2011 Hennessey HPE700 LS9 based on Chevrolet Camaro Convertible

Article by Christian Andrei, on October 6, 2010

As you may know already, yesterday we showed you a limited edition of the Neiman Marcus 2011 Chevrolet Camaro SS Convertible. Today, another limited edition of the Camaro Convertible, this time from Hennessey was unveiled. Dubbed 2011 HPE700 Camaro, this edition will be built in a very limited edition of just 24 units.

What is more interesting is that under the hood we will find an impressive 6.2-liter LS9 V8 engine (same found on the Corvette ZR1) and capable to deliver 755 bhp and 763 lb-ft of torque. The car comes with a 30 hp increase over the 2010 coupe model, but also with larger 15 inch brakes with 6-piston front calipers.

Regarding its performances, the car can hit 60 mph in just 3.3 seconds and it runs the quarter mile in 10.9 seconds at 130 mph.Furthermore, the HPE700 also includes an adjustable coilover suspension, larger sway bars, HPE lightweight wheels, stainless steel long tube headers, painted hockey stripe, Alcantara-wrapped steering wheel, CarbonAero carbon fiber body kit and more. 

The 2011 HPE700 LS9 Camaro comes with a price tag of $132,500 and can be ordered directly through HPE or one of Hennessey's authorized Chevrolet dealers.

Designing a convertible may come with sacrifices especially to the stability and handling of the car. For instance, cowl and steering wheel shake have become synonymous to convertible cars of whatever model.

However, the design team for the 2011 Camaro convertible has amazingly overcome that structural “curse” that plagued all designers when it comes to convertibles. What they did, the engineer who led the design explained, was to reinforce the suspension of the Camaro convertible so that it retains the cruising capabilities and stability of the Camaro coupe.

This runs contrary to the common engineering practice of softening the suspension up when designing open cars. In other words, Al Oppenheiser said, the team has tweaked the suspension of the convertible model to closely mirror the suspension elements in the coupe version.

This resulted to similarities in the handling and performance of the coupe version of the 2011 Camaro, a goal that Oppenheiser said dominated the development team’s effort from the onset. The result is a convertible that preserves nearly all the acceleration, road-holding and performance capabilities of the Camaro coupe.

Aside from preserving the suspension of the coupe version, the development team also added in structural tweaks that prevent cowl and steering wheel shake. This is achieved by adding a hydrofromed tube in the A-pillars, as well as reinforcing the windshield header bracket, the front hinge pillar and the rockers.

The structural changes to the Chevrolet Camaro convertible body give it superior bending and torsional stiffness compared to its closest competitor. It also offers better torsional stiffness than the BMW 3-Series convertible.

Chevrolet Camaro can hold its own against its competitors when it comes to bending torsional stiffness, thanks to the structural improvements introduced in the convertible model. It also beats the BMW 3-Series convertible in terms of torsional stiffness.

Press Release

New 2011 Hennessey HPE700 Camaro Gets Convertible Option and 755 Horsepower

With the limited production run of Hennessey's 2010 HPE700 Camaro long since sold-out, the company has announced they will build another 24 units for the 2011 model year. This latest run of HPE700's will include the addition of the new convertible model (from Chevrolet) and an increase in power from its supercharged 6.2L LS9 V8 – the same engine found in the Corvette ZR1.

The 2011 HPE700 gets its additional power from revised boost levels and a more robust fuel system, delivering 755 bhp and 763 lb-ft of torque. This 30 horsepower increase over 2010 will also help move the convertible's extra weight, while the large 15 inch brakes from last year remain to bring it back to a stop quickly.

As the Camaro convertible arrives in showrooms in the spring of 2011, the 6-speed manual SS model will become available alongside its hardtop brethren to become the basis for the HPE700 LS9 Camaro transformation.

HPE founder and president, John Hennessey said, "We have already sold a several of our 2011 HPE700's in hardtop form, increasing the potential for the convertible LS9 Camaro to become an even rarer option than before". "I expect that we will sell all 24 units just as we did in 2010. However this time we will probably sell-out even sooner as the convertible option will certainly be attractive – especially with 755 horsepower".

In addition to the upgraded LS9 engine, the HPE700 also includes an adjustable coilover suspension, larger sway bars, HPE lightweight wheels, larger 15-inch brakes with 6-piston front calipers, stainless steel long tube headers, painted hockey stripe, Alcantara-wrapped steering wheel, CarbonAero™ carbon fiber body kit and more to complete the car's distinct look and performance characteristics.

As with the 2010 model year, the 2011 HPE700 LS9 Camaro will be limited to just 24 units, with no set allocation between coupe and convertible. Pricing for the complete HPE700 upgrade, including the base vehicle, is $132,500 and can be ordered directly through HPE or one of Hennessey's authorized Chevrolet dealers.

2011 Hennessey HPE700 LS9 Camaro Specifications

• 755 bhp @ 6,400 rpm
• 763 lb-ft Torque @ 3,200 rpm

Performance (Hardtop):
• 0 - 60 mph: 3.3 sec. *
• 1/4 mile: 10.9 @ 130 mph *
• Skidpad: 1.01 g
• 60 - 0 mph braking: 104 ft.
Note: * with optional 305/35-20 Nitto Drag Radial Tires

2011 HPE700 Camaro Includes:
• Base 2011 Camaro SS with 6-speed Manual Transmission (convertible or hardtop)
• LS9 6.2 Liter Supercharged Engine with Intercooler
• HPE Cold Air Induction System
• Supercharger Pulley Upgrade
• High-Flow Fuel Injectors
• Fuel System Upgrade
• Intercooler System Upgrade
• CarbonAero ™ Bodywork: Front Spoiler, Rear Bumper Diffuser & Side Rocker Panels
• Long Tube Stainless Steel Headers
• HPE Extreme Duty Clutch & Flywheel Upgrade
• HPE Race Shift Knob and Shifter Upgrade
• HPE Light Weight Alloy Wheels
• 20 x 10.5 inch (rear); 20 x 9.5 inch (front)
• Pirelli P-Zero Tires, 275/35-YR20 (front); 305/35-YR20 (rear)
• Brembo Front Brake Upgrade: 6-Piston Calipers with Light Weight 15 inch Cross-Drilled Rotors
• Brembo Rear Brake Upgrade: 4-Piston Calipers with 14 inch Light Weight Rotors
• KW / HPE Variant 3 Adjustable Coil-Over Suspension Upgrade
• KW / HPE Front & Rear Sway Bar Upgrades
• Painted Hockey Stick Side Stripe with LS9 logo
• Hennessey Embroidered Head Rests & Floor Mats
• Limited Edition HPE700 Dash Plaque & Hood Plaque
• HPE700 & Hennessey Logos Painted on Rear Deck Lid
• Hennessey Letter of Authenticity
• HPE700 buyers will also receive a 1-day performance driving course at Lonestar Motorsports
Park – a 1/4 mile dragstrip facility located adjacent to Hennessey's 30,000 square foot production
facility and showroom.

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