SNAIL Forum Index SNAIL
☠ Vintage School 2CV
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Lowering... a few questions for the racers...
Goto page Previous  1, 2, 3, 4, 5, 6
 
Post new topic   Reply to topic    SNAIL Forum Index -> Technic
View previous topic :: View next topic  
Author Message
Harley
Dropped


Joined: 26 Nov 2007
Posts: 394
Location: Braidwood - Australia

PostPosted: Fri Feb 26, 2010 7:42 pm    Post subject: Reply with quote

Etienne wrote:
Sorry Harley but you're wrong !!!!

You need shorter stiffer spring in a 2 CV to drive low. In a 2 CV springs work in same way as a normal car. Only shocks absorbers work the other way !
And anyway, a short spring reacts differently than a long one. More the spring is compressed and harder it is. So a short spring is quicker harder on bumps than a long one. So a long spring is only adapted for high ground clearence.

When the 2 CV goes lower, the spring is compressed. So a shorter spring make the car lowered....


<<<< climbs back into hole...
_________________
Check out my Dinosaur www.youtube.com/watch?v=RPF_uU61als
Spot my 2cv Surprised www.youtube.com/watch?v=Zoq68CPLq4M
Back to top
View user's profile Send private message Visit poster's website
jack_blue_dyane
Dropped


Joined: 26 Jun 2010
Posts: 150
Location: Wadhurst,E-Sussex

PostPosted: Thu Jul 01, 2010 11:31 pm    Post subject: knife edge Reply with quote

i have a dyane and one of my rods snaped Sad
so i took it to a friend of my dads and he welded on a headless bolt. I wanted to drop it so all i did was unscrew it.

also a quick question do any of your lowered cars have any trouble through an mot, it isn't scraping height so would it be ok?


Last edited by jack_blue_dyane on Wed Jun 06, 2012 10:41 pm; edited 1 time in total
Back to top
View user's profile Send private message MSN Messenger
S O S
Snailer


Joined: 21 Jul 2009
Posts: 15
Location: The dreich North

PostPosted: Tue Aug 23, 2011 10:09 am    Post subject: Reply with quote

last page or so seems to have added confusion to the subject.

raising and lowering has little effect on the load on the spring, the car still has the same mass the spring has the same amount of give, There is a change in load due to the geometry of the cranked nature of the arms and the tie rod locations. This makes it feel as if the spring is softer.

If you lower your car on standard springs by lengthening the tie rod then there will still be the same amount of travel in the spring and you may well end up riding on the bump stops or bottoming out

lowering by fitting shorter springs has the advantage that a shorter spring is stiffer so there is more chance the spring can do its work without the suspension bottoming out. There is also less chance of having too little thread in the tie rod end.

Springs are just steel rods rolled up so they take up less space.
If you put one end of a steel rod in the vice and hang a weight on the free end then generally :-
a long rod will move more
a short rod less
a thicker rod also less
a short thick rod the least

a good spring manufacturer will be able to work out what you need taking in to consideration the diameter of the spring the amount of turns , free length and wire diameter.

shorter stiffer springs are available in the UK originally for the race cars.

S
_________________
Kissing the lash
Back to top
View user's profile Send private message
dule
Lowered


Joined: 06 Jan 2008
Posts: 590
Location: Zagreb, Croatia

PostPosted: Thu May 16, 2013 6:45 pm    Post subject: Reply with quote

Hi guys, I might have found a company here that could produce springs for the lowered 2cv...does any of you have the dimensions of the 179 ECAS springs, are they coiled in the same direction as the "normal" ones, how many bends/coils are there, is the material thicker than standard?

this company deals with all sorts of springs for tractors and agricultural machinery, their specialty is making springs and safety pins of all sizes

Any info will help, tnx;)
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    SNAIL Forum Index -> Technic All times are GMT + 2 Hours
Goto page Previous  1, 2, 3, 4, 5, 6
Page 6 of 6

 
Jump to:  
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 vote in polls in this forum


Powered by phpBB © phpBB Group. Hosted by phpBB.BizHat.com