its not a aussie turbo, but my frend's uncle has (apparently) the most powerfui BA/BF falcon in australia
its a XR8 putting out 808.1HP at the rear wheels (with a final tune on the way); its a SMH 6.0Litre alloy block (american racing team custom cast block - fugen strong) with massively flowing heads, custom grind cams (all 4 of them - took around 4 hours of work to dial them in with the cam gears) big exhaust and a big V7-SYI supercharger that can handle 1200HP and a big front mount
its cool alright and has been featured twice in Perth Street Car mag (1st time it wasnt so wild), but he has had soooo many problems with it. the first time apparently he blew the engine cause the supercharger couldnt handle it, and now, just after it being finished, he went to motorvation and did something to the sump - and that wasnt even doing a burnout or anything
its an awesome car, but its had sooo much happen to it, and its hardly that realiable - something you would want with a hypo engine like that
there is something that makes japanese engines just a little more realiable