Just seen them on internet seem pretty cheap and no inter cooler is needed, also seem pretty simple to install in the car, anyone got one ?
Makes it more of an alternative to NOS than an alternative to a turbo or supercharger though... i'd rather stick a compressor and air reservior in the boot and then have the compressor trickle charge the reservoir, then vent into the intake.
3 mins is better than 10 seconds at a time. Also, you could run varying amounts of boost depending on your mood
1 hp is 750w give or take, I guarantee model aeroplane motors are nowhere near that, as the tiny wankel (petrol!) one I've seen was 0.33hp (250w).
Like I keep saying, for meaningful boost you'd need at least 80amps fed to the motor at 12v to get the power required to the compressor. Deep cycle batteries are all very well, but at 80 amps the battery would go flat and cook in minutes (deep cycle battieries are NOT suited to high current).
You'd at LEAST need a whole other belt driven alternator... but then you're essentially belt drving the compressor so might as well supercharge as there is potential for much higher gains.