Eaton M45 help please?

[///Harlis]

G'day, i decided a while ago i would supercharge my M42. I have a friend who has a spare Eaton M45 laying around that i can use. I have mechanical experience but not this kind of stuff.

To my understanding the M45 pushes 750cc of air per revolution, and shouldn't be revved past 14,000rpm. i was wondering how to calculate the crank pulley size i will need to get 6 psi. the standard M45 pulley is 66mm if im not mistaken. does anyone have a suggestion for what pulley to use on the crank. i was going to take the fan off, get an electric one, then maybe get someone to fab a pulley of the correct size to go where the fan was.

not sure if i am jumping in over my head and should just get an expert to do this or not... let me know what you guys think.

thanks

[Appletree IS supercharged]

if you use an M43 crankpully machined down this gives 13,800 rpm on the charger at the red line and makes around 7-8psi which is safe on the standard m42 engine, i used the eaton m45 charger on my first set up, if you search through my postes you will see a big thread about it linked to the e30zone.

[///Harlis]

thanks mate. i'll have a look