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| Liberators and Noise! https://www.smwebhead.com/phpBB3/viewtopic.php?f=13&t=3968 |
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| Author: | zephyrracer [ Sat Jul 18, 2009 12:39 pm ] |
| Post subject: | Re: Liberators and Noise! |
Hi Rick do you have a phone # or web site that looks like a good idea. Gregg ht32bsx115 wrote: birchfir wrote: Good idea. I reduced the idle down and it seemed to lower the sound level as well. Unfortunately, I don't have access to a sound meter to know if I am in the ball park. Well, considering what a ticket costs, you might drop on over to RS and get yourself one...  They're only $49 and might save you a little money in the future. |
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| Author: | ht32bsx115 [ Sat Jul 18, 2009 6:35 pm ] |
| Post subject: | Re: Liberators and Noise! |
zephyrracer wrote: Hi Rick do you have a phone # or web site that looks like a good idea. Gregg [ Now I thought everybody knew what "RS" meant!!  http://www.radioshack.com/home/index.jsp |
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| Author: | zephyrracer [ Sat Jul 18, 2009 9:48 pm ] |
| Post subject: | Re: Liberators and Noise! |
ht32bsx115 wrote: zephyrracer wrote: Hi Rick do you have a phone # or web site that looks like a good idea. Gregg [ Now I thought everybody knew what "RS" meant!! http://www.radioshack.com/home/index.jsp Rick thats funny  and even funnier ive never been in one before  will look tomorow. Thanks Gregg
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| Author: | birchfir [ Sat Jul 18, 2009 10:20 pm ] |
| Post subject: | Re: Liberators and Noise! |
Hey Guys, Not a bad little meter. It does time averages with max and min readings during any set time period. Multiple ranges. Works real well. Thanks for the suggestion! |
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| Author: | ht32bsx115 [ Sat Jul 18, 2009 11:29 pm ] |
| Post subject: | Re: Liberators and Noise! |
I cannot speak to the accuracy of the thing but I'm not sure the cops can either. The best you can do is try to verify that the Radio Shack meter reads about the "same" as the "cop" meter. You will have to be at the same bearing and distance (as the "cop meter") from the boat too. |
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| Author: | zephyrracer [ Sun Jul 19, 2009 2:19 pm ] |
| Post subject: | Re: Liberators and Noise! |
Rick I stoped by RS and picked one up, its raining out so I can't test it out right now but tomorow looks good, I also have the reading taken by the local sheriff and will see if it comes close when I take the boat out. I can even test my Harley out imsure its noisey too.  Until we test Gregg out |
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| Author: | birchfir [ Sun Jul 19, 2009 4:55 pm ] |
| Post subject: | Re: Liberators and Noise! |
Zephyrracer, I will be curious to see what your readings are. I noticed that while at the dock, the readings are higher. In order to accurately duplicate what the local constables do, you may have to perform this out on the lake where you will not have as much "structure" channeling the sound. |
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| Author: | ht32bsx115 [ Sun Jul 19, 2009 5:56 pm ] |
| Post subject: | Re: Liberators and Noise! |
Quote: I can even test my Harley out imsure its noisey too. hey....that's not noise! 
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| Author: | zephyrracer [ Sun Jul 19, 2009 6:53 pm ] |
| Post subject: | Re: Liberators and Noise! |
birchfir I thought about that and was quirous if the boats readings would be higher before they warm up choke ect, so I will try it at the dock cold at the dock warm and out in the open water, almost sounded like the cat in the hat for a minute. Will keep ya posted Rick you got that right nothing like the sound of a Harley mine is bored out peppier cams and rhineharts sounds great. Gregg
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| Author: | jvthundercat [ Thu Jul 23, 2009 10:19 am ] |
| Post subject: | Re: Liberators and Noise! |
I ran across these from Hardin Marine. I have found them as cheap as 60.00 online, Hardin has them for $79.00 and that is per pair. Yes Per PAIR. So the 50 you paid for that meter could have almost paid for the mufflers on one engine. http://www.hardin-marine.com/detail~ID~318.aspx Of course you would have to buy two pairs, but $120.00 is cheap comparied to money wasted on tickets, and etc. I have got Augers in my tubes on my 261 with the BBF. I am putting the Engines together right now, so in a couple more weeks I will find out how this beast runs........................ |
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| Author: | zephyrracer [ Thu Jul 23, 2009 5:14 pm ] |
| Post subject: | Re: Liberators and Noise! |
jvthundercat wrote: I ran across these from Hardin Marine. I have found them as cheap as 60.00 online, Hardin has them for $79.00 and that is per pair. Yes Per PAIR. So the 50 you paid for that meter could have almost paid for the mufflers on one engine. http://www.hardin-marine.com/detail~ID~318.aspx Of course you would have to buy two pairs, but $120.00 is cheap comparied to money wasted on tickets, and etc. I have got Augers in my tubes on my 261 with the BBF. I am putting the Engines together right now, so in a couple more weeks I will find out how this beast runs........................ Don't waste your time I put 4 in mine and the db reading was 93.7 down from 96.8 still to lowd , im going to get some pvc pipe and bends and put them about 4 " under the water to make the quiet. Gregg
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| Author: | birchfir [ Thu Jul 23, 2009 5:53 pm ] |
| Post subject: | Re: Liberators and Noise! |
I ordered insert mufflers from Eddie Marine for $61/pair. I only need to get down 2-4 db in order to be legal. These are supposed to reduce by 6-8 db. I'll let you know what I end up at. |
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| Author: | birchfir [ Sat Aug 29, 2009 12:08 pm ] |
| Post subject: | Re: Liberators and Noise! |
Sorry for the delay in getting back to everyone, but the inline mufflers from Eddie Marine seemed to do the trick! I had to re-pipe from the riser to the exhaust pip to fit them just in front of the transom exhaust pipe but once I got them in, it dropped the sound down by around 4-5 db. I had Johnny Law re-do the test and I peaked a couple of times at the max (86db) but didn't exceed. Again, the mufflers were $61/pair at Eddie Marine. Man, I wouldn't want to be a boat mechanic for anything. It's hard enough getting to areas on top of the engines, let alone trying to get to anything below. There is still a rogue screwdriver down there somewhere! Let me know if you have any questions. Even the neighbors could tell a little difference in noise. Didn't loose any rumble, must just be at a lower pitch. |
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| Author: | 230 Mike [ Mon Aug 31, 2009 10:05 pm ] |
| Post subject: | Re: Liberators and Noise! |
ht32bsx115 wrote: Well, considering what a ticket costs, you might drop on over to RS and get yourself one... I've had one of those for several years, mostly to check noise levels in my woodworking shop. Great little tool to have. |
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