weight targa vs no targa
#6
lol - my turn - what coupe? i know of cabs and hatchbacks, but no hardtop with a trunk (which is what defines a coupe as a coupe) - ok - fun over - we now return you to your regularly scheduled programming
anyway, it is likely only about 10 lbs difference - you would still have the sheet metal portion, and some roof reinforcement there - you really wouldn't change all that much
anyway, it is likely only about 10 lbs difference - you would still have the sheet metal portion, and some roof reinforcement there - you really wouldn't change all that much
#7
Three Wheelin'
anyway, it is likely only about 10 lbs difference - you would still have the sheet metal portion, and some roof reinforcement there - you really wouldn't change all that much
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I must disagree with this...
We did remove my sunroof, and put in Porsche's non-sunroof metal replacement on my car; and the weight was closer to 30 lbs, if not more!
The sunroof alone weighs a ton; probably more than 20 lbs by itself.
Then you have motor, cables and electrics...
Jason
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I must disagree with this...
We did remove my sunroof, and put in Porsche's non-sunroof metal replacement on my car; and the weight was closer to 30 lbs, if not more!
The sunroof alone weighs a ton; probably more than 20 lbs by itself.
Then you have motor, cables and electrics...
Jason
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#8
removing one and a car built without one are two different things - did you install the reinforcing ribs and new sheet metal that the car would have had?
yes, the sunroof weighs more than 10 pounds, but not as much as you think, and the sheet metal is a large part of that, which would remain in the car - then the bracing that should have been there would be another couple of pounds
if the motors are anything like the cab top motors, they don't weigh much either- cables are good for a pound or so
the net result would not likely be a whole lot, but even 10 pounds is 10 pounds, and off the top of the car
yes, the sunroof weighs more than 10 pounds, but not as much as you think, and the sheet metal is a large part of that, which would remain in the car - then the bracing that should have been there would be another couple of pounds
if the motors are anything like the cab top motors, they don't weigh much either- cables are good for a pound or so
the net result would not likely be a whole lot, but even 10 pounds is 10 pounds, and off the top of the car
Last edited by flash968; 11-21-2006 at 10:46 AM.
#10
Rennlist Member
Originally Posted by flash968
removing one and a car built without one are two different things - did you install the reinforcing ribs and new sheet metal that the car would have had?
yes, the sunroof weighs more than 10 pounds, but not as much as you think, and the sheet metal is a large part of that, which would remain in the car - then the bracing that would have been there would be another couple of pounds
if the motors are anything like the cab top motors, they don't weigh much either- cables are good for a pound or so
the net result would not likely be a whole lot, but even 10 pounds is 10 pounds, and off the top of the car
yes, the sunroof weighs more than 10 pounds, but not as much as you think, and the sheet metal is a large part of that, which would remain in the car - then the bracing that would have been there would be another couple of pounds
if the motors are anything like the cab top motors, they don't weigh much either- cables are good for a pound or so
the net result would not likely be a whole lot, but even 10 pounds is 10 pounds, and off the top of the car
https://rennlist.com/forums/944-turbo-and-turbo-s-forum/312989-sunroof-delete-cars-do-you-have-bracing-instead.html
Raj
#11
what guys? have we seen the inside of a car that came with no sunroof? are you sure there is no additional bracing up there? unless they left the sunroof frame in there, there should be something up there that runs across left to right to take the place of the sunroof framing, to prevent "soup-canning" - i can't imagine they left the entire roof unsupported
i have held a sunroof in my hands and while it isn't light, it isn't that heavy either - it's a whole lot lighter than the hood, which is only 39lbs - i'd guess about 15 or so pounds - i'll weigh one the next time one is over here - then if i can persuade somebody to let me strip theirs, i can find out what the metal weighs (though that can actually be calculated based on the guage of the steel and size of the area)
i have held a sunroof in my hands and while it isn't light, it isn't that heavy either - it's a whole lot lighter than the hood, which is only 39lbs - i'd guess about 15 or so pounds - i'll weigh one the next time one is over here - then if i can persuade somebody to let me strip theirs, i can find out what the metal weighs (though that can actually be calculated based on the guage of the steel and size of the area)
#12
Three Wheelin'
I ordered my replacement roof from Porsche...By the way, it's not just a sunroof section; it's the entire roof.
It's just one piece of metal with no reinforcements running across it. My roll cage may prevent the "soup-canning" you refer to. Maybe that's why Porsche didn't put one in, too.
Hope this clears things up.
Jason
It's just one piece of metal with no reinforcements running across it. My roll cage may prevent the "soup-canning" you refer to. Maybe that's why Porsche didn't put one in, too.
Hope this clears things up.
Jason
#13
I'll chime in with real world experience from a 944 and a 951, if that counts for anything.
Having been intimate with two sunroof delete cars that were prepped for racing (ie: no interior), I can assure you that there is no additional bracing on sunroof delete cars, in fact, there is a little bit less structure. Sunroof equipped cars are a bit stronger structurally. These are facts, not conjecture.
Go find an early 924 in a junkyard somewhere, lots of them are sunroof delete models. Its the same set up, and you can easily bend in the roof of the car if you push down on it with your hand hard enough. Its a concave structure, which gives it some strength and prevents wind force from causing it to collapse at speed.
Regards,
Having been intimate with two sunroof delete cars that were prepped for racing (ie: no interior), I can assure you that there is no additional bracing on sunroof delete cars, in fact, there is a little bit less structure. Sunroof equipped cars are a bit stronger structurally. These are facts, not conjecture.
Go find an early 924 in a junkyard somewhere, lots of them are sunroof delete models. Its the same set up, and you can easily bend in the roof of the car if you push down on it with your hand hard enough. Its a concave structure, which gives it some strength and prevents wind force from causing it to collapse at speed.
Regards,