Of course, we also need to differentiate "good noise" from "bad noise"...
;-)
In a message dated 4/7/2013 1:25:14 P.M. Pacific Daylight Time,
tsmit@shaw.ca writes:
True enough, but the LAT73/LAT74 headers and exhaust, that these mufflers
were part of, were not really intended for stock engines.
My Tiger came to me with a five-bolt 289 with ported and polished heads, a
Holley 600 and F4B manifold, and a pretty lopey cam. 'Quiet' was not
really in its repertoire, although sticking with a 2 inch exhaust system does
help keep the overall noise level down compared with 2 1/4 or 2 1/2 inch
pipe, at the expense of some performance at the high end.
Theo
On 4/7/2013 1:58 PM, _CoolVT@aol.com_ (mailto:CoolVT@aol.com) wrote:
I can tell you that in using cheap old glass paks with a stock engine and
the same mufflers with a hopped up 302....they are much, much louder with
the 302. I shouldn't think a stock engine would be that difficult to muffle.
Mark L
In a message dated 4/7/2013 3:37:15 P.M. Eastern Daylight Time,
_tsmit@shaw.ca_ (mailto:tsmit@shaw.ca) writes:
Mike,
Here's a picture of what I think are the Mitchell mufflers - these are
what was on my Tiger when I got it.
For the rest of you that won't get the picture:
The body is 24" long, 3x5" oval, 2" in and out. Contrary to what I
remembered, the hangers attach 5" rearward from the front of the muffler
body - there is only about 20 inches between where the hangers attach on
the chassis and the rear axle tube.
I do recall the front of these mufflers pretty much touching the
rearward part of the underbody X frame, just behind the little exhaust
pipe notch in the X. The sound of these mufflers was pretty aggressive,
but it went well with the rest of the system and engine.
I would also be concerned with the amount of sound suppression that's
possible in a small diameter muffler such as the chambered ones in the
link below. It may be that with proper choice of all the internal
volumes, they get noise cancellation at most of the frequencies of
interest, but it seems to me that the overall result would still be
pretty dependent on the rest of the package, i.e. engine displacement,
cam, and the diameter of the rest of the exhaust.
Theo
On 4/7/2013 10:28 AM, _MWood24020@aol.com_ (mailto:MWood24020@aol.com)
wrote:
> Thanks, Theo. I was looking around the 'net yesterday and saw this:
> http://www.classicchambered.com/
> Concern is that there would really be minimal muffling. Upside would be
> installation, particularly in terms of avoiding the "mufflers hanging
low"
> issue/look we have with our cars.
>
> I also had another friend tell me he installed the new tech, small
diameter
> glasspacks on his Tiger with very good results.
>
> I'm not a big fan of Flowmaster mufflers. I've yet to have an install
where
> there wasn't some droning, regardless as to whether running an H or X
> pipe. They do sound good under throttle and are made very well, though!
[demime 1.01d removed an attachment of type image/jpeg which had a name of
IMG_1333.JPG]
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