Well many dozens of installations later everything has proven to be unfounded, in fact as I started out the general consensus was that a Subaru 4 cyl NA engine could no be supercharged, many 100s of people had failed - it was a proven fact........ always costing themselves engines etc
Today, there are now many Subaru 4 cyl NA engines with both auto and manual trans running boost without issues, some are up to 10psi now on daily use. No one ever thought it possible, now its for certain that the motor is just as good at 10psi as say an LS1 V8 in a Commodore.
I doubt the H6 will be any different, I am aware of people with H6 engines in the UAE with day temp of 45C, there is no issue with engine cooling these owners say, therefore adding an SC in Australian conditions will not overly tax the cooling system.
Its likely because it is centrifugal supercharger, so gentle on the drive train compared to all other types and yet can deliver a good driving sensation.
There is no real secret, just dont ever break the rules and yes it is Rocket Science - you go faster
