A small-wheeled, grip-limited small-capacity rotary, dripping in a lairy paint job you might’ve seen rifling through your grandad’s slides, shot sometime in the late 1970s.
Andy had spent six or seven years accumulating Mazda Factory Racing (MFR) 12A bits, Greens got to work piecing together the special 12A that forms the heart, and, importantly, the character of the RX-3. The block comprises MFR housings, heavily ported, stuffed full of all the good stuff. Ultra lightweight (brand new!) rotors with Iannetti ceramic seals, a race-balanced rotating assembly and proven mods to the oiling set-up ensure a stout set-up between the RX-3’s struts.
Initially, an IDA carburettor sat atop the MFR intake manifold, but after a bit of mucking around on the dyno the lads made the call to go injected. An EFI hardware throttle body lurks under the Group C style airbox, all controlled by a Link G4X Fury, enough for a fiery 330hp at the fat rear tyres, the trademark 12A shriek emanating from the big boiler muffler in between bursts of flame.
Words* & Photos: Richard Opie, NZ Performance Car, Issue 305
*Note: the words have been condensed and sometimes slightly edited for our site, use link above to view full article.
Block: Ultra lightweight clearanced rotors, race balanced, modified oil system, modified oil pump, modified porting, Iannetti ceramic apex seals, Mazda springs and seals, gated and baffled sump