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I heard it from someone else and I've tried it myself : the endpipe turned =
upwards gives much better noise reduction than turning it downwards, probab=
ly because of the reflection of the sound waves upon the track surface when=
turned down.=20
Marcel=20
Van: "fot" <fot@autox.team.net>=20
Aan: "Duncan Charlton" <duncan.charlton54@gmail.com>=20
Cc: "fot" <fot@autox.team.net>=20
Verzonden: Dinsdag 9 oktober 2018 20:34:47=20
Onderwerp: Re: [Fot] Mufflers?=20
Thats what I have on the Alfa. A straight pipe with a turn down on the end =
that I can rotate away from the sound testing equip.=20
On Mon, Oct 08, 2018 at 08:31 PM, Duncan Charlton via Fot wrote:=20
I=E2=80=99m told that a turn-down on the end of the tail pipe can cause a s=
ignificant drop the meter reading.=20
Duncan=20
BQ_BEGIN
On Oct 8, 2018, at 4:43 PM, Rocky Entriken via Fot < [ mailto:fot@autox.tea=
m.net | fot@autox.team.net ] > wrote:=20
A Supertrapp takes my HP Spitfire (13:1) down to about 90 most days. Highes=
t I=E2=80=99ve hit the meter was 94 on a high humidity day. And I run it op=
en, no plates, straight out the back.=20
--Rocky Entriken=20
From: Brian Dennis via Fot=20
Sent: Monday, October 8, 2018 3:08 PM=20
To: FOT Triumph=20
Subject: [Fot] Mufflers?=20
What are folks using on GT6 to get noise down to 98db? Full race 12:1 2.0L.=
Most local (New England) tracks have noise rules. Some have open exhaust d=
ays but are limited.=20
Thanks, Brian=20
Foster, RI=20
[ https://overview.mail.yahoo.com/?.src=3DiOS | Sent from Yahoo Mail for=20
iPhone ]=20
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
http://www.fot-racing.com=20
Archive: http://www.team.net/pipermail/fot=20
e4.com=20
_______________________________________________=20
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Archive: http://www.team.net/pipermail/fot=20
on54@gmail.com=20
_______________________________________________=20
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[ http://www.fot-racing.com/ | http://www.fot-racing.com ]=20
]=20
Archive: [ http://www.team.net/pipermail/fot | http://www.team.net/pipermai=
l/fot ]=20
ptonline.net | http://autox.team.net/mailman/options/fot/alfetta95@optonlin=
e.net ]=20
BQ_END
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arcel@telenet.be=20
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<html><body><div style=3D"font-family: Verdana, Arial, Helvetica, sans-seri=
f; font-size: 10pt; color: #000000"><div>I heard it from someone else =
and I've tried it myself : the endpipe turned upwards gives much better no=
ise reduction than turning it downwards, probably because of the reflection=
of the sound waves upon the track surface when turned down.</div><div>Marc=
el</div><div><br></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div da=
ta-marker=3D"__HEADERS__"><b>Van: </b>"fot" <fot@autox.team.net><br><=
b>Aan: </b>"Duncan Charlton" <duncan.charlton54@gmail.com><br><b>Cc: =
</b>"fot" <fot@autox.team.net><br><b>Verzonden: </b>Dinsdag 9 oktober=
2018 20:34:47<br><b>Onderwerp: </b>Re: [Fot] Mufflers?<br></div><br><div d=
ata-marker=3D"__QUOTED_TEXT__"><div style=3D"font-family:Verdana">Thats wha=
t I have on the Alfa. A straight pipe with a turn down on the end tha=
t I can rotate away from the sound testing equip.</div><div style=3D"font-f=
amily:Verdana"><br><br><br>On Mon, Oct 08, 2018 at 08:31 PM, Duncan Charlto=
n via Fot wrote:<br><br><blockquote style=3D"border-left: 2px solid rgb(136=
, 136, 136); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex">I=E2=80=99m told=
that a turn-down on the end of the tail pipe can cause a significant drop =
the meter reading.<div class=3D""><br class=3D""></div><div class=3D"">Dunc=
an<br class=3D""><div><br class=3D""><blockquote class=3D""><div class=3D""=
>On Oct 8, 2018, at 4:43 PM, Rocky Entriken via Fot <<a href=3D"mailto:f=
ot@autox.team.net" class=3D"" target=3D"_blank">fot@autox.team.net</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D"">
<div dir=3D"ltr" class=3D"">
<div dir=3D"ltr" class=3D"">
<div style=3D"font-size: 12pt; font-family: Calibri;" class=3D"">
<div class=3D"">A Supertrapp takes my HP Spitfire (13:1) down to about 90 m=
ost days.=20
Highest I=E2=80=99ve hit the meter was 94 on a high humidity day. And I run=
it open, no=20
plates, straight out the back.</div>
<div class=3D""> </div>
<div class=3D"">--Rocky Entriken</div>
<div style=3D"font-size: small; text-decoration: none; font-family: Calibri=
; font-weight: normal; font-style: normal; display: inline;" class=3D"">
<div style=3D"FONT: 10pt tahoma" class=3D"">
<div class=3D""> </div>
<div style=3D"BACKGROUND: #f5f5f5" class=3D"">
<div style=3D"font-color: black" class=3D""><b class=3D"">From:</b> <a titl=
e=3D"fot@autox.team.net">Brian=20
Dennis via Fot</a> </div>
<div class=3D""><b class=3D"">Sent:</b> Monday, October 8, 2018 3:08 PM</di=
v>
<div class=3D""><b class=3D"">To:</b> <a title=3D"fot@autox.team.net">FOT T=
riumph</a> </div>
<div class=3D""><b class=3D"">Subject:</b> [Fot] Mufflers?</div></div></div=
>
<div class=3D""> </div></div>
<div style=3D"font-size: small; text-decoration: none; font-family: Calibri=
; font-weight: normal; font-style: normal; display: inline;" class=3D"">Wha=
t=20
are folks using on GT6 to get noise down to 98db? Full race 12:1 2.0L. Most=
=20
local (New England) tracks have noise rules. Some have open exhaust days bu=
t are=20
limited.=20
<div class=3D"">Thanks, Brian </div>
<div class=3D"">Foster, RI<br class=3D""><br class=3D""><br class=3D""><a h=
ref=3D"https://overview.mail.yahoo.com/?.src=3DiOS"; class=3D"" target=3D"_b=
lank">Sent from Yahoo Mail for=20
iPhone</a><br class=3D""></div><div class=3D"">
<br></div><hr class=3D"">
_______________________________________________<br class=3D""><a href=3D"ma=
ilto:fot@autox.team.net" class=3D"" target=3D"_blank">fot@autox.team.net</a=
><br class=3D""><br class=3D"">http://www.fot-racing.com<br class=3D""><br =
class=3D"">Donate:=20
http://www.team.net/pipermail/fot<br class=3D"">Unsubscribe/Manage:=20
http://autox.team.net/mailman/options/fot/rocky@spitfire4.com<br class=3D""=
><br class=3D""><br class=3D""></div></div></div></div>
_______________________________________________<br class=3D""><a href=3D"ma=
ilto:fot@autox.team.net" class=3D"" target=3D"_blank">fot@autox.team.net</a=
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utox.team.net/mailman/options/fot/duncan.charlton54@gmail.com<br class=3D""=
><br class=3D""><br class=3D""></div></blockquote></div><br class=3D""></di=
v><hr>_______________________________________________<br>
fot@autox.team.net<br>
<br>
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ons/fot/alfetta95@optonline.net</a><br>
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</blockquote></div><br>_______________________________________________<br>f=
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