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Silent chioce...

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Old 03-18-2002, 09:37 AM
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Question Silent chioce...

I just bought a 35 Cafe Racer that has Merc silent choice. I've never owned a boat with this on it and have heard about valve problems resulting from water "backwashing" into the manifolds. What is the "rule of thumb" regarding using this system?

My cig has 454, 465hp on bravos.

Thanks!

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Old 03-18-2002, 09:59 AM
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I believe Bravo's have a flapper that closes when you kill the motor, that is as long as it hasn't melted from overheating.
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Old 03-18-2002, 11:27 AM
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So silent choice is not so good? Just had it installed during the offseason!
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Old 03-18-2002, 12:10 PM
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It depends who's system your using GameOver. If there Corsa's Silent choice your all set. They use all S.Steel flapers, so they don't melt.
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Old 03-18-2002, 02:20 PM
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people have problems with silent choice when the cam they are running is to large...with a stock merc setup you should be fine...
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Old 03-18-2002, 03:41 PM
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My last boat had silent choice. No problems on a stock motor.
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Old 03-18-2002, 05:46 PM
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I have silent choice, blower, big cam, no problems!
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Old 03-18-2002, 05:49 PM
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Whew, you guys started to scare me for a moment.

Lightning Header w/silent choice, hopefully a good buy
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Old 03-18-2002, 06:16 PM
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Default RULE OF THUMB

keep them open over 2500 rpm,NEVER shut them WHILE decellerating.
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