sunroof or non sunroof?

IMR-Merlin · 09-06-2011, 04:29 PM

So, after the past 4 months of being straight out with work and riding, I now have a window to get some work done on the car http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/567389-new-member-930-project.html . I am considering deleting the sunroof, mainly to shave some weight and gain some head room for the cage (and the current roof doesn't work). Also I am planning on shaving the rain gutters to clean up the car a bit.

My question is, what's the difficulty in deleting the sunroof? Is there any structural differences under the headliner between the cars with the sunroof and the ones without? I have a good fabrication background and I am a competent welder, just want to get some input from anyone who has done this.

Thanks in advance for any input.

Brendon

9dreizig · 09-06-2011, 04:43 PM

Talk to Damon up in Sunapee he's the best body guy in New England, he's on the board. We removed Chris Benets sunroof when we re-built his car I think the real difficulty is welding without warping.

IMR-Merlin · 09-06-2011, 04:49 PM

I am wondering if there is a support that runs below sunroof area on non-SR cars. I am going to use a sunroof panel as the donor metal and run a 1" (24.5mm for the euro guys ) strip of 20 gauge steel and cross stitch to keep the heat down.

Do you know what Damon's username is here on this forum?

Thanks for the reply

Brendon

9dreizig · 09-06-2011, 04:57 PM

Brendon,, PM sent

gumba · 09-06-2011, 04:57 PM

When I bought my car ('75 Carrera) it had a full cage tight to sun roof.
The sunroof cars have a metal sub structure for the sun roof mechanism. You loose about 1 1/2-2" of headroom with the sunroof. We cut most of the roof out, coming in 2" from the front and rear windows and rain gutters. The roof section we cut out weighed 39 lbs. We installed a carbon fibre roof weighing 5 lbs.
I tied the roll bar into the A & B pillars and sections or the remaining roof where the roll bar was close.

9dreizig · 09-06-2011, 05:00 PM

google Damon at Series 900 in Sunapee that's the business that Damon owns

IMR-Merlin · 09-06-2011, 05:01 PM

Quote:

Originally Posted by gumba

I tied the roll bar into the A & B pillars and sections or the remaining roof where the roll bar was close.

I am planning the same on my project.

Thanks for the input.

IMR-Merlin · 09-06-2011, 05:02 PM

Quote:

Originally Posted by 9dreizig

Brendon,, PM sent

PM sent back. Thanks

jsveb · jsveb's Garage

Quote:

Originally Posted by IMR-Merlin

I am wondering if there is a support that runs below sunroof area on non-SR cars. I am going to use a sunroof panel as the donor metal and run a 1" (24.5mm for the euro guys ) strip of 20 gauge steel and cross stitch to keep the heat down.

Do you know what Damon's username is here on this forum?

Thanks for the reply

Brendon

For the euro guys that'll be 25.4mm

In my Carrera 3.0 (older I know) there is nothing but the roof skin. No support structure. This is a non sunroof car.

IMR-Merlin · 09-06-2011, 05:20 PM

Quote:

Originally Posted by gumba

When I bought my car ('75 Carrera) it had a full cage tight to sun roof.
The sunroof cars have a metal sub structure for the sun roof mechanism. You loose about 1 1/2-2" of headroom with the sunroof. We cut most of the roof out, coming in 2" from the front and rear windows and rain gutters. The roof section we cut out weighed 39 lbs. We installed a carbon fibre roof weighing 5 lbs.
I tied the roll bar into the A & B pillars and sections or the remaining roof where the roll bar was close.

Quote:

Originally Posted by jsveb

For the euro guys that'll be 25.4mm

In my Carrera 3.0 (older I know) there is nothing but the roof skin. No support structure. This is a non sunroof car.

Sometimes my finger move quicker that my mind.

Good to know that there is no extra support there. I am thinking I can shave a few pounds from the top of the car. Although that CF roof panel sounds like a good option.

Any info on where I can get one?

IMR-Merlin · 09-06-2011, 05:57 PM

seeing as I am flushing the rain gutters, think it would be worth getting a non sunroof panel?

They're fairly cheap and would save some fabricating time

EXCELLENT USED ORIGINAL PORSCHE 911 912 ROOF PANEL | eBay

IMR-Merlin · 09-06-2011, 07:29 PM

ok, pulled the trigger on a non-sunroof skin, updates to come.

IMR-Merlin · 09-08-2011, 03:00 PM

Picked the skin up last night and was wondering from those who have done this.

Seeing as I am deleting the rain gutters on the car should I just use that as my cut point on the roof panel?

I was thinking of using that and following the rear window line in the back and drilling out the spot welds in the front across the windshield. This way I have the least amount of filler (not including the rain gutters of course).

Thanks in advance for any input.