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Cooper T86 Maserati

Cooper T86 Maserati Cooper T86 Maserati Cooper T86 Maserati Cooper T86 Maserati Cooper T86 Maserati Cooper T86 Maserati
Click here to save all images    Image credits: Wouter Melissen 

    

Click here to download printer friendly version At the end of the 1950s Cooper had kickstarted a revolution in Formula 1 with their mid-engined racers. They exploited the advantage perfectly by scoring back to back world championships with Jack Brabham in 1959 and 1960. Soon after the competition had caught on, Cooper gradually started to loose ground to the likes of Lotus, BRM and Ferrari. Things did not get any easier in the high tech 1.5 litre regulations in the first half of the 1960s. When they were replaced with new 3 litre regulations for 1966, all teams were forced to start from scratch, giving Cooper the best chance in years.

Sadly most of the momentum was lost with the untimely death of Charles Cooper and the sale of the team to Chipstead. Like all the other independent teams, Cooper's biggest concern was to find a suitable engine for the new season. Both BRM and Climax were busy with elaborate and probably expensive sixteen cylinder engines, which were not a viable option for the small team. Instead they turned to Italy where they found a willing supplier in Maserati. The Italians offered to provide the V12 engine used in the final version of the 250 F, in modified, three litre form.

Derrick White was commissioned to design Cooper's very first monocoque chassis to house the Italian V12 engine. Dubbed the T81, the new 3-litre car was very conventional, perhaps with the exception of the front disc brakes, which installed on the inside of the hub between the wishbones. Giulio Alfieri extensively reworked the almost ten year old engine, which produced a claimed 360 bhp. The Cooper team had always believed in the power of numbers and at various races in 1966, they fielded up to five Maserati powered T81s. Jochen Rindt scored the company's first Grand Prix win since 1962 at the Mexican Grand Prix and Pedro Rodriguez added another one in the 1967 opener in South Africa.

The biggest problem of the 3-litre Coopers was the relatively high weight and in 1967 a lighter T81B was tried, but with little success. Later that season, the unique T86 debuted, which was indeed lighter and slimmer, but its record of four retirements out of four starts was very poor. After two seasons, Maserati already had enough leaving Cooper without an engine for 1968. Fortunately BRM had abandoned their H16 program in favour of a far less complex V12 engine, which they were willing to offer in 'sportscar' trim to Cooper. Three new T86Bs were constructed for the 375 bhp BRM engines.

Weighing in at around 560 kg, the BRM-engined T86B was among the heaviest cars on the 1968 grid. If that was not a big enough disadvantage, their version of the V12 engine was also the least powerful. A fatal crash of their lead driver Ludovico Scarfiotti in a hillclimb Porsche made things where possible even worse for Cooper. Two podium finishes at Jarama and Monaco were the rare highlights of the season. Back home, the lack of success and demand from customers had brought the company in big financial difficulties. Cooper would not return to Formula 1 and all the assets were sold in July 1969.

Featured is the sole T86 constructed late in 1967 for the Maserati engine. The final spec of the Italian V12 included a revised head with three valves per cylinder (two intake and one exhaust valve). Sadly it did not proof to be very reliable. The unique racer is pictured above at the 2007 Goodwood Revival where former Cooper team manager and driver Roy Salvadori was celebrated.

Article by Wouter Melissen, last updated on 11 / 12 / 2007

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General specifications
Country of origin Great Britain
Chassis number F1-2-67
Numbers built 1
Produced in 1967

Engine
Configuration Maserati Tipo 10 60º V 12
Location Mid, longitudinally mounted
Weight 171 kilo / 377 lbs
Construction light alloy block and head
Displacement 2.983 liter / 182 cu in
Bore / Stroke 75.2 mm (3 in) / 56.0 mm (2.2 in)
Compression 10.0:1
Valvetrain 3 valves / cylinder, DOHC
Fuel feed Lucas Fuel injection
Aspiration Naturally Aspirated

Drivetrain
Chassis/body aluminum monocoque
Front suspension double wishbones, coil springs over dampers
Rear suspension upper and lower rocker arsm, twin radius arms, coil springs over dampers
Steering rack-and-pinion
Brakes vented discs, all-round
Gearbox Hewland 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 560 kilo / 1234.6 lbs
Wheelbase / Track (fr/r) 2489 mm (98 in) / 1575 mm (62 in) / 1575 mm (62 in)

Performance figures
Power 390 bhp / 291 KW @ 10000 rpm
BHP/Liter 131 bhp / liter
Power to weight 0.7 bhp / kg

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