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Author Topic:   torque arm/ 5th coil
iaracer
Member
posted November 24, 2000 09:43 PM
I need information on the torque arm/5th coil set-up. 3/8 high banks... getts pretty dry, any help would be great. Thanks


bbracer17
Member
posted November 25, 2000 07:21 PM
What kind of rear suspension are you running?


iaracer
Member
posted November 25, 2000 11:45 PM
I am running swingarms, r slider behind and l is in front.


bbracer17
Member
posted November 26, 2000 11:24 AM
I think you would want to use a pullbar instead of the torque arm. When I ran mono leafs, the torque arm worked well but when I switched to a 2 link with the spring staggered like you mentioned I couldn't get decent forward bite. I switched to a pullbar and now it bites well. I think if I would have put the right side spring on top of the rear end the rear end could have rotated a little more to take advantage of the torque arm. You might try it both ways.


36k
Member
posted November 26, 2000 02:28 PM
On my monoleaf car we run a 36" 5th arm and usually a progressive spring. For me, the progressive works super on a dry slick track. If the track has a lot of bite we use a straight 325#. The car builder recommended a dampner shock on both the 5th arm and rear but after playing around some we chucked the shock completly on the 5th arm and replaced the 90/10 on the rear with a spring on a slider. It's harder on the life of the leafs but man does it hook up.


bbracer17
Member
posted November 27, 2000 10:34 PM
When I used it with mono leafs I mounted it closest to the center of the rear end as possible and angled it toward the right front of the car. I extended the arm some and the slider mounted to the very end of the arm 43 inches from the center of the axle tube. I used a progressive spring from Hypercoil. I think it was like a 175-500 lb rate. I also used a 90/10 on the rear end. I don't know if this is right but it seemed to work pretty good to me. I just couldn't get it to work with trailing arms. I guess if it was a 4-link or z-link with birdcages it would have worked. I wouldn't think a pull bar would be good with leafs, I think it would take the wrapping action away from the leafs. Just my opinion.


iaracer
Member
posted November 29, 2000 08:43 PM
Thanks for all the answers.. Now how about pro/cons between torque arm and pull-bar...


dirtrackracer
Member
posted November 30, 2000 05:12 PM
we used a mono leaf set up with a 5 1/2 spread on the rear of the springs. coil on the top of the rearend and a magic bar.
a 90/10 shock on the rearend this took away so forward bite but it stopped braking the monos


boris
Member
posted December 17, 2000 09:16 AM
I was wondering with a z-link is a shorter or longer torque arm better? And would it be the same on dry slick or tacky? Or would it be better to go solid pull bar on dry slick? Thanks for any info.


36k
Member
posted December 17, 2000 05:45 PM
AMRA96, whats a magic bar??


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