Take shots at this idea......, I'm sure there's something wrong with it Options

[East coaster]

So, in the quest for some sort of damn heat/defroster I was curious if this could work.

In the really sh*tty diagram below, a coolant recirculation system that cycles coolant through the muffler to transfer heat from exhaust to coolant so it can be used with a heater core to supply heat/defrost.

I would expect that the tubing passing through the muff would need to be more than a simple tube and more likely an array of small tubes in parallel to better transfer heat.

Is this feasible or should I gently place the crack pipe down and call for help (IMG:http://www.914world.com/bbs2/html/emoticons/smoke.gif)

[Dave_Darling]

QUOTE (JOHNMAN @ Nov 10 2005, 10:51 AM)

You probably only need one heat exchanger. My stock 1974 2.0 only has an aux. blower ducted to the driver side.

While the heater blower is only connected to the driver's side, the engine cooling fan is connected to both sides. They both do contribute to the heat.

The 70-72 cars had a centrally-mounted fan with two outlets. 73-74 had the fan on the driver's side with a single outlet; 75-76 had the side-mounted fan with a splitter on the outlet.

The original Sixes (and all 911s up into the 70s at least!) had no heater blower at all. All warm air came from the engine cooling fan and was then pushed into the heat exchangers.

BTW, several very experienced 914-6 conversion people have said that the quality of the currently available aftermarket 914-6 exchangers is less than stellar. I know at least one who has told me that he will only use stock exchangers, or headers--period. No more aftermarket exchangers at all for him.

--DD