Well the "stock" MC28 they are using as a comparison obviously wasn't stock! Either that, or as you say, there is a real problem somewhere, but 48hp out of an MC28 with nothing more than a set of pipes is nothing more than you can expect.
A 58hp MC28 would indicate quite a lot of modification. Fontyyy's makes more than that, but he's using an HRC card, open airbox, race pipes, etc.
Stock NSR's (in good condition) tend to make bang on what Honda say on a good dyno.
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Andy.
NSR-WORLD.COM
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