How much stiffer with solid or tied in roof? |
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How much stiffer with solid or tied in roof? |
Mueller |
Dec 12 2004, 11:17 AM
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#21
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
New car has no cage, I know the 914 tends to flex and that the factory welded steel roofs on the 916 for what I guess was to help stiffen them, or was it for other reasons??
The 'glass top should help a little, but I was wondering about attaching tubes or the like from the factory roll bar to the windshield hoop to stiffen the car up.... Has anyone played with this before?? |
Brett W |
Dec 14 2004, 12:17 AM
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#22
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
Yes I have cut the windshield off. The windshield and cowl wiegh in at less than 10lbs. There really isn't a lot of material in that area. There are several pieces of material that come together around the door jambs.
Notice the redline is a broken spot weld. You can see through to the fuel tank area. That panel is 1 peice of .050 sheetmetal. No top just an open unreinforced box. There is very little structural intergrity to this area. That is why these chassis twist so bad. The lower A pillar is really strong, not necessarily stiff. It does form a boxed section but the box is vertical and not really tied into the rest of the chassis. The reason it is so strong is because the doors have to hang off them. The Blue line shows the multiple peices of metal that come togther in the area of the A-pillar, but they just connect like post. Vertical with the rest of the chassis hanging off the post. Very little reinforcement on three sides. Attached image(s) |
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