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CFD CFD is offline
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Identification help needed fellas...'76 930

Can anyone tell me what these two "connections" are for?

Inside the car behind left seat (passenger seat over here, drivers seat over there):



Underneath the car:

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'76 911 Turbo
Old 12-05-2014, 12:42 PM
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Looks Non-Factory to me. Prob a previous owner using them [2-holes] to fish wires. Obviously, they have been cut off under the car, right?

You'll have to track where they go in the inside. Prob work their way to the front under via the center of the car [shifter tunnel]. and, remove them...
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Old 12-05-2014, 02:44 PM
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Was the car ever equipped with an adjustable boost controller?
Old 12-05-2014, 02:45 PM
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Quote:
Originally Posted by OSI930 View Post
Was the car ever equipped with an adjustable boost controller?
Not that I am aware....previous owner never mentioned it. No evidence anywhere else to suggest anything like that fitted.....

Does look non factory from inside alright....yes, cut off under the car.
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Old 12-05-2014, 03:09 PM
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Aux heat?
Old 12-05-2014, 03:33 PM
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I'll have a look at mine.................
Old 12-05-2014, 03:53 PM
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Nothing at all like that in my car?

I think my car had every option in 76?
Old 12-05-2014, 05:02 PM
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Thanks Luke...I will trace the wires into the car and see where they go, but certainly from the inside they look non standard....more like plumbing fittings!

IMR-Merlin......you mean for an engine bay blower? Unlikely perhaps as the auto heat was removed and heating back dated to manual at some point in the cars previous life....
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Old 12-06-2014, 08:54 AM
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No, like a gas auxiliary heater. I had one in my 930 under the left front seat. It also had a vintage 12 hour time in the glove box. You would set the time for up to 12 hours in advance and when the timer went off, it would fire up a GASOLINE heater to get the car interior up to temp. The heater was removed from my car before I owned it, but the timer and the holes under the seat were still there.
Old 12-06-2014, 09:24 AM
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Ah, interesting, yes, heard of those alright. I will do some tracing on the wires anyway and see what comes of it. Thanks...


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No, like a gas auxiliary heater. I had one in my 930 under the left front seat. It also had a vintage 12 hour time in the glove box. You would set the time for up to 12 hours in advance and when the timer went off, it would fire up a GASOLINE heater to get the car interior up to temp. The heater was removed from my car before I owned it, but the timer and the holes under the seat were still there.
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Old 12-06-2014, 10:31 AM
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Quote:
Was the car ever equipped with an adjustable boost controller?
That's my guess.
Old 12-06-2014, 12:54 PM
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Close enough to the pump to suggest something to do with fuel?
Old 12-06-2014, 12:56 PM
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dies ist Standheizungen
Old 12-06-2014, 01:04 PM
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Quote:
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dies ist Standheizungen
For a heater you reckon?

Here is a better pic showing the tubes - the one that isn't cut follows along the tunnel and goes up under the dash. Need to drop the AC vents bolted on under the dash to track it to its end. Just had an ankle operation so have to wait a few weeks before I am up to crawling about in the footwells to find the end.

I don't see any sign on the dash/engine bay of an adjustable boost controller....but who knows what could have been done I suppose...is this the kind of plumbing that is used for a boost controller?


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Old 12-07-2014, 06:32 AM
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I'm still going with a gasoline heater.
Old 12-07-2014, 06:56 AM
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Boost controller has a vaccum bleed line to the knob under the dash and a switch to over ride the fuel cut off.

You have lines and a wire... That's what you need. The lines would have gone to your wastegate.
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Old 12-07-2014, 07:54 AM
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Looks just like my ex dial a death.
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Old 12-07-2014, 08:10 AM
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Not sure 76 had a fuel cut off for over boost?

I'm going with gasoline parking heater given your climate.
Old 12-07-2014, 11:50 AM
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Eberspacher Gas Heater
There is another brand as well, can't think of it at the moment.
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Old 12-07-2014, 10:35 PM
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Quote:
Originally Posted by wildturkey View Post
Not sure 76 had a fuel cut off for over boost?
According to the Porsche PET for 76-77 Turbos, they did come with an overboost switch (cuts the fuel pump circuit ground at a certain bar - around 1.2bar for 3.3l engines but don't know for 3l models).

Page 35, item #24 is the overboost switch -

http://www.porsche.com/all/media/pdf/originalparts/en/E_911T_KATALOG.pdf

Old 12-07-2014, 11:12 PM
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