Porters or Smithy's ?
 

I just installed a set of Reds Headers and a pair of Smithy's muffler's but was really disappointed with the sound on the Smithy's. To me they are really quiet. I haven't put the tail pipes on yet, (Have to go to town and have the tail pipes made) Maybe that will make them sound better. I want a nice LOUD deep sound. I think I will take the Smithy's back off and try the Porters before they get welded on. Then Fish Tail Tips on the back. What do You guys think?

Re: Porters or Smithy's ?
 

My '35 Cabriolet has dual exhausts with Red's headers and Smithy mufflers. They were on the car when I purchased it. To me they are not loud at all. I don't know about the other brands, but if you want LOUD, these are not the brand for you. Stan

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Brockman 12" glasspac MellowTones! :cool:

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If you want to rattle windows when you drive thru town, use two different length glasspacs. Rich

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I use the Brockmans. Sound great according to everyone who hears them.

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I am going to take a look at the Brockman's. I kind of like the idea of running 2 different size's, Thanks very Much Guy's! Any other comments?

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If you block off your heat risers, you will find the Smitty's come alive some. I am running Red's Headers and long Smitty's behind a fairly well built '51 Merc in my '36 roadster.

I am very pleased with them.

John

Re: Porters or Smithy's ?
 

Brockman Steelpacks

Re: Porters or Smithy's ?
 

it takes a bit for the smitties to get louder, been running mine for 2-3 months and they are starting to rack off. also, nothing against reds headers but steel headers don't give the sound i like, which is deeper. i run fenton cast iron headers. even stock cast iron manifolds sound better than steel headers imho.

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I use ford tractor mufflers and change the ends on the mufflers. Small and cheap. Tractor supply sells them. Small diameter tailpipes help too on a flathead . 1-3/4 with duals

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Interesting. On most OHV engines I have worked on it's the other way around. Cast iron muffles the exhaust sound and steel headers seem to amplify it.

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I use 22" Smithys with stock manifolds. They are not loud, but they have a nice deep rumble. Loud gets obnoxious quickly on a long trip.

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I can not comment on which sound better but the quality of the headrers Red sent me was great. Not only did they fit well but the ceramic (?) coating on them still looks new 5 years later.

John Long

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It's to bad he can't get production straightened out.

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smittys are just another common type glass pack, not near the quality they were in the 60's, doesn't have the old time sound, they are living on there reputation from the 50's, change them to Brockmans steel packed

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I had never paid that much attention to the difference in the sound of flatheads with steel vs cast headers, that why I said interesting. I will pay more attention in the future and see if I can tell/learn the difference.

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If you want loud, use Cherry Bombs

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I just received a pair of stainless Porters, the quality is simply fantastic. Will be installing on my 39 Merc tomorrow morning..........will report back on the sound:)

Shoebox

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magnaflow sells good glass packs.nice deep rumbly sound to them.

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Straight pipes

Re: Porters or Smithy's ?
 

Now we're talking!

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Someone already mentioned this---Smitty mufflers get MUCH louder after a healthy engine blasts thru them for a month or so. Mine were good, initially, but are VERY annoying on a long drive after "burning-out".

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If you crave a nice sweet mellow tone, install a gutted muffler.
won't burst your eardrums.

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I use Red's headers and Brockman steel packed Mellow Tones on four of my Flatheads. If you call Brockman's and let them know what kind of sound you want, they will build you a set...

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Straight pipes 1,1/4 tail ,with a cut of or gate valve to divert it through a muffler when the noise get to you ,Ted

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Talked to Brockman today and affirmed that they will not do 1.75 in/outlet. Said he runs 17" steel packs on his flathead. If anyone comes up with a video I'd like to hear what they sound like. One short video demonstrates at idle sound but not at RPM..... I'm starting with 1.75 straight pipes and stock log pickup manifolds.......

Re: Porters or Smithy's ?
 

What size pipe does everybody run???

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My '47 which spent the majority of its life in CA has its original CI manifolds and the typical '50s exhaust pipe conversion kit for dual exhausts. It has the smaller 1-1/2 inch pipes.

It has its original Smithy mufflers from those days and although they don't rattle any windows they have a nice "bark" when the engine's under load.

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Running Red's headers with Headman turbo mufflers. Nice "medium" sound level set-up.

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I was cheap and went with a set of Walker Glasspack Mufflers - 24041, on my '40 stake truck, with 1 3/4" tailpipes. After about 5000 miles, I'm still quite pleased. I don't have any drone going down the highway.

https://www.youtube.com/watch?v=cDXwFNjfccI

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Straaaaaaight pipes!!!

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I got 18" glass packs on my 53 Victoria with Fenton Cast Iron Headers, took a while them burn in but now sound great, I am hard of hearing, I think they sound great!!!!!!!!!!!!!! we use to pour oil in them so they burn out faster.

Re: Porters or Smithy's ?
 

Thanks for all the Great Advice! I called Brockman's this morning and ordered a set of 12in. steel packs. Hope I like the sound or I will try something else. So now I have a Brand New Set of Smithy's with less than about 3 minutes on them. If anyone is interested I will make someone a deal on them. Thanks Again from Montana!

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Only way to fly !!!:D

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Interesting re Straight Pipes - on my 284ci ScOT blown engine the sound was so loud it was unbearable - and I like loud ! So I guess it depends on the way the engine is set up and your individual tolerance for loud.:D

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53 Mercury motor (stock), Red's headers and 1 3/4" diameter straight pipes = perfect sound for me.

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That post about brockmans having 1 3/4" in/out just makes me really mad. When I ordered mine the broad( I use the term loosely here) said the smallest they make is 2" in/out so that is what I bought & had to get reducers from the parts store. So much for brockmans for me in the future.

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A couple posts up says they do not have them in 1-3/4. On a new muffler I have sawed many inlet or outlets off and welded on a new one to the size I needed. Just finished another early ford chassis with all new pipe and a pair of ford tractor mufflers I changed the ends on. But having your own exhaust pipe bender makes the job easy.

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I've had straight pipes, but in my advancing years (68) I find them tiresome on a trip. The one I did really like was a 36 coupe with copper straight pipes.... that sounded very cool, and they glowed at night after a good hard run.