Mercury 600sci with Mufflers?
05-31-2011, 10:38 AM
#11
Registered
Mark,
Do you lose any rpm's up top when you run the mufflers ?
I have transom mount CMI's, worked great for noise. I pulled the insides out and boat seems to pull harder and overall feel stronger. Definitely would hit the rev limiters quicker without the baffles in (before my gear change).
Now have 6" 'tips', having 6" turndowns built to bolt on for non-poker run weekends.
Do you lose any rpm's up top when you run the mufflers ?
I have transom mount CMI's, worked great for noise. I pulled the insides out and boat seems to pull harder and overall feel stronger. Definitely would hit the rev limiters quicker without the baffles in (before my gear change).
Now have 6" 'tips', having 6" turndowns built to bolt on for non-poker run weekends.
05-31-2011, 04:32 PM
#12
Registered
Thread Starter
Join Date: May 2010
Location: Oakville,ON & St. Pete's FL
Posts: 97
Likes: 0
Received 0 Likes
on
0 Posts
Shallow Minded: Which type of GGB mufflers do you have? Inline? If yes, how long?
05-31-2011, 08:43 PM
#13
Registered
Thread Starter
Join Date: May 2010
Location: Oakville,ON & St. Pete's FL
Posts: 97
Likes: 0
Received 0 Likes
on
0 Posts
Silent Choice
Dean, you have just described my current set up. Canadian law specifically demands mufflers. Strangely, no specific db is required. Since running the exhaust through the propeller hub is ultimately the quietest. I'm currently thinking of switch between through the propeller hub and mufflers. I have to use inlines as you cannot clamp on to the end of my pipes. It would also ruin the appearance of my boat. So far I have learned about a couple of muffler manufacturers I can look into. Now I have to decide who to use and what decibel level to adhere to. Since the boat lives half the year in Florida I'm thinking 88. Sure will miss the sound of wide open pipes.
06-01-2011, 05:40 AM
#15
Charter Member
Charter Member
Dean, you have just described my current set up. Canadian law specifically demands mufflers. Strangely, no specific db is required. Since running the exhaust through the propeller hub is ultimately the quietest. I'm currently thinking of switch between through the propeller hub and mufflers. I have to use inlines as you cannot clamp on to the end of my pipes. It would also ruin the appearance of my boat. So far I have learned about a couple of muffler manufacturers I can look into. Now I have to decide who to use and what decibel level to adhere to. Since the boat lives half the year in Florida I'm thinking 88. Sure will miss the sound of wide open pipes.
So at the end of the day, you are going to have both Silent Choice and mufflers? BTW, has the silent choice given you any trouble when on, as far as idling for 30-45 minutes?
Thanks,
Dean
Also, Sweet boat!
__________________
Everything is for sale @ a certain $$
Everything is for sale @ a certain $$
06-01-2011, 05:54 AM
#16
Registered
Is this the style of exhaust you have?
06-02-2011, 06:00 AM
#19
Charter Member
Charter Member
Dean,
Sorry I forgot to respond to your question. I do have problems with my silent choice. One side seems to constantly need to be adjusted. I will flip the switch, the actuators will engage and push the flaps over to divert the exhaust down through the prop hub, then one side will switch back to the original position putting the exhaust back through the pipe on that side.
Sorry I forgot to respond to your question. I do have problems with my silent choice. One side seems to constantly need to be adjusted. I will flip the switch, the actuators will engage and push the flaps over to divert the exhaust down through the prop hub, then one side will switch back to the original position putting the exhaust back through the pipe on that side.
Sounds like the 1 actuator is either loosing power, or it's being "uncommanded" back, short in the harness somewhere maybe....
But are far as the engine itself, it idles fine, doesn't load up or anything.....? We live on a "USFWS Manatee Refuge" waterway, (Sykes Creek) and our idle times are 20 minutes south, 40 minutes north from our dock!
BTW, what engine oil do you use?
Thanks,
Dean
__________________
Everything is for sale @ a certain $$
Everything is for sale @ a certain $$
