Texas-based tuning company Hennessey Performance Engineering has released a video showing it performing a shakedown test on a customer’s C7 Corvette Grand Sport after installing its supercharged HPE750 package on it.
Hennessey will often take the customer along for the ride at its private proving grounds when they come to take delivery, but this customer’s wife also came out for the visit to the shop, so both of them got to ride in their newly upgraded Vette for this video. This couple are self-described “Corvette freaks,” so they were understandably excited to go on the track ride-along and compare the difference between a stock C7 Corvette Grand Sport and one equipped with Hennessey’s supercharged upgrade package.
Hennessey’s HPE750 upgrade package for the C7 Corvette Grand Sport includes a centrifugal supercharger, CNC ported cylinder heads, lightweight valves, heavy-duty valve springs, an HPE camshaft, upgraded pushrods and lifters, stainless steel long tube headers, high flow cats and HPE engine management calibration. With these upgrades, the 6.2L LT1 V8 engine will dole out 751 horsepower at 6,300 rpm and 734 pound-feet torque at 4,000 rpm, according to Hennessey. As a reminder, a stock LT1 V8 is rated at 455 horsepower and 460 pound-feet of torque.
With the right driver at the helm, a Grand Sport equipped with this package can accelerate from zero to 60 mph in about three seconds and will complete the quarter-mile in 10.7 seconds at 131 mph. A top speed of 202 mph makes an HPE750-equipped Vette faster than a stock C7 Corvette Z06, too. The tuning shop also includes Hennessey exterior and interior badging with this package, along with branded premium floor mats and a three-year/36,000-mile limited warranty (whichever comes first).
Check out the video embedded below to see and hear this supercharged C7 Corvette Grand Sport in action.