I think i may have found a supercharger that fits in a beetle engine bay!
With second hand Judson and Shorrock kits being few and far between these days and selling for four figure sums i thought this may be of interest to some of you.
Whilst randomly searching the internet i came across this:
Its an AMR 300 Mini supercharger originally used in the Subaru Vivio and Nissan March.
The good bits are:
1. It measures approximately 18.5cm in length (including the pulley) and the main body is around 15cm wide and 10.5cm tall so should fit snugly next to the alternator.
2. Its rated for engines up to 47KW or 63BHP and is therefore perfectly suited to a stock small capacity aircooled engine. Theres also a slightly larger version called the AMR 500 which is a cm or two larger in some dimensions but is rated up to 81KW or 101BHP, perfect for slightly larger motors.
And after much searching i've also found someone who has made the conversion in Australia although there is very little information. The install is not the neatest but it could certainly be improved.
As far as i can see, all you will need is a modified throttle linkage / cable, an oil feed and drain running back into the case, an SU carb and some mounting flanges and adapters. Maybe the stock intake manifold centre section could be replaced withe a T piece for increased flow and of course a new bottom pulley would need to be added with a belt to the charger.
Its not something that i can see myself doing in the near future but i thought this may interest some of you power pioneers out there, especially with all this talk of Hot 1200 monster mouse motors and the like.