The very same Outerlimits SV43 holds the V-bottom speed record at 180.47 mph, set in 2014 at a special event on the Pamlico River near Washington, North Carolina. That boat was powered by a pair of Mercury Racing 1650 engines. For the event in Manhattan, the boat was set up to showcase the Merc 1350 engines, which have the same 9-liter (549 CID) V-8 displacement and four-valve quad-cam heads. Boosted by twin turbochargers, this engine is rated at 1,350 horsepower on 91-octane pump gas, which is almost inconceivable. Combined with computer-managed turbocharger control, Mercury Racing's proprietary pulse-separated exhaust keeps the turbos "spooled up," virtually eliminates throttle lag and low-end torque deficit, and delivers the stout torque delivery and quick throttle response you want to carry the bow in challenging seas. An all-new, race-proven heat exchanger routes engine oil and glycol for the closed-cooling system around the engine via a series of tubes encapsulated in a casting filled with seawater, which serves as a coolant. According to Mercury, the new heat exchanger provides a flow rate of 20 percent more seawater for enhanced cooling, when compared to the previous exchanger.