Purposely made the title short because this thing is a 100HP+ WHOPPER. H/T to Steve Buckner for posting this somewhere on FB
From Panthera Motorsport’s website …
Volume/Bore/Stroke: 548cc / 94mm / 79 mm
Power : 92 - 102 HP *
Torque: 65 - 72 lb-ft *
Weight: 72lb / 32.7 kg
Transmission: 6 speeds
Exhaust control: Piston power valve
Intake system: Carbon fiber reed valve
*Variance in pipe selection and dome compression configurations.
Latest engine of the Panthera family, the PM07-18 has been designed as an exact bolt on product for the TRX450R platform (all years). It uses the same mounting points and requires no modifications of the chassis.
The electrical connections are identical and the engine uses the original wiring harness. A new CDI controller is supplied and connects directly into the original harness. For other applications, full wiring harness can be supplied upon request.
The PM07 is the result of years of experience in all world of racing combined.
From motocross, to karting, to full size formula cars, our engineers have come up with various design of optimal specifications to create a solid and reliable engine, while giving life to the most powerful production single cylinder in history.
Everything inside the PM07 is engineered to withstand higher power than its initial production configuration produces.
One thing that’s been a problem for these bigger 450/500cc engines in karting has been the lack of a balance shaft* and this engine has one.
*Probable death is another reason I guess.
This thing has to be ridiculous!