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exhaust for bigger cams

Old 04-05-2010 | 11:53 AM
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Default exhaust for bigger cams

Went to the crane 741 cams last year when i did my top ends over,, now found indication of reversion with my gill exhaust system. What is a good couple of choices to replace it witout reversion issues.
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Old 04-05-2010 | 12:24 PM
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make it dry then you can use any cam .i beleave there is a guy selling dry pipes for your exhaust
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Old 04-05-2010 | 01:02 PM
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Originally Posted by bajabob
make it dry then you can use any cam .i beleave there is a guy selling dry pipes for your exhaust
Dry will be alot louder, and would my tips get hot, as my 32 active thunder has pipes above swim platform.
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Old 04-05-2010 | 01:10 PM
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if you go dry you cant run tips, you have to extend your tails all the way through the transom.......the problem with running dry tails is that you cant run tips with a rubber hose, so they have to hit your current holes PERFECT or its time to get your saw out
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Old 04-05-2010 | 02:16 PM
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how hot will the ends of the tails over my swim platform get.
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Old 04-05-2010 | 03:06 PM
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the tails wont be hot, i ran dry tails on my old boat and theyre the same temp as the wet tails im running now. It the actual exhaust gas that is still hot because no water is ever introduced to cool it, that is what would burn a rubber boot.
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Old 04-05-2010 | 08:03 PM
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ya mine are the same the water goes to the end of the pipe and i have the rubber flappers on the end it works for me
the water cool the pipe down i had to do this because of the cam i am runnig
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Old 04-06-2010 | 08:51 AM
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Is it alot louder
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Old 04-06-2010 | 08:57 AM
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yeah, but i never got bothered for it and i went passed many police boats........
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Old 04-06-2010 | 04:47 PM
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My guess is that completely dry tails would trash your swim platform. You really shouldn't need dry tails with a 741 cam. The stock cam is probably more prone to reversion than the 741.

Where do you have the idle rpm set at nuetral and in what rpm while in gear. A 100 rpm bump in the idle rpm could do wonders if you actually have a little reversion.
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