<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span>Are there any pictures of the vanes that are being discussed?</span></div><div><span>Mark</span></div><div><span></span> </div><div style="display: block;" class="yahoo_quoted"> <br> <br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> On Sunday, February 9, 2014 7:23 PM, Stephen Nelson <steve@snclocks.com> wrote:<br> </font> </div> <div class="y_msg_container"><div id="yiv9671637330"><style>
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<div class="yiv9671637330MsoNormal"><font color="navy" size="2" face="Arial"><span style="color: navy; font-family: Arial; font-size: 10pt;">I believe flow vanes act to reduce
turbulence in a flow stream. The Reynolds number, a dimensionless
quantity that is used to help predict similar flow patterns in different fluid
flow situations, is directly proportionate to the diameter of the flow
channel. Putting in a vane reduces the flow diameter, thereby reducing
turbulence and increasing flow.</span></font></div>
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<div class="yiv9671637330MsoAutoSig"><font color="navy" size="2" face="Arial"><span style="color: navy; font-family: Arial; font-size: 10pt;">Stephen Nelson</span></font></div>
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<div id="yiv9671637330yqt22755" class="yiv9671637330yqt4196101517"><div class="yiv9671637330MsoNormal"><b><font size="2" face="Tahoma"><span style="font-family: Tahoma; font-size: 10pt; font-weight: bold;">From:</span></font></b><font size="2" face="Tahoma"><span style="font-family: Tahoma; font-size: 10pt;"> DeTomaso
[mailto:detomaso-bounces@poca.com] <b><span style="font-weight: bold;">On Behalf
Of </span></b>Charles Engles<br clear="none">
<b><span style="font-weight: bold;">Sent:</span></b> Sunday, February 09, 2014
4:16 PM<br clear="none">
<b><span style="font-weight: bold;">To:</span></b> michael@michaelshortt.com;
'Sean Korb'<br clear="none">
<b><span style="font-weight: bold;">Cc:</span></b> 'POCA list'<br clear="none">
<b><span style="font-weight: bold;">Subject:</span></b> Re: [DeTomaso] High
Ported Iron Closed Chamber 4V head flow results</span></font></div></div>
</div>
<div id="yiv9671637330yqt48742" class="yiv9671637330yqt4196101517"><div class="yiv9671637330MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;">Dear Michael,</span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;">
I *<b><span style="font-weight: bold;">think</span></b>* the example was that the
vanes act to minimize the air flow from layering out into laminar flow and
turbulent flow. I *<b><span style="font-weight: bold;">think</span></b>*
it keeps the boundary layer from becoming laminar.</span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;">
FWIW, Chuck Engles</span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
<div class="yiv9671637330MsoNormal"><font color="#1f497d" size="2" face="Calibri"><span style="color: rgb(31, 73, 125); font-family: Calibri; font-size: 11pt;"> </span></font></div>
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<div class="yiv9671637330MsoNormal"><b><font size="2" face="Tahoma"><span style="font-family: Tahoma; font-size: 10pt; font-weight: bold;">From:</span></font></b><font size="2" face="Tahoma"><span style="font-family: Tahoma; font-size: 10pt;"> DeTomaso
[mailto:detomaso-bounces@poca.com] <b><span style="font-weight: bold;">On Behalf
Of </span></b>michael@michaelshortt.com<br clear="none">
<b><span style="font-weight: bold;">Sent:</span></b> Sunday, February 09, 2014
5:57 PM<br clear="none">
<b><span style="font-weight: bold;">To:</span></b> Sean Korb<br clear="none">
<b><span style="font-weight: bold;">Cc:</span></b> POCA list<br clear="none">
<b><span style="font-weight: bold;">Subject:</span></b> Re: [DeTomaso] High
Ported Iron Closed Chamber 4V head flow results</span></font></div>
</div>
<div class="yiv9671637330MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;"> </span></font></div>
<div><font size="3" face="Times New Roman"><span style="font-size: 12pt;">Not sure
why the Jet engine was used as an example, those S shaped port directors in
those engines are designed to slow the air down by several hundred miles per
hour before it enters the jet engine.<br clear="none">
SST and SR71 did too.<br clear="none">
Why would you want to slow down your fuel air mix? Performance items like
Blowers and Superchargers are used to increase the speed and pressure to attain
greater performance. </span></font></div>
<div><font size="3" face="Times New Roman"><span style="font-size: 12pt;">I don't
get why that was an example.</span></font></div>
<div><font size="3" face="Times New Roman"><span style="font-size: 12pt;">Michael</span></font></div>
<div>
<div class="yiv9671637330MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">On Feb 9, 2014 6:47 PM, "Sean Korb" <<a href="mailto:spkorb@gmail.com" shape="rect" rel="nofollow" target="_blank" ymailto="mailto:spkorb@gmail.com">spkorb@gmail.com</a>> wrote:</span></font></div>
<div class="yiv9671637330MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">I'm not sure if this is germane but I am utterly fascinated.<br clear="none">
<br clear="none">
<a href="http://speedtalk.com/forum/viewtopic.php?t=4785" shape="rect" rel="nofollow" target="_blank">http://speedtalk.com/forum/viewtopic.php?t=4785</a><br clear="none">
<br clear="none">
<br clear="none">
On Sun, Feb 9, 2014 at 5:55 PM, Charles Engles <<a href="mailto:cengles@cox.net" shape="rect" rel="nofollow" target="_blank" ymailto="mailto:cengles@cox.net">cengles@cox.net</a>> wrote:<br clear="none">
> Dear Dan,<br clear="none">
><br clear="none">
><br clear="none">
> You wrote:
"....and shear vanes screwed into the intake port<br clear="none">
> floors."<br clear="none">
><br clear="none">
> For the amateur engine
builder, what are shear vanes?<br clear="none">
><br clear="none">
>
Very curious, Chuck Engles<br clear="none">
><br clear="none">
> -----Original Message-----<br clear="none">
> From: DeTomaso [mailto:<a href="mailto:detomaso-bounces@poca.com" shape="rect" rel="nofollow" target="_blank" ymailto="mailto:detomaso-bounces@poca.com">detomaso-bounces@poca.com</a>]
On Behalf Of Daniel C<br clear="none">
> Jones<br clear="none">
> Sent: Sunday, February 09, 2014 4:24 PM<br clear="none">
> To: POCA list<br clear="none">
> Subject: [DeTomaso] High Ported Iron Closed Chamber 4V head flow results<br clear="none">
><br clear="none">
> A while back, Dave McLain flowed a set of old iron closed chamber 4V heads<br clear="none">
> with the 1970's Pro Stock style high port exhaust plate and shear vanes<br clear="none">
> screwed into the intake port floors. I thought I'd share the
results.<br clear="none">
> Flowed on a Super Flow bench. Tested at 10" and converted to
28". 2.19"<br clear="none">
> intake valve and 1.71" exhaust. Completely stock combustion chambers.<br clear="none">
><br clear="none">
> Lift Intake Exhaust<br clear="none">
><br clear="none">
> Inch CFM CFM<br clear="none">
><br clear="none">
> 0.025 15.9 10.2<br clear="none">
><br clear="none">
> 0.050 33.2 28.5<br clear="none">
><br clear="none">
> 0.100 65.6 60.0<br clear="none">
><br clear="none">
> 0.150 100.6 89.0<br clear="none">
><br clear="none">
> 0.200 137.8 109.8<br clear="none">
><br clear="none">
> 0.250 167.6 124.1<br clear="none">
><br clear="none">
> 0.300 195.8 141.4<br clear="none">
><br clear="none">
> 0.350 224.0 155.4<br clear="none">
><br clear="none">
> 0.400 245.6 166.8<br clear="none">
><br clear="none">
> 0.450 261.4 176.7<br clear="none">
><br clear="none">
> 0.500 278.8 185.3<br clear="none">
><br clear="none">
> 0.550 289.7 194.7<br clear="none">
><br clear="none">
> 0.600 300.9 204.2<br clear="none">
><br clear="none">
> 0.650 312.1 215.2<br clear="none">
><br clear="none">
> 0.700 322.0 225.8<br clear="none">
><br clear="none">
> 0.750 325.7 234.4<br clear="none">
><br clear="none">
> 0.800 307.8 239.7<br clear="none">
><br clear="none">
> Not too bad for 1970's small block cylinder heads.<br clear="none">
><br clear="none">
> Dan Jones<br clear="none">
><br clear="none">
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><br clear="none">
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--<br clear="none">
Sean Korb <a href="mailto:spkorb@spkorb.org" shape="rect" rel="nofollow" target="_blank" ymailto="mailto:spkorb@spkorb.org">spkorb@spkorb.org</a> <a href="http://www.spkorb.org/" shape="rect" rel="nofollow" target="_blank">http://www.spkorb.org/</a><br clear="none">
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382<br clear="none">
"The more you drive, the less intelligent you get" --Miller<br clear="none">
"Computers are useless. They can only give you answers." -P.
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