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and by
February 1992 the first car was assembled into these humble beginnings. The 4-rotor was giving up tremendous power as well, in the region of 200+, to its competitors. And while the regulations seemed give the Mazda a weight advantage, it certainly wasn’t able to bring that to bear. Considering year one a development year, as with all of the one-year wonders, year two certainly would have had much more to offer. Alas St. Yves relates that his 1993 budget had actually been approved by Mazda USA in October 1992 but for Mazda Corporation to announce a month later they were pulling out of racing: “The 4-rotor engine was the only component of the car that came from Japan. We were informed a few days later that they were discontinuing the experimental engine program, which was the 4-rotor, and that was the demise of the RX-792P program”. So team had a budget, but no engines. By December 1992 the doors were closed.
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to the 1993 season,” said Dick St. Yves, Mazda
Motorsports Manager 1988-1993. Subsequently, design mockups were underway to move the oil cooler into the side pods and enlarging the front-mounted radiator. A program of weight reduction was also being considered as the car never scrutineered at its 1,750 lb (790 kg). minimum anyway, typically coming in around 75 lb (34 kg). above it.
477:, the second RX-792P chassis was completed. Both cars were entered in the event, but an accident in practice forced the second car to not run. The lone remaining RX-792P managed to take the green flag, finishing in a distant 15th place, nearly twenty laps behind the winner. With the second chassis repaired, Mazda moved to
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The RX-792P program was done to an astonishingly small budget according to Dick St. Yves: “I have been told that Toyota’s budget was $ 20,000,000 and Nissan was in the area of $ 35,000,000, our budget was $ 5,000,000”. The program started in May 1991 in a vacant warehouse in
Charlotte, North Carolina
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The RX-792P effort was full steam ahead for 1993 and the group began to look towards improvements that could be made the chassis. On IMSA’s sliding weight vs. engine displacement scale, the Mazda 4-rotor came in at 1,750 lb (790 kg) and many teams had cause for concern about this, thinking
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with nowhere to race. At the same time, IMSA announced plans to abandon the GTP category after the 1993 season, turning instead to a new category of open-cockpit prototypes. This meant that Mazda would only have one more year to be able to use the RX-792P in North
America only before they would have
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With that in mind, Mazda was thinking about what could be done to close that power gap. Mazdaspeed supplied the program’s 4-rotor engines and had developments undergoing testing on the dynomometer in Japan that were producing in excess of 700hp. “Needless to say we were excited and looking forward
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advantage. While the RX-792P showed occasional turns of speed, the reality was that the engine simply was giving up far too much horsepower to its competitors, thus making the perceived power-to-weight bias within the regulations just that, a perception and not a reality. Also, any advantage that
516:. This trend would continue at the final race of the season, as neither car would make it to the checkered flag. This string of bad results would leave Mazda a distant sixth in the constructor's championship, although Price Cobb would be able to finish eighth in the driver's championship.
466:, the first chassis appeared at the Grand Prix of Miami. Unfortunately, a fire caused by the hot exhaust touching the car's bodywork would force the car to be withdrawn before the race even took place. This problem continued at the
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4-rotor in the World
Sportscar Championship. However, IMSA rules continued to allow the use of rotaries, which led Mazda to bring the R26B to North America, with refinements to better suit the shorter races and circuits.
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Problems crept up once again as the series moved to New
Orleans, with one entry managing a mere 16th. However, the Mazda team would quickly rebound to take their best finish of the season, with a second place at
481:, where the cars would finally show their potential. After qualifying in the middle of the grid, the pair would come home in third and fourth places, three laps behind the winning
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to construct the monocoque, while Fabcar would assist in the project. Due to the different style of racing, the new car would not share much from Mazda's previous effort, the
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Fuller, Michael J. and J.A. Martin, Inside IMSA’s
Legendary GTP Cars: The Prototype Experience. Minneapolis: Motor Books International, 2008. Pages 232-245.
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Managed by Mazda
Motorsports, the first RX-792P was completed shortly before the 1992 season began. The team consisted of drivers
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might have been was certainly offset for the need to cool the car and the corresponding drag relative to power output.
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Following the 1992 season, sports car racing throughout the world was greatly altered. Both the
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before the team once again failed to finish with either car at
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A quick rebound would see fourth and fifth places at
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690 hp (700 PS; 515 kW) at 9,000 rpm
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427:For a chassis, Mazda would use the expertise of
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372:Following many successful years running the
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106:Learn how and when to remove this message
541:that the Mazda engine had been gifted a
442:A total of three RX-792Ps were built by
530:All Japan Sports Prototype Championship
489:the RX-792Ps finished sixth and ninth.
406:All Japan Sports Prototype Championship
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44:adding citations to reliable sources
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318:830 kg (1,829.8 lb)
31:needs additional citations for
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607:"Mazda RX-792P Specifications"
605:Wouter Melissen (2015-01-25).
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419:forced Mazda to abandon their
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292:4,800 mm (189.0 in)
284:2,667 mm (105.0 in)
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809:IMSA Grand Touring Prototypes
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300:1,981 mm (78.0 in)
526:World Sportscar Championship
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846:Chevrolet Corvette GTP
609:. ultimatecarpage.com
574:Nick D (April 2016).
543:power-to-weight ratio
473:By the next round at
462:. Opting to skip the
337:IMSA GT Championship
40:improve this article
1011:Nissan GTP ZX-Turbo
637:Crawford Composites
468:12 Hours of Sebring
464:24 Hours of Daytona
429:Crawford Composites
639:- Crawford history
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96:February 2018
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51:Find sources:
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35:
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29:This article
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23:
18:
17:
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906:Jaguar XJR-9
901:Jaguar XJR-7
896:Jaguar XJR-6
891:Jaguar XJR-5
767:Mazda RT24-P
755:(2014–2021):
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692:(1983–1992):
611:. Retrieved
580:. Retrieved
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561:
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520:Cancellation
510:Road America
507:
495:Watkins Glen
491:
475:Road Atlanta
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460:Pete Halsmer
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262:Transmission
143:Manufacturer
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38:Please help
33:verification
30:
1067:Spice SE92P
1062:Spice SE91P
1057:Spice SE90P
1052:Spice SE89P
1047:Spice SE88P
1042:Spice SE86C
1037:Porsche 962
1021:Porsche 935
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811:(1981–1993)
679:(1983–2021)
499:Laguna Seca
368:Development
171:Lee Dykstra
1092:Categories
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856:Eagle HF89
613:2017-12-20
582:2017-12-20
558:References
456:Price Cobb
364:rototype.
333:racing car
274:Dimensions
233:Powertrain
227:Mazda 787B
217:RMR layout
158:Production
66:newspapers
996:Mazda GTP
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408:at home.
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444:Crawford
167:Designer
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138:Overview
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80:scholar
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390:Nissan
382:rotary
305:Height
289:Length
268:manual
239:Engine
212:Layout
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729:787/B
724:767/B
674:Mazda
485:. At
345:Mazda
328:is a
297:Width
205:Coupé
184:Class
147:Mazda
87:JSTOR
73:books
714:737C
709:727C
704:717C
528:and
458:and
433:787B
421:R26B
396:and
378:MX-6
374:RX-7
353:RX-7
324:The
189:IMSA
161:1992
59:news
753:DPi
719:757
699:GTP
417:FIA
341:GTP
339:'s
42:by
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