• 1989 Mazda 767B

    The Mazda 767 debuted for the 1986 season
  • The 767B was born in 1989
  • Side Exhaust, reliable chassis
  • First LeMans win: 1991
  • Racing Cockpit
  • Spaceship-like buttons
  • Wankel engine, 600 horsepower, 390 pound-feet of torque
  • Peak power @ 8,500 rpm
  • Peak torque @ 7,000 rpm
  • Double wishbone suspension
  • 1,764 pounds.
  • One recently sold for $1.75 million

Rotary race power, multiplied by four

Mazda definitely lives up to the whole “zoom-zoom” branding thing its got going for it. With a variety of sports cars to its name, including the indispensable MX-5, plus a solid dose of fun instilled in just about every model it produces, this is the go-to manufacturer if you’re looking for an enjoyable experience behind the wheel. Per tradition, much of that driving engagement can be traced back to competition on the track, a place where Mazda boasts a long resume of experience and success. Looking over the list of Mazda’s accomplishments, one of the most impressive bullet points is an outright win at the 24 Hours of Le Mans, something no other Japanese manufacturer can claim. Clinching that victory was the 787B, the culmination of years of trial and error. Featured here is the preceding 767B, one of the most important components to the development of Mazda’s Le Mans-winning 787. As an advanced prototype racer, the 767B was designed for competition in the IMSA-spec GTP class, where it saw a good deal of success.

Introduced in 1988 by Mazdaspeed, the Japanese manufacturer’s performance division, the 767B replaced the outgoing 757 prototype racer, another GTP-class 24 Hours of Le Mans competitor. Not only does this otherworldly speed wedge look the part of a top-notch competitor, but with an innovative four-rotor engine providing motivation, it was also one of the best-sounding race cars ever made. If you love triangle-shaped engines, this is one of the all-time superstars.

Continue reading to learn more about the Mazda 767B.

  • 1989 Mazda 767B
  • Year:
    1989
  • Make:
  • Transmission:
    five-speed sequential
  • Horsepower @ RPM:
    600 @ 8500
  • Torque @ RPM:
    390 @ 7000
  • car segment:
  • Purpose:
  • body style:

History And Background

1989 Mazda 767B Exterior
- image 727904

Mazda and the rotary engine go way, way back, all the way to the late ‘60s with the original Mazda Cosmo. Introduced at the height of the space race, the Cosmo mated out-there styling with a strange new engine designed by the German engineer Felix Wankel. For good or ill, Mazda has championed the powerplant configuration ever since.

By 1970, Mazda was getting serious about taking the rotary racing, offering up the 10A R2 powerplant in the British-built Chevron B16. By the time ‘80s rolled around, Mazda had recruited the talents of English designer Nigel Stroud, who worked with Mazdaspeed to create the Mazda 757 for competition in the 1986 season of the IMSA race series. Two years later, Mazda replaced the 757 with the 767, upping the ante with a new engine and a whole lot more power.

1989 Mazda 767B Exterior
- image 727923
One recently sold for $1.75 million
In 1988, Mazda replaced the 757 with the 767, upping the ante with a new engine and a whole lot more power.

The 767’s first outing was at the Suzuka 500 KM race in April of 1988. Only one of the two 767’s entered managed to finish, although the racer that remained ended up with a seventh-place finish overall. Following the Suzuka race, the 767’s went to the Silverstone World Championship, managing a first-place finish in the GTP class and a 9th-place finish overall.

Later that year, the 767’s went to the 24 Hours of Le Mans to complete alongside an older 757. Unfortunately, both finished towards the back with a 17th and 19th overall, even failing to overcome the older 757, which managed a 15th overall.

1989 Mazda 767B Exterior
- image 727913
Heading into the 1989 season, Mazda equipped the 767 with a new side exhaust and addressed the car’s reliability issues, and thus, the 767B was born.

Heading into the 1989 season, Mazda equipped the 767 with a new side exhaust and addressed the car’s reliability issues, and thus, the 767B was born. Results for the Japanese automaker started to improve, including GTP-class wins at a variety of races. First tested in the IMSA 24 Hours of Daytona, the 767B finished 5th overall. Mazda once again went to the 24 Hours of Le Mans that year, this time with a duo of 767B’s and a first-gen 767. The 767B’s managed 7th and 9th overall, while the 767 got 12th overall. Mazda followed it up with a 12th-place finish overall in the All Japan Sports Prototype Championship.

In 1990, Mazda created the 767’s replacement, the 787. After a bit of teething issues, the 787 finally managed an outright win at Le Mans in 1991. The 787 was followed by the MXR-01 in the early ‘90s, which became the very last Mazda in sports car racing to date.

These days, you can find the 767B racing at historic events like the Monterey Motorsports Reunion and Goodwood Festival of Speed, among other events, as well fetching upwards of seven-figures at public auction.

Exterior

1989 Mazda 767B Exterior
- image 727926
Side Exhaust, reliable chassis
It’s purposeful yet graceful. No wonder we love Mazda’s design schemes.

Outside, the Mazda 767B looks like a traditional race car should. It’s impossibly low, impossibly wide, and curvaceously designed. The fenders jut high over the large, deep-dish, roller-pin shaped wheels and tires, flowing back into straight side panels and an enormous rear wing. The intakes are massive, gulping in atmosphere to feed the powertrain and keep it chilly. The cockpit is a single, center-mounted bubble, while side view mirrors are mounted on tall, slender composite stalks. Glorious noises are emitted just ahead of the rear wheels from a large-mouthed side exhaust.

Further features include large aero tunnels in the side panels, a feature made possible by the inboard suspension set-up, plus a carbon fiber and Kevlar composite material for the exterior body panels.

It’s all quite functional, but at the same time, it looks fantastic. It’s purposeful yet graceful. No wonder we love Mazda’s design schemes.

Interior

1989 Mazda 767B Interior
- image 727917
Racing Cockpit

Sitting inside the all-business interior, the 767B’s control scheme looks like it was plucked from a spaceship. Drivers sit on the left-hand side of the cabin in a fixed-back bucket seat made from fiberglass, while a digital readout is mounted behind a detachable three-spoke steering wheel. Gear shifts are performed via a sequential shifter placed to the right of the driver. A variety of buttons and fuses adorn the dash, while a fire suppression system is mounted to the left of the driver. Carbon fiber and bare metal pervade throughout.

Drivetrain

1989 Mazda 767B Drivetrain
- image 727920
Wankel engine, 600 horsepower, 390 pound-feet of torque
At full chat, the 767B makes as much 600 horsepower, far more than the outgoing model’s paltry 450 horsepower.

Providing the motivation in the 767B is a mid-mounted Wankel rotary engine, which was updated to offer both more output and more displacement. Dubbed the 13J, the powerplant is an evolution of the Type 13 rotary engine, with the preceding iteration being a three-rotor 13G. By comparison, the 13J is a 4-rotor design, with all four combustion chambers adding up up to about 2.6 liters of displacement. Converted into “normal” cylinder engine displacement, that comes to about 5.2-liters. Redline is set at a head-spinning 9,000 rpm.

At full chat, the 767B makes as much 600 horsepower, far more than the outgoing model’s paltry 450 horsepower. Oh what a difference that extra rotor can make. Peak power hits 8,500 rpm, while peak twist (all 390 pound-feet of it) arrives at 7,000 rpm.

Like the previous 767 model, the newer 767B uses a five-speed sequential transmission from Porsche, which was obviously modified specifically for the rotary application.

Providing the go-juice is a 26.4-gallon fuel tank, the right spec for an endurance racer.

Chassis And Handling

1989 Mazda 767B Drivetrain
- image 727919
1,764 pounds.
The inboard springs and dampers make room for those larger aero tunnels.

Under the sponsorship-laden composite exterior, the Mazda 767B utilizes a monocoque construction with aluminum skin over a honeycomb core. The chassis was modified over the preceding iteration to incorporate the longer, four-rotor engine.

The suspension includes double wishbones at all four corners with inboard springs and dampers, which helps make room for those larger aero tunnels and downforce-making components. Maximum weight is set at 800 kg (1,764 pounds), with ballast mounted in the right spots for optimum weight distribution.

Finally, the steering is a rack-and-pinion set-up, while Rays Volk stopper discs haul it down in the braking zones.

Prices

1989 Mazda 767B Exterior
- image 727905
1989 Mazda 767B Exterior
- image 727907

Only three examples of the 767B were produced in 1989. If you would like to own one, they occasionally appear in auction, with one recent example selling at the Gooding & Co. event in Amelia Island for $1.75 million.

Competition

Nissan GTP ZX-Turbo

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- image 737182

While the 767B raged for glory, fellow Japanese manufacturer Nissan was also in the mix campaigning the ZX-Turbo in the IMSA championship. Running between 1985 and 1990, the GTP ZX-Turbo utilized a turbocharged VG30ET V-6 engine, the same powerplant Nissan equipped in the street-worthy 300ZX sports car. Nissan ended up clinching the constructor’s championship, after which the ZX-Turbo was replaced by the NPT-90.

Porsche 962

no article
- image 737183

With a debut in 1984 at the 24 Hours of Daytona, the Porsche 962 was a hugely dominant force in the world of IMSA racing, clinching a staggering 21 constructor’s championships throughout its career. Power comes from a 3.0-liter Type 935 flat-six engine, and funny enough, a few road-going iterations of the racer were built in the ‘90s.

Conclusion

1989 Mazda 767B Exterior
- image 727928

There’s a lot to like about this racer. Superficially, it’s a rather pretty thing to look at, and it makes an absolutely breathtaking noise when unleashed. More concretely, it represents Mazda’s unwavering commitment to making the rotary engine configuration work at the highest levels of competition. It’s because of cars like the 767B that Mazda wants to bring the Wankel powerplant back to its production lineup, and for that, we’re grateful.

  • Leave it
    • Experienced a good deal of teething issues
    • Not the car that won at Le Mans

References

Mazda 787b

1991 Mazda 787B
- image 10239
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Read our full review on the Mazda 787.

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