Straight pipe exhaust

Howdy forum friends. A an insignificant question.

Upon inspection of my exhaust system, I found the original muffler has s spit in it. My tractor is a HD16DC.

Has anyone run just a straight exhaust pipe without a muffler? Not sure I would find a replacement unit.

Bet it's loud but I use hearing protection regardless.

Depends on IF some back pressure is needed for proper performance of engine - On my little 2-71 on HD5G - I made my own ehaust as muffler rotted out and the Oval muffler that was stock bolted directly to head - I used 4" round tube welded to plate to attach to engine - then welded a 2 1/2" outlet to that and extended through hood - attached a IH tractor muffler to that - did remove baffel from muffler though for better flow . 

Is that a turbocharged engine? Here in the "land of fruits and nuts" and I am not talking about tree products, where the loonies are ,with out a doubt, running the asylum , a spark arrestor is required on just about anything off highway unless it has a turbo. If there is a fire where you are working, it doesn't matter what started it, and your piece of equipment does not have a legal spark arrestor, you will be cited and stuck with all  suppression costs associated with that fire. Can you imagine the operating costs on a Sikorsky  Sky Crane (about 30K/hr) and a DC 10 and all the dozers, firetrucks and alllllll the little yellow jacketed minions that hooked themselves to a State nipple, that do nothing but watch the airplanes. Long story short, a spark arrestor will quite down an engine considerably.    Tad

CAL(KS) wrote: Im guessing it would be awful loud.  I would try to repair yours by welding or you could fabricate something without too much trouble.  A large section of round pipe with inlet and outlet welded on and some kind of smaller perforated pipe down the center.  It would probably make a big difference in sound and pretty simple but up to you.   or put on a turbo and straight pipe... lol

The split is easy to get at and I will likely put a bead on it to seal it back up. I was mainly curious as to if anyone was using just a straight pipe deliberately. As loud as my old girl is, I cannot imagine her with out a muffler.

Thank you for the opinion Cal.

DMiller wrote: My 7G 344 is a straight pipe on a turbo. I HAVE to use ear protection on it. I am going to do some exhaust rehab on it come spring.

I like the exhaust tone of my 16 but she barks pretty loud with the muffler even with a split. No turbo on her either. I heard the 16000 engine did not respond well to a turbo added on. No intent to do so either.

Thank you D.

That would be a good approach and will see if feasible. My split is on the top do I am figuring a way for a heavy or thicker gauge cap piece and come down the sides.

Thank you Ian

I had a curved straight pipe on my HD5 D, it wasn't very loud, I placed the curve outlet towards the front.

CAL(KS) wrote: chrome turnout stack on top of muffler is the way to go.

I am leaning towards the turn out slash cut chrome pipe when painted. I have a straight pipe off the muffler that has the rain cap on it. I took it off and cleaned it and painted it flat black and it is an improvement. With a fresh paint job, I like the look of yeller with black accents. Hard to beat chrome though Cal.

shameless dude wrote: I had a curved straight pipe on my HD5 D, it wasn't very loud, I placed the curve outlet towards the front.

Thank you shameless.

I lost the muffler on my Oliver 1855 tractor. It is a 1972. Put a great straight slash cut chrome pipe on it and love the sound. My Oliver has the 98 HP Waukesha diesel engine in it. It sounds awesome moving what that straight pipe on it. Yes its chrome!

If you look on the Summit Racing or Jegs websites you can find short bullet type mufflers/glasspacks. I bought one for a 7060 and added muffler pipe with the same od as the muffler.  A little welding, grinding and paint and it works well. I think I had $70 in it.

When we got our new-to-us FA 10 dozer (and before the books arrived) I wasn't sure who made what on it.  Except for the muffler, reasoning that only Italians would have used a baked enamel muffler

Jerry if you want to pay the shipping. I will give you my original muffler. I’m going to remove it this weekend. Because I will make a self hanging exhaust system to release the pressure on the manifold.

I can send the 3 light set up to ;)

I have bin working my Ass off lately, mostly for Cat and a bit with my Cat digger. In the meanwhile Joel have send a manifold overseas that should be fixable. It have received to Denmark, but the tax system has taken the lead and they are ripping me for money Big time!! Today I’m started to prepare the dozer for the manifold but that didn’t turn out well because I snapped 5 studs so tomorrow’s I’m gonna get the drill skills testet.

The weather here is damm cold but it’s only -2 C no snow but it’s storming and the air is thin. Over here they give all the roads salt 4-6 times a day so there is salt everywhere by now It’s make a big rust problem, and a lot of washer fluid ;)