Wait a second – Whipple? Isn’t that the grocer who was always telling us not to squeeze the Charmin? Yep, but it’s also the brand of supercharger that’s helping this radically modified Chevrolet Camaro ZL1 to manufacture thunderous amounts of horsepower and torque.

Right off the assembly line, the Camaro ZL1 is a force of nature. It has a 6.2-liter supercharged engine that churns out 650hp and 650 lb.-ft. of torque. Not too shabby.

Enter Jason Levia and Vengeance Racing (Cumming, Georgia). When the factory get-up-and-go just made Jason want more; he handed the ZL1 over to Vengeance Racing for the professional treatment.

Initially, Vengeance went with a cylinder head and camshaft upgrade, Kooks long-tube exhaust headers and exhaust system, a cold air intake, a methanol injection system, upper and lower pulley upgrades, and an E85 sensor. Output jumped from 650hp to 770whp and that was great, for a while.

When Jason got an itch for more ponies, back to Vengeance he went. This time the Camaro got a Whipple 2.9-liter supercharger and a Nick Williams Gen V 103-millimeter throttle body (along with the other speed goodies). A vented catch can and a set of Vengeance Racing valve covers (with coil relocation kit) round out the underhood area.

Check out the dyno sheet for the details. He makes 929whp look easy.

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