LocostUSA.com

Learning how to build Lotus Seven replicas...together!
It is currently December 3, 2016, 12:41 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: upright length?
PostPosted: April 26, 2012, 6:49 pm 
Offline
User avatar

Joined: January 30, 2012, 9:13 am
Posts: 261
i've been drawing a home made upright that will get my upper a-arm at a better angle for camber change during body roll.

the question is:
is there a negative affect from extending the upper part of the upright? that is, what relationship should there be between the spindle center line and the upper and lower ball joints?
Fred V

_________________
Fred V
www.jzrusa2.blogspot.com


Top
 Profile  
Reply with quote  
 Post subject: Re: upright length?
PostPosted: April 27, 2012, 8:52 am 
Offline
User avatar

Joined: November 12, 2008, 6:29 am
Posts: 3412
There's bonuses for making the lower BJ as low as possible (as close to the ground as possible) - production cars tend to have high lower BJ's for ground clearance reasons.

The higher the upper BJ the less stresses it will suffer and the less play will affect dynamics especially if you are using rubber bushes.

The downside of a large BJ 'spread' is weight and space as the upright is simply bigger.


Top
 Profile  
Reply with quote  
 Post subject: Re: upright length?
PostPosted: April 28, 2012, 11:12 pm 
Offline
User avatar

Joined: January 30, 2012, 9:13 am
Posts: 261
thanks. so far what i think i'm seeing when using "wishbone" program is that raising the upright as opposed to lowering the upper arm pivot is the roll center seems to have a great deal of lateral movement with the tall upright. i'll mess with it some more to confirm this. so far my drawings are not exactly comparable.
Fred V

_________________
Fred V
www.jzrusa2.blogspot.com


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
POWERED_BY