MASERATI GRANTURISMO MC TROFEO/GT4 SERVICE MANUAL
9
Ver 1.0 2/16
6.
Engine
6.1.
Engine specification
Engine Spec:
o Engine code: M145
o Engine type: V8 90°
o Displacement: 4692 cc
o 4 valves per cylinder.
o Wet sump / One Volumetric oil pump.
o 1 throttle, drive by wire control.
o 8 BOSCH injectors, 8 coils, multi-phased injection & ignition.
Otpimum upshift rpm :
o Gear shift at 7200 RPM in all gears.
o 7000 rpm, optimum rpm in VI gear continuously.
o Rev limiter at 7600 RPM in all gears.
o Gear shifting recommended at the first RED light.
Cooling system:
o Demineralised water (with pH >6.0) +20% glycol – quantity approx. 12.5 liters from
a completely empty car and engine. Max level mark on water tank.
o Thermostat @ 86°C available for cold or night events.
Lubricating system:
o Oil type: see Table in 4 Fluids & lubricants.
o Minimum oil level in engine sump: 10 liters
o Maximum oil level in engine sump: 11.5 liters
o Total oil capacity from empty engine: 14.2 liters to have 11.5 liters in engine wet
sump.
o For further details see below the oil level check procedure.
Exhaust system:
o One collector of 4 into 1, double exhaust manifolds - separate tubes - rigid assembly
– rubber mountings on chassis.
Temperatures (T1 = top speed straight line ) given for step 1 engine :
o Max temp. cooling fluid: 96°C in T1, 98°C max during a lap. Optimum 88 ÷ 91°C.