Yeah, I think you’re right. It all started with flying tomatoes saying the supercharger makes his car more fuel efficient. That in itself is funny. What he’s likely experiencing is improved volumetric efficiency from full exhaust, as well as a leaner tune than stock. Simple…the tune requests less fuel thanks to a leaner AFR, and makes power. It has nothing to do with the supercharger. The supercharger if anything will hurt. It’s a parasitic power adder that the engine drives.
Then badblue joined in with this condusing statement:
[quote=badblueRS4]Yea I agree the MPG should go up. Since the motor is exerting less work, and the blower is subsidizing some of that power, similar to turbo cars.
[/quote]
The motor is exerting less work? huh? The supercharger just forces more air into the engine. It doesn’t do any work. It is also parasitic in that it is driven by a pulley that is attached to the engine’s serp belt loop.
Then he said the turbos are ‘less parasitic’. Did he mean to say 100% less? because the turbo uses exhaust gas, and isn’t being driven by the engine.
All around the more that crew talks, the more they show the world how much they don’t know.