I dont see how a sunroof serves as a form of head protection. Could not be all that significant in a rollover situation. I can understand the flex issues, but rolloever issues is what roll bars are for, not sunroofs.

 

HeavyCheavy, guys like MaShaw, Getty etc.. have CF sliding roof replacements if this is what you are talking about.

 

LOL really?

Is there info on the sites? That would be a great idea, replace the whole unit with a CF unit.


But only if it doesnt kill the weight reduction.

 

Guys, say your roll your car hard....that is my concern. Sliding along the CF will shatter. The stock likely would hold up.

Just my opinion. No if you epoxied titanium.... I suppose you could make it stronger than stock.

They key would be to learn what the stock unit does in a crash....

JB


JB

 

Just noticed this thread has 4 pages , I had only read the first maybe it was mentioned before?

I have cut and changed the whole roof for a GT2 skin on my 993, but If I was to redo it, I would use those CF pieces and get rid of the mechanism.

 

One thing is for sure, the car only offers so much protection with or without a sunroof in it. I would not advise this mod at all for someone without a roll bar, but the simple fact is that most race cars have cage and sheet metal or CF.

I think of it as more of an option for a caged/barred car.




Jean, tell us more about your conversion details.

 

Absolutely....as always, words of wisdom from the heavy.

 

I did that on my M3, did the CSL CF roof and it was a big install, you need 2 front/rear windshields too LOL, most shops will not get them off intact.

Sick upgrade for a performance/track oriented car, Oakley Design I think has a CF roof for the 996, Revozport too!

 

Porsche offered a sun roof delete option from the factory. I spoke with a
6 speed member who has one. I am not sure if this can be retrofitted.
Also, I have a Porsche shop manual that shows step by step assembly removal. I have been considering this for some time now.
I will do some research and post the results.

 

I don't think the sunroof or metal sheet will protect you in case you flip upside down the car. I would be much more worried about wearing a harness, a helmet, a Hans, Window net etc.. These are far more important IMO.

What are the odds of flipping upside down during a DE or occasional track day, in the 100ths of a percent? I have seen videos of course of this happening, but usually during racing, I personally have never seen it happen outside racing on a track, despite some seriously bad accidents at speed that we sometimes witness here. If you are a serious track junkie, a roll bar or roll cage is a must of course.

Don't think I am not risk averse, just trying to be realistic that's all.

As to my GT2 roof conversion, a picture is worth a thousand words..

 

The expense is not in the sunroof delete panel, it's in the headliner that needs to be changed.

 

I'm just curious, what's your guys's theory that this would be completely unsafe in a roll over If say you welded a piece of sheetmetal in.

 

If something were there, no issues....if Carbon Fiber...say a rock or a curb....something that would "crack" CF but not metal.....


Reason...I had a 40mhp crash on a road bike in a pack....the look of CF (I had a sponsored Kestrel at the time....) was not pleasant...it was sharp and could have really lacerated me). Just me and my idea. It is a free country.....but if there, it should be something that is at least as resistant to entry into the passenger compartment as stock...my opinion based on NO facts.

Roll cage is great stuff....I would not do this at all without a cage type thing. I am not even sure a bar is enough....

I am so far from a sunroof making a difference..so please all understand that I mean no insult. If it is that big a deal, you guys are way, way out of my league....

It would be cool to take 100lbs off the car up high....trust me, I fully appreciate that.


JB

 

So could you take out all the sunroof stuff and then just weld back in the stock metal sun roof piece? then use a non-sunroof headliner?

 

That's the point I've been trying to make. This is not for someone without a cage or bar in there car to begin with. I find no additional security in having the sunroof in the car with a cage or bar at all. So safety reasons should not be an issue. With Harnesses, Hans, etc, and the bar, the sunroof is not needed in the event of a roll over IMO, assuming it WAS needed in the first place.

So I'm in total agreement. Not we need to see what the cost would be to get this done. Problem is that if anything is bought from the dealer it will be mega bucks. If BAR/CAGE users only removed the sunroof, placed a small piece of metal or CF in the hole, and replaced the headliner and/or just used double sided tape on the headliner it could be made to look decent. The M3 had no modifications done after removing the roof, and it just hung there, but nothing some double sided tape couldnt fix. IF you want to go the extra mile, then fine, but for me and a few others, it's all about the track, and a new headliner isnt needed.