3/16/11
Ferrari 575M Maranello |
The 575M Maranello’s 12-cylinder engine retained its predecessor’s 65 degree vee angle, twin overhead cams, four valves per cylinder, light alloy engine block, heads and oil tank, and dry sump lubrication with two scavenge and one sender pump, double filter, separate tank and individual radiators. The engineers’ goal with the 575M Maranello’s V12 was simply to increase both power curve and torque. The result is that it had a new maximum power output of 515 hp (379 kW) at 7250 rpm and maximum torque of 60 kgm at 5250 rpm (588.6 Nm). Mid-range torque also increased by 1.5 kgm between 1000 and 4000 rpm compared to the 550 Maranello’s engine. These improvements were achieved by a plethora of modifications to the 12-cylinder, most notably: increased capacity, higher compression ratio, new intake fluid-dynamics, and overall improvement of engine efficiency and management.
The 575M Maranello also boasted optimal weight distribution, with a 50-50 split between the axles with the driver onboard. This came courtesy of its transaxle design which saw the rear-mounted gearbox in unit with the limited-slip differential. The 575M Maranello’s transmission sported the electro-hydraulic F1 control unit mounted at the rear of the car. This minimised response time and guaranteed optimal operating temperatures. The F1 gearchange on the 575M Maranello was optimised to be used via the manual levers mounted on the back of the steering wheel, as direct driver (rather than automatic) control guaranteed the most responsive driving in press-on situations. The driver had two main manaual gear-shifting strategies available to him via the console-mounted controls: Sport which offered faster sportier shifting and one aimed at a more laidback driving style, both of which affected damper control too. The F1-style gearbox used on the 575M Maranello cut gear-shifting times and offered damper control during gear changes. Ferrari designed the electro-hydraulic gearbox to be mainly manually actuated using the steering wheel-mounted paddles but two complimentary modes were also made available: Automatic and Low Grip.
Ferrari 575M Maranello Interior |
EngineType: front, longitudinal 65° V12
Bore/stroke: 89 x 77 mm
Unitary displacement: 479.03 cc
Total displacement: 5748.36 cc
Compression ratio: 11 : 1
Maximum power: 379 kW (515 hp) at 7250 rpm
Power per litre: 90 hp/l
Maximum torque: 588 Nm (60 kgm) at 5250 rpm
Valve actuation: twin overhead camshafts per bank, four valves per cylinder
Fuel feed: Bosch Motronic injection
Ignition: Bosch Motronic electronic static, single spark plug per cylinder
Lubrication: dry sump
Clutch: single-plate
Chassis
Frame: tubular steel
Front suspension: independent, unequal-length wishbones, coil springs, telescopic shock absorbers with electronic adaptive damping, anti-roll bar
Rear suspension: independent, unequal-length wishbones, coil springs, telescopic shock absorbers with electronic adaptive damping, anti-roll bar
Brakes: discs
Transmission: manual or electro-hydraulic F1 6-speed + reverse
Steering: rack-and-pinion
Fuel tank: capacity 105 litres
Front tyres: 255/40 ZR 18
Rear tyres: 295/35 ZR 18
Bodywork
Type: two-seater berlinetta
Length: 4550 mm
Width: 1935 mm
Height: 1277 mm
Wheelbase: 2500 mm
Front track: 1632 mm
Rear track: 1586 mm
Weight: 1730 kg (kerb)
Performance
Top speed: 325 km/h
Acceleration 0-100 km/h: 4.25 sec 4.20 sec F1 gearbox
0-400 m: 12.30 sec 12.25 sec F1 gearbox
0-1000 m: 22.00 sec 21.90 sec F1 gearbox
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