Forg I’ve never heard of a production line 242GT turbo
There wasn't one. The GT model was phased out for YM 1981 and the first factory turbos (non-intercooler) took their place. Bit of a US history lesson is here. AFAIK the phrase "242 GT turbo" was coined by Mike Raymond to describe Mark Petch's 405 ex-Belgian car, which got a 242GT-like silver paint job when he brought it and Robbie across the pond.
Forg But no turbo ex-factory in any 24x delivered here
Well, no turbo car ex-factory delivered and intended for sale by a dealer, at least (noting Anthony's comment about the sole RHD factory turbo 240 brought here for test of concept).
Suspension settings… ah, that's where it gets tricky. It's said from an enthusiast driver's POV, the YM 79 242GT had the best suspension setup from factory of any 240 ever, but it didn't win hearts (thus buyers) from those who wanted soft ride and 'safe' handling. So the sway bar sizes, etc, were changed for the YM80 GT. At least in the OZ market. But since there's a huge swag of spring and sway bar sizes and rates from factory, and fitting of them varied from market to market, good luck nailing down a single spec. Ditto with the diff ratios. The "19xx New Car Features" Green books for the 240s should shed some light on what was fitted to what and where from factory.
IMO, a normally-aspirated 242 will be not be competitive, not even in class, especially given how the rotary Mazzduhs are in the same engine capacity category. A non-intercooled, blueprinted factory spec B21 turbo might be competitive, but would be rather fragile and expensive to make it so.
But if we're talking turbo kits in OZ for 240s in the early 1980s - didn't Graham Ritter and Phil Ward also do kits for them too, back in the day? (Unfortunately the stash of 'Turbo' magazines from my youth in that period last century is long gone and turned to pulp).
