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Old 11-27-2010, 02:14 PM   #1
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Default Shafty noob question...

Ok, building my AX-10 Sportsman Rig.....I run MOA in comp, and am getting some torque twist on steep high traction climbs. The rig is four linked front and rear. I see some rigs with the top links on the rear axle, one being on top and one underneath the attachment plate. Does that rid of some torque Twist (TT) , and if so which side goes top and which on goes on bottom? Or is it better to widen the attachment points? I hear of some stiffening a shock on opposite corners to fight the TT but that seems a little crude. What will take away the TT?

Thanks!!!

Last edited by Pappy; 11-27-2010 at 02:19 PM.
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Old 11-27-2010, 02:43 PM   #2
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Right side rear goes below and left side rear goes above, for the upper links.
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Old 11-27-2010, 02:47 PM   #3
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Originally Posted by Pappy View Post
Ok, building my AX-10 Sportsman Rig.....I run MOA in comp, and am getting some torque twist on steep high traction climbs. The rig is four linked front and rear. I see some rigs with the top links on the rear axle, one being on top and one underneath the attachment plate. Does that rid of some torque Twist (TT) , and if so which side goes top and which on goes on bottom? Or is it better to widen the attachment points? I hear of some stiffening a shock on opposite corners to fight the TT but that seems a little crude. What will take away the TT?

Thanks!!!

Stiffning up the rear driver side shock will help elimenate TT. If you were going to raise one of the 4-link bars up it would be rear driver side(so then passenger side would be down). People say having the rear uppers parrallel helps to(like the D-mount). If you haven't already mirrored your tranny do so. Having the battery on the front passenger tire side will help keep that front tire down. Also getting a good chassis with good suspension geometry helps a lot too.
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Old 11-27-2010, 03:06 PM   #4
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I jost got a Frogger Chassis and it seems pretty good so far. I would like more tuning option holes, but careful drilling can cure that. Any additional info is welcome...Thanks everyone!!!
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Old 11-27-2010, 07:47 PM   #5
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On the bottom links, on the axle side, you want the two as far away from each other as possible. On the skid plate side, you want them as close as possible. Talk to Casey about his setup as well.
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Old 11-27-2010, 07:50 PM   #6
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mirror tranny helped a ton, but was still existant, I just went 4 link (both links on the underside), and my TT is basicly non-existant, and I run same spring rate left to right (with the same pre-load).

if you're not going to run a dig unit, mirriored tranny is awesome.
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Old 11-27-2010, 08:15 PM   #7
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Originally Posted by fred0000 View Post
mirror tranny helped a ton, but was still existant, I just went 4 link (both links on the underside), and my TT is basicly non-existant, and I run same spring rate left to right (with the same pre-load).

if you're not going to run a dig unit, mirriored tranny is awesome.
I run nearly the same setup and it is very predictable and controllable, but I'm just always looking for more.
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Old 12-02-2010, 06:26 AM   #8
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why would running a dig not allow you to mirror the trans
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Old 12-02-2010, 06:58 AM   #9
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Pappy, other aids in ridding that pesky twist:

1) underdrive rear gears

2) thicker fluid in left rear (at least 60 wt)

I had better luck lowers equal length to uppers, mounted above the axle plate on the servo mounts. Put a 1/4" spacer under the link so it does not bind while articulating. The UGC D mount was even better, allowing the rod ends to be mounted on the sides created no bind as they get to move in the direction intended.
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Old 12-02-2010, 01:23 PM   #10
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i put overdrive gears in the front end of my rig. That made a noticeable difference in reducing tt
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Old 12-07-2010, 12:54 AM   #11
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Quote:
Originally Posted by charleshermanpipesjr View Post
why would running a dig not allow you to mirror the trans
same question here
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Old 12-07-2010, 07:25 AM   #12
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Quote:
Originally Posted by charleshermanpipesjr View Post
why would running a dig not allow you to mirror the trans
Because a "mirrored tranny" puts the motor facing forward on the right side of the rig and the spur facing backwards, the spur interferes with where the dig needs to be. you could put a dig on with a mirrored tranny, but it will lock and freewheel the front wheels not the rears.
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