Thread: "True HP"
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Old 03-21-2013, 09:24 AM
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east tx skier east tx skier is offline
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Join Date: Jul 2004
Boat: 1998 Ski Nautique
Location: End of my rope.
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Quote:
Originally Posted by Theclarks1111 View Post
That's interesting stuff, I didn't think they would inflate the ratings by as much as 40 or 50 HP
Lots of things can affect a dyno. All I know is that this number was without the exhaust tips. No other info specific to the testing other than that. Take it for what it's worth. If you or anyone else has a lot of in depth knowledge of how these things work and how numbers can change based on tiny condition changes, you may be able to make yourself feel more or less comfortable with that figure.

I have seen dyno figures from older PCM GT-40 figures come out around 311 or 312. They are rated at 310.

A lot of this drop off might be due to the mandatory cats put on the boats in around 06 or so. But that's just speculation.
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