For those with track cars who are interested...

I had to build a lexan hatch for a customer and was quite surprised when I did the weigh in at the end.

Stock wiperless hatch - 51lbs
Lexan Hatch - 30lbs

The hatch with a wiper would certainly be more, but I didn't weigh one so you're on your own there

The hatch frame was left alone, I simply cut out the window riveted in the lexan (after painting a black frite around the lexan) and butyl sealant was used on the inside. As well, some of the inside trim was re-installed on the frame (not much, but maybe 1 pound)

You could go further by hole-sawing some holes in the frame itself, and by omitting ALL sealant if it were a true race car, but this guy wanted to keep any moisture out if possible.

But there's an easy 20lbs for all you diet lovers out there

 

Theres a company that sells them, and its not too bad of a price, $295

Here's the link:
http://www.iscracing.net/Fiberglass.htm

 

You can lose another 16 lbs if you have a fiberglass hatch frame but it wouldn't be good on a street car. If anybody wants one PM me I make them.

 

This thread is useless without pics.

 

https://www.rx7club.com/non-classifieds-violations-59/fs-lexan-hatches-612267/

 

This thread is useless without installed pics? Hehe...

It does look good though. I wasn't sure on how the curve would look, but it seems to be nice.

 

Here is an old shot before I installed the lexan. Its held one with 7 dzus fasteners, no hinges.