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Author Topic:   swing arm right rear
bbracer17
Member
posted January 10, 2001 07:48 PM
Right now I'm running a standard three link with my right spring behing the axle. I want to move the spring but they way my chassis is built (home made) I can't put the spring on top of the axle. Has anyone tried a swing arm on the right rear and leave the left alone? Also how much heavier should I go on the spring, right now I run a 175.


MOD RACER#93
Member
posted January 10, 2001 08:18 PM
One track IMCA and one track UMP rules both unsanctioned. I would like to put a ***** jack with the spring on top of the rear end but the way the car is built I can't fit the spring in. Would moving the shock in front of the spring require a stiffer shock? Also would the swing arm be mounted at the same angle as the trailing arm was?


MOD RACER#93
Member
posted January 10, 2001 10:40 PM
I wouldn't want to mount the shock that far away from the wheel, if you going to move the spring up to the swingarm why not just put the shock back where the spring was. The 225lb should be comparable to the 175lb depending on how far up the arm you mount it


MOD RACER#93
Member
posted January 11, 2001 07:12 PM
Thanks for the input guys. I do agrre that the shock should be closer to the wheel, I had already planned on doig that. The shock in front of the spring on the swing arm might be ok for an extremely smooth track but I don't see how that would work on a rough track.


jammin
Administrator
posted January 12, 2001 10:06 PM
How can you control roll steer with a swingarm right rear?


bbracer17
Member
posted January 12, 2001 11:15 PM
Why would it be any different than a three link?


MOD RACER#93
Member
posted January 13, 2001 12:02 AM
It looks to me like when you would change angles of the RR arm...you would be changing angles of the spring compression, which would make it the actual spring rate different constantly throughout the movement of the arm each time you change it. Just like changing the lift bar. No difference. Sounds to me like it would be inconsistent from change to change.


bbracer17
Member
posted January 13, 2001 08:13 AM
I'm not sure if that is right or wrong but is something to think about. If that is true then why not just change the angle of the left rear arm for roll steer. I know it won't make quit as much difference but it does add or remove roll steer.


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