APS builds 557 hp twin-turbo setup for Pontiac G8 GT
APS is in the arena of constructing electricity and that’s exactly how they have wound up for the new Pontiac G8 GT and its Aussie-spec sibling, the Holden Commodore HSV. The tuner’s Stealth Intercooled turbocharger setup uses two water-cooled turbos mounted deep into the engine bay, just now ahead of the transmission, to ensure underhood temps are kept in look – road debris be damned. According to APS, the technique is a straightforward, bolt-in affair, utilizing a right-sized, aluminum, air-to-air intercooler, seven pounds of gain and a pair of TIAL 38mm external wastegates to bleed off lose gases and optimize throttle response. While APS hasn’t installed the process on a Pontiac G8 GT yet, they have strapped its own blown HSV (with a three-inch cat-back exhaust) onto the rollers of a Dyno Dynamics dyno and came up with 557 hp and 583 lb.-ft. of torque additonally running 93-octane. Pricing hasn’t continued announced yet, but consideringthis setup has the possibility to redefine the bang-for-the-buck quotient in the segment.
[Source: APS via FreshTarmac]
