Tamiya TA05 GRT: 55* Steering Mod

Post all of your steering modifications to get more angle and to fix ackerman on your chassis.
antinnous
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Tamiya TA05 GRT: 55* Steering Mod

Postby antinnous » Sat Oct 13, 2012 9:12 pm

55* Degree Steering Mod
Per piling request for my steering setup, here's a full write up for a DIY!

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(Full chassis setup at: viewtopic.php?f=34&t=2114&start=0)

Mod applies to the Tamiya TA05 with the Eagle Racing GRT conversion.

Parts needed:
-The extended arms (Part# 3860P15) come with the GRT kit, but if for some reason you need them, here they are:
http://www.broadtech.hk/eagleshop/shop/ ... id=3860P15
-The offset-ed extended arms (Part# 3711V2P5) are also bought from broadtech:
http://www.broadtech.hk/eagleshop/shop/ ... d=3711V2P5
-2x 20mm screw for steering rack
-2x 6.33mm spacer sleeve
-2x shorter turnbuckles
-55* or greater angle CVD's such as Square, OverDose, Active Hobby, or in this case, Eagle Racing (Part# 3867V2-46):
http://www.broadtech.hk/eagleshop/shop/ ... =3867V2-46

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Step 1:
We need to flip both the bearing sleeves and the Ball ends, upside down (ball end for the servo horn link stays the same).
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Step 2:
Let's space out the main steering rack bridge to 51.50mm.
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Step 3:
Take the 20mm screws and place it on the back hole of the steering rack mount.
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Step 4:
Insert 6.33mm sleeve first, and then the original washer that was originally mounted on top of the bearing/under the nut of the steering rack mount.
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Result:
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Step 5:
Take the extended arms (Part# 3860P15) and bolt them to the steering rack arms (aka wipers).
Be sure to screw on the grub screws to prevent skewing.
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The reason why we mounted on the back hole and raised the steering rack arms is to clear both the bulkhead and suspension blocks, at the same time still extending the steering sweep.
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The reason for flipping the steering rack bridge's ball ends is to create maximum clearance.
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Step 6:
Moving on to the upright (aka knuckle), I shaved the inner side for clearance issues at high angles.
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Also shaved a bit of the underside, enough to make it flush with the lower level.
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Step 7:
Now were going to install the offset-ed extended arms (Part# 3711V2P5).
The reason why were installing this offset-ed extended arms is because with the long sweep, the regular extended arms end up over-centering the steering link, causing lock up at full lock, the offset-ed ones prevent this from occurring.
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Again, don't forget the grub screws.
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This is the reason for shaving the underside.
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Step 9:
I forgot to mention these spacers at the very beginning, but these are needed to lift up the front upper deck.
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This is so the turnbuckle end has clearance against the front upper deck.
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Step 10:
Since everyone has different settings, just adjust ball end heights accordingly to your setup to avoid bump steer or any clearance issues.

There you have it, make sure to adjust your end points and toe angle!
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AzNPuLSe
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby AzNPuLSe » Mon Oct 22, 2012 9:44 am

Thanks for showing us how to increase the steering. The original EA steering does good but having more steering definitely helps.

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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby multi-bash » Mon Oct 22, 2012 4:22 pm

Greate write-up. Been looking for something like the offset arm extensions for my Cup Racer. Thanks!
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby ridinvintage » Wed Oct 31, 2012 7:41 pm

just did my mod thanks to you, just did a few things different b/c i'm running R31 suspension/steering. I mainly did this mod to get rid of some wobble I was having at full lock because of the angle of my linkage.

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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby valve_timing » Sat Nov 24, 2012 11:50 am

finished my high angle mod per anthony's write .. the angle is rediculous

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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby Spooke » Sun Nov 25, 2012 1:33 pm

Awesome guide Anthony! Just did the mod on my chassis today, not as much angle as yours but I'm restricted by my C-Hubs? They are very strange.

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Thanks though! :up:

antinnous
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby antinnous » Sun Nov 25, 2012 7:24 pm

AzNPuLSe wrote:Thanks for showing us how to increase the steering. The original EA steering does good but having more steering definitely helps.

you're welcome!

multi-bash wrote:Greate write-up. Been looking for something like the offset arm extensions for my Cup Racer. Thanks!

Welcome!

ridinvintage wrote:just did my mod thanks to you, just did a few things different b/c i'm running R31 suspension/steering. I mainly did this mod to get rid of some wobble I was having at full lock because of the angle of my linkage.

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did you still gain angle from before?

valve_timing wrote:finished my high angle mod per anthony's write .. the angle is rediculous

glad it worked out!

Spooke wrote:Awesome guide Anthony! Just did the mod on my chassis today, not as much angle as yours but I'm restricted by my C-Hubs? They are very strange.

Image

Thanks though! :up:


your c-hubs look like that of a yokomo dp basic, but its not. get stock ta05 c-hubs if you dont want to switch out the arms yet to v2.
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ridinvintage
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby ridinvintage » Tue Nov 27, 2012 9:31 pm

I was able to get more thanks to you, I didn't want to have to run a 10mm offset because alot of my bodies are 195mm. So I cut two pieces off of the plastic ta05 bulkheads and used those as offset extenders and they work great.
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AzNPuLSe
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby AzNPuLSe » Sat Dec 08, 2012 11:18 pm

Finally got around to doing the steering mod.

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antinnous
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Re: Tamiya TA05 GRT: 55* Steering Mod

Postby antinnous » Sun Dec 09, 2012 11:48 pm

looks great guys!
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