Swing Arm ?

[money17]

Will rr swingarm adjustment, up adding bite and loosen car and down take away bite and tighten entry, be the same whether the shock and spring are on swingarm or birdcage?

[abe_05]

Rear springs adjustment on swing arm affects entry more than anything. When in throttle the car is up on bars and as you get out of throttle the car comes down on springs. This slamming effect gives most problems. Putting compression shock on left rear helps but putting softer springs makes it more forgiving and universal on dry and wet track (run 325-400 lr and 250-350 rr on swing arm) . Body roll is a big concern to control. Running stiff rr springs keeps bars fairly level and car level but can hurt drive but gives better side bite in slick. I go softer on rr when wet or tacky but never go over 350 rr in dry. As body rolls rr trailing arm drops hence giving more rr drive(same as dropping down a hole or two), only problem with going too soft is front pointing to the moon at times if too soft but as body rolls also gains in roll steer. Just a thought to give, I run smaller tracks were car stays rolled over.

[late96]

Can someone explain more on the compression shock cj is talking about?? Thanks

[dualdj1]

compression shock is to keep LR stood up when getting off the throttle.

[late96]

what is cj recomending and scale numbers with it? Thanks

[dualdj1]

no idea, don't ever talk to cj. use in the dry slick. smooths out the car for more consistent traction

[abe_05]

First, use compression on lr to loose up the car on entry. Use it in slick and you going to spin on entry. Using compression on lr keeps rear end rolled up and keeps roll steer in car, which will help car turn on entry on wet or tacky track. If you are loose in softin compression on lr, if tight on entry increase compression on lr shock (4 bar cars use compression lr on slick but not swing arm). For a good starting point on setup: 500lf 500rf 400lr 350rr, if track is fast or rough go 550 rf and 400rr. Keep 200-285 lbs lr 54.5 left 56 rear. Hopes this helps.

[dualdj1]

all depends on the setup. if you're on the purple bar (right side panhard) or the j-bar i'd tend to agree with you. running short left side bar car acts much more like 4-bar, even with swingarm lr, and you don't gain much roll steer from the left side. how much roll steer you gain from the right side depends on how much your car rolls over, ie rr spring. So the quantifying factor is not whether or not you are on swingarm, its which panhard bar you are using as well as rr spring, as to when you want compression shock.