Will a sunroof make a 240sx slower and heavier?

[OBOYz3Hunna]

Will a sunroof make a substantial amount of difference in weight and how fast it goes?

[krash]

nope. Welcome to nico by the way!

[DMan II-40]

It will however make the car less structurally ridged. However, unless your a racer looking for a .01% time advantage on the race track then it shouldn't be a problem.

[Hijacker]

I HATE sunroofs in 240s. I autocrossed one a few years back that a friend had set up. My helmet kept hitting the edge of the opening.

As for rigidity, I wouldn't say that there's a whole hell of a difference between a non-sunroof model and a sunroof model. The reason I say that is the extra bracing done on the roof. Weight wise, it might be an extra 50 pounds at best once you count in the glass, the power track, and the bracing. Nothing too terribly impeding. Most people get rid of their sunroofs because of clearance issues like what I mentioned.

[krash]

I HATE sunroofs in 240s. I autocrossed one a few years back that a friend had set up. My helmet kept hitting the edge of the opening.

As for rigidity, I wouldn't say that there's a whole hell of a difference between a non-sunroof model and a sunroof model. The reason I say that is the extra bracing done on the roof. Weight wise, it might be an extra 50 pounds at best once you count in the glass, the power track, and the bracing. Nothing too terribly impeding. Most people get rid of their sunroofs because of clearance issues like what I mentioned.

It gets pretty tight with the coupe's electric sunroof. But like you said, weight wise I don't think its anything someone would notice. Structurally you're not missing out on much at all either. If you want to save the weight, take the spare tire/tools out, vacuum the car, and go for a jog. These minimal weight savings aren't going to make any difference unless you are REALLY competing hard and trying to squeeze the seconds out, like Dman said.

[SoCal-S13]

yeah man the hole cut in the roof adds so much weight and makes it way slower. that makes total sense.

[Hoffman5982]

Actually it does make sense. You're losing a little sheet metal but gain a chunk of glass and the motor/tracks etc that goes with it.

As people have already said, the only thing you will tell a difference with is head room. I'm about 6' 1" and if I don't have my seat leaned back a hair I'm barely touching the roof ih a sunroof

[SoCal-S13]

Actually it does make sense. You're losing a little sheet metal but gain a chunk of glass and the motor/tracks etc that goes with it.

the weight difference between two is insignificant and in no way affect how fast a car will go. I would laugh so f*** hard if someone came at me with this claim in person. Just tell me how? Have you ever removed the sunroof? I have, in total it weighs AT MOST 5lbs. So please explain where the f*** any of this makes sense. You must have removed your brain for weight reduction purposes as well.

[krash]

Hoffman is right though. In addition to adding the glass, there are other braces added to ensure that the structural integrity is not compromised. On the s13 coupe, electric sunroof was available. So that means tracks and motors as well.

Its very insignificant in the grand scheme of things, but there is a difference in weight. Cool yer jets brah.

[FlipCoupe]

I like the moonroof on my hatch, nice to let in some fresh air when its nice without having to deal with the noise of having on of the windows down.

[SoCal-S13]

Hoffman is right though. In addition to adding the glass, there are other braces added to ensure that the structural integrity is not compromised. On the s13 coupe, electric sunroof was available. So that means tracks and motors as well.

Its very insignificant in the grand scheme of things, but there is a difference in weight. Cool yer jets brah.

given the fact that the OP clearly doesnt know jack s*** the least of his worries are the god damn structural braces in his roof. that was my point. In no way is a sunroof connected to the speed a vehicle travels nor will the weight difference change the performance. The ONLY thing it is related to is structural rigidity, and as I recall the OP didnt even mention that.

[badbob2121]

The ONLY thing it is related to is structural rigidity.

Ya, because that isnt important..

But hey, stupid threads only deserve stupid answers

[krash]

given the fact that the OP clearly doesnt know jack s*** the least of his worries are the god damn structural braces in his roof. that was my point. In no way is a sunroof connected to the speed a vehicle travels nor will the weight difference change the performance. The ONLY thing it is related to is structural rigidity, and as I recall the OP didnt even mention that.

Doesn't matter what he does or doesn't know, he asked a question, it was answered. The weight difference will affect the performance and the speed the car accelerates. Is it noticeable, to most people not at all. Significant, not really. Are there bigger things to worry about, absolutely.

[pepesilvia]

love my sunroof! but it DOES actually make it slower because now you have to account for all the extra girls that wanna ride in yur car with the sunroof down......

[krash]

Problem is even more prevalent with the vert. Ask Hijacker, he knows whats up.

[Hijacker]

Dude. I can't keep girls out of my vert. They even pop the trunk to get a ride.

[SoCal-S13]

Problem is even more prevalent with the vert.

i know those verts have huge sunroofs

[Razi]

The vert is just one huge sunroof.

[Hijacker]

Problem is even more prevalent with the vert.

i know those verts have huge sunroofs

I think you missed what Krash was getting at. Sunroofs slow cars down from girls who can't stay out of the car cause of said sunroof. The problem is amplified with verts. Seriously, chicks dig verts.

[krash]

I remember getting out of a parking space at school a few semesters ago and I had a friend riding passenger. We were going to follow her friend's to get some lunch. By the time I got out of the parking spot, the car was full and we were using GPS because there was no one to follow