Truckmounts with Car mufflers?
- Thread starter Mikey P
- Start date
Mikey P
Administrator
Well shit a 3 stage Lamb Vac is a lot cheaper then a positive displacement blower too..
Mikey P
Administrator
Chad use to work for freeflow in case some of you didn't know that.
Apparently some of the broke dick rubbed off on him
Apparently some of the broke dick rubbed off on him
Duane Oxley
Moon Unit
Personally, after having built a few with 45's and mufflers, I won't do it again. They' re too loud and a muffler that wouldn't be, is too big to fit into a frame easily.
The fallacy seems to be that silencers last longer. Not necessarily. The outer shell of a silencer is powder- coated, typically, and thicker, so it doesn't reflect the inner condition as well as a thin- skinned, bare muffler.
The thing is, that if a system is built with them, they should be installed in a manner that's easy to replace... but then, so should silencers, in my opinion.
For 33's they do well, actually and 36's, do acceptably well with them. That's the "dividing line", though. Silencers are typically quieter, especially with the larger blowers. So, on "non- entry- level" systems, I build with silencers.
In other words, Nemesis, Accelerator, Dominator systems, etc., have silencers.
The fallacy seems to be that silencers last longer. Not necessarily. The outer shell of a silencer is powder- coated, typically, and thicker, so it doesn't reflect the inner condition as well as a thin- skinned, bare muffler.
The thing is, that if a system is built with them, they should be installed in a manner that's easy to replace... but then, so should silencers, in my opinion.
For 33's they do well, actually and 36's, do acceptably well with them. That's the "dividing line", though. Silencers are typically quieter, especially with the larger blowers. So, on "non- entry- level" systems, I build with silencers.
In other words, Nemesis, Accelerator, Dominator systems, etc., have silencers.
G
Guest
Guest
My EZ has a silencer.
This was not meant as a 'jab'.
This was not meant as a 'jab'.
Dolly Llama
Number 5
Chads said:
welp, YOU might like a loud machine, but "I" don't
I went thru great pains to quiet down my Powermatic by routing blower and engine exhaust thru the floor and into a second silencer.
'Cept the second "silencer" ain't.
i did like all the "better" back yard mechanicx and bought a hi-flow muffler from Summit Racing
..L.T.A.
Lee Stockwell
FOJL
We have full 3" npt Stoddard silencers on the two EZ's we bought from Nick in 2001. I know when it's unscrewed the 4007 sounds like an air-raid siren. I found out a few weeks after 9-11 while cleaning an international dorm at Murray State. I ran like heck the 200+ feet back to the truck to figure out what happened.
They were better silencers than the "factory" Prochem 405 units.
They were better silencers than the "factory" Prochem 405 units.
Mikey P
Administrator
Chad
Run a FMI Votex for a year and then get back to me about noise tolerance.
Run a FMI Votex for a year and then get back to me about noise tolerance.
Jay D
Member
Sorry Mike, but that was a 4 year old stoddard silencer(D33)and their was no load on the machine at 3700 rpms. Yes it was a little loud when I started it. usually I adjust it to about 3300rpms under load then its not as loud. Car mufflers work fine for smaller blowers and they take up less space on the frame. My stoddard probably needs replacing after 4 years because they do rust out at some point. Someone told me The one I have is designed to run at 3200rpms or less for sound deadening, but I usually run it at full throttle for max heat and vacuum. If I ran it at 3300rpms with no load and 3100rpms with load it would be quieter. Ptos usually are alot quieter. :roll:
bob vawter
Grassy Knoller
Mikey..Two words.......
F L O W M A S T E R Stainless Steel 3"
ok three!
F L O W M A S T E R Stainless Steel 3"
ok three!
The Cleaning Artist
Member
- Joined
- Oct 7, 2006
- Messages
- 475
http://www.pickupspecialties.com/Aero_Turbine/aero_turbinexl_series_resonated_mufflers.htm
3" to 5" all stainless
3" to 5" all stainless
Farenheit251
Member
- Joined
- Oct 9, 2006
- Messages
- 732
I do alot of night work with my 2545 w/ a Tuthill. It had a car muffler to start. Ive tried a homemade silencer,a cowl silencer and a stoddard. Currently I have the Cowl going into a stoddard. Nothing works. That Tuthill is loud and I don't think it all comes from the exhaust.
Sutorbilt website claims there blowers are something like 40% quieter than the competition which must be Tuthill. Tuthill also makes quieter blowers for a price.
Sutorbilt website claims there blowers are something like 40% quieter than the competition which must be Tuthill. Tuthill also makes quieter blowers for a price.
Bob Savage
Member
I use a Stoddard silencer with sound attenuation with my slide-in's over-driven #45 blower.
To make sure the airflow is not restricted when leaving the blower, I purposely "over-sized" the silencer to a full 4" inlet and outlet, as the #45 has a 2-1/2" discharge port.
The Onan has it's own separate muffler mounted under the van, and discharges exhaust in front of the driver's side wheel well.
To make sure the airflow is not restricted when leaving the blower, I purposely "over-sized" the silencer to a full 4" inlet and outlet, as the #45 has a 2-1/2" discharge port.
The Onan has it's own separate muffler mounted under the van, and discharges exhaust in front of the driver's side wheel well.
Mikey P
Administrator
Holey Cow Jay...
Something ain't right in Flowermound then.
Something ain't right in Flowermound then.
bob vawter
Grassy Knoller
For all yous TM GOOru builders...i've found that it takes TWO expansion chambers to quiet a sine wave (sound) down.......ONE at the machine and then ANOTHER one under the truck.......doofusees all....!
Jay D
Member
Mike, I'm not sure what you meant but I probably need to replace the stoddard. It is on the list of things to do after I just put the new engine, pump and heat exchanger on the machine. I might do like Bob Savage(and Bob V) and oversize the silencer and run a secondary muffler under the truck. I don't know yet what I will do.
G
Guest
Guest
Mike , here is the bottom line. Mufflers work so do silencers. They are both loud. You can take a decibels meter and use it. They both will produce 100 + decibels.
There are ways to quite down machines. I build machines with options.
The one I took to minneiapolis had silencer. Like any car mfg . I do options. I can get the machine down to 60 decibels nobody wants to pay extra for it.
Tuthill blowers have a higher pitch to it. Brian what you need to do is work on noise absorbtion.
However I will says this again. MY EZ produces more proffits than mikes vortex. alyear every year.
Bottom line is you can purchase 2 EZ 3047's for 16900.00 cant beat that deal. If they want silencers we will be happy to put them on too.
The heat on the machine is way hotter than 200/210 more like aerotech heat.
So you can ridicule me all you want mike. I am still selling machine nomatter how hard you and greenie try to stop my sales. My machines have more heat and vaccum than most mfg .
O darn my phone is ringing . gotta go clean carpet with my moneymaker taa taa ole chap.
There are ways to quite down machines. I build machines with options.
The one I took to minneiapolis had silencer. Like any car mfg . I do options. I can get the machine down to 60 decibels nobody wants to pay extra for it.
Tuthill blowers have a higher pitch to it. Brian what you need to do is work on noise absorbtion.
However I will says this again. MY EZ produces more proffits than mikes vortex. alyear every year.
Bottom line is you can purchase 2 EZ 3047's for 16900.00 cant beat that deal. If they want silencers we will be happy to put them on too.
The heat on the machine is way hotter than 200/210 more like aerotech heat.
So you can ridicule me all you want mike. I am still selling machine nomatter how hard you and greenie try to stop my sales. My machines have more heat and vaccum than most mfg .
O darn my phone is ringing . gotta go clean carpet with my moneymaker taa taa ole chap.
bob vawter
Grassy Knoller
Does anyone here even KNOW the dynamics of a sine wave.....one expansion chamber quiets the top of the wave and the OTHER quiets the bottom of it.......am I the ONLY SMART one here?
Next thing...i'll teach ya all how ta plumb a wand properly.....cuzin' yous all wrong.......at that too!
Next thing...i'll teach ya all how ta plumb a wand properly.....cuzin' yous all wrong.......at that too!
Fon Johnson
Member
- Joined
- Oct 15, 2006
- Messages
- 1,066
Bob, the hot rodders here know what you are talking about. A few others will, but the rest are probably scratching their heads (rightfully so.) Most ordianry people have no reason to have a clue..
Dolly Llama
Number 5
hey Bowb....
didya see I ran from the stock silencer thru the floor and used a mUffLer under my van??
"More flow than a 2 1/2 in. open pipe.
These Hooker Maximum Flow mufflers allow 99 percent more exhaust flow and produce more horsepower and torque than a 2 1/2 in. open pipe. They're constructed from aluminized and stainless steel"
http://store.summitracing.com/partdetai ... toview=sku
ZOOOOOMMMMMM....
BTW, Summit racing is right down the road from me
It's a cool store...
..L.T.A.
didya see I ran from the stock silencer thru the floor and used a mUffLer under my van??
"More flow than a 2 1/2 in. open pipe.
These Hooker Maximum Flow mufflers allow 99 percent more exhaust flow and produce more horsepower and torque than a 2 1/2 in. open pipe. They're constructed from aluminized and stainless steel"
http://store.summitracing.com/partdetai ... toview=sku
ZOOOOOMMMMMM....
BTW, Summit racing is right down the road from me
It's a cool store...
..L.T.A.
I had an older Cobb unit with a 3" turbo muffler as a silencer for a while and it did a good job on silencing the 4mp blower quite a bit. As for what it did to my air flow I could not tell you.
On my new (56 blower at full speed) machine I actually went with a stoddard 4" in and out silencer. I thought it was still too loud and added a flowmaster 4" I/O 2 chamber muffler after the stoddard.
A friend of mine came over who has a 38 hp / 5mp blower TM and we compared noise levels. Mine was quite a bit better than his so I yanked the flowmaster off and it was still better. don't know if the flowmaster muffler hurt my airflow but I do know it did not help it so I have removed it for good.
Anyone looking for one of the 4" I/O mufflers I would be willing to sell or trade it for something, It only has 56 hours run time on it and I paid around $100 for it
My 4" stoddard cost me around $575 shipped, but it is not an "of the shelf" part. It is one custom built Stanley steamer. I had a limited space for the silencer and that one was the best fit.
On a side note I have a radio shack DB meter I used to guage my TM against others and it was so inaccurate I almost threw it away. I would get higher readings from machines I knew were more quiet and also higher readings from my machine at idle than I did at full speed sometimes.
On my new (56 blower at full speed) machine I actually went with a stoddard 4" in and out silencer. I thought it was still too loud and added a flowmaster 4" I/O 2 chamber muffler after the stoddard.
A friend of mine came over who has a 38 hp / 5mp blower TM and we compared noise levels. Mine was quite a bit better than his so I yanked the flowmaster off and it was still better. don't know if the flowmaster muffler hurt my airflow but I do know it did not help it so I have removed it for good.
Anyone looking for one of the 4" I/O mufflers I would be willing to sell or trade it for something, It only has 56 hours run time on it and I paid around $100 for it
My 4" stoddard cost me around $575 shipped, but it is not an "of the shelf" part. It is one custom built Stanley steamer. I had a limited space for the silencer and that one was the best fit.
On a side note I have a radio shack DB meter I used to guage my TM against others and it was so inaccurate I almost threw it away. I would get higher readings from machines I knew were more quiet and also higher readings from my machine at idle than I did at full speed sometimes.
G
Guest
Guest
Kevin call em . I amintereseted in what you have. 940-642-2503
bob vawter
Grassy Knoller
One method to solve the initial value problem (with the initial values as posed above) is to take advantage of the property of the wave equation that its solutions obey causality. That is, for any point (xi,ti), the value of u(xi,ti) depends only on the values of f(xi + cti) and f(xi − cti) and the values of the function g(x) between (xi − cti) and (xi − cti) where these quantities are the only ones that show up in it. Physically, if the maximum propagation speed is c, then no part of the wave that can't propagate to a given point by a given time can affect the amplitude at the same point and time.
