Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

4 Pages V « < 2 3 4  
 Reply to this topicStart new topic
> I bought my roll cage today, Autopower bolt-in
brant
post Dec 10 2006, 01:41 PM
Post #61


914 Wizard
**********

Group: Members
Posts: 11,622
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
QUOTE(914forme @ Dec 10 2006, 11:50 AM) *

Brant why you like the lower bar so much? I have my ideas, but just want verification.


The rear lower bar (behind the seats) is about safety and not chassis stiffness.

Look at most cages, and all bolt in cages.
If a race 914 is T-boned at the rear edge of the door, the chassis can move in a foot. This observation is based on actual 914 race cars from colorado.

now think about the driver.
the drivers elbow and hip are very much within that crumple zone.

The lower firewall structure is the only thing keeping this from happening on a stock chassis. Its not up to the task. The rear lower bar ties the cage back into itself and adds A LOT of strength and safety.

in my opinion race cars are more likely to get T-boned, then they are to go on their top.
Thus I feel this bar is more important than the hoop parts of the cage from a driver safety standpoint.

brant
User is online!Profile CardPM
Go to the top of the page
+Quote Post
DanT
post Dec 10 2006, 01:51 PM
Post #62


Going back to the Dark Side!
****

Group: Members
Posts: 4,300
Joined: 4-October 04
From: Auburn, CA
Member No.: 2,880
Region Association: None
(IMG:style_emoticons/default/agree.gif) Every stockish 914 I have ever seen roll over, the targa bar remained intact so the rear hoop didn't even come into play..the hoop that is important is the windshield hoop for roll overs. (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Randal
post Dec 10 2006, 02:52 PM
Post #63


Advanced Member
****

Group: Members
Posts: 4,446
Joined: 29-May 03
From: Los Altos, CA
Member No.: 750
QUOTE(trekkor @ Dec 9 2006, 12:43 PM) *

The Engman kit is under an 1/8" thick.

The base of my cage for bolt-in installs is 3/16" thick.
2 1/2"x 5" bolt plates.

I want to weld these to the top of the longs.
Also use a matching plate under the car that I can bolt through and weld to the underside.

The tube is 1 3/4" OD and 1/8" wall thickness ( .125" )

Nate, I would like to get that tube. How long of a piece( s ) do you have?

Randal, do you have some pics of the knee bar?


KT




The cage was put in when the car was stock. As I've said I've never hit the dash bar.

Attached Image

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
grantsfo
post Dec 10 2006, 09:08 PM
Post #64


Arrrrhhhh!
****

Group: Members
Posts: 4,327
Joined: 16-March 03
Member No.: 433
Region Association: None
Thanks Brant and Randal, Those cages look great!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeroen
post Dec 11 2006, 02:20 PM
Post #65


914 Guru
*****

Group: Members
Posts: 7,887
Joined: 24-December 02
From: The Netherlands
Member No.: 3
Region Association: Europe
JP, does this mean you cut your windshield?
(maybe I missed the post)

(IMG:http://www.914world.com/bbs2/uploads/post-45-1165633156.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
PatW
post Dec 11 2006, 04:13 PM
Post #66


Wassup?
***

Group: Benefactors
Posts: 565
Joined: 19-February 03
From: Rocklin, CA
Member No.: 317
Region Association: Northern California
Not that I know Jack Sh!t anymore but, does anyone bring their 914 to Tony at
TC Design for cage install?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jd74914
post Dec 11 2006, 04:48 PM
Post #67


Its alive
****

Group: Members
Posts: 4,780
Joined: 16-February 04
From: CT
Member No.: 1,659
Region Association: North East States
i think andy has a tony c cage
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Dec 11 2006, 04:53 PM
Post #68


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
Randal does, as well. (IMG:style_emoticons/default/wink.gif)



KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
PatW
post Dec 11 2006, 05:09 PM
Post #69


Wassup?
***

Group: Benefactors
Posts: 565
Joined: 19-February 03
From: Rocklin, CA
Member No.: 317
Region Association: Northern California
I took a ride in Rob Ways car before he sold it.. had a Petty <sp?> Bar installed. Stiff as a board IMHO.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Dec 11 2006, 06:21 PM
Post #70


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
history.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Dec 24 2006, 01:10 AM
Post #71


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I'm still in the same spot. No cage install as of yet.

Maybe in the next week or two.


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
DanT
post Dec 24 2006, 01:25 AM
Post #72


Going back to the Dark Side!
****

Group: Members
Posts: 4,300
Joined: 4-October 04
From: Auburn, CA
Member No.: 2,880
Region Association: None
Well Trek, you suck as bad as I do....I have yet to get my motor out...now it looks like it might be a few more weeks before I get it out...

My car might be part of a 914 display at the San Jose Auto Show in mid Jan '07.

Still waiting to get details... (IMG:style_emoticons/default/smile.gif)

Anyway....have a Merry Christmas and I will see you soon... (IMG:style_emoticons/default/smile.gif)

feels familiar here somewhat...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Randal
post Dec 29 2006, 12:10 PM
Post #73


Advanced Member
****

Group: Members
Posts: 4,446
Joined: 29-May 03
From: Los Altos, CA
Member No.: 750
QUOTE(trekkor @ Dec 11 2006, 02:53 PM) *

Randal does, as well. (IMG:style_emoticons/default/wink.gif)



KT



Trekkor - my cage was built by a guy (Ken Brown) up in Reno that does lots of work on historic racers. Great fabricator.

This was before I knew Tony, which is where I would go now.

Randal
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Dec 30 2006, 02:49 PM
Post #74


914 Freak!
***************

Group: Members
Posts: 17,146
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None
QUOTE(PatW @ Dec 11 2006, 02:13 PM) *

Not that I know Jack Sh!t anymore but, does anyone bring their 914 to Tony at
TC Design for cage install?



My old car with the TCDesignfab.com cage (now DarrenD has it)

(IMG:http://www.914world.com/bbs2/uploads/post-2-1078875491.jpg)
(IMG:http://www.914world.com/bbs2/uploads/post-2-1078875531.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
crash914
post Dec 30 2006, 06:53 PM
Post #75


its a mystery to me
***

Group: Members
Posts: 1,826
Joined: 17-March 03
From: Marriottsville, MD
Member No.: 434
Region Association: MidAtlantic Region
Just a comment on crashes...

I did have a head on in my '74. body was tweaked in at least 3 planes...the left from wheel was pushed in at least a foot. Took out my left foot. 1 big screw later it is ok...this was about 14 years ago when I wasn't as smart.

it would be good to have some beef down to keep the wheels from moving to the center line... The dash bar should help, but I would like to see something further forward perhaps at the front of the wheel wells...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · The Paddock · Next Newest »
 

4 Pages V « < 2 3 4
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 7th May 2024 - 07:07 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...