Mazda RX-7 FC3S
The middle-child RX-7, and the one that thinks
There are three RX-7s. The first-gen SA22C started the story and the FD everyone lusts after ended it. The FC sits in the middle, the last analogue rotary from before Mazda got clever with sequential turbos and a nest of computers. If the shape rings a bell, the crystal-white one belongs to Ryosuke Takahashi in Initial D, the “White Comet of Akagi.” He is the brains of the Akagi RedSuns, so the FC has always been the thinker's rotary rather than the hothead's.
The 13B, and the 1.3 litres that aren't really there
Under the bonnet is the 13B, a twin-rotor Wankel. Everyone calls it a 1.3-litre, but a rotary measures its size in a funny way: two 654cc chambers, so 1308cc on paper that behaves like a much bigger engine when it comes on song. In naturally aspirated trim it makes around 160 PS (146 hp in US spec), smooth and happy to rev to the roof. The one you came for is the Turbo II, the single-turbo 13B-T with an intercooler, good for about 185 PS early and roughly 200 PS once Mazda firmed it up. Mazda sold a convertible too, the FC3C, but only with the NA engine, so a factory open-top Turbo II never existed.
Series 4 or Series 5, and why it matters
The FC ran from 1985 to 1992 in two clear halves. Series 4 (1986 to 1988) is the earlier, lighter car with a 7,000rpm redline and simpler electronics. Series 5 (1989 to 1992) is the facelift: a tidier nose and tail, better engine management, lighter rotors, a higher compression ratio and an 8,000rpm redline. Most people who have owned both reckon the Series 5 is the one to have, and the turbo cars picked up real power along the way. If you are stuck choosing between two otherwise equal FCs, let the series break the tie.
The Infini: the sharp JDM special
The grade to know is the Infini, wearing that infinity badge, a Japan-only run of the Series 5 turbo car built in small yearly batches. Bilstein dampers, BBS wheels, a limited-slip diff and a light going-over of the tune took it to around 215 PS. It is the FC a Japanese enthusiast would have chased new, and it is the very car Ryosuke drives on screen. Below it, GT-X is the standard JDM turbo grade and Turbo II is the export badge for the same idea.
| Grade | Engine | Aspiration | Power | The short of it |
|---|---|---|---|---|
| NA | 13B | NA | ~160 PS | The analogue daily, revs sweetly |
| Cabriolet | 13B | NA | ~160 PS | Open-top, NA only, roughly 22,000 built |
| GT-X | 13B-T | Turbo | ~185 PS | Standard JDM turbo grade |
| Turbo II | 13B-T | Turbo | 185 to 200 PS | The one most buyers actually want |
| Infini I to IV | 13B-T | Turbo | ~215 PS | JDM special: Bilstein, BBS, LSD, sharper tune |
Buying one: the rotary is all that matters
A rotary is glorious when it is healthy and a money pit when it is not, and the one job before you hand over cash is a warm compression test on a proper rotary tester. Warm, because a cold reading will flatter a tired motor. You want strong, even numbers across every face and nothing sitting low, because a soft face means the apex seals are on the way out and a rebuild is not pocket money. Rust likes the sills and the rear arches, and the strut towers are worth a torch too, since these cars are all well past 30 now. On the Turbo II, the ageing web of vacuum hoses and solenoids that runs the boost is a classic headache, cheap parts but fiddly to get right. A healthy rotary really comes down to one thing: honest maintenance history. Buy the paperwork before you buy the paint.
So is the FC the one for you?
If you want the rotary experience without FD money, this is it. The FC is cheaper to buy and simpler to live with than its famous younger brother, and a good Turbo II still shoves you along nicely. Chase a clean Series 5, ideally a documented Turbo II or an honest Infini if one turns up, and put your cash into the compression figures and the service file rather than the shiniest respray. Get that right and you own the RX-7 that Ryosuke would nod at. Get it wrong and you own a very pretty engine rebuild.
Own an FC, or hunting one?
Log your RX-7 FC in the registry, compression numbers and all, and swap notes with the rotary owners who have already been down this road.
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