It is currently Sun May 03, 2026 5:19 am

Board index » Tech and Fab » Suspension and Chassis

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Mon Jan 17, 2011 5:21 am 
Offline
User avatar

Joined: Fri Jan 07, 2011 6:38 am
Posts: 132
Location: Chichester UK
Can anyone suggest a spring rate for the rear of my mid engine buggy? I've got some 16" long coilovers coming, but not sure where to start on spring rate


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 6:38 am 
Offline
WoodsBuggy Addict
User avatar

Joined: Mon Mar 16, 2009 12:37 am
Posts: 2737
Location: moulton,al
you need the weight of each rear wheel and then just call spring or shock company and they should be able to help you out

_________________
Just Stand On It!!!!

Chris


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 8:24 am 
Offline
User avatar

Joined: Fri Jan 07, 2011 6:38 am
Posts: 132
Location: Chichester UK
ridenrace6 wrote:
you need the weight of each rear wheel and then just call spring or shock company and they should be able to help you out


Tried that when I ordered the coilovers, but because this sort of application is unheardof here in the UK they couldn't help, other than "buy a 100lb and try, if its too soft buy some stiffer ones"


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 9:49 am 
Offline
BOTM Winner
User avatar

Joined: Sun Dec 02, 2007 10:52 pm
Posts: 1561
Location: Minford, Ohio
Give Downsouth Motorsports a call, he is the best guy to talk to when it comes to coilover shocks, Kings, Foxs, Sway-a-Ways brand shocks, here is a link to his website and phone number.......http://downsouthmotorsports.com and the number is toll free unless you order since you're in England, hopes this helps.

_________________
"Loud pipes saves lives"


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 11:15 am 
Offline
Master fabricator
User avatar

Joined: Fri Mar 02, 2007 11:55 pm
Posts: 2304
Location: S.W. Pa. Wellsville Water Cooled Chapter
Spring rate calculators.
http://f-o-a.com/
http://www.swayaway.com/TechRoom.php

_________________
Of all the things I've lost, I miss my mind the most.
M
A
G
A


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 11:41 am 
Offline
User avatar

Joined: Fri Jan 07, 2011 6:38 am
Posts: 132
Location: Chichester UK
Ahhh awesome Mike.. I'll dig out the corner weight gage later...


Top
 Profile  
 
PostPosted: Mon Jan 17, 2011 11:55 am 
Offline

Joined: Fri Mar 19, 2010 5:23 pm
Posts: 709
Location: UK
Fwiw, for the comping we aim at 3G of spring rate over the travel at the rear - i.e, if one rear corner has 500lb of weight on it and 10" of travel, I'd aim for a wheel rate of about 150lb/inch, if the coilovers hit ~8" down the arm then about 240lb/inch at the spring depending on the angle of the coilovers.


Depends on what you're doing really though, how much travel you have, whether you want a progressive setup, what the rear unsprung weight is, damping....... :lol:
I tend to go the opposite way to a lot over here and the more travel that becomes available the stiffer I'll go on the main spring - but make it shorter and run a longer, softer tender and let damping and extra droop travel do the work over the washboard stuff.


Top
 Profile  
 
PostPosted: Fri Jan 28, 2011 4:42 am 
Offline
User avatar

Joined: Fri Jan 07, 2011 6:38 am
Posts: 132
Location: Chichester UK
I used Mike's F O A calculation and came up with 220lb, so got some Faulkners 200lb springs and they're spot on with about 1/4 of preload.. I was so pleased I had to take it for an illegal night time blast :twisted:


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

Board index » Tech and Fab » Suspension and Chassis

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


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 phpBB® Forum Software © phpBB Group