Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Lightweight acrylic sunroof panel on it's way

Thread Tools
 
Search this Thread
 
Old 08-18-2004, 07:46 AM
  #16  
Thaddeus
Deer Slayer
Lifetime Rennlist
Member
 
Thaddeus's Avatar
 
Join Date: May 2001
Posts: 25,565
Likes: 0
Received 3 Likes on 3 Posts
Default

Verrrrrrrrrrrrrrrry cool...
Old 08-18-2004, 12:13 PM
  #17  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,152
Received 87 Likes on 56 Posts
Default

I want one as soon as possible. Can I paypal you?
Old 08-18-2004, 01:39 PM
  #18  
PorKen
Inventor
Rennlist Member

Thread Starter
 
PorKen's Avatar
 
Join Date: Sep 2002
Posts: 10,174
Received 412 Likes on 228 Posts
Default

GoRideSno, 20C_928, Thaddeus,

Thanks.
...

drnick,

Thanks. Almost 15 kilos, and the welded in body parts must be another 10! Why didn't they at least make that sliding trim panel from aluminum?

I'm using a lipped plastic seal (door edge protector) around the perimeter of the panel. The sunroof is designed for water to leak a little around the edges.

As part of the factory setup, there is a 1/2" tall 'wall' which creates a trough around the front and sides. I've retained the factory rear drip rail/seal which mounts underneath and behind the panel. The rail diverts water to the sides, where it drains out the factory drain hoses.
...

BrendanCampion,

My girlfriend is on vacation, so I have only a few hours a day to work on 'important things'.

If you wanted just the unfinished cut acrylic panel, without seal or bracket, it would be $45 for 1/8", and $55 for 3/16", in bronze, green, or basically any color that (TAP plastics) carries, plus shipping. I'm using 1/8" initially.

When I get time, I'll check into 1/8" aluminum.

And, yes, I can take PayPal.
Old 08-18-2004, 02:37 PM
  #19  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,152
Received 87 Likes on 56 Posts
Default

Well, since your the engineer and I'm the Financial Professional, I'm thinking maybe I should let you do the bracket and seal?

Do you think Aluminum would be lighter than the Acrylic? I like the acrylic idea because it can let a small amount of light through and I don't have to paint it, but if the aluminum would be lighter, then...

BUt the bracket and seal - how is the bracket bonded to the plastic? Would it fit right in normally? The seal - do you think it will keep out enough water?>

I can't specifically figure outwhat colors are for the material you are using... Is there some seriously dark but not opaque stuff?

So essentially, give me an idea on the finished thing with bracket and seal, and I will paypal you this week or next to get you going.
Old 08-18-2004, 02:48 PM
  #20  
Gretch
Range Master
Pepsie Lite
Lifetime Rennlist
Member
 
Gretch's Avatar
 
Join Date: Apr 2002
Posts: 54,291
Received 1,235 Likes on 755 Posts
Default

Ohhhhhh, this smells like the beginning of another "kit" offering.........Many of us are suckers for those damn "kits".........


Old 08-18-2004, 03:09 PM
  #21  
PorKen
Inventor
Rennlist Member

Thread Starter
 
PorKen's Avatar
 
Join Date: Sep 2002
Posts: 10,174
Received 412 Likes on 228 Posts
Default

BrendanCampion,

There will be bolts through the plastic to hold it to the brackets. I'm not comfortable with only gluing it on. The panel fits tightly with the current seal. But, as I said above, the seal does not have to be hermetic, because there are existing drains around it.

The opaque acrylic sheets do let some light in, the bronze or green match the factory tinting nicely.

I would guess that the aluminum would be similar in weight, but would be paintable. One advantage I can forsee with the aluminum is that there will be no visible hardware.

I'm negotiating with my girlfriend about spending some time on it. We're driving to Vancouver, BC, this weekend, so I'd like have a functional prototype done by then!
...

Gretch,

Shuddap with yer kits. I'm so over kits.

This here is a bolt-on.
Old 08-18-2004, 03:26 PM
  #22  
Gretch
Range Master
Pepsie Lite
Lifetime Rennlist
Member
 
Gretch's Avatar
 
Join Date: Apr 2002
Posts: 54,291
Received 1,235 Likes on 755 Posts
Default

OK "Bolt-on kit", call it what ever makes you happy (kinda like prince changing his name allatime)......I have a question........can your tinted plexi piece be substituted for the metal one in the stock set up? IE kinda full circle to your idea of making the tinted plexi "retractable"?

That would be cool, so cool in fact I prolly couldn't stand not having one.............

BTW I still would like to get my hands on the breather bits you designed......
Old 08-18-2004, 03:37 PM
  #23  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,152
Received 87 Likes on 56 Posts
Default

Okay, while you are talking to your girl about time and negotiating these issues, can you also include some discussion about creating some shippable stuff for your lighting upgrade/non-moving stuff, as well as your breather thing. Any diagrams?

I looked at your site - great stuff.
Old 08-18-2004, 04:13 PM
  #24  
sharkmeister85
Three Wheelin'
 
sharkmeister85's Avatar
 
Join Date: Dec 2003
Location: Vancouver, Canada
Posts: 1,729
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by PorKen
We're driving to Vancouver, BC, this weekend, so I'd like have a functional prototype done by then!
Whistler for the weekend by chance?
Glenn
Old 08-18-2004, 06:51 PM
  #25  
heinrich
928 Collector
Rennlist Member

 
heinrich's Avatar
 
Join Date: Jan 2003
Location: Seattle
Posts: 17,270
Received 5 Likes on 5 Posts
Default

I want one. How about a removable inner (targa clipped) panel ....
Old 08-19-2004, 02:08 AM
  #26  
Normy
Banned
 
Normy's Avatar
 
Join Date: Feb 2002
Location: Ft. Lauderdale FLORIDA
Posts: 5,248
Likes: 0
Received 4 Likes on 3 Posts
Default

Extremely cool! Let me know when you sell this kit- I'll be right there.

N!
Old 08-19-2004, 02:20 AM
  #27  
mpesik
Banned
 
mpesik's Avatar
 
Join Date: Oct 2003
Location: on a huge ball
Posts: 7,849
Likes: 0
Received 0 Likes on 0 Posts
Default

Looks nice. But, are you not adding another burner to the oven! Mike
Old 08-19-2004, 02:57 AM
  #28  
PorKen
Inventor
Rennlist Member

Thread Starter
 
PorKen's Avatar
 
Join Date: Sep 2002
Posts: 10,174
Received 412 Likes on 228 Posts
Default

Gretch,

Making a direct replacement for the lid, retaining the motorized movement, is a defineate possibility. It will require an alternate engineering path, but it looks like it could be done.

I still have the plumbing bits for you.
...

BrendanCampion,

You mean my (Rennlist webpage)? I have been meaning to make a page with the few useful items I've thought of, with a PayPal link. For example, a L-Jet cold-start delete, or a rear trans cooler bolt-on.

I guess I'll have to set up a page now. I think I touched a nerve with the sunroof thing.

I was going to re-re-engineer my lights this week, until this came up. I plan on going with just the low beam in the headlight opening, farther forward, with the high beam in place of the US parking light in the bumper.

The air pump assisted breather setup I abandoned, and I'm back to using an exhaust vent, but I have another idea for the 16V which I'll pursure soon.
...

sharkmeister85,

Just a quick family visit. The upside for me is we're taking the 928 this time (knock on wood)!
...

heinrich,

You mean like a sun shade (or better, a burrito warmer)?
...

Normy,

Thanks. Once it's tested and ready for primetime, I'll set up an assembly line.
...

mpesik,

I suppose if I lived where it's nonstop hot and sunny, I might want an aluminum panel to keep out the sun. Summer here, though, is fleeting.
Old 08-19-2004, 10:52 AM
  #29  
Richard Lang
Addict
Rennlist Member

 
Richard Lang's Avatar
 
Join Date: Jan 2003
Location: Phoenix AZ
Posts: 314
Likes: 0
Received 0 Likes on 0 Posts
Default

If you do a replacement for the retractable sunroof let me know I am interested in doing at least one of the cars.

Richard
Old 08-19-2004, 10:57 AM
  #30  
Thaddeus
Deer Slayer
Lifetime Rennlist
Member
 
Thaddeus's Avatar
 
Join Date: May 2001
Posts: 25,565
Likes: 0
Received 3 Likes on 3 Posts
Default

I took my sunroof off last night to replace the gaskets. I couldn't believe how heavy it was! Even the liner is galvanized steel... seems like an easy place for Porsche to have saved considerable weight, I'm very surprised they did not...

Smoked (black tint acrylic) that takes the place of the metal panel is a great idea.. but that crossbar the metal panel attaches to would have to be replaced or modded, or else the view would be obstructed...


Quick Reply: Lightweight acrylic sunroof panel on it's way



All times are GMT -3. The time now is 11:21 AM.