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rotex

  1. dwakeman

    How does a 3 cylinder Rotex engine seem to outperform a 4 cylinder Yamaha engine?

    So I’ve been wondering, how does a three cylinder Rotex ACE 1630 engine produce 325 HP when the four-cylinder 1.8L SVHO Yamaha engine only produces 250HP? The Yamaha has peak torque of 148 Lb-ft. I was hoping to find torque numbers the Rotex engine, but was not able to. It also seems that the...
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