Silent choice???
02-03-2019, 11:21 AM
#1
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Thread Starter
Silent choice???
How often do you guys actually use your silent choice? I'm looking at a couple of 42 Lightnings to consider buying, one has silent choice and EFI's the other has superchargers no EFI and no silent choice. ( I have heard it doesn't work well with blowers anyway)
Also, on a side note of lesser importance vacuflush or portapotty?
Thanks all!
Shawn
Also, on a side note of lesser importance vacuflush or portapotty?
Thanks all!
Shawn
02-03-2019, 04:39 PM
#2
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Got rid of mine causes to many issues with reversion.
And here we dont have noise laws but you are not suppose to have anything that defeats a muffler. So in a way the silent choose would be illegal, and have to be used all the time. Not that I think they would ever inforce it.
And here we dont have noise laws but you are not suppose to have anything that defeats a muffler. So in a way the silent choose would be illegal, and have to be used all the time. Not that I think they would ever inforce it.
02-04-2019, 08:09 AM
#4
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VIP Member
Had silent choice on previous 525 efi boat, never had an issue but rarely used it because I was worried about reversion on long idle times. Current boat has 600SCIs and silent choice was removed by previous owner due to reversion in starboard engine that has short tails, boat is a full stagger set-up. Personally I would remove it to get full exhaust flow and not worry about reversion. If you have local noise restrictions, remove the silent choice system it's most likely an illegal system anyways and will not get you out of a ticket, then look into a set of tailpipe inserts made for high hp applications like these from GGB Marine https://marineexhaust.ggb.ca/. You can also look into turn downs.
02-04-2019, 01:37 PM
#5
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iTrader: (6)
With the proper diverters silent choice does not increase the risk of reversion. I actually get some peace of mind knowing that while not running, any water that might get past the tip flapper will run down the Y pipe and cannot wash over the hump and into the engine. I only use mine at idle speeds.
02-08-2019, 10:27 AM
#7
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With the proper diverters silent choice does not increase the risk of reversion. I actually get some peace of mind knowing that while not running, any water that might get past the tip flapper will run down the Y pipe and cannot wash over the hump and into the engine. I only use mine at idle speeds.
02-08-2019, 12:45 PM
#8
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iTrader: (1)
...and this guy knows a thing or two about exhaust!
When is the VooDoo Performance Boat Exhaust coming out ?
When is the VooDoo Performance Boat Exhaust coming out ?
Had silent choice on previous 525 efi boat, never had an issue but rarely used it because I was worried about reversion on long idle times. Current boat has 600SCIs and silent choice was removed by previous owner due to reversion in starboard engine that has short tails, boat is a full stagger set-up. Personally I would remove it to get full exhaust flow and not worry about reversion. If you have local noise restrictions, remove the silent choice system it's most likely an illegal system anyways and will not get you out of a ticket, then look into a set of tailpipe inserts made for high hp applications like these from GGB Marine https://marineexhaust.ggb.ca/. You can also look into turn downs.
02-08-2019, 04:06 PM
#10
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iTrader: (6)
Wrong! Mercury 525 EFI service manual says "A boat with a Hi-Performance engine(s) that offers through the prop or through the transom options (i.e., Silent Choice), must not be operated above 2500 RPM without the exhaust going through the transom or severe engine damage may result." I use mine only at idle speed.
