Posted by Janicholson on April 01, 2013 at 16:12:03 from (74.60.94.18):
In Reply to: Cold manifold??? posted by Elvin Frank on April 01, 2013 at 15:47:05:
Propane evaporates in above zero weather and needs no Heat. Gasoline needs a bit more heat in moderate weather to 50 degrees or so especially when high humidity can make frost both on, and inside the carb and manifold. Keeping the air cool or cold, makes it more dense, and thus more of it. this makes more power (assuming good vaporization of the gasoline). Were it mine, I would put an exhaust "heat stove" on it for cold operation feeding warmed air into the air cleaner. Carbureted cars of the 70s and later had them on the exhaust manifold with a tube to the intake snorkel. Almost all piston and carb based airplanes have them to prevent carb icing. A stove pipe with standoffs around the muffler, with a flex pipe to the intake where the pre cleaner attaches, works well, and can be removed in the warmer drier weather. That manifold will make a bit more power. Jim
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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