Our atmospheric pressure here near the Great Salt Lake is about 15% lower than at sea level. Therefore the area of the holes in your new jets should be about 15% less than sea level jets. Since area of circles depends on the square of the radius or diameter, the jet size, (diameter) should be about the sq. rt. of 0.85 times the old jet diameter or 0.93. Suppose your sea level jet is 120 thousandths or 1.2 mm in size. You should put in 110 thousandths or 1.1 mm jets. This is at least a good place to start. Remember the higher you go, the less fuel you can burn and the slower your LBC will be. Aaaargh.<div>
Bruce O.<br><br><div class="gmail_quote">On Mon, Oct 8, 2012 at 9:41 AM, Hugh Larratt-Smith <span dir="ltr"><<a href="mailto:Larratt@trimingham.com" target="_blank">Larratt@trimingham.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">Hi, our mechanic is installing a new Weber carb on our 1977 MGB in Palm Beach Florida this week, and I want to make sure the air-fuel mixture is right for our Wasatch Range climate.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">Any suggestions?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">Thanks <span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></span></p>
<span class="HOEnZb"><font color="#888888"><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#9c9f29"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#7030a0">Hugh Larratt-Smith<u></u><u></u></span></p>
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