Factory glass weight, front and rear quarters

[Jack Olsen]

I've done some searching, but get contradictory numbers. Does anyone know the weight of the factory rear quarter glass, absent frame or seals?

And if you've got that, you might also have the weight of the front quarter pieces.

Thanks.

[Arne2]

Jack, I've got a pair of bare glass for quarters in my under-house storage. Stand by a touch and I'll weigh them.

[Arne2]

1235g (2lb 11.6 oz.)

[Jack Olsen]

Thanks! Are those rears or fronts?

[Arne2]

Rears. I don't have any fronts out of the frames right now.

[Jack Olsen]

Rears were the ones I was more uncertain about, since they're often weighed with the frames and seals. Thanks again!

[RWebb]

ok Jack - what are you up to?

[wareaglescott]

Originally Posted by RWebb

ok Jack - what are you up to?

Second!
Would love to know how this information is needed.

[Jack Olsen]

Originally Posted by RWebb

ok Jack - what are you up to?

Nothing very exciting. I had acrylic pieces in place for my front and rear quarters. But they were 16 years old and gray-ing out. You can see it in this picture if you compare them to the side door glass:



I had an extra sheet of UV-coated and scratch-resistant acrylic from another project, but it was only 1/16" thick. Still, I thought I'd try it out. The suspenseful part was seeing if it would simply blow out (blow in?) at track speeds. So I cut and fitted the new pieces in, and took it to the track this week -- and it held up fine.

Still, since I had never weighed the glass, I didn't know what the savings were compared to stock. Turns out, it's just a hair under 7 lbs.

Example: 118 grams is 4.1 ounces.



That's not much, in and of itself -- no one says the car really comes alive when they have 13 gallons of gas in the tank, as opposed to 14 gallons. But still, 7 lbs is something, and now I can get a clear look at my rear view mirror.



Here's the car all gussied up for the track. Clear windows, all around.

[RWebb]

I have more glass wt. data if you want it Jack. LMK & I'll post - or I can send you the entire database (in Excel), as it would be nice to preserve it by giving it to some young fella...

The technology exists to put a hard glass surface on a clear plastic part - it was used in the C7 'vette IIRC. No ideas on how hard it would be to obtain some raw pieces like that...

[GG Allin]

The glass is all out of my car, just not sure if I have a good scale to put any of it on.