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)

[Trekkor]

I like it.

make a large flat "flask" that could be welded to the muffler with inlet and outlets.



And...If you do have a crack pipe, you really should put it down. (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)



KT

[SLITS]

coolant velocity in the system is a critical factor....move it slowly and the heat transfer will occur


though in reality, I think a mixture of crack and teuila will make you forget about the cold (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)

[TonyAKAVW]

What about coiling tubing around the exhuast? You could use some thin stainless steel tubing and coil it over a section of the exhaust piping and then do the same thing.

That might make it easier to install?

-Tony

[fiid]

it would work - but why not just do heat exchangers?

Water might be too efficient - you might run into problems boiling it with exhast gas temperatures.

[porschecb]

They must have some really GOOD crack in NJ! If you paid for it use it!!! (this was a shot) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

[TINCAN914]

QUOTE (trekkor @ Nov 9 2005, 05:24 PM)

I like it. make a large flat "flask" that could be welded to the muffler with inlet and outlets. And...If you do have a crack pipe, you really should put it down. (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) KT

(IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) Harsh...
Well I got a laugh from it.. Sorry..but.. (IMG:http://www.914world.com/bbs2/html/emoticons/chairfall.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/chairfall.gif) Ok I'm done now.

[Dr. Roger]

what's wrong with the stock setup? (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif)
aftermarket exhaust?

[East coaster]

No stock HE's, hence the quest for something different. I've thought about a gas heater, homemade HE and etc.... Just thought this may work and I had never seen anyone try it.

My setup is a 3.6 with Euro race headers..........

[Trekkor]

I think it really could work.

reminds me of my freshwater cooler on my old boat motor.


KT

[Dr. Roger]

buddies fresh water cooling setup used cold water intake and dumped the heated water in the lake/ocean. a recirculating system might run the temps way high. then how might you stop the heating process? stop the pump: boils water.

probably work as your are not going through the exhaust manifolds but the muffs. probably just have to experiment.

Now if you just ran air tubes thru an exhaust manifold with a flapper valve.... wait, that's a stock setup. (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

[ken914]

Nice idea,

I would like to see an AC system that acts like a heat pump. I.e., it can heat or cool.

[qa1142]

Don't use water, pick someting with higher boiling point. wrap headers with aluminum fuel line and pump away. I bet you could make it work.

Or give the engine to me, I don't drive in the winter (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

[andys]

Might I suggest you simply plumb in a small oil cooler, and use it as a heater core. Relatively slow to heat up in comparison, but the simplicity may be worth it??

Andys

[SLITS]

It really would be easier to go to your local sporting goods store and buy a case of Sterno. Light one or two and place on floor while driving......














It's been done, but I won't say by who or when. (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif)

[joea9146]

Sounds like it would work, just have to find a pump that could handle the hot fluid.

[East coaster]

Thanks for the replies. So far, it's seems about the right mix between smartass answers and real replies. I appreciate both!

As far as a pump is concerned, there are marine 12v water pumps used for hot water systems(showers,sinks, etc...) that have ratings high enough to handle 220 deg. There are also 12v water pumps made to eliminate the engine driven pump on HP engines, I know they would work but are probably overkill.

I was thinking a small heater core could be shoehorned into the fresh air box and create heat/def in a semi stock manner, without being hokey looking. Use stock fresh air fan, controls, etc... and with heat off it would still act as a fresh air system.

As far as an oil cooler solution, it seems to be the consensus of this board that it will not provide sufficient heat. I think a few folks have tried it unsuccessfully.

I honestly think a gas heater is probably the best solution, but a clean install could be a challenge and I think it would still have that unique smell depending on where you pull the cold air from.

[Kerrys914]

Best of luck but you will need a way increase the pressure in the system to keep the water from boiling. You don't want STEAM heat.

Don't for get a pressure safety valve. The pressure in the system will get VERY high when you stop the pump. You don't want to have the issue of hot fluid leaking in you car;)

I think once you really look into the issues with doing this you will walk away. There are better ways to get heat then to add an H2O system to your car.

Just my $0.02

[Kerrys914]

If you still want to make this work...It can happen but will take some real slick DIY.

Take a look at motorcycle parts. They are small and you can get them cheap from a junk yard. Small radiators, exp tanks, and cooling fans.
(IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)

[IronHillRestorations]

You'll probably spend more trying to rig up a hot fluid system, than if you got some GHL or B&B stainless headers with heat. I don't think I'd sell another set of B&B's though, they have problems with fit.

I personally don't think you'll get enough heat transfer to plumb a water system some 26 ft (round trip) and get enough heat to do much of anything.

Sell your headers and get some stainless heaterboxes. They will last longer than you will, never leak "coolant", and you'll be done with it. In the scope of any conversion project, if you need heat there isn't an easier way to go.