McLaren M4B
From Wikipedia, the free encyclopedia
| Category | Formula One | ||||||||
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| Constructor | Lambretta-Trojan, Bruce McLaren Motor Racing | ||||||||
| Designer(s) | Robin Herd | ||||||||
| Technical Specifications | |||||||||
| Chassis | Aluminium monocoque | ||||||||
| Suspension (front) | Single top link with radius arms and lower wishbones, outboard coil spring/shock units and anti-roll bar | ||||||||
| Suspension (rear) | Twin radius arms, reversed lower wishbones and single top links with outboard coil spring/shock units | ||||||||
| Engine | BRM 1998 cc V8 naturally aspirated Mid-engined, longitudinally mounted | ||||||||
| Transmission | 5-speed manual gearbox | ||||||||
| Fuel | Shell | ||||||||
| Tyres | Goodyear | ||||||||
| Competition History | |||||||||
| Notable entrants | Bruce McLaren Motor Racing | ||||||||
| Notable drivers | Bruce McLaren | ||||||||
| Debut | 1967 Race of Champions (non-championship), 1967 Monaco Grand Prix |
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| Constructors' Championships | 0 (Best result 10th, 1967) | ||||||||
| Drivers' Championships | 0 | ||||||||
The McLaren M4B/1 was a Formula 1 racing car constructed by Trojan for Bruce McLaren Motor Racing and raced five times by kiwi Bruce McLaren at the start of 1967.
The M4B was based on the M4 Formula 2 car as a stopgap between the M2B and the M5A. Additional fuel tanks were added either side of the cockpit to allow the car to run a full Grand Prix distance, and the rear end of the car was cut away to accommodate a 2.0 litre BRM type 56-2 V8, an enlarged and updated version of the engine with which Graham Hill had won the World Championship in 1962.
The car made its debut in the 1967 Race of Champions at Brands Hatch, showing promise with fourth and sixth places in the heats before a missed gear by Mclaren in the final race put him out with engine failure. In the Spring Trophy at Oulton Park McLaren managed fifth place in both heats and the race, and came fifth again in the International Trophy at Silverstone.
The M4B's Grand Prix debut came at Monaco, where its short wheelbase made it surprisingly competitive. McLaren ran as high as third before a pit stop to replace a flat battery dropped him back to fourth at the finish - the first points scored by a McLaren chassis. In the next Grand Prix in Holland McLaren crashed the M4B on the first lap, but after the car had later been repaired it caught fire during a test at Goodwood and was written off.
[edit] References
http://www.oldracingcars.com/car.asp?CarID=M4B/1
http://www.mathewscollection.com/former/Former_McLaren_M4B.htm
http://www.ddavid.com/formula1/brmp56.htm
http://www.grandprix.com/gpe/rr152.html
http://www.bruce-mclaren.com/the-cars/f2/m4b
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