GTM STG 2 SC, when will it be available?

fstrnldr

You will probably be capable of making enough power to need to build the block with the stage 2. The thing with a supercharger that you have to remember is that it takes horse power to make horse power. The supercharger is not "free" energy like a turbo. Meaning to achieve 500 whp the supercharger actually has to make more at the crank to overcome the parasitic loss caused by the supercharger itself. That means 500 whp (depending on the exact chargers efficiency) could equal enough horse power needed out of the motor to require an engine build.