 What do you have for chassis stiffening? |
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| Justinp71 |
 Sep 29 2008, 07:14 PM
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#1
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Senior Member  Group: Members Posts: 1,600 Joined: 11-October 04 From: Sacramento, CA Member No.: 2,922 Region Association: None 
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I put some more horsepower in my car, so far I have just autocrossed it on street tires. I have the bolt in roll bar that has the mid bar going to the floor.
Besides that my chassis is stock and I am wondering what I should do for more re-enforcement... so I can comfortably run on slicks. Below is a photo of the roll bar. I don't consider the roll bar to give to much chassis stiffening, but it just might help with cracking the longs. Edit: I mainly just use the car for street and the occasional Autocross or DE Attached image(s) 
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| sww914 |
Sep 29 2008, 11:40 PM
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#2
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
Judging from the cars that I've fixed, if you run hard suspension bushings and slicks without a cage tied in to the chassis you'll break the chassis eventually. The last one that I fixed had 15 breaks in the chassis behind the passenger's compartment.
I've been running my racecar for almost 10 years without any chassis reinforcement but I'm running DOT hoosiers (225's) and stock bushings, no cracks yet but it does flex around a bit. |
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Posts in this topic
Justinp71 What do you have for chassis stiffening? Sep 29 2008, 07:14 PM
SirAndy I've got a full cage but it's not tied int... Sep 29 2008, 09:04 PM dlestep ...I am welding the rear stiffening kit on my car ... Sep 29 2008, 11:42 PM
Justinp71
...I am welding the rear stiffening kit on my car... Oct 1 2008, 10:38 AM Joe Ricard Engman longs and a roll bar tied to rear shock tow... Sep 30 2008, 05:57 AM Justinp71 Thanks guys!
<_< It sounds like for t... Sep 30 2008, 07:07 PM dakotaewing I have Brad Maures (sp) Outer Long kit, and Chris... Sep 30 2008, 10:10 PM Justinp71
I have Brad Maures (sp) Outer Long kit, and Chris... Sep 30 2008, 11:05 PM jcd914 OK I guess maybe I should not be voting since the ... Sep 30 2008, 11:59 PM Justinp71 Well Thanks for posting anyhow Jim!
When you ... Oct 1 2008, 10:37 AM the4u2 how much flex is to much? have one that flex 8mm ,... Oct 1 2008, 01:07 PM J P Stein There are a pee pot load of do-dads sold to make y... Oct 2 2008, 08:58 AM 9146986 The last full project car I built had Brad Mayeur... Oct 2 2008, 08:59 AM naro914 I've been racing or DEing our 914 since 1994, ... Oct 2 2008, 08:14 PM Justinp71 Does the Engman kit reduce body flex? Or just keep... Oct 3 2008, 04:20 PM jcd914
Does the Engman kit reduce body flex? Or just kee... Oct 11 2008, 08:56 PM ConeDodger
Does the Engman kit reduce body flex? Or just kee... Dec 4 2008, 10:47 PM John An area that seems to crack and few discuss is whe... Oct 23 2008, 08:28 PM J P Stein Tieing in the longs to the towers is gud. Tieing i... Dec 7 2008, 02:30 PM Justinp71 Well my conclusion for my more street oriented car... Jan 14 2009, 01:20 AM 9146986 I forgot to add that I welded up all the seams I c... Jan 14 2009, 10:06 AM Justinp71 Did you race or a/x the car that you are describin... Jan 14 2009, 12:22 PM 9146986 The customer that I built the car for did autocros... Jan 14 2009, 12:37 PM Justinp71 No cage, correct? Jan 14 2009, 01:53 PM charliew What makes these little cars attractive is their l... Jan 16 2009, 08:48 AM Simon Tibbett I am new to 914's and looking into getting one... May 29 2009, 10:13 AM jt914-6 I have Brad's long. kit, GT kit, boxed trailin... Jun 1 2009, 08:50 AM jhadler In the first photo there, it looks like you are dr... Jun 1 2009, 02:11 PM jt914-6 Josh, yes I'm using the cooler heat for the wi... Jun 1 2009, 03:25 PM J P Stein After bonking my helmeted haid on my cage halo, I ... Jun 8 2009, 05:47 PM Joe Ricard JP would you please show me your engine lid?
Lik... Jun 9 2009, 05:51 AM J P Stein I don't have a pic of it, go figure.
I made a ... Jun 9 2009, 07:38 AM Joe Ricard Metal?
My car will have bare minimum of metal.... Jun 9 2009, 09:15 AM J P Stein
Metal?
My car will have bare minimum of metal... Jun 9 2009, 11:13 AM Joe Ricard Yea PM me with your thoughts.
I'm a looking a... Jun 9 2009, 11:26 AM J P Stein
Yea PM me with your thoughts.
I'm a looking ... Jun 9 2009, 02:51 PM Chris Hamilton Has anyone measured the amount of flex they had be... Aug 30 2009, 05:36 PM Britain Smith Didn't measure it, but we felt it in JP's ... Sep 17 2009, 11:54 AM Joe Ricard I can 3 point lift my car and it stays level.
get... Dec 9 2009, 07:11 AM Chris Hamilton Joe, My car does that with an autopower rollbar bo... Dec 12 2009, 03:55 PM J P Stein It doesn't take an engineering degree to see ... Dec 12 2009, 07:01 PM Randal
It doesn't take an engineering degree to see... Dec 12 2009, 10:05 PM J P Stein
I've taken JP's approach on adding fro... Dec 13 2009, 11:06 AM Randal
It doesn't take an engineering degree to se... Mar 31 2014, 07:59 PM Chris Hamilton
It doesn't take an engineering degree to see... Dec 13 2009, 03:02 PM J P Stein I've been building stuff for 40 odd years....m... Dec 13 2009, 04:00 PM Joe Ricard Chris there is no way your bolt in autopower cage ... Dec 13 2009, 05:14 PM J P Stein BTW, our trip down to your house at Marina was qua... Dec 13 2009, 05:56 PM Chris Hamilton JP, it will be fun to see how Andrew and Britain d... Dec 13 2009, 07:05 PM J P Stein Brit is headed down that way for the SD National T... Dec 14 2009, 08:30 AM Joe Ricard Raced in the little pond yesterday. PCA had an ev... Dec 14 2009, 10:52 AM Randal
Raced in the little pond yesterday. PCA had an e... Mar 31 2014, 08:02 PM Joe Ricard Geeze I was reading this thinking wtf did I do? ... Apr 1 2014, 05:53 AM Randal
Geeze I was reading this thinking wtf did I do? ... Apr 1 2014, 01:35 PM smokey My
Lilbasterd
Gets much stiffer wen chancing any... Jan 5 2015, 08:17 PM ThePaintedMan Dafuq? Jan 6 2015, 07:51 AM Bullethead How did this thread get reanimated? Last post was ... Sep 6 2023, 09:45 PM d914 egman inner longs
tangering racing rear console su... Oct 9 2023, 01:13 PM mlindner I had a full roll bar cage for many years. The las... Dec 1 2023, 04:35 PM brant
I had a full roll bar cage for many years. The la... Dec 2 2023, 08:31 AM mlindner Thanks brant. Was not intended for full racing. D... Dec 4 2023, 09:02 AM Charles Freeborn A 911 I'd be concerned about straying too far ... Jan 6 2024, 01:24 AM brant We learned a lot about rules during the build.
so ... Apr 26 2024, 01:43 PM |
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