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South Side Performance GTR820RR Turbos Net Big Horsepower

January 25, 2009

South Side Performance’s new turbo kit hit the scene just a week ago but the first dyno numbers are in already. On the largely standard ZCG/SSP demo car it’s made 645hp @ the wheels with 645 ft lbs of torque. Average power and torque is up everywhere over stock and should make for one hell of a drive.

Boost for this run was 21psi and they managed to keep the AFR under control without putting the engine at risk at any time. This has got to be the limit of the standard fuel system surely?

Modifications to get it to this power include:

A video of the engine bay and exhaust sound follows the jump…