In QLD they let you fit engine size up to NA X3 boosted X2.5 rotories they X2 so a 13b becomes 2600cc na your car weighs 910kg so na you can fit 2730cc or 2275cc boosted. 13b non turbo would be ok but check with an engineer before you start
Does it have to be manually upgraded why not auto? i don't think nitro power or slicks should be considered, just members rides, a place for dyno sheets would be interesting, anyone else agree
Well done mate, this is one of the few times where having a few years on you helps, it at least gives you a period to work with and a few of us actually remember these cars