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Re: [Zmagnette] Stub stacks <zmagnette@autox.team.net> <zmagnette.autox.

To: "List for the Z Magnette Group - North America" <zmagnette@autox.team.net>
Subject: Re: [Zmagnette] Stub stacks <zmagnette@autox.team.net> <zmagnette.autox.team.net>
From: "Wayne & Isabel Hardy" <gwhardy@suddenlink.net>
Date: Fri, 15 Nov 2013 16:27:15 -0600
Delivered-to: mharc@autox.team.net
Delivered-to: zmagnette@autox.team.net
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References: <5b4e8644042c995f7553dd38efcffeab@caverock.net.nz><CD120D25-04F6-4BA4-BA7D-58BC79D8BD15@comcast.net><32E08340-FDAE-448C-8104-14654ABB6810@lpl.arizona.edu><005e01cee0d1$3532c730$9f985590$@bmts.com><0E958BEF-EEF8-496E-827E-0F021E95F9C8@comcast.net><37B4BFD45EEF4947B56FE3273A254F18@IsabelPC><1384527536.76526.YahooMailNeo@web184706.mail.ne1.yahoo.com><5CF9CEE5455645FBA7A554EA687FC1F0@IsabelPC> <4D4FABA15328FC42B1AA0DEE4673548C0188BE7523B1@DR-EX-04.datacenter.dataresolution.net>
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Kelvin,
Years ago I made a nice little cold air ram box for my MGA after seeing =
the one on the LeMans Healey 100. Made mine from a Radio Shack aluminum =
box chassis with a aluminum plate screwed on the back. Worked like a =
charm and I even had a little Brillo pad type air strainer in the =
section of the radiator mounting plate where the hose went through. Just =
put a screen on the metal, filled the area with steel wool, and screened =
up the other side before mounting the hose. I used the heater air hose =
sized stuff so it would mount up nice and easy. I found that the =
increased air pressure in the carbs tended to lift the floats and shut =
off the gas flow until I routed the little overflow pipes from the carb =
float chambers into the ram air box. That seemed to equalize =
things.....Gosh this was in about 19ought 59 I was doing this stuff to =
go a tiny bit faster. I used  little short about 3/4 inch long  velocity =
stacks as I remember, inside the cold air box.

Wombat

From: Kelvin Dodd=20
Sent: Friday, November 15, 2013 12:26 PM
To: List for the Z Magnette Group - North America=20
Subject: Re: [Zmagnette] Stub stacks

The point is that if you smooth out the air flow at the transition from =
filter plate to carburetor throat, more air can pass since there is less =
effective constriction caused by the edge affected air flow.=20

=20

On this note. Once you do have your MG engines tuned up and happy. Moss =
has been working on a cold air intake with integral ram pipe design that =
was recently approved for production.=20

=20

This was primarily developed for the MGA and MGB, but would probably fit =
nicely on a Magnette.  I=E2=80=99ll get more information to the list =
when the project is finalized.=20

=20

Kelvin.=20

=20

=20

From: zmagnette-bounces@autox.team.net =
[mailto:zmagnette-bounces@autox.team.net] On Behalf Of Wayne & Isabel =
Hardy
Sent: Friday, November 15, 2013 9:16 AM
To: Michael Anderson; List for the Z Magnette Group - North America
Subject: Re: [Zmagnette] Stub stacks

=20

Well funny thing is that several automotive engineers and motor builders =
have done a lot of work with flow benches and the like, (D. Vizard for =
one) and have shown that these properly built Velocity stacks will =
INCREASE flow into the carb mouth..ie allow MORE air in, not just smooth =
it out. I don=E2=80=99t have my flow measuring devices any more, but =
don=E2=80=99t question what the engineering elves like David Vizard say =
on this matter.

=20

=20



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Archive: http://www.team.net/archive
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<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 14pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV><FONT size=3D4>Kelvin,</FONT></DIV>
<DIV><FONT size=3D4>Years ago I made a nice little cold air ram box for =
my MGA=20
after seeing the one on the LeMans Healey 100. Made mine from a Radio =
Shack=20
aluminum box chassis with a aluminum plate screwed on the back. Worked =
like a=20
charm and I even had a little Brillo pad type air strainer in the =
section of the=20
radiator mounting plate where the hose went through. Just put a screen =
on the=20
metal, filled the area with steel wool, and screened up the other side =
before=20
mounting the hose. I used the heater air hose sized stuff so it would =
mount up=20
nice and easy. I found that the increased air pressure in the carbs =
tended to=20
lift the floats and shut off the gas flow until I routed the little =
overflow=20
pipes from the carb float chambers into the ram air box. That seemed to =
equalize=20
things.....Gosh this was in about 19ought 59 I was doing this stuff to =
go a tiny=20
bit faster. I used&nbsp; little short about 3/4 inch long&nbsp; velocity =
stacks=20
as I remember, inside the cold air box.</FONT></DIV>
<DIV><FONT size=3D4></FONT>&nbsp;</DIV>
<DIV><FONT size=3D4>Wombat</FONT></DIV>
<DIV=20
style=3D"FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; =
COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: =
inline">
<DIV style=3D"FONT: 10pt tahoma">
<DIV><FONT size=3D4 face=3DCalibri></FONT>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=3Ddoddk@mossmotors.com=20
href=3D"mailto:doddk@mossmotors.com";>Kelvin Dodd</A> </DIV>
<DIV><B>Sent:</B> Friday, November 15, 2013 12:26 PM</DIV>
<DIV><B>To:</B> <A title=3Dzmagnette@autox.team.net=20
href=3D"mailto:zmagnette@autox.team.net";>List for the Z Magnette Group - =
North=20
America</A> </DIV>
<DIV><B>Subject:</B> Re: [Zmagnette] Stub stacks</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D"FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; =
COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: =
inline">
<DIV class=3DWordSection1>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d">The=20
point is that if you smooth out the air flow at the transition from =
filter plate=20
to carburetor throat, more air can pass since there is less effective=20
constriction caused by the edge affected air flow. =
<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d"><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d">On=20
this note. Once you do have your MG engines tuned up and happy. Moss has =
been=20
working on a cold air intake with integral ram pipe design that was =
recently=20
approved for production. <o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d"><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d">This=20
was primarily developed for the MGA and MGB, but would probably fit =
nicely on a=20
Magnette.&nbsp; I=E2=80=99ll get more information to the list when the =
project is=20
finalized. <o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d"><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d">Kelvin.=20
<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d"><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
#1f497d"><o:p></o:p></SPAN>&nbsp;</P>
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<DIV=20
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<P class=3DMsoNormal><B><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
'Tahoma','sans-serif'">From:</SPAN></B><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">=20
zmagnette-bounces@autox.team.net =
[mailto:zmagnette-bounces@autox.team.net] <B>On=20
Behalf Of </B>Wayne &amp; Isabel Hardy<BR><B>Sent:</B> Friday, November =
15, 2013=20
9:16 AM<BR><B>To:</B> Michael Anderson; List for the Z Magnette Group - =
North=20
America<BR><B>Subject:</B> Re: [Zmagnette] Stub=20
stacks<o:p></o:p></SPAN></P></DIV></DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P>
<DIV>
<DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 13.5pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
black">Well=20
funny thing is that several automotive engineers and motor builders have =
done a=20
lot of work with flow benches and the like, (D. Vizard for one) and have =
shown=20
that these properly built Velocity stacks will INCREASE flow into the =
carb=20
mouth..ie allow MORE air in, not just smooth it out. I don=E2=80=99t =
have my flow=20
measuring devices any more, but don=E2=80=99t question what the =
engineering elves like=20
David Vizard say on this matter.</SPAN><SPAN=20
style=3D"FONT-SIZE: 14pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
black"><o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: =
black">&nbsp;<o:p></o:p></SPAN></P></DIV></DIV></DIV>
<DIV>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><SPAN=20
style=3D"FONT-FAMILY: 'Calibri','sans-serif'; COLOR: =
black"><o:p></o:p></SPAN>&nbsp;</P></DIV></DIV></DIV></DIV>
<P>
<HR>
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list<BR><BR>Donate: http://www.team.net/donate.html<BR>Archive:=20
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