[DeTomaso] ANSA mufflers

[michael@michaelshortt.com]

my new project/business is non- prescription hearing aids.

WWW.denalpls.com

1/4 the cost at the  same quality (better than many) as those from your ENT
doctor and best of All 100% made in the USA.

lol...make'm louder, send me business!

Michael
On May 22, 2011 4:32 PM, "Pantera Place" <PanteraPlace at hotmail.com> wrote:
> Jim,
>
>
>
> Picked up a RS db meter today and did some testing. At idle (performance
> cam at about 850 RPM) the interior db is between 104 and 106 with the
> windows down. Windows up deduces the db to about 98. At WOT (up to about
> 3,500) the interior db drops to about 98 and around 102 db cruising at
2,000
> RPM. Much less when out of the 2,000 RPM range.
>
>
>
> Five feet behind the car at idle is 101 db. I'm somewhat surprised at the
> high db readings, but because I've made the modifications one step at a
time
> the increase has been a slow process. Expect I'm about a loud as I should
> be without ear protection!
>
>
>
> OSHA work rules allow up to 90 db for 8 hours. If the noise level reaches
> 115 dB hearing protection is required if the anticipated exposure exceeds
15
> minutes.
>
>
>
> I'll do some testing with other Pantreras and see how the levels compare.
>
>
>
> Mike
>
>
>
>
>
> From: Pantdino [mailto:pantdino at aol.com]
> Sent: Saturday, May 21, 2011 8:39 PM
> To: panteraplace at hotmail.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] ANSA mufflers
>
>
>
> Mike,
>
>
>
> the resistance of airflow thru a tube is inversely proportional to the
> fourth power of the radius-- so if you double the diameter of a hole the
> resistance decreases to 1/16th. So yes, the resistance thru all those
little
> holes is much greater than thru a single large hole.
>
>
>
> What you describe regarding being disappointed with new mufflers being too
> quiet is why I have not replaced the rusted-out, ratty-looking Ansas on my
> car. I like the sound and that is more important to me than appearance.
>
>
>
> Do you have a sound level meter? You can get one at Radio Shack very
> inexpensively. It would be interesting to see what levels you get behind
> your car compared to a GTS, Hall, and other systems.
>
>
>
> Jim Oddie
>
>
>
>
>
>
>
> -----Original Message-----
> From: Pantera Place <panteraplace at hotmail.com>
> To: detomaso at realbig.com
> Sent: Sat, May 21, 2011 2:57 pm
> Subject: [DeTomaso] ANSA mufflers
>
> I've been working on a series of modifications to my ANSA mufflers to
> improve the exhaust flow and relieve back pressure. The latest work is at
> the bottom of this page http://www.panteraplace.com/page200.htm
>
>
>
> Mike
>
>
>
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