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 )

> Suspension question..., ...probably for the racers amoung us
BMXerror
post Feb 15 2010, 07:27 PM
Post #1


Senior Member
***

Group: Members
Posts: 1,705
Joined: 8-April 06
From: Hesperia Ca
Member No.: 5,842



Anybody know the equivalent spring rates for some of the larger hollow torsion bars? 21-24 mm. I don't know what, say, '23mm' means in terms of spring rate at the wheel. Any help on where to find, or how to calculate such information would be great! Thanks.
Mark D.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
pcar916
post Feb 15 2010, 09:38 PM
Post #2


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None



Long ago I measured the coil-spring equivalent rate for mine (solid 23mm bars) but I don't recall the lever-arm measurement. That's the distance from the middle of the torsion bar to the center-line of the wheel. Whip out your tape-measure and find that one!

Here's a site with a calculator and the terms included.

http://www.alternativecarparts.com/utiliti...orsionbars.html

The assumption with this calculator is the torsional resistance of our T-bars. If any of us knows the right number here please give it up. (IMG:style_emoticons/default/piratenanner.gif)

Don't include the splined portion of the T-bars in the length of the torsion bar.

Here's another one...

http://www.circletrack.com/car_racing_calc...r/photo_01.html

Here's another site with more general information.

http://www.spring-makers-resource.net/torsion-springs.html

Have fun!



User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 11th July 2025 - 01:41 PM