Fixed rear quarter window?

Redlineshftr · 11-17-2005, 09:19 AM

Im debating, before I fix the brackets, if i should just convert to fixed rear quarter windows. How would I go about doing this? Would I need new windows that are smaller? Open to opinions

Mike

Andras Nagy · 11-17-2005, 09:27 AM

Hi Mike,

If you are going to do this conversion, I'll swap you my fixed 1983 SC windows (great condition) for your operable windows (all hardware included). I don't have any A.C. anymore, and I want the positive ventilation that operable windows give. My 1974 had them, and I miss them when Porsche AG put fixed windows on all A.C. coupes.

Yes, you'll need all new windows and rubber, including the lip on the bottom. But with this swap, I would send you everything you need, but then again, I doubt that my SC windows will fit in your 1970 T frames.

Oh well.

Redlineshftr · 11-17-2005, 08:48 PM

If they do happen ot fit, which I also doubt, I would be willing to trade. I am also considering going plastic in hte back because im going to start autoxing in the near future. But, I am afraid it would look cheesy ot have just the rear windows plastic... anyways If anyone knows if they fit or are close pm me.

poorsha · 11-17-2005, 09:09 PM

I see no reason why they wouldn't fit.
Don't forget that the SC will have black trim, not silver.
My 74 has fixed windows along with some other weird things.

Redlineshftr · 11-19-2005, 07:01 AM

Thats another thign that i've realized, does anyone happen ot have a picture of fixed backs on an early p-car with silver trim? I dont think that the black trim would look too goofy. My car is black anyways.

poorsha · 11-19-2005, 07:19 AM

Here is my 74:

Wil Ferch · 06:34 PM

Understand that the window ( glass) for the pop-outs are physically smaller ( by a very small amount)..and that there are other trim pieces that need to be swapped to make the conversion work. I'm going from fixed to pop-outs later this year...and a thread by TRE-Cup is a worthwhile search.....

Wil

island911 · 11-19-2005, 12:47 PM

THE B-PILLAR IS VERY DIFFERENT!

I just went thru this.

Putting pop-outs in an SC (or newer) means some significant mod's to the B-Pillar.

Apparently, with the SC, Porsche decided to strengthen the B-pillar. The SC has an added, welded-in L-bracket (or perhaps its a U-bracket)

Also, a few of the trim mounting holes are in different places. And, you will have to cut slots, in the B-pillar, for the hinge hardware.

I'll post some picts later.

Putting fixed SC windows into an early car seems to be easy.

PcarPhil · 11-19-2005, 03:25 PM

island911,

I look forward to your pics as I'm thinking about doing this to my SC in the near future.

Thanks!

island911 · 07:59 PM

First, here are the two lower trim pieces. The wider one is for the early cars w/ popouts.

Close up of the ends (note extra hole and different locations.

(I think that one would mod the trim, rather than drill another hole in their car. YMMV)

Now the big stuff

Heres the SC B-pillar. (drivers side, looking fwd)

top of the pillar, interior trim rolled back...

That whole channel needs to be removed.

Heres an early car B-pillar . . . note the slot for the hinge.
(passenger side, here; looking fwd)

zoom

Wil Ferch · 01:48 PM

Well that's just great !!!

I was "banking" on the tech write up by TRE-Cup to be the definitive answer. If so...it then appears to work only for the pre-SC's...

Link--> Rear quarter window Modification

Mine's an '85...now what? Surgery like Island911 says..or "easy" like TRE Cup says?

Wil

island911 · 11-19-2005, 07:55 PM

the tech write up by TRE-Cup does address this . ..

Quote:

3) spot weld drill/ or steady hand and sharp drill bits to remove the vertical thin flange covering the slots on the b pillar. After drilling the spot welds, then pry off this flange on each side.

SO, "how easy is the Sx?" . .. I think that it would be easy . .. on someone elses car.

Seriously, I couldn't do it. I figured a work-around, to get out of drilling holes in the body, for the trim. (potential rust starters) But slicing off a structural member . . .that just made me cringe (Mechanical Egr, here)

Also, reading aout some who hope to add ridgity to an early 911 by using fixed windows raise an eyebrow.

. . .the grass is always greener on the other side.

PcarPhil · 11-20-2005, 04:50 AM

Thank you for the pics and the writeup. I was afraid this mod wasn't a simple bolt-in for a SC.

Wil Ferch · 09:38 AM

TRE cups's description is therefore deceptive...a "thin" piece to drill spots welds out of...is not the same severity that your pictures show....

I feel strangely mislead about this whole thing.... NOW that I bought the pop-out windows ..

Wil

Wil Ferch · 11-20-2005, 12:02 PM

Island911:

Another question... you say the slots have to be cut for the later cars...TRE Cup says that once the "thin flange" is removed...the slots are already there ????

How many more discrepencies ( variations?) are we going to find ?

- Wil

island911 · 11-20-2005, 04:11 PM

Slots -That could be a bad assumption on my part. (they may exist under the U-bracket . . . when I posted I didn't remember if it was an L or U)

one other thing to look out for.. Some latch brackets have thick spacers . . .some have thin. (per John Walker . .. when I found, on a call at his shop, some window latches mounted differently, on thick "gaskets")

Hand built cars, you know. I imagine Hans (or Franz) with an assortment of spacers, getting the right fit for each car.

Andras Nagy · 11-21-2005, 03:40 AM

Having thought of doing this on my 1983, to match my former 1974 pop-outs, I have checked and my car does have the two holes for the hinge on the B pillar. At least I can feel the small depressions under the leather (yes, leather) on my B pillar.

Wil Ferch · 11-21-2005, 04:42 AM

OK.... now I'm really confused.

I understand that the leading edge of the pop-out windows have "tabs" that ( I thought) simply engage into the B-pillar "slots".

Hinge? Bolt holes for hinge ( also shown in your pics) ?? What hinge?

I printed out most of the model years' windows from the Porsche PET...and I don't see a hinge either ( of course unless I'm blind !)

- Wil

Andras Nagy · 11-21-2005, 04:52 AM

My 1974 911 had pop-out windows, and they were hinged at the B pillar, with the stationary piece screwed to the B pillar.

It also had a "funny" piece at the C pillar, that allowed them to be opend about 3", and then lockd in place with a plastic screw. I can't figure out what to call those things.

Anyway, when I checked with a local race shop that routinely removes these things, their take-offs also have the hinges at the B pillar.

So, in my experience, the pop-out side windows are hinged. Perhaps the "slots" are earlier than 1974 or later than 1974 pieces?

Wil Ferch · 11-21-2005, 05:10 AM

I wish TRE cup would chime in on this thread to provide some clarification as to the variations and permutations we can expect to see.

I don't like entering into a new project unless there is a relatively clear "road plan" ahead of me.

- Wil