The ZL1 is the hottest new Camaro on the block. Powered by an upgraded version of the supercharged LSA from the Cadillac CTS-V, the blown 6.2L thumps out 580 hp and 556 lb-ft of torque. That is some serious power for a production engine, and most owners are more than satisfied. There are, however, those who are not thinking about the powerful engine under their hood, but the 662hp one in the new Shelby GT500. Bottom line is in stock form, the Camaro will lose almost every time in a drag race to the lighter, more powerful Ford.
Compared to 662 hp, 580 starts to look subpar. But fear not, as Kenne Bell has the perfect cure for the ZL1 power blues. Its new blower upgrade for the LSA in the ZL1 not only increases the displacement of the stock Eaton roots blower from 1.9 liters to 2.8Ls, but also adds a healthy dose of efficiency thanks to the twin-screw design. The combination of increased displacement and efficiency allows the Kenne Bell upgrade to support over 1,000 hp, or more than enough to transform your ZL1 into a serpent slayer of the highest magnitude.
Kenne Bell has been offering supercharger kits for the popular performance applications for decades, as well as upgrades for factory forced induction applications. We followed along while Kenne Bell technicians performed an install of the new twin-screw upgrade kit on a '13 ZL1 equipped with an automatic transmission. Prior to the installation, the LSA was tested on a Dynojet in stock trim to establish a baseline. They then ran the Kenne Bell kit in street trim before cranking up the boost (how could we resist?) still using 91-octane pump gas.
While you can change pulleys on the stock blower, add a cold air kit and a tune, you'll probably end up at around 530 rwhp or so. That's a big improvement, but if you're a “go big or go home” kinda guy, the Kenne Bell is worth looking into.