info on 4-link

[86rocktoy]

i'm stuck!! i dont  know what to do for my 4-link rear? what do you guys think? i dont know a good length or geometry of anything? but they need to be bomb proof. any info would be appreciated.

[seanc]

a dual triangualted, seems to be favored with toyotas, a fuel cell is needed, and anti-squat numbers of less than 100% are generally obtained. i would go with some good quality self-lubricating teflon-lined QA1 hiems. also .380 wall lowers and .250 wall uppers. there is a good free 4 link calculator on the pirate board.

[86rocktoy]

thank you i'm headed to the pirate board right now!

[hudlenutz]

What I'd consider a 'quick and dirty' on a basic 4-link geometry:

http://4wheeloffroad.com/techarticles/suspension/131_0307_link/

If you've got a decent library around:

Race Car Vehicle Dynamics by Miliken and Miliken
Vehicle Dynamics by Thomas Gilespie

Also, the Pirate board as mentioned above.

Lower links should be as long as practical to minimize induced flex-steer.  Upper links I'm thinking ~60-70% of the lowers.  Numbers for anisquat and such can be found on Pirate.

Good luck with your suspension, and post pics when you're working on it.