<div dir="auto">Exactly. If we learn anything from being lifelong automobile enthusiasts its that EVERYTHING on a car is a compromise!</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 24, 2019, 1:46 PM <a href="mailto:mghirsch@netzero.net">mghirsch@netzero.net</a> <<a href="mailto:mghirsch@netzero.net">mghirsch@netzero.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>You also have to realize that factory specs are a compromise. They are trying to balance performance, mileage engine life and in modern cars, emissions. You can tune it for, let's say mileage, but performance will suffer. Conversely, if you tune it for performance mileage will suffer. Tune it the way you want it to run.<br><br>---------- Original Message ----------<br>From: Richard Lindsay via Mgs <<a href="mailto:mgs@autox.team.net" target="_blank" rel="noreferrer">mgs@autox.team.net</a>><br>To: <a href="mailto:Charley38@twc.com" target="_blank" rel="noreferrer">Charley38@twc.com</a><br>Cc: "<a href="mailto:mgs@autox.team.net" target="_blank" rel="noreferrer">mgs@autox.team.net</a> List" <<a href="mailto:mgs@autox.team.net" target="_blank" rel="noreferrer">mgs@autox.team.net</a>><br>Subject: Re: [Mgs] Timing discussion<br>Date: Wed, 24 Apr 2019 10:26:49 -0500<br><br>
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<div>Awesome Charley. No factory manual is going to adequately prescribe the right answer for your FrankenMGB. You must love engine building as much as do I.</div>
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<div dir="auto">R<br><br>
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<div class="gmail_attr" dir="ltr">On Wed, Apr 24, 2019, 8:41 AM Charley Robinson <<a href="mailto:Charley38@twc.com" target="_blank" rel="noreferrer">Charley38@twc.com</a>> wrote:</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">That comment, "Just advance the timing until you notice preignition." <br> has to be taken in the context of how much advance can you dial in <br> before it starts to ping under load. It's a rough attempt to dial in a <br> particular engine/fuel combination. I think most of us know the trial <br> and error method.<br> <br> To answer your question: My B engine is set at ~12* advance @ 850 - 900 <br> RPM with the vac disconnected. It pulls well through the midrange set <br> that way. But my engine kind of "parts is parts." It's a 18V block with <br> GH innards (flat -top pistons). All this topped by a pre-smog head and <br> HS-4 carbs. So I had to tweak it to get it to run the way I like it on <br> mid-grade gas.<br> <br> CR</blockquote>
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