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Old 11-06-2005, 05:44 PM
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hot air intake

I've got a carbed '87 mustang that I'm planning on driving through this winter to work every day. It currently has an open element air cleaner on a holley 650DP carb. I know from the factory most carbed cars had a stove off a manifold to provide warm air until the engine got good and hot. I'm thinking of making a duct to send hot air from my headers to my air cleaner... would it be ok to run the hot air pernamently until springtime? Would this help with driveability and fuel economy?


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Old 11-06-2005, 06:56 PM's Avatar
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I have always made my hot air (winter setup) from a closed side air cleaner (duct tape and light cardboard around an open side filter in one case). Then run VW beatle style aluminum flex tubing to a fabricated small box mounted over the center exhaust header tubes, close to the head.

This has saved my donkey a few times in the fall when the humidity gets to be about 90+ percent and the temp gets down to low-mid thirties.

Without it carburetors torn into large snowballs. The throttle plates freeze solid and you slowly choke a rich engine that won't shut off. Then dumps large amounts of water into the intake when it thaws.
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Old 11-07-2005, 02:19 AM
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This earlier 5.0L setup will give you heated and outside cool air.

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