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<P>I'm sure that others will comment but here's my setup. </P>
<P>OS 160FX, Perry Pump, fuel tank on CG, Karl Mueller header, MAC's 1092 pipe (15 - 20 cc FAI Quiet Pipe), pipe lengthened about 200 - 300 RPM off peak, 15% Magnum fuel, OS F plug, 17x12 std. 2 blade APC, Sealed SS Bearings. </P>
<P>This setup needs to run close to peak lean otherwise it will load up and go rich in flight. Turns 8200 -8400 RPM OTG and is an absolute stump puller in the air. Fair braking on the down lines, I'm sure it's not as good as a 3 blade prop but the 17x12's are a LOT cheaper!! </P>
<P>I have this setup in two different planes, and Entropy and an Aries. In both cases the engines run great and so far have been trouble free.<BR></P>
<DIV class=signature id=signature>--<BR>Gene Maurice <BR>AMA 3408 NSRCA 877 <BR>Plano, TX <BR>gene.maurice@comcast.net</DIV><BR>
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<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>Would someone send me a chart detailing the different pipe options that I could use with an OS 140 and 160? For instance - </FONT></SPAN></DIV>
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<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>Manufacturer Model Cost Weight </FONT></SPAN></DIV>
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<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>Grieves</FONT></SPAN></DIV>
<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>MAC</FONT></SPAN></DIV>
<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>OS</FONT></SPAN></DIV>
<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>etc ...</FONT></SPAN></DIV>
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<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>I have a Focus II coming and need to order an engine. Does anyone know where I can find one? I understand that the retailers are out of stock. Also, of the various props, 17X12, 16X14, 3 bladed, etc., which one gives the best downline braking? Last question is about the header options, what are the costs and sizes of the various ones on the market. When I ran the OS 140 in 1997 I used a Mac header with an extension tube and a MAC tuned piped But if I recall correctly it was a .20 size pipe to simply act as a muffler. I detuned the engine so that it turned an APC 16X13N at 8100. Even that was a bit fast for the plane, a Steve Stricker Excalibur II, which was a big plane at the time. All help is appreciated. </FONT></SPAN></DIV>
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<DIV><SPAN class=494073914-06082004><FONT face=Arial color=#0000ff size=2>Thanks, Rich</FONT></SPAN></DIV>
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