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post #1 of (permalink) Old 09-22-2003, 01:29 PM Thread Starter
 
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Setting up a link suspension?

I've tried searching on pirate and can't find what i'm looking for. I'm looking for a 101 of setting up a 3 or 4 link rear suspension. I have no clue what squat or anti squat is or how to set it up right so i don't get rear steer. Is there a web site that explains all this in plain english or can some one give me the 101 on setting up a link suspension.

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post #2 of (permalink) Old 09-22-2003, 02:00 PM
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Re: Setting up a link suspension?

There were two issues of Peterson's this summer that went into good detail and an example of setting one up. I bought the second issue but not the first. They were June and July 2003.

They also recommended a few books:
Chassis Engineering by Herb Adams
Fundamentals of Vehicle Dynamics by Thomas D. Gillespie
Race Car Vehicle Dynamics by Milliken and Milliken

The article is what I am going to base my buildup on.
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post #3 of (permalink) Old 09-22-2003, 03:41 PM
 
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Re: Setting up a link suspension?

You couldnt find any link suspension tech info on the Pirate BBS?

I have found weeks worth of reading there, I guess you just have to know which to read and digest, and which to dismiss and ignore, or read it all then forget it all like me.



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post #4 of (permalink) Old 09-22-2003, 10:19 PM
 
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Re: Setting up a link suspension?

This thread has tons of great info,,,,,,,,,and tons of BS,,,,,,sort through it and you will be glad you did.

http://www.pirate4x4.com/forum/showt...+of+suspension

Research:
"how to find the center of gravity on your rig", "instant center", "roll center", "squat and anti-squat", "Horizontal and vertical link seperation",,,,you'll need to understand these to understand how to set-up the suspension.

As far as rockcrawler 4 links,,,, it's still being prefected(and always will be) so there is not really a simple "this is the way it's done" answer. After re-doing mine a few times(and years of researching about others) , this is what I am using now and it works as good or better then anything I seen. It's a double tri, 4 link. The uppers are are parallel with the ground with 32" of Horizontal seperation @ the frame and 4" @ the diff. The lowers have 14" at the Tcase output and 36" @ the axle tubes. The uppers are 34" long and the lower are 32" long. The vertical seperation is 6" @ the frame and 11" @ the axle. With this I have very close to 150 % anti-squat, no rear steer, and no "jacking", the axle does not try to "walk " under the rig during articulation, It always pushs the rig forward. I'm very pleased with it now and most likely do the same setup for the next rig.


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