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> Torsional rigidity of the 914, Differences roof on / roof off / steel roof?
Beebo Kanelle
post Jan 5 2019, 08:17 PM
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Does anybody anywhere know where to find the torsional rigidity of the 914 with the roof off vs. roof on vs. steel roof (916) ?

Thanks in advance.
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jmitro
post Jan 5 2019, 10:37 PM
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that sounds like placebo effect to me.

I have no firsthand or secondhand knowledge, but I would suspect as mepstein said it makes no difference whatsoever with the targa top on or off. Too much slack in the rubber weatherstripping
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ConeDodger
post Jan 6 2019, 01:21 PM
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QUOTE(jmitro @ Jan 6 2019, 01:37 AM) *

that sounds like placebo effect to me.

I have no firsthand or secondhand knowledge, but I would suspect as mepstein said it makes no difference whatsoever with the targa top on or off. Too much slack in the rubber weatherstripping


I doubt placebo effect was in play. National level autocrossers are remarkably consistent. They can often predict improvement run to run. Mostly because unlike novice drivers, they know where they lost time. When they lose time, it’s usually spectacular. Ie: they spin...

I have driven my 914 without a top and without a windshield. That window frame wags like a golden retriever when dad comes home! (IMG:style_emoticons/default/laugh.gif)
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Posts in this topic
Beebo Kanelle   Torsional rigidity of the 914   Jan 5 2019, 08:17 PM
Chi-town   I've never seen an FEA of the whole car but I ...   Jan 5 2019, 09:05 PM
mepstein   No difference with the regular top. It's not b...   Jan 5 2019, 10:15 PM
Dave_Darling   I am told that there actually is a difference with...   Jan 5 2019, 10:25 PM
jmitro   that sounds like placebo effect to me. I have no ...   Jan 5 2019, 10:37 PM
ConeDodger   that sounds like placebo effect to me. I have no...   Jan 6 2019, 01:21 PM
914forme   The front A Pilars are the same as the 944, pretty...   Jan 5 2019, 11:11 PM
Tdskip   Not what you asked, but bracing the internal core ...   Jan 6 2019, 08:41 AM
Chi-town   A bolt down metal top would make a big difference ...   Jan 6 2019, 09:09 AM
mgphoto   The factory 914/6GT’s had steel reinforced roofs...   Jan 6 2019, 09:20 AM
Mark Henry   I have two 914's here one is rust free ( :roll...   Jan 6 2019, 09:47 AM
VegasRacer   Elvira has a cage plus some additional reinforceme...   Jan 6 2019, 02:18 PM
GeorgeRud   I notice quite a difference between my original -6...   Jan 6 2019, 02:23 PM
Dave_Darling   I believe that the guy whose car they tested was a...   Jan 6 2019, 03:49 PM
Curbandgutter   Hello, I did run some numbers on the torsional ri...   Jan 6 2019, 05:13 PM
Dave_Darling   Bottom line is that the stock 914 chassis is very...   Jan 7 2019, 10:05 AM
mepstein   Hello, I did run some numbers on the torsional r...   Jan 7 2019, 10:33 AM
Curbandgutter   [quote name='Curbandgutter' post='2679326' date='...   Jan 9 2019, 05:10 PM
rgalla9146   This is a great topic. I want a 914 coupe........   Jan 6 2019, 05:14 PM
914_teener   This is a great topic. I want a 914 coupe.......   Jan 10 2019, 03:49 PM
Tdskip   This is a great topic. I want a 914 coupe......   Jan 10 2019, 04:21 PM
Chi-town   I think I'm going to move forward with a bolt ...   Jan 6 2019, 05:18 PM
73-914   This is a great topic. I want a 914 coupe.......   Jan 6 2019, 07:41 PM
rgalla9146   This is a great topic. I want a 914 coupe......   Jan 6 2019, 08:47 PM
Beebo Kanelle   It appears that the 914 has a stiffness of 3,326 ...   Jan 6 2019, 07:49 PM
Curbandgutter   It appears that the 914 has a stiffness of 3,326 ...   Jan 6 2019, 08:21 PM
Beebo Kanelle   This is interesting : http://youwheel.com/home/201...   Jan 6 2019, 11:06 PM
steuspeed   This is interesting : http://youwheel.com/home/20...   Jan 9 2019, 06:19 PM
VegasRacer   2013 Cayman Steel.   Jan 7 2019, 12:18 AM
sixnotfour   beefing up the pillar base   Jan 7 2019, 11:05 AM
mgp4591   beefing up the pillar base Jeff, any special tre...   Jan 10 2019, 04:02 AM
sixnotfour   beefing up the pillar base Jeff, any special tr...   Jan 10 2019, 01:19 PM
dr914@autoatlanta.com   we spent hundreds of hours on Jon's car making...   Jan 10 2019, 02:37 PM
sixnotfour   we spent hundreds of hours on Jon's car makin...   Jan 10 2019, 05:13 PM
phillstek   beefing up the pillar base Have this done on my ...   Jan 10 2019, 05:07 AM
Tdskip   beefing up the pillar base Interesting - I have...   Jan 10 2019, 08:50 AM
rick 918-S   Urethane the windshield to the frame will help als...   Jan 10 2019, 08:38 AM
dr914@autoatlanta.com   There is an amazing difference between a 914 top o...   Jan 10 2019, 09:14 AM
914forme   John had templates and the parts made, Georges cre...   Jan 10 2019, 01:35 PM
ChrisFoley   I add a-pillar reinforcements when I build a hard ...   Jan 10 2019, 04:22 PM
BeatNavy   I add a-pillar reinforcements when I build a hard...   Jan 10 2019, 04:30 PM
ChrisFoley   I add a-pillar reinforcements when I build a har...   Jan 11 2019, 06:13 AM
strawman   I'll take a look and see if its something I c...   Jan 11 2019, 11:28 AM
pete000   I clearly notice more cowl shudder with the top re...   Jan 10 2019, 05:29 PM
djway   What inner structures are found on the steel roofs...   Jan 10 2019, 10:13 PM
Mark Henry   What inner structures are found on the steel roof...   Jan 11 2019, 04:37 PM
ChrisFoley   I looked in my CAD files for a pattern but we must...   Jan 11 2019, 04:23 PM
Mark Henry   AA did a steel roof (links above) and it has a fai...   Jan 11 2019, 04:45 PM
dr914@autoatlanta.com   we had our crazy irishmen do it. (crazy=irish?). ...   Jan 11 2019, 05:53 PM
dr914@autoatlanta.com   I will see if I can find headliner shots, here is ...   Jan 11 2019, 05:56 PM


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