I need heat in 911 with headers

[RACING PORSCHE]

I have a 1980 911 with headers and i'm moving north. Any ideas on a heater for this situation?
Thanks

[Jesset100]

not mine but good idea

[911Velocity]

Originally posted by RACING PORSCHE
I have a 1980 911 with headers and i'm moving north. Any ideas on a heater for this situation?
Thanks

Buy a set of SSIs and switch for winter. That's what I do. Sorry no other help that I've found.

Gerry

[WydRyd]

I have the above oil cooler heat exchanger (bought from Protomotive). Works well with the kick panel blowers drawing in a steady stream of warm air (once the motor settles at normal/steady operating temps). Better than nothing!

Not too sure how well it would work in sub-zero climates though

[A Quiet Boom]

Would the oil cooler setup work well enough for keeping fog off the windows on cool autumn and spring nights? I'm putting Bursch headers on the track car and was thinking of using an RV heater in the front truck, this looks alot lighter.

[WydRyd]

Originally posted by A Quiet Boom
Would the oil cooler setup work well enough for keeping fog off the windows on cool autumn and spring nights? I'm putting Bursch headers on the track car and was thinking of using an RV heater in the front truck, this looks alot lighter.

Not really effective at doing this, because it takes time to draw warm air into the cabin (I'd say 15 min). The engine oil has to be at "normal" operating temps before it'll really start working well enough and the car has to be moving for the air to circulate sufficiently.

I was thinking of perhaps fitting an extra pair of auxiliary blowers earlier in the duct path, to get the air moving faster.

[jwernquist]

There where a few people talking about this. Might want to search the forums as I dont remember the actual thread however. You can have small boxes welded to the Headers. Talk to Ben at MK Exhaust he and I were talking about doing this with my headers. It would be pretty easy . However it would not be super heat it would probably just help with the cold!

[randywebb]

Webasto heater in front?

[jwernquist]

Heheh I actually have a couple of those from some VW Things. They kind of scare me.

[A Quiet Boom]

Originally posted by WydRyd
Not really effective at doing this, because it takes time to draw warm air into the cabin (I'd say 15 min). The engine oil has to be at "normal" operating temps before it'll really start working well enough and the car has to be moving for the air to circulate sufficiently.

I was thinking of perhaps fitting an extra pair of auxiliary blowers earlier in the duct path, to get the air moving faster.

I'm talking about driving on cool damp days after the car has warmed up, I get fog on the inside of the windows. I figure a gentle stream of moderately warm air might fix it. I don't drive the 911 in the winter so no need for real heat.

There was a thread a while back on this wherein I suggested the RV heater.

[jluetjen]

Guys, just get a set of SSI's or factory early style heat exchangers. How many HP do you really think that you're getting using the headers over the stock early style system? Especially for street use. This poses an interesting set of questions, many of which can be answered by people on this BBS since most of us have parts laying around.

1) Weight of the factory (early style) exchangers?
2) Weight of SSI's?
3) Weight of headers + welded on heater boxes
4) Weight of headers + auxilary heater such as a Webasto.

I'm not sold on the oil-heater thing given how long it takes to become really effective. Also keep in mind that on cold day, the engine doesn't get as warm, so it will take longer and longer to get any sort of heat out of the system. This isn't particularly helpful if you're trying to de-mist the windshield with the sun in your eyes during a morning commute.

[mb911]

SSIs are the only way to go. what displacement are you deeling with??

[Formerly Steve Wilkinson]

I'm not understanding what SSIs have to do with it. I have SSIs, and they're "headers." They have no heat muff.

I blocked off the left side of the air shroud and installed a stock outlet on the right side. Hot air flows from there to a tee about 10 inches away, and from the tee to the right and left heater valves. I also installed kick-panel blowers, which I rarely use.

Works fine for the situation you're talking about--moderate winter temps. (I live inthe Hudson River Valley but stop driving the car when it starts to snow.)

[914efi]

Steve,

So your heated air does not go through any heat exchanger, just warmed from being over the engine?

I have the same need as you, just a bit of warmth for cooler days. Last winter (my first) I drove on a few dry but cold days and the toes got numb! This winter I'm doing head studs and planned to add SSIs, but if this works it will save some $$.

[mb911]

Originally posted by Formerly Steve Wilkinson
I'm not understanding what SSIs have to do with it. I have SSIs, and they're "headers." They have no heat muff.

I blocked off the left side of the air shroud and installed a stock outlet on the right side. Hot air flows from there to a tee about 10 inches away, and from the tee to the right and left heater valves. I also installed kick-panel blowers, which I rarely use.

Works fine for the situation you're talking about--moderate winter temps. (I live inthe Hudson River Valley but stop driving the car when it starts to snow.)

steve no offense but not sure if you are understanding that there are stainless steel headers(which get confused with ssis brand) or ssi which is an early pre 74 style heat echanger made by john daniels of stainless systems inc which has a heat muff around it just like the factory did but better with an optimized equal length header inside. visually they look just like the early exchanger but look much higher quality.

I could be wrong but thats what your explaination says to me.

[Formerly Steve Wilkinson]

No offense taken! I didn't know that's what SSIs were. I thought I had SSIs, which in my case are simply stainless-steel headers...

[gestalt1]

how about having an upholstery shop add electric seat heaters? also, windows fogging up is caused from warm humid air from the passengers condensing on the inside of the windows. if outside air is ducted directly to the defroster vents i would think this wound reduce the fog. this would be cold air but it would work and the seat heaters might be enough buy themselves. there is also that rain-x anti fog stuff that might help.

[Formerly Steve Wilkinson]

I use simply cold air for windshield defrosting. Works fine.

[JeremyD]

SSI or B & B Headers - the make B & B with heat exhangers or without.

[Jgordon]

Where are you moving? I have a B&B setup lying around that I'd sell you. heat worked great when I had it on the car.