Mazda RX-7 (3rd Generation)

The third generation RX-7, FD (chassis code FD3S for Japan and JM1FD for the North American VIN), featured an updated body design. The 13B-REW was the first-ever mass-produced sequential twin-turbocharger system to export from Japan, boosting power to 255 PS (188 kW; 252 hp) in 1993 and finally 280 PS (206 kW; 276 hp) by the time production ended in Japan in 2002.

In Japan, sales were affected by tthis series' non-compliance with Japanese dimension regulations, and Japanese buyers paid an annual taxes for the car's non-complaint width. As the RX-7 was now considered an upper-level luxury sportscar due to the increased width dimensions, Mazda also offered two smaller sporting cars, the Eunos Roadster, and the Eunos Presso hatchback.

The sequential twin turbocharged system, introduced on this series in 1992, was extremely complex and was developed with the aid of Hitachi and previously used on the exclusive-to-Japan Cosmo series (1990-1996 JC-series). The system used two turbochargers, one to provide boost at low RPM,10 psi (0.7 bar) of boost from 1800 rpm. The second turbocharger activated in the upper half of the rpm range, during full throttle acceleration — at 4000 rpm to maintain 10 psi (0.7 bar) until redline. The changeover process occurred at 4500 rpm, with a momentary dip in pressure to 8 psi (0.6 bar), and provided semi-linear acceleration and a wide torque curve the throughout the entire rev range under "normal operation".[according to whom?]

Under performance driving the changeover process produced a significant increase in power and forced technical drivers to adjust their driving style to anticipate and mitigate any over-steer during cornering. The stock turbo control system used 4 control solenoids, 4 actuators, both a vacuum and pressure chamber, and several feet of preformed vacuum/pressure hoses all of which were prone to failure in part to complexity and the inherent high temperatures of the rotary engine.

Australia had a special high-performance version of the RX-7 in 1995, named the RX-7 SP. This model was developed to achieve homologation for racing in the Australian GT Production Car Series and the Eastern Creek 12 Hour production car race. An initial run of 25 originals were made, and later an extra 10 were built by Mazda due to demand. The RX-7 SP produced 204 kW (274 hp) and 357 N⋅m (263 lb⋅ft) of torque, compared to the 176 kW (236 hp) and 294 N⋅m (217 lb⋅ft) of the standard version. Other changes included a race-developed carbon fibre nose cone and rear spoiler, a carbon fibre 120 L fuel tank (as opposed to the 76 L tank in the standard car), a 4.3:1-ratio rear differential, 17-inch wheels, larger brake rotors and calipers. A "three times more efficient" intercooler, a new exhaust, and a modified ECU were also included. Weight was reduced significantly with the aid of further carbon fibre usage including lightweight vented bonnet and Recaro seats to reduce weight to 1218 kg (from 1250 kg). It was a serious road-going race car that matched their rival Porsche 911 RS CS for the final year Mazda officially entered. The formula paid off when the RX-7 SP won the 1995 Eastern Creek 12 Hour, giving Mazda the winning 12hr trophy for a fourth straight year. The winning car also gained a podium finish at the international tarmac rally Targa Tasmania months later. A later special version, the Bathurst R, was released in 2001 to commemorate this, in Japan only.

In the United Kingdom, for 1992, customers were offered only one version of the FD, which was based on a combination of the US touring and the base model. For the following year, in a bid to speed up sales, Mazda reduced the price of the RX-7 to £25,000, down from £32,000, and refunded the difference to those who bought the car before that was announced. The FD continued to be imported to the UK until 1996. In 1998, for a car that had suffered from slow sales when it was officially sold, with a surge of interest and the benefit of a newly introduced SVA scheme, the FD would become so popular that there were more parallel and grey imported models brought into the country than Mazda UK had ever imported. In Japan the FD3S production span is categorized into 6 models: #1 from 1991/12, #2 from 1993/08, #3 from 1995/03, #4 from 1996/01, #5 from 1998/12 and #6 from 2000/10. The model number (1 to 6) actually shows as the first digit of the 6 digits long JDM VIN, for example in VIN# FD3S-ABCDEF the A is the model number. A total of 9 limited editions (type RZ in 1992/10 (300 cars), RZ 1993/10 (150), R-II Bathurst 1994/09 (350), R Bathurst X 1995/07 (777), RB Bathurst X 1997/01 (700), RS-R 1997/10 (500), RZ 2000/10 (325), R Bathurst R 2001/08 (650), Spirit R 2002/04 (1500)) and 2 special editions (Bathurst R 1995/02, R Bathurst 2001/12) were produced.
 * Series 6 (1992–1995) was exported throughout the world and had the highest sales. In Japan, Mazda sold the RX-7 through its ɛ̃fini brand as the ɛ̃fini RX-7. Models in Japan included the Type R, the lightweight sports model Type RZ, the Type RB, the A-spec and the Touring X, which came with a four-speed automatic transmission. Only the 1993–1995 model years were sold in the U.S. and Canada. Series 6 came with 255 PS (188 kW; 252 hp) and 294 N⋅m (217 lb⋅ft).
 * In 1993, three North American models were offered; the "base", the touring, and the R models. The touring FD included a sunroof, fog lights, leather seats, a rear window wiper and a Bose Acoustic Wave system. The R (R1 in 1993 and R2 in 1994–95) models featured stiffer suspensions, an additional engine oil cooler, an aerodynamics package, purple-hued microfiber seats, and Z-rated tires. In 1994, the interior received a small update to include a passenger air bag, and a PEG (performance equipment group) model was offered. This model featured leather seats and a sunroof. It did not include the fog lights or Bose stereo of the touring package. In 1995, the touring package was replaced by the PEP (popular equipment package). The PEP package contained leather seats, sunroof and fog lights, but didn't have the Bose Stereo nor the rear window wiper.
 * In Europe, only 1152 examples of this model were sold through the official Mazda network. Only one spec was available and it included twin oil-coolers, electric sunroof, cruise control and the rear storage bins in place of the back seats. It also has the stiffer suspension and strut braces from the R models. Germany top the sales with 446 cars, while UK is second at 210 and Greece third with 168. The European models also received the 1994 interior facelift, with a passenger air bag.
 * Series 7 (1996–1998) included minor changes to the car. Updates included a simplified vacuum routing manifold and a 16-bit ECU which combined with an improved intake system netted an extra 10 PS (7 kW). This additional horsepower was only available on manual transmission cars as the increase in power was only seen above 7000rpm, which was the redline for automatic transmission equipped cars. The rear spoiler and tail lights were also redesigned. The Type RZ model was now equipped with larger brake rotors as well as 17 inch BBS wheels. In Japan, the Series 7 RX-7 was marketed under the Mazda and ɛ̃fini brand name. The Series 7 was also sold in Australia, New Zealand and the UK. Series 7 RX-7s were produced only in right-hand-drive configuration.
 * Series 8 (1998–2002) was the final series, and was only available in the Japanese market. More efficient turbochargers were available on certain models, while improved intercooling and radiator cooling was made possible by a redesigned front fascia with larger openings. The seats, steering wheel, and instrument cluster were all changed. The rear spoiler was modified and gained adjustability on certain models. Three horsepower levels are available: 255ps for automatic transmission equipped cars, 265ps for the Type RB, and 280ps available on the top-of-the-line sporting models. The high-end "Type RS" came equipped with Bilstein suspension and 17-inch wheels as standard equipment, and reduced weight to 1,280 kg (2,822 lb). Power was increased with the addition of a less restrictive muffler and more efficient turbochargers which featured abradable compressor seals, 280 PS (206 kW; 276 hp) with 313.8 N⋅m (231 lb⋅ft) of torque as per the maximum Japanese limit. The Type RS had a brake upgrade by increasing rotor diameter front and rear to 314 mm (12.4 in) and front rotor thickness from 22 mm (0.9 in) to 32 mm (1.3 in). The Type RS version also sported a 4.30 ratio differential, providing a significant reduction in its 0–100 km/hr time. The gearbox was also modified, 5th gear was made longer to reduce cruising rpm and improve fuel efficiency. The very limited edition Type RZversion included all the features of the Type RS, but at a lighter weight (at 1270 kg). It also featured custom gun-metal colored BBS wheels and a custom red racing themed interior. An improved ABS system worked by braking differently on each wheel, allowing the car better turning during braking. The effective result made for safer driving for the average buyer. Easily the most collectible of all the RX-7s were the last 1,500 run-out specials. Dubbed the "Spirit R", they combined all the "extra" features Mazda had used on previous limited-run specials with new exclusive features like cross-drilled brake rotors. Sticker prices when new were 3,998,000 yen for Type-A and B and 3,398,000 yen for Type-C. Mazda's press release said "The Type-A Spirit R model is the ultimate RX-7, boasting the most outstanding driving performance in its history."
 * There are three models of "Spirit R": the "Type A", "Type B", and "Type C". The "Type A" is a two-seater with a 5-speed manual transmission. It features lightweight red trim Recaro front seats as seen in the earlier RZ models. The "Type B" has a 2+2 seat configuration and also sports a five-speed manual transmission. The "Type C" is also a 2+2, but has a four-speed automatic transmission. Of the 1504 Spirit R's made, over 1000 were Type A's. An exclusive Spirit R paint color, Titanium Grey, adorned over 700 of the 1500 cars sold.