Twin screw plus light weight pulleys,etc?
 

It sounds like it would be obvious to add lightweight pulleys since you are
introducing significant rotational mass to the belt train.

how about the rest? like:
-light weight flywheel
-light weight drive shaft

I know that in the case of a stock car with all these light weight components
driveability is actually affected in some aspects. it makes the car hard to drive without stalling etc. but since the SC is introducing new weight, this would compensate and make the SC even more efficient.

thoughts?

Working just fine on mine. our pulley (1 pound) with the innovate kit.

Tom

Actually I guess it depends on the person but I feel it is better to drive than stock when you change the parts to lightweight parts. Im running a extremely light drivetrain consisiting of lightweight clutch and flywheel carbon driveshaft and 3 lightweight pulleys on my car to include lightweight wheels as well as other light and unrestricting parts. It helps out with fuel efficiency for what ive experienced and when I did move to a FI system which is going to be a supercharger would make the system run a lot smoother and help it to squeeze every ounce of power to the ground.

you are exactly the person I need to talk to.
that's exactly the setup I've had in mind.

Do you have any idle issues with all those parts?