<div dir="ltr"><div class="gmail_default" style="font-size:small">I found the opposite response with my CD175 Strombergs. If the piston rises too quickly the venturi effect is reduced and adequate fuel is not drawn through the jet causing a lean mixture. I use marvel mystery oil.</div><div class="gmail_default" style="font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 24, 2020 at 3:19 AM Rocky Entriken via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div>Re Oil:</div>
<div>
<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline">I
once did a race at Woody Creek Raceway, Aspen, CO (8000 feet) and could not get
the car to rev over 5000 rpm. A friend diagnosed the problem ... got out his
wire cutters and snipped the posts off the rods in the SU caps. Never had a
problem again! </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline"> </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline">He
about gave me a heart attack when he did it. Thing is, the purpose of the oil in
the SUs is to retard the piston going up and down, mostly up. It was explained
to me, you don’t WANT to retard the carb piston on a race engine. You hit the
gas you want it WOT. RIGHT NOW! Street car, sure. Race car, no. </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline"> </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline">But
a tip: Clean the inside of the carb, piston & cylinder, regularly. Before
each race. Brakleen. Fuel residue will gum it up if you don’t. </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline"> </div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline">--Rocky</div></div>
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<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline"> </div></div>
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<div style="background:rgb(245,245,245)">
<div><b>From:</b> <a title="fot@autox.team.net">Henry
Giffin via Fot</a> </div>
<div><b>Sent:</b> Tuesday, November 24, 2020 12:58 AM</div>
<div><b>To:</b> <a title="fot@autox.team.net">fot@autox.team.net</a> ; <a title="fot-bounces@autox.team.net">fot-bounces@autox.team.net</a> </div>
<div><b>Subject:</b> [Fot] SU oil/refurbishing race suit?</div></div></div>
<div> </div></div>
<div style="font-size:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);font-style:normal;display:inline">
<div class="gmail-m_-3160393410014083921WordSection1">
<p class="MsoNormal"><span style="font-size:14pt">FOTs, I have two questions for
the knowledgeable ones.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt"> Do you use
light oil in your SUs on your racing engines? I have heard both sides of
this. I have not been using any oil, but have heard from friends I should
be. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt"> A
number of years ago when my son-in-law started racing we sent my old racing suit
to someone to be refurbished. It came back in great condition. My
current suit could use some work. We lost the name of the company who did
the work. Can anyone recommend a source for refurbishing my
suit?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt">
Thanks, Hank<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt"><u></u><u></u></span> </p>
<p class="MsoNormal">Hank Giffin<u></u><u></u></p>
<p class="MsoNormal">757-375-1491<u></u><u></u></p>
<p class="MsoNormal"><u></u><u></u> </p></div>
<p>
</p><hr>
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