Preliminary Weistec Supercharged M156 CLK63 Black Series Dyno Results - 640 wheel horsepower
Here are the preliminary results for JRCART's CLK63 Black Series running the Weistec supercharger. The car has the Weistec race supercharger package which includes the Weistec heads, cams, and fuel system including larger injectors. The car ran 14.5 psi of boost on stock internals which is incredible really. That is a lot of boost for the stock internals to handle. The tires were slipping on the dyno due to the power which can be seen in the graph so these are just preliminary results. They will be trying again with new rubber in the next few days and likely hitting the 7XX whp range.