I'm wondering if any of you track guys have seen or heard of anyone replacing the 36 lb rear 911 Targa glass with a lighter weight version made of 3/16" mar resistant polycarbonate (Lexan).
I have found a Porsche 944 example and several Corvette examples, but no Porsche 911 Targa examples.
http://emracingcorp.com/scripts/prodView.asp?idproduct=905
2008 Z06 Corvette Frame Mounted Wing and Lexan Rear Window - Excelsior Motorsports
Post by sc racing
lexan windshields - DragStuff
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I used 3/16". On the windshield Im just going to screw it every 3 inches and it will form because of the shape of the body. We made one at work for an 05 Corvette rear window it has close to 90* bends on the sides and is curved front to back when we finished screwing it on it looked like it was vacuum formed. I made my side mounts with 3/8" tubing that came in the kit and formed them to the old glass so the sides will fit the weatherstrip along the roof just like the glass did.
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Looks real to me, not sure why all the louver vents.
https://www.pinterest.com/pin/414049759462676541/
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deutsch-nine-porsche-944-turbo-rear-vented-lexan-hatch.jpg (1000×633)
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I'm sure that it can be done, I just haven't found an example of someone doing it - yet.
This is the tread which got me thinking about it:
http://forums.pelicanparts.com/porsche-911-technical-forum/491200-budget-targa-top-super-lite.html
Curious as to what the weight savings would be.