Anyone make repro/custom mufflers in US

gimmesomeshelter

I'm aware of several vendors that offer high quality repro 25/36 mufflers in Europe, but I'm wondering if there's anyone doing this type of work in the US. Ideally, this person would be able to make a 36 hp muffler customized to my vintage speed needs. Wink

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Comments anyone?

Cheers,

Paul
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"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

henry roberts · Posted: Tue Aug 12, 2014 2:28 am Post subject:

i can't help you with a fabricator, but I'd love to know what your vintage speed needs are?

I have thought of multiple possible variations on the cylindrical 4 tip muffler but don't have the knowledge to even begin to figure out what would work let alone work better than stock.

gimmesomeshelter · Posted: Tue Aug 12, 2014 8:02 pm Post subject:

I'm a little frustrated that I can hire someone to design a custom cam for my engine, but I can't find someone who can do the same for a muffler that appears stock. I've looked into the issue, and muffler design appears to be a very complex process that requires a lot of math, trail/error, and dyno time. There are a number of programs out there that professionals use to design mufflers, but they're very (5 - 20K) expensive.

I'll probably end up using a NOS German muffler I have and some TDE tail pipes. Speaking of TDE tail pipes, I tried to order some from Karmann Konnection, but they no longer carry them.

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

dandand · Posted: Wed Aug 13, 2014 3:09 pm Post subject:

I went through this same search process last spring, but I found nothing better than the Vintage Speed products. At first I was planning on getting the 4 pipe version, but although they showed them on their website, they weren't yet shipping.
So I have the 2 pipe version.
Beware that these are not stock in appearance: the two outlet pipes are 51.25mm in diameter; noticeably bigger than stock.
I am happy with the weld quality and the sound - a little throatier than the stock muffler, but not much louder. (and they won't disappear after a few runs at Bonneville!)

gimmesomeshelter · Posted: Sun Aug 17, 2014 10:19 am Post subject:

I just heard about an outfit in the UK that make exhausts for VW's and Porsches. It's called Turbo Thomas. Here's an image of one of their VW mufflers.

Does anyone know anything about them?

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

RichardinNZ · Posted: Mon Aug 18, 2014 12:55 am Post subject: Turbo Thomas

Probably doesn't help too much, but he made these tailpipes for me!

_________________
Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253

ljc409

Spain's Complete Muffler Service in Portland, OR

This is a custom muffler for my 1969 Beetle with an EJ 22 engine.

[email protected]

AlteWagen · Troll Joined: February 23, 2007 Posts: 8699 Location: PNW

went through the same a few years back with no affordable options. I ended up buying a welder and cranked out my own. The main design is that of the 356B and I use a regular header for the primaries which can easily be re positioned for 40hp/36hp use. The 'collector/muffler' varies in size depending on displacement. The main chamber equals the total cc and each side chamber is 1/2. One large outlet seems to work the best vs two smaller pipes.

Link

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Official Dual Carb Thread
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