electric superchargers?

"Anne Onime" > wrote in message
...
>I saw a doggy spiv on eBay selling electric superchargers.
> When the ad claims improved fuel economy, I know it must be
> a con.
> Now how can this be worthwhile? If the supercharger drew 80 A,
> then that's only 1 kW going in.
> A few minutes with a search engine, and I find that mechanically
> driven superchargers can use over 40 horsepower at full boost.
> So, the electric scam might give you 0.5% more power?
> At least you would not have to beef up the drivetrain.

Google this subject and you will find that the electric
superchargers dont give much, if any, bang for the buck.