Debut: July 2015

 




   

.: Simon Godfree's Mazda 787B Le Mans

Brand:

Tamiya

Scale:

1/24

Modelling Time:

40 hrs

PE/Resin Detail:

none

Comments:

"Studio27 Elfini Decals"


Mazda 787B - Le Mans (wonderful sound) (HD)

Mazda 787B

From Wikipedia, the free encyclopedia
Mazda 787
Mazda 787B
Mazda 787B at the Mazda Museum.
Category Group C/IMSA GTP
Constructor Mazda
Advanced Composite Technology
Designer(s) Nigel Stroud
Technical specifications
Chassis Kevlar and carbon compositemonocoque
Suspension (front) Double wishbone pullrod operated inboard Bilstein spring dampers.
Suspension (rear) Double wishbone top rocker-operated inboard spring dampers.
Axle track 1530/1450 mm (787)
1534/1504 mm (787B)
Wheelbase 2640 mm (787)
2662 mm (787B)
Engine Mazda R26B 2616 cc 4-rotornaturally aspiratedMid-enginedlongitudinally mounted.
Transmission Mazda/Porsche 5-speedmanual
Weight 830 kg (1,830 lb)
Fuel Idemitsu
Tyres Dunlop 300-640x18/355-710x18 (275-620x17/330-700x17)
Competition history
Notable entrants Japan Mazdaspeed
Notable drivers Belgium Pierre Dieudonné
Belgium Bertrand Gachot
United Kingdom Johnny Herbert
Sweden Stefan Johansson
Japan Yoshimi Katayama
Republic of Ireland David Kennedy
Japan Tetsuya Ota
Brazil Maurizio Sandro Sala
Japan Yojiro Terada
Germany Volker Weidler
Japan Takashi Yorino
Debut 1990 1000 km of Fuji (787)
1991 430km of Suzuka (787B)
Races Wins Poles F.Laps
21 1 0 0
Constructors' Championships 0
Drivers' Championships 0
Mazda 787B at the Monterey Historic Races 2004.

The Mazda 787 and its derivative 787B were Group C sports prototype racing cars built by Mazda for use in the World Sportscar ChampionshipAll Japan Sports Prototype Championship, as well as the 24 Hours of Le Mans from 1990 to 1991. Designed to combine a mixture of the Fédération Internationale du Sport Automobile (FISA) Group Cregulations with the International Motor Sports Association (IMSA) GTP regulations, the 787s were the last Wankel rotary-powered racing cars to compete in the World and Japanese championships, using Mazda's R26B engine.

Although the 787 and 787B lacked the single lap pace of World Championship competitors such as Mercedes-BenzJaguar, and Porsche, as well as Japanese Championship competitors Nissan and Toyota, the Mazdas had reliability which allowed them to contend for their respective championships. The reliability of the cars eventually paid off in 1991 when a 787B driven by Johnny HerbertVolker Weidler, and Bertrand Gachot went on to victory in the 1991 24 Hours of Le Mans. This remains as of 2014 the only victory by aJapanese marque as well as the only victory by a car not using a reciprocating engine design.

A total of two 787s were constructed in 1990, while three newer specification 787Bs were built in 1991.[1]

Development

At its heart, the initial design of the 787 was an evolution of the 767 and 767B designs that had been used by Mazda in 1988 and 1989. Many mechanical elements of the 767 were carried over by Nigel Stroud when he designed the 787,[2] but with some notable exceptions. Foremost was the replacement of the 767's 13J Wankel rotary engine. In its place, the brand new R26B was installed. The custom-built R26B featured a nearly identical layout and displacement, but included new design elements such as continuously variable intakes and three spark plugs per rotor instead of the 20B's two. This allowed for a maximum power output of 900 hp (670 kW) which was limited to 700 hp during the race for longevity[citation needed]. Porsche's five-speed gearbox was retained.[citation needed]

Other modifications made to the 787's design included a relocation of the radiators. Initially placed beside the cockpit on the 767, a new single radiator was integrated into the nose of the 787. Air moved from the blunt nose of the car underneath the bodywork and through the radiator before exiting at the top of the nose. A Gurney flap was affixed to the radiator exit to increase front end downforce. This new radiator location also meant a redesign of the doors of the car, where the old radiator design had been located. The intake in front of the door and exit behind were no longer necessary and were thus not included, giving the 787 a smoother bodywork design on top. To aid in rear engine and brake cooling, intakes were placed on the side bodywork, immediately above the exhaust cooling vents.[citation needed]

As before, Stroud's monocoque design was built from carbon and kevlar by Advanced Composite Technology in the United Kingdom. Carbon fiber body panels were affixed to the two initial chassis that were built in 1990.[citation needed]

787B

Following the 1990 season, Mazda continued development of the 787 chassis in order to make improvements on its pace and reliability. One major development was the intake system for the rotaries. In the past, Mazda had developed variable length telescopic intake runners to optimize engine power and torque for varying rpms. For 1991, the system became continuously variable, rather than previous versions that had steps for different engine ranges. The 787B's onboard ECU controlled the action of the telescopic intake.

Three new 787Bs were built for 1991, while the two existing 787s were also upgraded with the new intakes.

ɛ̃fini

From Wikipedia, the free encyclopedia
Not to be confused with Infiniti.
Mazda Ɛ̃fini

ɛ̃fini (アンフィニ) was a luxury vehicle division of Japanese automaker Mazda that operated between 1991 and 1997 in Japan only. Its inception as a brand emerged in the late 1980s when Mazda diversified its sales channels in the Japanese market with the launch of three new marques. The company created AutozamEunos, and ɛ̃fini, in addition to the Mazda and Fordbrands already marketed there. This selective marketing experiment ended in the mid-1990s due to economic conditions, largely attributed to the collapse of the Japanese asset price bubble in 1991. As a brand, ɛ̃fini encompassed most, if not all dealers formerly under Mazda's "Auto" dealer chain. It's pronounced like the French word infini. The name is actually written with a tilde over the initial lower case e (as in ɛ̃), and can therefore be assumed to be IPA, the pronunciation symbols universally taught in Japan, and quite often used in product naming.

The ɛ̃fini marque was a luxury-oriented brand, as opposed to the more mainstream, fun to drive Eunos brand, traditional Mazda, and entry level Autozam. The vehicles sold didn't comply with Japanese government exterior and engine displacement regulations which classed all vehicles sold as ɛ̃fini as exclusive luxury products. The length of the MS-6 was the same as the MS-8 at 4,695 mm (184.8 in). Both shared the V6 2.0 L, while the MS-6 offered the convenience of a hatchback bodystyle, and the MS-8 offered space efficiency of bench seats for both front and rear passengers and the open-air feeling of a hardtop sedan bodystyle.

The ɛ̃fini name and logo are not to be confused with several limited-edition second generation (FC) RX-7s, the "Infini" edition (marked with an infinity sign "∞"), from the late 1980s.

From 1991 until 1997, when the ɛ̃fini dealership was integrated into Mazda locations, Citroën products were sold to Japanese buyers, as well as Mazda's Eunos locations. Currently, there are a few Japanese Mazda dealerships that still maintain the sales channels, but sell Mazda-branded products.[1]

Please go to Wikipedia, if you want any further information

Thanks Wikipedia!

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