Mazda 767

{{Short description|Prototype racing car}}{{Racing car | name = Mazda 767<br>Mazda 767B | image = Mazda 767B cc.JPG | designer = Nigel Stroud | caption = A 767B at Central Circuit in 2007 | category = Group C/IMSA GTP | predecessor = Mazda 757 | successor = Mazda 787 | production = 1988-1989 | chassis = Carbon-fiber, Kevlar, and aluminum honeycomb monocoque | suspension = Double wishbones with inboard coil springs over shock absorbers | engine name = 767: Mazda 13J-M 2,616 cc (159.6 cu in) 4-rotor naturally aspirated, mid-engined, longitudinally mounted<br>767B: Mazda 13J-MM 2,616 cc (159.6 cu in) 4-rotor naturally aspirated, mid-engined, longitudinally mounted<ref>{{cite web|url = https://members.tripod.com/cp_www/rotary/pg03.htm#13J| title = 4 Rotor Engine info (Mazda factory and aftermarket conversions)| date = 6 May 2006 | access-date = 24 March 2025}}</ref> | team = {{flagicon|JPN}} Mazdaspeed | gearbox name = Mazda/Porsche | gears = 5-speed | transmission type = manual | power = 767: 500 hp (373 kW) @ 8,500 rpm<br>767B: 630 hp (470 kW) @ 9,000 rpm | brakes = Rays Volk discs | weight = 800 kg (1,764 lb) | debut = 1988 Suzuka 500 km (767)<br>1989 24 Hours of Daytona (767B) | last_event = 1992 Fuji 1000km | races = 38 | wins = 0 | poles = 0 | fastest laps = 0 | cons champ = 0 | drivers champ = 0 }}

The '''Mazda 767''' and '''767B''' are prototype racing cars that were built by Mazdaspeed for the 24 Hours of Le Mans running under the International Motor Sports Association-specification GTP class. The 767 replaced the 757 in 1988, upgrading to a newer and larger four-rotor ''13J'' Wankel engine, which produced nearly {{Convert|600|hp|abbr=on}}.<ref>{{Cite web|url=https://www.topspeed.com/cars/mazda/1989-mazda-767b/|title=1989 Mazda 767B @ Top Speed|date=October 9, 2017|website=Top Speed}}</ref><ref>{{cite web|url=https://www.hemmings.com/stories/2017/02/23/on-the-path-to-greatness-1989-mazda-767b|title=Mazda 787B|access-date=19 June 2022}}</ref><ref>{{Cite web|url=https://www.ultimatecarpage.com/car/767/Mazda-767B.html|title=1989 Mazda 767B - Images, Specifications and Information|website=Ultimatecarpage.com}}</ref><ref>{{Cite web|url=https://www.mazda.com/en/innovation/lemans30th/|title=30th anniversary of Le Mans victory commemorative site|website=www.mazda.com|date=23 June 2021 }}</ref><ref>{{Cite web|url=https://historicmotorsportcentral.com/2017/02/14/focus-the-four-rotor-mazda-767b-003/|title=#Focus – The Four Rotor Mazda 767B-003.|first=Louis|last=Quiniou|date=February 14, 2017}}</ref>

Two 767s were entered at 1988 24 Hours of Le Mans, finishing 17th and 19th overall, but they finished behind a sole 757, which was able to finish 15th. In the All Japan Sports Prototype Championship (JSPC), Mazda managed fourth in the constructors' championship. For 1989, Mazda upgraded the 767 into the 767B, and initially tested it in the International Motor Sports Association 24 Hours of Daytona, where it was successful in finishing fifth overall. Later in the year, Mazda returned to Le Mans with two 767Bs and an older 767. The 767Bs were able to finish seventh and ninth overall, while the lone 767 was able to finish 12th. However, in JSPC, the results were not as promising, as Mazda finished a mere 5th in the championship. For 1990, a single 767B was entered alongside two newer 787s, and was the only car of the three to finish, although in 20th overall.<ref name="auto">{{Cite web|url=https://www.conceptcarz.com/s27193/mazda-767b.aspx|title=1989 Mazda 767B technical and mechanical specifications|website=conceptcarz.com}}</ref><ref>{{Cite web|url=http://tech-racingcars.wikidot.com/mazda-767|title=Mazda 767 group C (1988) - Racing Cars|website=tech-racingcars.wikidot.com}}</ref><ref>{{cite web|url=https://www.racingsportscars.com/type/photo/Mazda/767.html|title=Mazda 767|access-date=19 June 2022}}</ref>

==References== {{Reflist}}

767 Category:IMSA GTP cars Category:Cars powered by Wankel engines Category:24 Hours of Le Mans race cars Category:Group C cars Category:Sports prototypes