The new QC4v 1750 - Mercury Racing’s most powerful engine
by Mercury Marine on 7 Mar
Producing an astounding 1,750 horsepower, it’s the most powerful engine ever produced by Mercury Racing.
1750 Competition Top-Down. Mercury Marine
The new QC4v 1750 Competition sterndrive – released at the Miami international Boat Show – is a racer’s dream, offering massive torque for unmatched acceleration and top-end speeds.
Designed, developed and manufactured in house, the 9.0 liter engine features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft (QC4v) valve train.
This proven valve train greatly enhances engine performance and durability, producing an astounding 1,750 horsepower at 6800 rpm.
The proprietary V8 cylinder block is further packed with Mercury Racing designed and specified hardware.
New turbochargers provide greater airflow for enhanced power and torque which equates to unparalleled acceleration, critical for powering out of corners in highly competitive race situations.
Digital Throttle and Shift (DTS) provides luxury-car-like drivability. The DTS system also features one-touch Smart Start and automatic throttle synchronization. Zero Effort Digital controls provide an intuitive control experience – precisely signaling driver intent to the potent powerhouse.
The 1750 is close-cooled for more uniform temperature distribution with an all-new race-proven heat exchanger. Engine oil and glycol in the closed cooling system are routed around the engine via a series of tubes which are encapsulated in a casting filled with sea/river water which serves as a coolant. The heat exchanger provides for a higher sea water flow rate for enhanced cooling. Mercury Racing’s proprietary pulse-separated exhaust tuning keeps turbos “spooled up,” virtually eliminating throttle lag and low-end torque deficit.
The Propulsion Control Module (PCM), featuring Mercury Racing developed software, is the brain behind the brawn. A boost control valve, electronically activated by the PCM microprocessor, continuously adjusts the amount of turbocharger boost needed to provide consistent horsepower.
The PCM also enables individual cylinder control. This ability to optimise fuel and spark timing independently for each cylinder enhances engine running quality, performance, fuel economy and durability. The use of eight independent ignition coils, one per cylinder, helps eliminate spark plug fouling.
Finally, the PCM drives Mercury Racing’s exclusive Engine Guardian System which monitors engine functions to forewarn of possible problems that could lead to engine damage.
This “smart” technology not only detects and alerts the boater of a problem; it also processes the data and reduces power to a maximum, safe level that allows the boater to continue operation with lower risk of engine damage.
The drive and hydraulic transmission are designed to handle the 1750’s high torque and power levels. At the same time, the transmission, designed specifically for DTS, delivers smooth and consistent shifts.
The massive torque and power output of the new 1750 is transferred to the water via Mercury Racing’s Pro Finish 5 and 6-blade CNC sterndrive propellers.
The 1750 comes equipped with a 95 amp charging system – providing an ample supply of power for an array of marine electronics.
Contact your Mercury Racing Dealer for availability.
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