638-hp not enough: Hennessey takes 2009 Corvette ZR1 up to 755-hp

January 29, 2009January 29, 2009 Omar Rana 2009 Chevrolet Corvette ZR1, Chevrolet Corvette ZR1, Corvette ZR1, Hennessey Motorsports, Supercars

As if the 638-hp 2009 Chevrolet Corvette ZR1 wasn’t powerful enough already, Hennessey Motorsports has decided to offer two performance package upgrades for the Chevy beast that takes it up to a total of 755-hp.

The first package, known as the ZR700, adds a supercharger pulley and blower snout upgrade, an intercooler system upgrade, a K&N air filter and a reprogrammed EMC (engine management computer). All that allows the 2009 ZR1 to produce 705-hp with a maximum torque of 717 lb-ft. 0 to 60 mph in just 3.1 seconds with a top speed of 212 mph.

The second package, known as the ZR750, adds everything from the ZR700 package and more for a total of 755-hp with a peak torque of 730 lb-ft. 0 to 60 is cut down to just 2.9 seconds with a top speed at a whopping 217 mph.

For pricing and other details call Hennessey Motorsports at 877.885.7077.

Follow the jump to see a video of the Hennessey ZR700 in action.

2009 Corvette ZR1 – Hennessey ZR700: 11.03 @ 136 mph:

ZR700 – 705 HP Engine Upgrade:

– Power: 705 HP @ 6,400 rpm
– 717 lb-ft Torque @ 3,800 rpm

Performance:
– 0-60 mph: 3.1 sec.
– 0-150 mph: 13.9 sec. (stock = 17.1 sec.)
– 1/4 mile: 11.0 @ 136 mph (tested on factory Michelin tires)
– Top Speed: 212 mph (estimated)

Inlcudes:
– Supercharger Pulley & Blower Snout Upgrade (increases boost from 11 to 14 psi)
– Intercooler System Upgrade
– K&N Air Filter
– Re-program Engine Management Computer
– Stainless Steel 1 7/8 inch Headers
– High Flow Catalytic Converters with Mid Pipes
– Hennessey & ZR700 Exterior Emblems (Optional)
– Hennessey ZR700 Premium Floor Mats
– Professional Installation at HPE
– Dyno Testing & Tuning

ZR750 – 755HP Engine Upgrade:

– Power: 755 HP @ 6,600 rpm
– 730 lb-ft Torque @ 4,000 rpm

Performance:
– 0-60 mph: 2.9 sec.
– 0-150 mph: 13.1 sec. (stock = 17.1 sec.)
– 1/4 mile: 10.7 @ 139 mph
– Top Speed: 217 mph (estimated)

Inlcudes:
– Supercharger Pulley (increases boost from 11 to 15 psi)
– Blower Gasket
– K&N Air Filter
– Re-program Engine Management Computer
– 6600 rpm Rev Limiter (200 rpm over stock)
– Stainless Steel Headers
– High Flow Catalytic Converters with Mid Pipes
– High Flow Cylinder Heads
– Camshaft Upgrade
– Intercooler System Upgrade
– Hennessey & ZR750 Exterior Emblems (Optional)
– Hennessey ZR750 Premium Floor Mats
– Available as a Mail Order Kit as well as Installed at HPE