Originally Posted by MuskokaJ
From my understanding the actual horsepower is the same. The issue was that Indmar was using a different rating methodology than Ilmor, which caused some customer questions/grief/etc., and ultimately Indmar/Mastercraft had to state the horsepower numbers using the same rating methodology. That is what I heard through a dealer, and it would seem to make sense.
My understanding is that the MCX, at least for the last four years, has actually been around 311 hp before the exhaust tips are added to the equation. Also, I don't think Indmar states HP. It leaves that to the manufacturers.
Just a guy on the street. I could be wrong. But I'm not guessing.
Previous: 1993 Prostar 205
Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.
Be kind. Have fun.