I made the heater tube modification on my vintage bypassing the transverse frame support and connecting the heater boxes directly to the hoses under the rocker panels and its well worth it. Am getting a faster and increased volume of warmer air even at lower speeds.The downside is that it is noiser but it gets quiet when you shut the heat off. I got the hoses, clamps and connecting tubing from Kirk at Vintage. I used cable ties to support the tubing away from the tires in the wheel wells.
Joel
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Joel,
I have not done this as of yet but will on my VS, try adding these baffles I don't think it will restrict the air flow all that much...Just may quiet it down some.
Photos?
I used silicone aircraft tubing that connects to the heater boxes and bypasses the frame. Great heat, good fit, won't melt.
I tries the VS tubing, but it melted at the heater boxes.
Cole,
i insulated the tubing somewhat from the heater boxes by using exhaust pipe reducers (2 and one half in. dia. to 2 and one quarter or 2 in. dia.) The tubing that Kirk sent me is orange and black ribbed. Hope it doesn't melt.
joel
If the tubing from VS does melt, try this:
http://www.aircraftspruce.com/...php?clickkey=1309216
It goes to 550 degrees plus. It's trouble free.
