Callaway Corvette SC627 Hits 627 Horsepower1
With a new patent-pending supercharger, intercooler (with three liquid-to-air cooling elements), and intake, Callaway’s Corvette SC627 is sure to make some C7 folks happy. For $22,995 on top of a base Corvette, you can add 167 horsepower and 145 lb-ft of torque (for 610 at the rear wheels) from the standard 6.2L Vette motor.
What’s cool about the SC627 is that max torque comes on at around 4,400 rpm – about the same moment as a stock Stingray.
According to Callaway:
The supercharger system includes Callaway’s new intake manifold design, its new intercooler design, and a 2300cc high helix angle, four-lobe rotor pack. Callaway developed the new long-runner manifold to increase mid-range torque, producing 57 lb-ft (SAE) more than last year’s Callaway Corvette. The engineers also devised a new intercooler system with three discrete liquid-to-air cooling elements, providing unequalled inlet air cooling efficiency. Plus, by extending the supercharger housing through the hood, convective heat transfer yields additional reduction of inlet air temperature. Reducing inlet air temperature provides more oxygen molecules for a given volume of air, increasing power while helping to prevent engine-damaging detonation. However, supercharging inherently increases air temperature as it increases air pressure. Unchecked, this can result in negating the supercharger’s positive effects. Callaway’s new intercooler configuration practically eliminates this temperature increase, as proven repeatedly during product development testing on the dyno and at the race track.
Horsepower is down slightly compared to the upcoming Z06 (23 horses and 40 lb-ft), but both cars serve different purposes: the Z06 is a track car for the street, while the SC627 just may be the ultimate modern all-around sports car. Would be great to see the two paired for a comparison in one of the buff books.
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GM 8-speed please! That is if Callaway want to whip other competitors.