No, I ran it in a Zipp Kits Thunder Boat, the Miss Lapeer you see in the corner. It ran 50-55 mph all day long. The problem was, that IMPBA dissallowed all engines except Zenoah in the Thunderboats after I had already set up my boat! (I won't tell you how dumb a rule I thought that was, but you can probably guess). So I put the boat on the shelf, where it has been for about 4 years.