dells68 7,498 #51 Posted August 25, 2020 On 8/23/2020 at 8:25 AM, AHS said: @dells68 what engine is that D160? A kohler.. it looks like It’s actually a 16hp Onan. Runs really good. I dig the sound of that big twin! 3 Share this post Link to post Share on other sites
Greentored 3,201 #52 Posted August 31, 2020 Ok, started with a cheap 1 3/4 fiberglass wrapped baffle for Harley drag pipes. It passed the 'yell test' (you all know dang well what the yell test is, dont deny it) I had to cut it in half to fit down inside the Tractor Supply muffler- it worked beautiful- super quiet! ...til I put it under load. Now it sounds like a combination of a popcorn popper and a rapid fire spitball being shot through a straw, and not much quieter. On to plan B- any of you guys running a Gravely muffler? Wondering about using that, coupled with a baffled stack? Share this post Link to post Share on other sites
Pullstart 62,787 #53 Posted August 31, 2020 Rylee’s Screamin’ Jimmy... 1 Share this post Link to post Share on other sites
ebinmaine 67,269 #54 Posted August 31, 2020 Scott, I have a gravely muffler on the charger 12 hydro project. Seems to work quite well for me. It is quiet. Your other option is to buy a late 70s Cub muffler off of a 10 horse Kohler. 12 horse Kohler. Cut the mounting tab off the side of the muffler if you want to. Turn it up as its own stack. Those are extremely quiet. That's what I have on my Patriot Horse which is a Kohler 8. Deeper tone. Much less noise. 1 Share this post Link to post Share on other sites
Greentored 3,201 #55 Posted August 31, 2020 @pullstart Is that unmuffled!!!??? Share this post Link to post Share on other sites
Greentored 3,201 #56 Posted August 31, 2020 51 minutes ago, ebinmaine said: Scott, I have a gravely muffler on the charger 12 hydro project. Seems to work quite well for me. It is quiet. Your other option is to buy a late 70s Cub muffler off of a 10 horse Kohler. 12 horse Kohler. Cut the mounting tab off the side of the muffler if you want to. Turn it up as its own stack. Those are extremely quiet. That's what I have on my Patriot Horse which is a Kohler 8. Deeper tone. Much less noise. Just looked up the video of your Charger running- that is perfect! I can turn it up and attach a stack to it, and if its too noisy, I can drop a baffle or second muffler onto it. Thanks!! 1 Share this post Link to post Share on other sites
Pullstart 62,787 #57 Posted August 31, 2020 (edited) 29 minutes ago, Greentored said: @pullstart Is that unmuffled!!!??? It goes down to a muffler in front of the engine, then up to a stainless tee then we made flanges to bolt the hand rail stacks onto. I taught Rylee to weld with that project @Greentored here is where we started the exhaust project. Edited August 31, 2020 by pullstart 1 2 Share this post Link to post Share on other sites
Tractorhead 9,064 #58 Posted August 31, 2020 Ok, short sound Check... With the new Muffler 383BECD8-59A8-4E78-B632-7F8E6426D329.MOV 1 1 Share this post Link to post Share on other sites
sqrlgtr 552 #59 Posted September 10, 2020 Sound check IMG_0581.MOV 2 Share this post Link to post Share on other sites
Greentored 3,201 #60 Posted September 14, 2020 The gravely muffler arrived last week. I love it- really tones things down. However, my age is showing. When turned upward and a section of pipe added, it was still too noisy for 2 hours at a time cutting grass. Angling the muffler down and ahead is not as cool as a stack, but cutting the grass was MUCH more pleasing. Think im gonna chalk it up to 'old man' and skip the stack on lawn duty- all the others have one, so that's acceptable, right? As a bonus, now I get to play with some ideas for a wild (but quiet) side pipe or something 3 Share this post Link to post Share on other sites
ebinmaine 67,269 #61 Posted September 14, 2020 Normally, the longer the pipe is the quieter it is. Also, the thicker the pipe is the quieter it is. I'm sure you're well aware of both of those things already but I remind everybody that if you can find some thick wall iron pipe which I think is schedule 80?... You can create a decent undercarriage exhaust with that . In the past I saw a lawn mower that was a vertical shaft Briggs 16 twin. The exhaust on that looped down under the engine and then went straight back to about where the rear hitch was. No muffler at all but it was actually fairly quiet. 1 Share this post Link to post Share on other sites
bottjernat1 2,190 #62 Posted September 14, 2020 Here is my rj58. She purrs! 2 1 Share this post Link to post Share on other sites
bottjernat1 2,190 #63 Posted September 14, 2020 Here is my 1976 d-160 1 1 Share this post Link to post Share on other sites
Tractorhead 9,064 #64 Posted September 14, 2020 Think now i‘m understand what is meant with Dancing Queen ...😂 1 Share this post Link to post Share on other sites
Greentored 3,201 #65 Posted October 14, 2020 (edited) A quick update, and changing my mind again- imagine that! Picked up a 312-8 a couple weeks ago for a deal I couldnt pass- all maintenance just done and ready to roll. I backed it off the trailer and cut the grass, and quickly realized how those things just purr with that factory muffler, and how I could just 'stack' the outlet and have a very quiet, stacked machine, much like my ol 520H was. SO, with that being said- where do I find these factory mufflers? Research shows they are not made anymore? I cant find a Nelson replacement either. @jimkemp tried to message ya, but it wouldnt let me send. Can you do it? Edited October 14, 2020 by Greentored Share this post Link to post Share on other sites
jimkemp 525 #66 Posted October 15, 2020 7 hours ago, Greentored said: A quick update, and changing my mind again- imagine that! Picked up a 312-8 a couple weeks ago for a deal I couldnt pass- all maintenance just done and ready to roll. I backed it off the trailer and cut the grass, and quickly realized how those things just purr with that factory muffler, and how I could just 'stack' the outlet and have a very quiet, stacked machine, much like my ol 520H was. SO, with that being said- where do I find these factory mufflers? Research shows they are not made anymore? I cant find a Nelson replacement either. @jimkemp tried to message ya, but it wouldnt let me send. Can you do it? I can build you one , im not sure why you cant message me Share this post Link to post Share on other sites
jimkemp 525 #67 Posted October 15, 2020 7 hours ago, Greentored said: A quick update, and changing my mind again- imagine that! Picked up a 312-8 a couple weeks ago for a deal I couldnt pass- all maintenance just done and ready to roll. I backed it off the trailer and cut the grass, and quickly realized how those things just purr with that factory muffler, and how I could just 'stack' the outlet and have a very quiet, stacked machine, much like my ol 520H was. SO, with that being said- where do I find these factory mufflers? Research shows they are not made anymore? I cant find a Nelson replacement either. @jimkemp tried to message ya, but it wouldnt let me send. Can you do it? Message sent to you 1 Share this post Link to post Share on other sites
Greentored 3,201 #68 Posted October 15, 2020 @jimkemp strange. Maybe just a glitch. Leroy, NY eh? I grew up an hour east of ya in Sodus. 1 Share this post Link to post Share on other sites
ebinmaine 67,269 #69 Posted October 15, 2020 1 hour ago, Greentored said: grew up You may be larger now than you were earlier in your life but I don't believe for a sweet second that you ever GREW UP any more than I did.. 1 2 Share this post Link to post Share on other sites
jimkemp 525 #70 Posted October 15, 2020 9 hours ago, ebinmaine said: You may be larger now than you were earlier in your life but I don't believe for a sweet second that you ever GREW UP any more than I did.. I dont think any of us did , And i wouldnt have it anyother way 1 1 Share this post Link to post Share on other sites
sqrlgtr 552 #71 Posted October 22, 2020 701 like to hear them little kohlers count um off... 1 Share this post Link to post Share on other sites
