Backdating heat in an 87 911 w/turbo

[baloo]

I'm moving the post from on I started yesterday at What are the differences in the Carrera vs 930 heat ducting (1984-89)?? .

I'm installing a stock 930 turbo system into my 1987 911 Carrera (HEs, J pipe, turbo, 1-in-2-out exhaust), and I want heat. I can see that I can't keep the Carrera heat blower or piping.

RarlyL8 started me off on some good info and pics in that previous posting.

I did roam thru Pelican's site and found some of the great stuff that is stored there -- especially a section called Diagrams.

I didn't find a Tech section detailing the backdating, and I ran thru a few dozen posts (searching "back dating, back date, backdating, backdate, and heat") and got bits and pieces only.

Question I now have is, to which year and model am I trying to backdate?

Also, does anyone have a parts list?

[Speedy Squirrel]

Referring to the diagrams is a great start. A 1987 model probably has the automatic heating system. Is this true in your case? It is identified by the rotary dial between the seats. You should also have the engine mounted blower, which you will of course remove, the footwell blowers (which you keep), and the front compartment blower (which you also keep). In addition you should have the temperature sensor in the dash. Was all this stuff working before the swap? If so, you are pretty much good to go for 1986-1989 Turbo. Just tell the Pelican phone order desk what you are doing, and they will hook you up with the heater hoses and the engine ducts that you need. Once you connect to the heater flapper valves everything is pretty much common between Carrera and Turbo for 1986 - 1989.

[baloo]

Originally Posted by Speedy Squirrel

A 1987 model probably has the automatic heating system. Is this true in your case? It is identified by the rotary dial between the seats. You should also have the engine mounted blower, which you will of course remove, the footwell blowers (which you keep), and the front compartment blower (which you also keep). In addition you should have the temperature sensor in the dash. Was all this stuff working before the swap?

Speedy,
Here is what I have in engine compartment and between the seats (see pics below). Yes, it has the rotary dial - auto heat. There is an engine mounted blower with plastic duct attached, but going nowhere. Because the the car came with headers and no HEs, I frankly do not know if the heat system was working. A blower sound (? foot and front blowers?) did come on when I messed with the impossible "German-logic" levers on the dash. I really wasn't interested at the time in checking the box out, and now that the battery is out of the car, I can't check the auto box (I'm wiring in oil cooler fans and doing other front trunk work).

Do I remove the auto heat box?

As you seem to be well-informed about this, by any chance do you have pics of how the ducting goes from the HE's on the topside of the engine? (I will have turbo piping and intercooler in the way). Rarlyl8 gave me some pics of what the underside routing would look like.

Thanks for the assist.

[Speedy Squirrel]

When you put your turbo on you will remove the heater blower:

Unplug electrical connector
Remove hose clamps
remove heater blower

Then you remove the heater blower pipe (the tube-shaped duct that goes from the blower outlet to the exhaust system heat exchangers

Then you will remove the heater blower duct (has the shell oil sticker on it) from the engine.

You will replace the heater blower duct with the turbo part 930 106 321 01

Connect back up to the flexible hose parts that came with the car.

All the interior controls are fine. Remove the fuse for the heater blower from the fuse panel

[baloo]

Thanks! Sounds do-able, and maybe easy (uh oh).
Tx