11-27-2010, 01:14 PM | #1 |
Rock Crawler Join Date: Jan 2006 Location: Southwestern Pa.
Posts: 866
| 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 01:19 PM. |
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11-27-2010, 01:43 PM | #2 |
Quarry Creeper Join Date: Aug 2010 Location: Sheboygan
Posts: 278
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Right side rear goes below and left side rear goes above, for the upper links.
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11-27-2010, 01:47 PM | #3 | |
RCC Addict Join Date: Jul 2009 Location: Santa Rosa, CA
Posts: 1,349
| Quote:
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. | |
11-27-2010, 02:06 PM | #4 |
Rock Crawler Join Date: Jan 2006 Location: Southwestern Pa.
Posts: 866
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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!!! |
11-27-2010, 06:47 PM | #5 |
RCC Addict Join Date: Jul 2009 Location: Santa Rosa, CA
Posts: 1,349
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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. |
11-27-2010, 06:50 PM | #6 |
cherry bomb Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
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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. |
11-27-2010, 07:15 PM | #7 | |
Rock Crawler Join Date: Jan 2006 Location: Southwestern Pa.
Posts: 866
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12-02-2010, 05:26 AM | #8 |
Rock Stacker Join Date: Nov 2010 Location: nunya
Posts: 51
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why would running a dig not allow you to mirror the trans
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12-02-2010, 05:58 AM | #9 |
I wanna be Dave Join Date: Oct 2007 Location: Scumrise, Flooriduh
Posts: 5,181
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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. |
12-02-2010, 12:23 PM | #10 |
Quarry Creeper Join Date: Jul 2008 Location: fremont
Posts: 265
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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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12-06-2010, 11:54 PM | #11 |
Rock Stacker Join Date: May 2010 Location: Killeen
Posts: 52
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12-07-2010, 06:25 AM | #12 |
I wanna be Dave Join Date: Oct 2007 Location: Scumrise, Flooriduh
Posts: 5,181
| 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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