<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[BMW M10 with Apfelbeck head, aka, the wizard head.]]></title><description><![CDATA[<p dir="auto">Ok, it's not actually referred to as the wizard head, but it did blow my mind the first time I stared at a picture of one of these motors.  Behold...</p>
<p dir="auto"><img src="http://i471.photobucket.com/albums/rr75/inline39/1966BMWFormula2ApfelbeckM10EngineviaClassicandVintageBMW2.jpg" alt="1966BMWFormula2ApfelbeckM10EngineviaClas" class=" img-fluid img-markdown" /></p>
<p dir="auto">No, its not a V8.  Yes, it is a 4 cylinder with a 16V head that has 8 velocity stacks, and 8 header pipes.  Its called the Apfelbeck head.  The exhaust and intake valves are across from one another as opposed to being next to each other (read the below articles, because explaining it with words doesn't help much).  This helps swirl the intake charge for better combustion.  BMW motors like this one were used in the 70's in forumula 2 and hillclimbs.  BMW motors paired with March chassis did very well in the 70's, winning 4 championships.  I am uncertain if the Apfelbeck head was a championship winning design, but it was present during this period of BMW greatness.  </p>
<p dir="auto">Check out this site for some info. <a href="http://touringmm.blogspot.com/2011/07/apfelbeck-zylinderkopf.html" rel="nofollow ugc">http://touringmm.blogspot.com/2011/07/apfelbeck-zylinderkopf.html</a>.  But this next site helped me visualize the design better, even though it's not an Apfelbeck, the principal is similar <a href="http://www.speedhunters.com/2013/02/the-triflux/" rel="nofollow ugc">http://www.speedhunters.com/2013/02/the-triflux/</a>.</p>
]]></description><link>https://wibimmers.com/topic/1703/bmw-m10-with-apfelbeck-head-aka-the-wizard-head.</link><generator>RSS for Node</generator><lastBuildDate>Wed, 16 Sep 2026 06:38:14 GMT</lastBuildDate><atom:link href="https://wibimmers.com/topic/1703.rss" rel="self" type="application/rss+xml"/><pubDate>Thu, 25 Jul 2013 12:24:45 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Sun, 28 Jul 2013 16:09:45 GMT]]></title><description><![CDATA[<p dir="auto">the cylinder head casting mold would probably cost in the $10,000 range.</p>
<p dir="auto">after the mold is ready, a cast unit would likely cost about $500</p>
<p dir="auto">Machining would be another $500.</p>
<p dir="auto">Then you still havent even gotten into the development of the cam and rocker assemblies. </p>
<p dir="auto">So what I am trying to tell you is, I should have one up and running in my car by morning.</p>
]]></description><link>https://wibimmers.com/post/25997</link><guid isPermaLink="true">https://wibimmers.com/post/25997</guid><dc:creator><![CDATA[B C]]></dc:creator><pubDate>Sun, 28 Jul 2013 16:09:45 GMT</pubDate></item><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Sun, 28 Jul 2013 14:27:20 GMT]]></title><description><![CDATA[<p dir="auto">Snap, aren't you an engineer of sorts? Start drawing up some designs and get these babies on the market!</p>
]]></description><link>https://wibimmers.com/post/25990</link><guid isPermaLink="true">https://wibimmers.com/post/25990</guid><dc:creator><![CDATA[Ryan...]]></dc:creator><pubDate>Sun, 28 Jul 2013 14:27:20 GMT</pubDate></item><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Thu, 25 Jul 2013 18:11:54 GMT]]></title><description><![CDATA[<p dir="auto">Wow that is kick ass!</p>
]]></description><link>https://wibimmers.com/post/25918</link><guid isPermaLink="true">https://wibimmers.com/post/25918</guid><dc:creator><![CDATA[need4speed1299]]></dc:creator><pubDate>Thu, 25 Jul 2013 18:11:54 GMT</pubDate></item><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Thu, 25 Jul 2013 16:03:01 GMT]]></title><description><![CDATA[<p dir="auto">That Lancia is pretty slick as well. I would give anything to be behind the wheel of a vehicle with one of these=)</p>
]]></description><link>https://wibimmers.com/post/25912</link><guid isPermaLink="true">https://wibimmers.com/post/25912</guid><dc:creator><![CDATA[Earl]]></dc:creator><pubDate>Thu, 25 Jul 2013 16:03:01 GMT</pubDate></item><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Thu, 25 Jul 2013 15:34:23 GMT]]></title><description><![CDATA[<p dir="auto">Wow! Just when I thought I had seen every 70's-80's aftermarket performance part, you go ahead and post this. I need to find some video footage of it in action!</p>
]]></description><link>https://wibimmers.com/post/25911</link><guid isPermaLink="true">https://wibimmers.com/post/25911</guid><dc:creator><![CDATA[B C]]></dc:creator><pubDate>Thu, 25 Jul 2013 15:34:23 GMT</pubDate></item><item><title><![CDATA[Reply to BMW M10 with Apfelbeck head, aka, the wizard head. on Thu, 25 Jul 2013 13:45:24 GMT]]></title><description><![CDATA[<p dir="auto">This thing must sound marvellous!</p>
]]></description><link>https://wibimmers.com/post/25909</link><guid isPermaLink="true">https://wibimmers.com/post/25909</guid><dc:creator><![CDATA[Earl]]></dc:creator><pubDate>Thu, 25 Jul 2013 13:45:24 GMT</pubDate></item></channel></rss>