Originally Posted by nuclearxp
From what I've heard you better plan on spending alot of time on a dyno if you plan on twincharging. The interaction of turbo and supercharger boost will create very dynamic boost levels making for an exhausting tune process. Also plan on adding larger injectors to handle extra air coming in. Imagine how hot that air is going to be going in the engine coming from a turbo and THEN through a supercharger (not good for making power). My two cents is to stick with one or another.
Actually, isn't one of the potential benefits to twin-charging that the final air charge will be cooler?
Obviously this won't be true in all cases, but if you compare a supercharger with a small pulley, to a twin-charged system with an intercooler between the turbo and */C, the */C running a stock pulley, the twin-charged system should be cooler (given the same boost levels), right? Compressing the air heats it, but with an intercooler between the two compressors, you're able to remove some of the heat, which you can't do in our theoretical */C-only application.
But yeah, seems like there would be some serious tuning to be done anyway.