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Author Topic:   four bar left, swing arm/z link right
dirtracr
Dirt Maniac

Total posts: 199
posted September 19, 2004 04:10 PM  
dw8, would like to try four bar left, swing arm/z link on the right..run a 250 spring on left with spring behind, would appreciate any thoughts on what spring to put on rr on the arm...thanx..

thesmoothshoe
Dirt Roller

Total posts: 15
posted September 19, 2004 04:58 PM  
i have run this setup all season. started with 225 left 250 right, then went to 225's across the back. car has been very very fast on certain nights and tracks, but i'm trying some other things so i took my spring off the swingarm and put it on the birdcage...we'll see what happens there. might wanna use the calculator on this site to see what you'll have for springrate at the wheel with the spring you choose.

rpm20
Dirt Freak

Total posts: 338
posted September 20, 2004 08:35 PM  
i had the same setup on the same chassis, we had a 250 left behind the axle on the cage and a 225 on the right on the swingarm...we calculatred the spring rate at the wheel to be 115lbs (way too light)
we went to a 275 and it feels a lot better.

it will be tight so maybe use a rr trail of 1/4" and lead the left rear 1/4" to give you 1/2" of static rear steer. then also move the top of the pullbar 1" to the right of center, that will help loosen it up for you. it worked great for me.

dirtracr
Dirt Maniac

Total posts: 199
posted September 21, 2004 06:09 AM  
appreciate the input, thanks!!

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