I know these are a very popular supercharger with some of the Nissan and other groups as they're relatively cheap for the amount of air the blow. Has anyone tried adapting one to a 4a, 1m or 3v? All I found was that they're very efficient and the eunos 800 uses a 1000cc type. Any other info and feasibility?

I had one of these superchargers that I was going to adapt for my 4AGE. They are basically a Lysholm AX1200 in a customised housing to suit the Mazda (Eunos) Millenia (800M) miller cycle motor.
 

 
The main issues with these superchargers is that they are known for bearing seal failures that lead to oil blowing through the supercharger. The bearings and seals are not cheap to replace, PSE in the USA is the only company I know that does a repair for them and charges $1500+. When playing the second hand game, it's highly likely you could end up with a failure not long after conversion and then spending $1500 is a lot of money when you could always look into purchasing a similar, more serviceable twinscrew supercharger (Sprintrex, Autorotor or Whipple) for $1800 - 2200.

Thanks for the advice, I'm looking at a car tomorrow that has a spare charger but if it looks worn I'll give it a miss.
 
Cheers,
 
Nick.

Good advice saved me, loads of oil in the intake and the guy has been told its valves but only taps when the engines running not when its turned over by starter so my guess is the charger is dead. The spare has scoring along the scrolls but hard to tell if its ok otherwise.