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4 link calculator qtn

General Tech Talk

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Posts: 450
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4 link calculator qtn

Post by get it up there »

Hello!! Im currently doing a 4 link conversion in the rear of my 1991 suzuki sierra. I've got all of the control arms, coils, coil mounts etc figuired out, but i just started playing with the 4link calculator - and buggered if i can get my head around it!! It appears that i need the following measurements for the calculator to work: Front and the rear un-sprung mass, the vehicle mass, the COG etc. But, the cab needs to be on for me to be able to get most of these measurements.. but i have already got my cab off!! I also cant figuire out all of this X Y Z stuff either :? Can anyone please give me some advise?? Thanks heaps :armsup:
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
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calculator

Post by micka1 »

Hey

I have just been playing with this stuff on my 40, will see how well i can help you out .
From what i can work out on the pirate calculator =-

x = length of control arm forward from centre line of rear axle to link end
y = 1/2 of horizontal separation of link ends at frame
z = height of link ends from ground

If you already have you coils and rates worked out then i guess your helfway there .

hope this helps

micka1
Posts: 450
Joined: Tue Jan 01, 2008 9:15 pm
Location: launceston, Tasmania

Post by get it up there »

uh huh... that does help a bit yeah.. thanks mate!! Just gotta work out the COG now.. then "hopefully" it will all start working!! argh... bloody confusing!!
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
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Post by v840 »

Working out your actual COG is close to impossible for the average DIYer but if you're super keen, read here: http://www.jeepaholics.com/tech/cog/

However, the generally accepted dodgy way is to measure from the top bolt on your car's bellhousing. Fair bit easier.



Also, read this: http://www.pirate4x4.com/forum/showthread.php?t=204893
Pretty much everything you wanted to know about the 4-link calculator from the guy who designed it.



If you haven't already, read this too: http://www.pirate4x4.com/forum/showthread.php?t=168577

Great way to get a further understanding of 4-links in laymans' terms


And a step by step guide to setting your links up here: http://www.muddtanks.com/4LinkSuspArticle.htm
|^^^^^^^^^^^^^^| ||
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Post by AFeral »

This is good basic ones good to help you get your head around things.

http://www.4x4.hr/2007/index.php?option ... 9&Itemid=9
Anything is possible, it just comes down to time and money.
Ferals build www.outerlimits4x4.com/ftopic164570.php
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Post by get it up there »

thanks heaps fellas :)
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
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