Which Windshield 993 or stock 89??

[Blade1055]

Ok, I've reviewed the threads and it looks like the 993 windshield fits. Mine is a 1989 3.2 TARGA (radio antenna and top tint) and the windshield needs replacement due to the "sandblasted" pits when the sun or headlights hit it.
I was thinking the 993 windshield may be a little quieter because it's not disturbing the air at the top of the windshield frame. Not sure of the exact cost differances, but we own Porsches, so we can't be to concerned with al little extra cost. So, which one would you put in if you were in my situation?
I'm in the San Francisco Bay area and was thinking of doing it myself, recommendations for windshield purchase location?
Thanks,
Blade

[Blade1055]

Doing a search of 964 windshields on page 7 of that post more than one person noted the 993 glue in windshield fits in the 87-89 3.2"s. I was hoping the more areo dynamic shape would flow air over the targa seal better and make it less noisy. The below comments were from that 964 windshield conversion thread.


SCHNELE

Registered User


Join Date: Jun 2005
Location: Michigan
Posts: 1,398
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1987 Porsche 930 3.4 TURBO
I have a 993 glass on my car I can assure you it does fit.
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Lincoln Phillip
87 930 Motec EFI M600 G50/50 fire breathing beast, bone stock be damned!

[vracer]

Blade,
I'm in Marin, and I have priced a new w/s at $495. I have not checked Safelite(light?). but they were about $300 higher on nother w/s.

[dshepp806]

I, too, am up for a changeout on my '89........My present load doesn't have any metal strips at all (just rubber) ,..did they have that in 1989? Or has my P.O. already made the move?

Doyle

[sc_rufctr]

The 89 impact bumper Carrera had the same front windows as the C2 series cars.

That is lower profile and no trim strip.

The 993 front window option is a good one because that window is glued in and fits the earlier cars (pre 88). You need a 993 window seal set (two pieces).
The C2 and 89 doesn't fit the earlier cars. You'd think it would but the C2 window aperture is slightly larger.

This info is from several older threads.

[OttoB]

My 1991 965 has a 993 factory windshield that I replaced from its original - looks better, no fitment issues what so ever, but the antenna within it leaves a lot to be desired when trying to get good reception on the radio... Insurance companies do it automatically, so see if you can fenagle it that way...

[hcoles]

Regarding older 911 glass - if you want someone who knows what is going on and can do the job, I suggest contacting Capital Auto Glass on Pearl in San Jose. The owner did most if not all the Porsche glass in the area back in the day.

[Blade1055]

Thanks for the responses, I read that the later 1989 3.2 actually had the 89/90 964 windshields and trim in them. Mine is early and still has the metal strip in the rubber. This doesn't shound like that tuff of a job, I have installed a few windshields with with a string while someone pushed from the outside. I've caulked plenty of bath tubs, so how hard can it be to caulk a rubber strip before setting a windshield in? I've read that the glue in windshield adds rigidity to the body since it becomes part of the car, but what I haven't heard if it reduces any wind noise. Comments? Sounds like I could spend $200 to $300 more to go with the 993 windshield, does that sound right?

[Wil Ferch]

Blade is correct.... SC_RufCTR has made a blanket statement that is only 1/2 true....true only for the later series production run of 89 torsion bar cars, where he says... " The 89 impact bumper Carrera had the same front windows as the C2 series cars.."

...only for the later production run.

[sc_rufctr]

Wil is correct. The change happened after a certain chassis number in 89.

[Blade1055]

Great comments, I'm going to try the 993 windshield. I thought I saw the parts to do this in the Pelican catalog a year or so ago. a two piece "liner" gasket that goes around the lip and the trim for the outside. Did our host quit carrying them or am I looking in the wrong Place?
Thanks,
Blade

[Tilikum Turbo]

Got pic's?

: )

[tchanson]

Originally Posted by sc_rufctr

The 89 impact bumper Carrera had the same front windows as the C2 series cars.

That's not quite accurate.

'89 3.2's after approximate production date 10-13-88 were built with the slightly revised windshield pinch weld lip of the 964, along with the 964 glass and trimless seal.

I have a list somewhere of the VINs affected by the switch as well if needed.


Tim

[sc_rufctr]

Originally Posted by tchanson

That's not quite accurate.

'89 3.2's after approximate production date 10-13-88 were built with the slightly revised windshield pinch weld lip of the 964, along with the 964 glass and trimless seal.

I have a list somewhere of the VINs affected by the switch as well if needed.


Tim

look at post 9 and 10.

[tchanson]

Originally Posted by sc_rufctr

look at post 9 and 10.

I did. It's not just "later" production '89 3.2's, as production of the last torsion bar cars continued through June '89, or roughly 8.5 months after the change in seals was made.

My point was intended to clarify. Not all '89 cars as you stated, nor only later '89 cars as stated above, but instead the majority of '89 cars, with a few earlier production exceptions, came with the 964 front and rear glass and seals.



Tim

[sc_rufctr]

Tim

Do you know from what body number the change occurred?

[vracer]

This thread has proven to be worth the price of admission. My '89 was built in either Nov. '88 (Door post) or Dec. '88 (COA), so I guess I'm cool.
Thank you Tim, your hours and hours acquiring know edge has helped another Pelican.

[m110]

Originally Posted by dshepp806

I, too, am up for a changeout on my '89........My present load doesn't have any metal strips at all (just rubber) ,..did they have that in 1989? Or has my P.O. already made the move?

Doyle

Yours might not have the new 964 windshield and trim. I believe 88 and 89s came without black aluminum trim and rather a plastic/rubber type version. You might have a regular old windshield with the plastic trim.

[dshepp806]

no trim, as mentioned,..just rubber.

[KTL]

It will definitely improve wind noise going with the 993 windshield. I have experienced first hand what a tired original seal will do for wind noise vs. a new one. Add in the fact you'd be adding a smoother lip and you will cut down on wind noise for sure.

With respect to the rigidity issue, I agree it will help. Think about it this way, the windshield opening is a huge hole cut in the upper monocoque chassis with no reinforcement across the opening, in terms of lacking cross-bracing across the hole. Anything you do to brace that hole is going to stiffen up the opening. That urethane goop adhesive/sealant is some strong stuff. Not rock solid, but still a stiff rubber when cured.

I had a tube of 3M Window Weld urethane I partially used and put back on the shelf. A few years later the remaining urethane had completely cured in the cartridge. So I cut the metal cartridge casing away to see what the stuff was like. It had completely cured into a solid black cylinder with the consistency of one of those "superball" balls kids play with. You know, the tiny ball with a diameter ~ the size of a quarter dollar that bounces 30 ft. in the air when you whip it at paved ground as hard as you can.

I have also used the urethane to half-assedly glue in a windshield to a '86 325 BMW Lemons car. We had to pull the windshield to pull the dash so we could install the cage uprights. Instead of doing the right thing and buying a new windshield seal, we reused it. When we got the windshield back in, the fit was very flexy/loose. So I injected the urethane in all the gaps in the channel and also glued the seal to the glass. Doing so tightened up the fitment of the glass very well. When the windshield was replaced a few years later, it had to be cut out.