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Lets see some custom exhausts
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=31457
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Author:  gofish206 [ Sun Aug 12, 2012 8:24 pm ]
Post subject:  Lets see some custom exhausts

I would like to see some custom exhaust jobs people have done on the horizontal vangaurds

Author:  sftull [ Mon Aug 13, 2012 6:32 am ]
Post subject:  Re: Lets see some custom exhausts

I would like to see some as well.

Author:  mud slinger 69 [ Mon Aug 13, 2012 6:35 am ]
Post subject:  Re: Lets see some custom exhausts

23hp Dixie

Author:  Quackkillz [ Mon Aug 13, 2012 7:32 am ]
Post subject:  Re: Lets see some custom exhausts

^^^ Does that thing play the revelry, lol? It looks cool though, how does it sound?

Author:  barnes_53 [ Mon Aug 13, 2012 7:47 am ]
Post subject:  Re: Lets see some custom exhausts

Can't imagine where the inspiration for that exhaust came from.....unique to say the least.


Author:  Quackkillz [ Mon Aug 13, 2012 8:29 am ]
Post subject:  Re: Lets see some custom exhausts

Does anyone still have that pic of the oil can exhaust, I think it was an oil can.

Author:  Beadlejuicejr [ Mon Aug 13, 2012 9:07 am ]
Post subject:  Re: Lets see some custom exhausts

That's dguidrys exhaust

Author:  Mag10 [ Mon Aug 13, 2012 11:25 am ]
Post subject:  Re: Lets see some custom exhausts



Mandrel bent primaries, 2 separate resonation chambers, a couple of simple baffles inside. Less than $50 for material and maybe 2-3 hours of fab work.

Author:  banded-mallard [ Mon Aug 13, 2012 11:49 am ]
Post subject:  Re: Lets see some custom exhausts

Mag10, pm sent. Thats very similiar to what I'm trying to lay out for my 36 PD.

Author:  txmudcutter [ Mon Aug 13, 2012 5:20 pm ]
Post subject:  Re: Lets see some custom exhausts

viewtopic.php?f=3&t=30130


Here's dguidrys oil can muffler lol

Author:  Bayoublackhunter [ Mon Aug 13, 2012 6:04 pm ]
Post subject:  Re: Lets see some custom exhausts

Sent from my PG86100 using Tapatalk 2

Author:  mizzippi jb [ Mon Aug 13, 2012 6:48 pm ]
Post subject:  Re: Lets see some custom exhausts

Not this shiny now, but sounds dang good!

Author:  power731 [ Mon Aug 13, 2012 7:26 pm ]
Post subject:  Re: Lets see some custom exhausts

These have my Harley baffles in them.


Author:  brianb [ Mon Aug 13, 2012 8:42 pm ]
Post subject:  Re: Lets see some custom exhausts

couple of questions,
mag 10 and mizz, how is the exhaust you built configured on the inside
i have a fab shop and have thought about making my own but did not have a clue on the internals and also wanted to make sure i had the correct amount of back pressure on the motor that it needed

power, where did you get the duals

thx

Author:  med [ Mon Aug 13, 2012 9:37 pm ]
Post subject:  Re: Lets see some custom exhausts

Look at my "gutted exhaust"] post. Build it like that. I'm very happy with the end result.

Tapatalk 2

Author:  CootSlayerRMFT [ Mon Aug 13, 2012 10:44 pm ]
Post subject:  Re: Lets see some custom exhausts


Author:  dguidry [ Mon Aug 13, 2012 11:28 pm ]
Post subject:  Re: Lets see some custom exhausts


Author:  mizzippi jb [ Tue Aug 14, 2012 4:00 am ]
Post subject:  Re: Lets see some custom exhausts

The pipes go inside the chamber, make a 90 deg, and pass each other. They go about 3 inches past center on each side.

Author:  power731 [ Tue Aug 14, 2012 4:56 am ]
Post subject:  Re: Lets see some custom exhausts


Author:  mud slinger 69 [ Tue Aug 14, 2012 7:20 am ]
Post subject:  Re: Lets see some custom exhausts


Author:  crittergitter [ Tue Aug 14, 2012 8:19 am ]
Post subject:  Re: Lets see some custom exhausts

Hey med, I think when they swapped servers that thread on your exhaust build got lost. Could you pm me it or text or something? I am wanting to build the same thing just trying to get the inside right. Its got to be better than stock.

Author:  banded-mallard [ Tue Aug 14, 2012 8:46 am ]
Post subject:  Re: Lets see some custom exhausts

one thing I noticed is if you search under author "med" it will show all his post. I just did it. If you search for gutted exhaust, it shows nothing. Could be server related.

But...... in looking at the gutted exhaust, basically you have a completely open exhaust except for the outlet pipe with the small holes. Kinda acts like a baffle. Wonder how it would sound if that were removed also. Then it would be totally free flowing.

Author:  Mag10 [ Tue Aug 14, 2012 10:45 am ]
Post subject:  Re: Lets see some custom exhausts

My design has 2 separate chambers one for each cylinder. There is plate through the center with holes drilled through it and then a deflector plate on the outlet side of that, that forces that gases out to the perimeter of the tube before it can exit.

Author:  banded-mallard [ Tue Aug 14, 2012 11:52 am ]
Post subject:  Re: Lets see some custom exhausts

mag10, got the drawings, how is the center circle welded in? From the drawing, it looks like both plates and the middle circle are welded together. And how is the inside stuff welded or attached to the endcaps.

Author:  dwight37 [ Tue Aug 14, 2012 7:52 pm ]
Post subject:  Re: Lets see some custom exhausts

Here's mine
Nothing special
Guys on the beach says it sounds like a big block skipping down the river

Author:  brianb [ Tue Aug 14, 2012 8:04 pm ]
Post subject:  Re: Lets see some custom exhausts

dwight, are those cherry bombs also, on a scale of 1 to 10 with 10 being straight pipe, how does it compare
im looking for something that sounds good but does not need to be completely obnoxiously loud

Author:  dwight37 [ Tue Aug 14, 2012 8:15 pm ]
Post subject:  Re: Lets see some custom exhausts

They are glass packs I picked them up from jegs $14.00!!
On open water (river) I can be heard a ways away!!
While driving i don't think they are that loud but I'm not on the bussiness end of them plus I angled them to be just a couple inches off the water so not sure if that helps or hurts it on volume.
It will turn heads that's a fact

Author:  brianb [ Tue Aug 14, 2012 8:16 pm ]
Post subject:  Re: Lets see some custom exhausts

so where did you get the flanges that bolts on to the engine

Author:  dwight37 [ Tue Aug 14, 2012 8:21 pm ]
Post subject:  Re: Lets see some custom exhausts

I work at a machine shop!!
It does have its perks

Author:  med [ Tue Aug 14, 2012 8:28 pm ]
Post subject:  Re: Lets see some custom exhausts

This is after gutting. In what I got from searching old posts (not sure if they are here now) that if you run the outlet inside the can and 1/2" from the back wall it gives you the needed back pressure. In a post from BayouBoy on the old thread he played with the length of pipe on the outside of the can and that stopped the occasional backfire he got. I have a pd and the outlet curves a little and is a little longer in comparison to say a mudbuddy pipe. I have had zero backfiring issues. It has a good sound and very glad I went this route. When I need another I will do the same thing again.



Tapatalk 2

Author:  brianb [ Tue Aug 14, 2012 8:33 pm ]
Post subject:  Re: Lets see some custom exhausts

was this the stock stainless exhaust, did you use stainless mig and helium co2 argon to weld it back up?

Author:  med [ Tue Aug 14, 2012 8:34 pm ]
Post subject:  Re: Lets see some custom exhausts

It's a stock stainless. I had a guy weld it up. Not sure what he used though.

Tapatalk 2

Author:  banded-mallard [ Wed Aug 15, 2012 5:07 am ]
Post subject:  Re: Lets see some custom exhausts

Is that how it looked when you opened it up, or did you move the outlet back to the 1/2" mark and re-weld?

Author:  Mag10 [ Wed Aug 15, 2012 6:10 am ]
Post subject:  Re: Lets see some custom exhausts

banded,

I welded the internals as a sub weldement and then slipped them in. I made a couple of stitch welds around the center divider on the inside. You could drill some holes and plug weld also. just make sure that you do not have drips of material that could break off and get in the valve train. This is not as big of a deal on a vertical though. When I install the end caps, I just make sure they are seated flush with the internals. I do not usually add any weld between the end caps and the internals, but you could add some plug welds.

Author:  med [ Wed Aug 15, 2012 6:24 am ]
Post subject:  Re: Lets see some custom exhausts

It looked like this in the beginning.




I cut all that crap out and the other pic is what it looked like when I got through. The exit pipe came from the factory just like the first pic shows it. Only thing I had to get welded was when putting the end caps back.

Tapatalk 2

Author:  banded-mallard [ Wed Aug 15, 2012 6:39 am ]
Post subject:  Re: Lets see some custom exhausts

Holy crap. That flow was cut off big time.

Author:  kevinpoisso [ Sun Aug 19, 2012 7:18 am ]
Post subject:  Re: Lets see some custom exhausts

My ol man owns a machine shop and Im a pretty good welder myself but before I go to building a muffler how much will I gain just by doing the muffler??

Author:  h2ofowlhunter [ Mon Aug 20, 2012 2:59 pm ]
Post subject:  Re: Lets see some custom exhausts

Just fabbed it up this weekend. Sounds great but haven't had a chance to run it yet.

Author:  brianb [ Mon Aug 20, 2012 4:43 pm ]
Post subject:  Re: Lets see some custom exhausts

what type of pipes is that

Author:  SCmudder7071 [ Mon Aug 20, 2012 7:04 pm ]
Post subject:  Re: Lets see some custom exhausts


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