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"Whale Tai" what for?

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Old 08-08-2005, 02:14 AM
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Default "Whale Tai" what for?

Quick question. On the back of my Scarab I outdrive; right where the upper and lower unit meet; bolted right above the Alpha drive center tab is what I would call a "whale tail".

I assume that it is to get the boat on plane faster but I don't know? What is it's purpose? Does it hurt my top speed?

I hope I describe this good enough. Any help would be geat; want to know whether to keep it on or take it off.
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Old 08-08-2005, 08:10 AM
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Default Re: "Whale Tai" what for?

If it's an after market "fin" I would get rid of that thing!!! Supposed to help with low-end, but will hurt top end. And that cavatation plate isn't really meant for the extra load anyway.
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Old 08-08-2005, 08:31 AM
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Default Re: "Whale Tai" what for?

Like t500hps said, it's designed to keep the boat on plane at lower speeds.
They will cost you both cruising and top end speeds, usually by a substantial amount.

Yank it off as fast as you can and deny ever having it on there....
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Old 08-08-2005, 02:53 PM
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Default Re: "Whale Tail" what for?

This makes sense for me why it is on there since my boat was a stunt/prop boat. Was wondering why the boat wouldn't do past 50. It's off today!!!

Thanks for all the help.

Tail.......what tail......
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