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 )

13 Pages V « < 3 4 5 6 7 > »   
 Reply to this topicStart new topic
> How flexible do you think a stock, trailing arm is
Aaron Cox
post Dec 17 2005, 10:07 PM
Post #81


Professional Lawn Dart
***************

Group: Retired Admin
Posts: 24,541
Joined: 1-February 03
From: OC
Member No.: 219
Region Association: Southern California
QUOTE (McMark @ Dec 17 2005, 09:04 PM)
That arm has an option for increased shock travel? Am I interpreting that correctly?

good eye....

stock length shock on a lowered car - resulting in useful travel vs bottoming it out.....

(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rick 918-S
post Dec 17 2005, 10:31 PM
Post #82


Hey nice rack! -Celette
***************

Group: Members
Posts: 20,826
Joined: 30-December 02
From: Now in Superior WI
Member No.: 43
Region Association: Northstar Region
Oooo! shock travel= cool! (IMG:http://www.914world.com/bbs2/html/emoticons/drooley.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mugs914
post Dec 18 2005, 12:58 AM
Post #83


"Hey, yellow IS faster!"
***

Group: Members
Posts: 618
Joined: 22-July 05
From: Temple TEXAS
Member No.: 4,452
Region Association: Southwest Region
QUOTE (Aaron Cox @ Dec 17 2005, 08:07 PM)
QUOTE (McMark @ Dec 17 2005, 09:04 PM)
That arm has an option for increased shock travel?  Am I interpreting that correctly?

good eye....

stock length shock on a lowered car - resulting in useful travel vs bottoming it out.....

(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

Yup, bottoming out bad... (IMG:http://www.914world.com/bbs2/html/emoticons/boldblue.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/pinch.gif)

This gives almost two inches lower and keeps the stock travel.

If anyone wants a set, let me know... (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brett W
post Dec 18 2005, 01:03 AM
Post #84


Advanced Member
****

Group: Members
Posts: 2,858
Joined: 17-September 03
From: huntsville, al
Member No.: 1,169
Region Association: None
Why not just buy the shock with the right length?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Dec 18 2005, 05:31 AM
Post #85


I am Tangerine Racing
*****

Group: Members
Posts: 7,968
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE (Brett W @ Dec 18 2005, 02:03 AM)
Why not just buy the shock with the right length?

or raise the top perch.


Attached image(s)
Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Dec 18 2005, 05:33 AM
Post #86


I am Tangerine Racing
*****

Group: Members
Posts: 7,968
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE (Mugs914 @ Dec 17 2005, 10:30 PM)
Never have tested one, maybe we should send one out to you so it can be compared to others on the same rig. It would be nice to know if we are accomplishing anything.... (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

I'd be glad to do it! (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ein 6er
post Dec 18 2005, 08:56 AM
Post #87


Senior Member
***

Group: Benefactors
Posts: 1,115
Joined: 11-February 03
Member No.: 300
Region Association: None
good stuff here guys!!! (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif)

in the custom swing arm dept., here are a couple of shots of an arm on a twin turbo tube frame 914 i saw a pca club race at robeling road last year.

right side,
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ein 6er
post Dec 18 2005, 08:56 AM
Post #88


Senior Member
***

Group: Benefactors
Posts: 1,115
Joined: 11-February 03
Member No.: 300
Region Association: None
left side
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ein 6er
post Dec 18 2005, 08:58 AM
Post #89


Senior Member
***

Group: Benefactors
Posts: 1,115
Joined: 11-February 03
Member No.: 300
Region Association: None
right side
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
DJsRepS
post Dec 18 2005, 09:18 AM
Post #90


Member
**

Group: Members
Posts: 431
Joined: 4-November 04
From: Sarasota Florida
Member No.: 3,060
QUOTE (TimT @ Dec 16 2005, 07:41 PM)
Put the level on the trailing arm, not the lever

let all pieces be at rest, zero the level, given the odd profile of the trailing arm.. maybe some foam or balsa wood will be needed to make a suitable platform for the level

the reason I say this is there is deflection/movement in the plate that you bolted to the bearing keeper

In all testing and modeling are good... 1 deg at 1G wonder what they were designed for ?

Right on Tim! totaly agree more accurate test results.

Make a rig on the arm to support the level.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
DJsRepS
post Dec 18 2005, 09:20 AM
Post #91


Member
**

Group: Members
Posts: 431
Joined: 4-November 04
From: Sarasota Florida
Member No.: 3,060
Woah I replied to Tim's post before seing 5 pages here. A little too quick there.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brett W
post Dec 18 2005, 09:43 AM
Post #92


Advanced Member
****

Group: Members
Posts: 2,858
Joined: 17-September 03
From: huntsville, al
Member No.: 1,169
Region Association: None
That is Andy McNeal, I believe. That car is super bomb bad ass. Twin turbo 3.4 and fully custom tube chassis. I don't have a scanner so I can't scan teh 15-20 some odd pictures of the car.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ein 6er
post Dec 18 2005, 10:14 AM
Post #93


Senior Member
***

Group: Benefactors
Posts: 1,115
Joined: 11-February 03
Member No.: 300
Region Association: None
QUOTE (Brett W @ Dec 18 2005, 07:43 AM)
That is Andy McNeal, I believe. That car is super bomb bad ass. Twin turbo 3.4 and fully custom tube chassis. I don't have a scanner so I can't scan teh 15-20 some odd pictures of the car.

i don't know who's it is. it was being ran/maintained by a shop in N.C. IIRC it qualified with the fastest time of all there that day, but never raced.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Dec 18 2005, 11:35 AM
Post #94


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

Group: Members
Posts: 17,150
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None
strange idea to see where the twisting starts:

cover the trailing arm in a non-flexible coating such as plaster of paris or sheetrock mud....when dried, it should crack as soon as the twisting starts

I'm thinking that instead of covering the entire arm all at once, just do 6 inch sections or so at a time.....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Dec 19 2005, 09:08 PM
Post #95


Custom Member
***************

Group: Members
Posts: 24,663
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
so, is carbon fiber an option here..

Can it be effectively bonded to steel...

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Dec 20 2005, 05:29 AM
Post #96


I am Tangerine Racing
*****

Group: Members
Posts: 7,968
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE (r_towle @ Dec 19 2005, 10:08 PM)
so, is carbon fiber an option here..

Can it be effectively bonded to steel...

Rich

I suppose you could make trailing arms out of CF that would be quite stiff.
Dunno about trying to accomplish stiffening by bonding CF to a stock arm. A lot quicker to do a little welding. (IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Bleyseng
post Dec 20 2005, 08:23 AM
Post #97


Aircooled Baby!
**********

Group: Members
Posts: 13,036
Joined: 27-December 02
From: Seattle, Washington (for now)
Member No.: 24
Region Association: Pacific Northwest
(IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif)


you could just pour hot liquid sugar over it, that stuff when it cools will crack alot under movement.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Dec 21 2005, 09:07 AM
Post #98


I am Tangerine Racing
*****

Group: Members
Posts: 7,968
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
Here's a diagram of what I intend to try next. Move the slice forward (to the right) about 3", and add a diagonal plate inside as well.
BTW, some further testing revealed that the pivot tube does flex outboard of where the box section attaches. I will investigate this in more detail as well.


Attached image(s)
Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
r_towle
post Dec 21 2005, 09:13 AM
Post #99


Custom Member
***************

Group: Members
Posts: 24,663
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Chris, this looks great...though I would not trust my welding on that one....

It does make me think though...

In the longitudinal, where the heater pipe penetrates the inner long, could this type of bracing assist in stiffening that area..

I know in a pure race car, that pipe can be deleted...

But in a street car with heat, could you put plates all around that pipe and connect the inner and outer long in that area to assist in stiffening the car?

Keep in mind...im going in soon...as soon as my kids car is off my beloved jack stands...

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mrdezyne
post Dec 23 2005, 03:47 PM
Post #100


Now on larger rolling jack stands!
**

Group: Members
Posts: 468
Joined: 31-July 05
From: Tulsa, OK
Member No.: 4,510
(IMG:http://www.914world.com/bbs2/html/emoticons/popcorn[1].gif)

Just waiting for more! Good reading....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

13 Pages V « < 3 4 5 6 7 > » 
Reply to this topicStart new topic
34 User(s) are reading this topic (34 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: 28th December 2024 - 07:35 AM
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 ...