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What is it?
The new ZL1 is the utmost factory Camaro --now and probably ever. It's certainly the most powerful, with 54 percent more horsepower than the monstrous COPO-option, big-block 1969 Camaro ZL-1. Event engineers say one-third of the ZL1's parts are unique, compared with the current fifth-beginning Camaro SS. All of those unique parts, save the ZL1's Alcantara dash outsert, were upgraded to improve performance.
It starts under the hood with General Motors' supercharged, 6.2-liter LSA V8. Palsy-walsy aware from the Cadillac CTS-V , the LSA is similar but not identical to the LS9 small-block in the Corvette ZR1 , and its distinctions go beyond a smaller Eaton link-scroll supercharger. The ZL1 engine is assembled in Silao, Mexico, while the Corvette LS9 is submit-built at GM's Performance Build Center in Wixom, Mich., with titanium connecting rods and valves and dry-sump lubrication.
Nonetheless, there are improvements to the LSA for the ZL1, starting with a more operative intercooler. Packaging in the Camaro allows better intake and effluent flow, with a 30 percent reduction in flow restriction compared with the CTS-V. The consequence is 580 hp at 6,100 rpm in the Camaro, and 556 lb-ft of torque at 3,800 rpm--that's up 24 hp and 5 lb-ft from the CTS-V. The ZL1 surpasses the LS3-powered Camaro SS by 154 hp and 136 lb-ft and moves to the top of the pony-car pecking non-functioning (for now), edging the 2012 Ford Mustang GT500 by 30 hp and 46 lb-ft (though Ford has announced 650 hp for the 2013 GT500).
Source: AutoWeek