Lost in the endless speculation about what Mercury Racing will do next with its 4.6-liter V-8 outboard engine platform is that the company’s new 300R offering is starting to find its way onto the transoms of sport catamarans. Case in point is the MTI 340X sport cat in the attached photo, the Wentzville, Mo., company’s first build with the new naturally aspirated V-8s.

“It went 110 mph in our first propeller test on the rev limiters at 6,400 rpm,” said Randy Scism, the owner and founder of MTI. “We have new props coming. Great acceleration up to the bump box—it’s amazing for 300 hp.”

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