sunroof bung

Post by **4thgenphil** » Sun Sep 30, 2012 7:09 pm

yeah you could just weld in the rusty skin from a 4th gen

!

carbon looks much nicer though

the sunroof itself isnt that heavy, its the mechnism!

littlefeller · Post by **littlefeller** » Sun Sep 30, 2012 7:10 pm

if not, i have a spare sunroof panel i could copy in fibreglass

littlefeller · Post by **littlefeller** » Sun Sep 30, 2012 7:12 pm

it weighs around 25kg, theres more weight to save in the bonet

Ted · Post by **Ted** » Sun Sep 30, 2012 7:13 pm

ive done it on other cars by wrapping the outside edge of the steel sunroof with a piece of 5mm wire rod which you can tack weld to the sunroof as you fold it very neatly around the top edge and then once its back in its hole you can weld it into the roof. 5mm is a good fit on a bmw compact but ive never measured a prelude one.

littlefeller · Post by **littlefeller** » Sun Sep 30, 2012 7:16 pm

best and easyest way is keep the fuel to a minimal, almost 1kg per lt

secla · Post by **secla** » Sun Sep 30, 2012 7:28 pm

It'd going to be a track car so weight Will go from other areas to.

Post by **Donald** » Sun Sep 30, 2012 7:32 pm

littlefeller wrote:it weighs around 25kg, theres more weight to save in the bonet

The glass weighs 25kg?

I'd be hesistant to agree with that! My experience/knowledge tells me that glass weighs 2.5kg per square metre for each 1mm of thickness. Assuming the sunroof is 4mm thick that's 10kg/m^2 and you can work the rest out.

A1ex · Post by **A1ex** » Sun Sep 30, 2012 7:37 pm

The whole sunroof with gubbins (motor, runners etc) weighs 25kgs. I'll be making a CF roof skin....... eventually. Still have a list of other parts to make

vtectom · Post by **vtectom** » Sun Sep 30, 2012 7:39 pm

Can't you just pop rivet a piece of ali sheet over the gap?

Post by **4thgenphil** » Sun Sep 30, 2012 7:55 pm

vtectom wrote:Can't you just pop rivet a piece of ali sheet over the gap?

only if you wear a cowboy hat and spurs on at the time!