NickDG 23 #26 May 11, 2010 Harley V-Twins are about the only air-cooled vehicle motors not equipped with baffled cooling systems. All the Cessna piston aircraft use them and so did older Volkswagens. One could install some type of ram-air induction ducting to cool a Harley's rear cylinder but then, ironically, you'd lose the cool factor . . . NickD Quote Share this post Link to post Share on other sites
davelepka 4 #27 May 11, 2010 QuoteOne could install some type of ram-air induction ducting to cool a Harley's rear cylinder but then, ironically, you'd lose the cool factor . . . Instead you increase the cool factor (and decrease the cooling factor) by mounting a carb and big aircleaner upwind of the cylinder on one side, and a coil upwind on the other, and forward controls to make sure your legs block any additional wind that might have made it to the cylinder. Thank god for the wide open spaces and high speed open roads of the USA. The relatively low power out per cubic inch doesn't hurt either. Quote Share this post Link to post Share on other sites
