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Weird - Maybe the 350Z body isn't very stiff

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Old 04-09-2004, 09:16 PM
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jimster716
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Default Weird - Maybe the 350Z body isn't very stiff

Ok so earlier today I noticed that there was a dimple on the passenger side roof right above the "b-pillar" where the door meets the body. I thought maybe someone pushed down on it too hard.

But tonight I noticed the same thing on the driver side. Because of the symmetry between sides and that it occurs right above the b-pillar where the doors close into the body, I can only surmise that this is the weak point in the 350Z's body. Not to toot my own horn, but I think regularly autocrossing and HPDEs have actually tweaked the sheetmetal.

I think a chassis stiffening rollcage is in order before something happens that tears the metal. Anybody noticed this on their Z?
Old 04-09-2004, 09:18 PM
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mattbruhin
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Plainly, NO
Old 04-09-2004, 09:20 PM
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jimster716
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Originally posted by mattbruhin
Plainly, NO
Thanks for being direct.
Old 04-10-2004, 01:36 AM
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joust75
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Originally posted by jimster716
Thanks for being direct.
Did you maybe install a harness bar??

This might have pushed out the B pillars, causing dimples.....
Old 04-10-2004, 06:10 AM
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jimster716
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Originally posted by joust75
Did you maybe install a harness bar??

This might have pushed out the B pillars, causing dimples.....
Nope.

I guess the 275/40/18 tires front and rear, cusco sways, and Tein Flex are too much for the sheetmetal to take.
Old 04-10-2004, 06:53 AM
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Rayden2001
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Originally posted by jimster716
Nope.

I guess the 275/40/18 tires front and rear, cusco sways, and Tein Flex are too much for the sheetmetal to take.
Can you take a picture of it?
Old 04-10-2004, 08:38 AM
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ranger5oh
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I have the same dimple!!!!! I thought I was going crazy. I am glad you noticed it too. Weird, I hadnt thought of it being a weak point, but maybe that what it is. I am going to go look at it a little later and see.
Old 04-10-2004, 09:06 AM
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jimster716
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Originally posted by Rayden2001
Can you take a picture of it?
I have a black car so it's not easy to see it especially on camera. I will try but I can't until next week...Dreamworkes has my car again out here.
Old 04-10-2004, 11:49 AM
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aalzuhair
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Maybe the car needs something like a sub-frame connectors.



Az
Old 04-10-2004, 11:59 AM
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aalzuhair
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I like this one



or this one

Old 04-10-2004, 12:35 PM
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aalzuhair
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Can someone Photoshop one of the above sub-frames to this picture.

Thanks,
Az

Old 04-10-2004, 01:53 PM
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teh215
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The piece above both passenger and driver side windows is not part of the structure of the car, it is a plastic finishing plate that you can remove. Is this the area you are taking about? If so, it could just be a defect in the plastic. Or that single screw in that area my be the culprit.

Last edited by teh215; 04-10-2004 at 02:00 PM.
Old 04-10-2004, 01:58 PM
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For reference from the FSM
Attached Thumbnails Weird - Maybe the 350Z body isn't very stiff-doorfinisher.jpg  
Old 04-10-2004, 02:10 PM
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joust75
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Originally posted by jimster716
Nope.

I guess the 275/40/18 tires front and rear, cusco sways, and Tein Flex are too much for the sheetmetal to take.

Perhaps maybe welding in a harness bar will hold the B pillars rigid and prevent this from happening to others.

Ranger , can you take a picture of yours? I am about to start tracking my baby and dont want this to happen.....
Old 04-10-2004, 04:50 PM
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350ed
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Wow, I never knew that was plastic until now.
Old 04-10-2004, 06:01 PM
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Z350Lover
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Originally posted by 350ed
Wow, I never knew that was plastic until now.
I second that!!! You are not alone!!!

cheers,

richie
Old 04-10-2004, 07:41 PM
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rodH
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I have a slight dip on both sides as well, I noticed it a few weeks ago, but assumed it was from someone pressing on it. I also noticed today as my car was jacked up putting my new springs that there are a couple creases in the side skirts as well on both sides.
Old 04-11-2004, 02:37 AM
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ether
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this is what i have been considering if i can't find a shop to do a roll cage that i want

http://www.excite.co.jp/world/englis...co=excitejapan

i hope that link works if not use this http://www.rsw.ne.jp and look for reinforce
Old 04-11-2004, 03:48 AM
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apsilon
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If the dimple is in that plastic piece (I noticed it was plastic the first time I washed the car) I have it as well. I thought it's probably an attachement point or where it's prssed into place. Mine's only noticeable because the reflection changes over the dimple.
Old 04-11-2004, 05:14 AM
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Landbarger
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Thanks ether, your first link didn't work but the second did fine. that really does look like a workable solution from the perspective of a non-mechanically inclined person. Can someone who tracks (anything) comment on whether this works or just looks nice?


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