A bit remembered:
When I purchased a 1941 Ford Convertible I had "GlassPacks" (or
CherryBombs" installed. It wasn't TOO loud. "GlassPacks" were the
muffler of the era, and regularly blew out the fiberglass stuffing and
became VERY loud.
My 1951 MG-TD had a "GlassPack" and a "cut-out" exhaust pipe swapper to
a straight through pipe. The "cut-out" was a bolt on from the Pep Boys,
and would leak through the "sandwich seal". Had to replace it with a
simple "Y", and put a large plumbing plug at the end of the tail pipe.
OK when through the GlassPack, and multi-loud with the straight pipe.
My 1954 XK120M had the factory exhaust with dual muffler cores inside a
single outer wrap, and twin exhaust systems for front and rear 3
cylinders all the way to the rear. NON "M" versions had only one
muffler, and later XK140 models had separated exhausts. The 120M set-up
was the BEST sounding ever.
So, to answer the question "How loud is too loud?", there ARE
authorities on the subject. They usually have the same first name -
Most municipalities, and even states, have "noise abatement" regulations
and significant fines requiring proof of "fixing" at an authorized
repair station. I know, I've met them. In the early days they seemed
to hate "foreign cars" and hot-rods.
As I dimly recall, 110 db is the max allowed by statute.
Editor - TigersUnited.com
Teepen, Jere wrote:
> If you would like to hear these mufflers go to the following link:
> The recording on youtube was courtesy of Tim Ronak and was recorded the CAT
> Dyno Day in March 2008.
> Jere Teepen
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