> 
Hennessey

Hennessey

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.

Had it not been for some silly rules, like needing 30 production cars to qualify and needing two back-to-back runs, the Hennessey Venom GT would have taken home the title as the "World’s Fastest Production Car" after its 270.49-mph run at Kennedy Space Center. But those rules are in place, and Hennessey couldn’t care less, as it is rolling out a special World’s Fastest Edition Venom GTs in very limited quantities.

There is very limited information on the World’s Fastest Edition, but we do know that it features a red, white and blue livery to match the American flag. We also learned that the model will come in at a price tag of $1.25 million.

According to what I can gather, the Venom GT WFE will carry the same 7.0-liter, twin-turbo V-8 as the rest of the Venom GTs. This means that it pumps out 1,244 horsepower, and shoots the hypercar to 60 mph in 2.7 seconds and 186 mph in just 13.63 ticks. While the Venom GT only hit 270.49 mph at Kennedy Space Center, Hennessey claims it can hit about 278 mph.

I’m sure that Hennessey will announce more details on the WFE Venom GT, if there is more to talk about, so stay tuned to TopSpeed.com for more details.

Click past the jump to read more about the standard Hennessey Venom GT.

We all know that the Bugatti Veyron is the current record holder as the world’s fastest production car, and that just didn’t sit right with John Hennessey and his team. So, they set out to destroy the record, bringing the title back to the good ol’ U.S. of A. After negotiating with NASA to use its landing strip at the Kennedy Space Center, the record was prime for the taking.

Well, as expected, the Venom GT was the car for the job, and it completed its end of the task by hitting a Vbox-verified 270.49 mph — the Veyron Super Sport topped out at 267.81 mph. Unfortunately, Guinness Book of World Records again catered to Bugatti, as it will not recognize the record because NASA only allowed one run, and the record book requires two runs — down and back — to confirm the average top speed.

So, why didn’t Hennessey negotiate for one more pass down the landing strip? That’s because it would have been pointless, as Guinness defines a "production car" as one with at least 30 examples built and Hennessey only has 29 slotted for production this year.

Well, I say screw Guinness and their Bugatti -loving tactics has confirmed that it can smoke the Veyron, plus it is better looking and cheaper — a win-win-win!

Source: TopGear
Posted on by Simona  

Shortly after Chevrolet launched the SS sports sedan onto the market Hennessey Performance came up with a pretty amazing tuning kit that raised the standard output up to 600 horsepower — up from 415 horsepower.

A few weeks ago, we got a look at the Hennessey SS hitting a top speed of 163 mph on a Texas Toll Road, and today the tuner released a video of the sports sedan running the quarter mile in 11.84 seconds at 117 mph. To put that into perspective, a Ferrari 458 Italia runs the quarter in about 11.5 ticks at 125 mph — not too bad for a sedan.

The only update the model received besides that bad-ass HPE600 kit was a set of drag radials for extra grip.

As a reminder the HPE600 package includes a TVS2300 supercharger, HPE air induction system, fuel system upgrades and ECU modifications. A series of aesthetic updates were also made, including a carbon aero body kit and a carbon-fiber kit for the interior.

Posted on by Simona  

Hennessey Performance revealed one of the first tuning kits for the seventh-generation Chevrolet Corvette last July, and the best part is that the tuner offers four different power kits — HPE600, HPE700, HPE800 and HPE1000 — with the output level ranging from 600 to 1,000 horsepower.

The tuner took one of this kits — the HPE700 — and strapped it onto the dyno to see what the car is really capable of. The HPE700 includes a TVS2300 supercharger system and Hennessey’s in-house HPE Air Induction System, CNC ported heads for free-flowing air and exhaust, and a hot camshaft.

As a result of all of this hard work and engineering, the Stingray HPE700 delivers a total of 700 horsepower at 6,300 rpm — up from the standard 460 horsepower at 6,000 rpm and 465 pound-feet of torque at 4,600 rpm.

Check out the video to see how the Corvette HPE700 did on the dyno test!


1 2 3 4 5 next >
Back to top