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	<title>Intake Manifold Science</title>
	<link>http://www.maxa1.com</link>
	<description></description>
	<lastBuildDate>Sun, 18 Dec 2011 20:38:37 +0000</lastBuildDate>
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		<title>Intake Manifold Science</title>
		<description><![CDATA[How the mixture gets from the carburetor to the combustion chambers may be more significant than you imagined.
We all know the fact that air passage through a carburetor mixes air and fuel in some proportion for combustion. But what hasn&#8217;t been talked about is the fact that there are mixture conditions from carburetor to engine [...]]]></description>
		<link>http://www.maxa1.com/2010/04/14/hello-world/</link>
			</item>
	<item>
		<title>Carburetor That Delivers</title>
		<description><![CDATA[Most stock engines are fitted with a single carburetor that delivers fuel based on &#8220;average&#8221; intake manifold flow signals, so it stands to reason that some cylinders will receive more or less fuel than others (depending upon how correct the intake manifold design may be). And since most factory intake manifolds are of the two-plane [...]]]></description>
		<link>http://www.maxa1.com/2010/04/14/carburetor-that-delivers/</link>
			</item>
	<item>
		<title>Changes in Direction</title>
		<description><![CDATA[Any increase in velocity will also increase kinetic energy of air and fuel, making it difficult for both to navigate changes in direction from carburetor to combustion chamber. So what we have is sort of a seesaw effect. Fuel can be more easily suspended in air if both are moving rapidly, but it&#8217;s difficult to [...]]]></description>
		<link>http://www.maxa1.com/2010/04/14/changes-in-direction/</link>
			</item>
	<item>
		<title>Relationship between an intake manifold</title>
		<description><![CDATA[ Most all intake manifolds for V-type engines (noncompetition variety) have a passage connecting a port (in each head) leading to an exhaust port. This allows exhaust gas to heat the lower portion of the manifold, usually just below the plenum chamber. But what you might not have considered is the fact that this isn&#8217;t [...]]]></description>
		<link>http://www.maxa1.com/2010/04/14/relationship-between-an-intake-manifold/</link>
			</item>
	<item>
		<title>Exhaust review</title>
		<description><![CDATA[In goes the good air, out goes the bad—or maybe it&#8217;s just the opposite. now, it&#8217;s exhaust system fundamentals
Suppose we review all this stuff for a minute. Thus far, we&#8217;ve examined the passing of air and fuel into an engine&#8217;s combustion chamber(s) and what takes place during combustion. There has also been some discussion about [...]]]></description>
		<link>http://www.maxa1.com/2010/04/15/exhaust-review/</link>
			</item>
	<item>
		<title>Gas Flow Inertia</title>
		<description><![CDATA[Valve overlap. (Stay with us. This all gets back to the exhaust system in a couple of paragraphs.) For optimum engine performance, it has long since been found that intake and exhaust valves should not be opened and/or closed exactly at top and bottom dead center. Gas flow inertia (resistance to movement and changes in [...]]]></description>
		<link>http://www.maxa1.com/2010/04/15/gas-flow-inertia/</link>
			</item>
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		<title>Volumetric Efficiency</title>
		<description><![CDATA[There&#8217;s a little chart included that typifies this engine speed vs. gas flow velocity. And a few extra minutes spent in understanding this relationship would be time well spent. You&#8217;re gonna hear about it again and again. Because it works.
And finally, we&#8217;d like to refer to a term first introduced in an earlier Shop Series: [...]]]></description>
		<link>http://www.maxa1.com/2010/04/15/volumetric-efficiency/</link>
			</item>
	<item>
		<title>Blowdown Inefficiency</title>
		<description><![CDATA[The addition of a No. 2 tomato juice can on the end of the single exhaust pipe increases the amount of torque produced below 3200 rpm, leading us to believe that such a &#8220;collector&#8221; affects low-rpm torque more than high-rpm torque. And it does.
Decreasing the length of the single exhaust pipe does not change the [...]]]></description>
		<link>http://www.maxa1.com/2010/04/15/blowdown-inefficiency/</link>
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