed the LS7’s cylinder heads extensively between the two cars, so the Hennessey team had to reconfigure its porting process. On the flip-side, GM’s stock cold-air intake box on the Z/28 works well enough to be left alone.

As with every car Hennessey builds, a shakedown run is needed to ensure everything is ‘tight and right.’ In the video John Hennessey himself takes the Z/28 through its paces to see what the added power does. The Camaro’s super sticky Pirelli tires, performance suspension, and carbon-ceramic brakes all combine to make the it one of Chevy’s best-handling cars, but the added power allows the GM’s new track toy to keep up with the Camaro ZL1 and perhaps even nip the heels of Dodge’s new Challenger Hellcat .

You know that saying "when you’re at the top, there’s no other place to go but down?" Yeah, try telling that to Hennessey . The company that already has the fastest production car in the world (Guinness fails to certify it due to its crafty rules) in its stable is shooting for the stars with plans to develop evil in a vehicular form. The Texas-based company calls this evil on wheels the Venom F5.

Hennessey boss John Hennessey broke the news to Top Gear, gushing about the possibility of the Venom F5 hitting a top speed no other production car in the world has been able to attain. "I think something in the 290-mph range will be possible," Hennessey said.

The man apparently didn’t misspeak when he said "290 mph," which is all the indication you need to know that Mr. Hennessey Hennessey has either lost his mind or he is determined to drive Bugatti insane with constant pressure from Texas. The Venom F5 name pretty much says it all. That "F5" nomenclature is a reference to the most powerful classification given to tornadoes, or in the case of the Venom, a destructive output of around 1,400 horsepower.

All these horses are reigned in by a single-clutch, paddle-shift transmission, not the Ricardo, six-speed manual found in the Venom GT. You can, however, opt for the manual, if you like.

Start quivering in your boots, Bugatti . It’s better to embrace the inevitable than continue fighting for your cause.

Updated 08/05/2014: Hennessey unveiled a handful of official details on the Venom F5. Check them out after the jump.

Click past the jump to read more about the 2015 Hennessey Venom F5.

Technically, the Bugatti Veyron Super Sport is still the world’s fastest supercar . But if you really ask people in the industry what the real fastest car is, the answer will be the Hennessey Venom GT . Forget about those silly rules and technicalities that prohibit the Venom GT from being recognized for what it really is. This 1,244-horsepower demon is truly on a class of its own. But if you’re giving love to this hypercar, you need to give as much or more to the man behind the madness: John Hennessey.

After/Drive host Mike Spinelli spent some time with Hennessey to talk shop about a whole range of topics. As you can expect, the conversation eventually led to the Venom GT, his 7.0-liter V-8, twin-turbocharged beast.

There are over 28 minutes of video time in this episode. That provides plenty of time to get to know the man who changed the way we look at supercars here in the U.S. But most importantly, we get to learn more about the things that put Hennessey in the position that he is in now.

As always, it’s a fascinating episode from the guys at After/Drive. Be sure to spend time watching it.

Hennessey Performance is widely known for adding crazy amounts of horsepower to factory fresh vehicles already laded with respectable amounts of horsepower. This Corvette Stingray Z51 is no exception. Coming from Bowling Green with 460 horses and 465 pound feet of torque under the hood, this C7 gets a generous power increase thanks to Hennessey’s HPE650 Supercharger upgrade.

The specialized kit includes a high-flow supercharger with Hennessey’s HPE air induction system, a custom pulley for the blower, an upgraded 160-degree thermostat, and specific recalibration of the car’s engine management system. The extra air forced down the 6.2-liter V-8’s throat helps produce 650 horsepower at 6,300 rpm at the flywheel.

On the dyno, the car turns in 532 horsepower and 539 pound-feet of torque at the rear wheels. That’s an increase of 72 horses and 74 pound-feet compared to Chevrolet’s performance output numbers. Compare them to Hennessey’s baseline dyno results of the stock C7, and the difference is even greater. The stock car only put down 399 horses and 400 pound-feet to the rear wheels — though with its dealer license tag still tapped on, it’s possible the car wasn’t broken in.

Compare Hennessey’s before and after numbers, and the Vette gains an extra 133 horsepower and 139 pound-feet of torque at the rear wheels. Impressive stuff.

Also added to the car are several Hennessey badges, premium floormats, carbon fiber doorsills, and Hennessey’s 3-year, 36,000-mile limited warranty. The Texas-based company also offers plenty of other interior and exterior accessories with the package, at a slight extra cost.

If you find yourself wanting a Corvette Stingray HPE650, you’d better act fast. The company is only building 100 examples for the 2014 model year, though more will likely be available for 2015 and beyond.

With 415 horsepower and 415 pound-feet of torque at its disposal, the Chevrolet SS is one of the most attractive rear-wheel-drive sedans you can buy nowadays. But if those figures aren’t enough to satisfy your thirst for power, the SS can be upgraded with help from tuning specialists such as Callaway] or Hennessey].

An update from the former will enable the SS to deliver 570 horsepower via an Eaton TVS supercharger and other enhancements. This is a huge improvements over the standard model, but don’t think the SS can’t handle more oomph. Because it can, and Hennessey’s new upgrade is out to prove just that.

Just like it did with the Camaro ZL1 , the Texas-based company took things up a notch and replaced the 6.2-liter V-8 with a larger, 7.0-liter unit and a couple of ball-bearing turbochargers. Yes, we’re talking about the famous HPE1000 package that also comes with forged, low-compression pistons and connecting rods, a custom camshaft and stainless-steel piping and exhaust, just to name a few vital components.

The bundle enables the SS to deliver no less than 1,000 horsepower at 6,300 rpm and benefits from a professional installation, dyno tuning, extensive road testing and a one year or 12,000-mile warranty.

Click past the jump to read more about the Chevrolet SS HPE1000 By Hennessey.

Turbocharging a 2014 Chevrolet Camaro ZL1 might sound like an insane thing to do — some would call it blasphemous — but the folks over at Hennessey have no issues in replacing the muscle car ’s supercharged V-8 with a larger-displacement eight-pot and a pair of turbos.

The swap comes by way of the tuner’s HPE1000 package, which can also be fitted to the 2014 Corvette Stingray or the SRT Viper . As the name suggests, the upgrade plants no less than 1,000 horsepower under the hood, with all of them fully unleashed at 6,400 rpm.

For that spectacular oomph to become available, Hennessey ditches the ZL1’s supercharged 6.2-liter V-8 in favor of a 7.0-liter LS V-8 and a pair of ball-bearing turbochargers and other key updates that include forged-aluminum pistons, a custom camshaft, high-flow cylinder heads and an upgraded fuel system.

Naturally, the vehicle benefits from the company’s engine management calibration, and goes through a series of dyno and road tests before being delivered to its lucky owner. As seen in the video above, trials also include a few quarter-mile passes, obviously conducted for Hennessey to ensure the ZL1 reaches the parameters the HPE1000 package claims to offer.

We’re not going to spoil the result, but this twin-turbo Camaro ZL1 returned some spectacular figures. Needless to say, Hennessey is about to make yet another customer happy.

With 420 horsepower and 460 pound-feet of torque at its disposal, the brand-new 2015 Cadillac Escalade leads the full-size luxury SUV segment in terms of power. But if that’s not enough for you, then you’ll be happy to learn that the folks over at Hennessey Performance have taken the V-8’s output even further.

Using its new HPE550 package, the Texas-based specialist upgraded the 6.2-liter mill to deliver 557 horsepower and 542 pound-feet of torque, which translates into 32 percent and 18 percent increases respectively. As with most Hennessey tweaks, the package also includes an air-to-water intercooler system and engine management recalibration.

In a conversation with John Hennessey, the company expects one-second faster 0-to-60 and quarter-mile times, but they won’t have the official numbers until testing is completed in late-May 2014. By our estimates, this would put it at around five seconds flat. We will bring you the official numbers as soon as they become available. Top speed, however, will likely not be affected by the HPE550 kit, due to the electronic limiter on the Escalade.

The SUV’s exterior, however, remains unchanged, save for a set of lightweight Hennessey H10 forged, monoblock wheels that can be ordered separately for a hefty $6,950. The 20-inch rollers are supposed to allow more power to reach the pavement, thanks to their reduced rotating mass, which could mean a slight acceleration improvement.

Click past the jump to read more about the 2015 Cadillac Escalade HPE550.

Hennessey Perfromance ’s most recent projects included power updates for the 2014 Corvette Stingray and 2014 Chevrolet SS . If you’ve been with us the past couple of months, you may also know that its Lotus Exige -based Venom GT is the world’s fastest production car, albeit an unofficial record, at 270.49 miles per hour.

But these aren’t the only vehicle Hennessey has meddled with in its Texas workshop lately. The company has added its familiar HPE700 package to a couple of European sports cars , such as the recently-discontinued McLaren MP4-12C and the Ferrari 458 Spider, as well.

Tuning an already fast Ferrari 458 might sound insane to some, but nothing’s too extreme for the folks over at Hennessey, who have added a pair of ball bearing turbochargers in order to increase output up to a neck-breaking 738 horses and 532 pound-feet of torque.

The twin-turbo Ferrari was also enhanced with a new fuel system, a stainless steel exhaust system, among other goodies, while being fitted with the HPE Engine Management Calibration for optimized performance.

These updates enables the Texas-tweaked 458 Spider to launch from 0 to 60 mph in only 2.8 seconds and complete the quarter mile in 10.5 seconds at 137 miles per hour.


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