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Tamiya TB-03

Old 01-05-2016, 05:44 PM
  #2281  
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Originally Posted by Papi
No, TB-evo III is racing version of TB-02, they have many common parts. Take a look at Tamiya web, you can compare manuals
thanks!
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Old 04-08-2016, 07:31 AM
  #2282  
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Question: does anyone have a TB-03 built on the 3Racing chassis? I am looking for pics of the electronics installation, and specifically the steering servo.
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Old 06-17-2016, 11:19 AM
  #2283  
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I did a blog entry on my experience with TB03 for TQRC regional TCS race. I covered some of the things I learned with both the chassis and the Type C tires for TCS carpet events.

http://tobyrcadventure.blogspot.com/...gt2-class.html
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Old 06-18-2016, 11:19 AM
  #2284  
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Originally Posted by tobyzhang
I did a blog entry on my experience with TB03 for TQRC regional TCS race. I covered some of the things I learned with both the chassis and the Type C tires for TCS carpet events.

http://tobyrcadventure.blogspot.com/...gt2-class.html
Great writeup. Thank you for sharing.

I never tried to fit a TB04 geardiff in my TB03.

Do you think the new alu gear boxes will allow a tb04 geardiff to fit without grinding?
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Old 06-18-2016, 12:26 PM
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Originally Posted by torg
Great writeup. Thank you for sharing.

I never tried to fit a TB04 geardiff in my TB03.

Do you think the new alu gear boxes will allow a tb04 geardiff to fit without grinding?
The part numbers for the plastic gearbox are the same for TB03,TB04, and Evo6.
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Old 06-21-2016, 08:30 AM
  #2286  
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Originally Posted by torg
Great writeup. Thank you for sharing.

I never tried to fit a TB04 geardiff in my TB03.

Do you think the new alu gear boxes will allow a tb04 geardiff to fit without grinding?
well you only have to grid a little bit of the input shaft that the small bevel gear mounts to. You grind just a little bit so the shaft don't rub on the gear diff case and still allow the e clip to clip on. I heard some people did not have to do this even and can just directly drop the gear diff in.
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Old 06-21-2016, 09:15 AM
  #2287  
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Originally Posted by tobyzhang
well you only have to grid a little bit of the input shaft that the small bevel gear mounts to. You grind just a little bit so the shaft don't rub on the gear diff case and still allow the e clip to clip on. I heard some people did not have to do this even and can just directly drop the gear diff in.
Hey Tobyzang
For some how the TB03 inside gear box is a little smaller room than TB04 gear box..even so they look the same from the outside of the gear box..
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Old 06-21-2016, 09:18 AM
  #2288  
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Originally Posted by tobyzhang
I did a blog entry on my experience with TB03 for TQRC regional TCS race. I covered some of the things I learned with both the chassis and the Type C tires for TCS carpet events.

http://tobyrcadventure.blogspot.com/...gt2-class.html
Thanks for sharing Toby
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Old 06-21-2016, 11:33 AM
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Originally Posted by OVA
Hey Tobyzang
For some how the TB03 inside gear box is a little smaller room than TB04 gear box..even so they look the same from the outside of the gear box..
I'm pretty positive they use the same gear box. the reason you need to grid a bit is because the bevel gear shaft of the TB03 is longer than TB04. When they designed the TB03 they never intended to put a gear diff in hence the longer shaft.
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Old 06-21-2016, 03:27 PM
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Thanks Toby for great write up.

I use the gear diff on TB03 is was because much less maintenance than ball diff, it is not for performance gain at that time. we run few times in TQ but not much more. During practice for TCS national, we found the car is not much faster than ball diff in Tamiya track, and ball diff is easier to drive. But the gear diff can have same performance during three days race but ball diff not last.
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Old 06-22-2016, 12:22 AM
  #2291  
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Originally Posted by tobyzhang
Differential: The ball diff on TB03 gave me the greatest challenge for this race due to the TCS rule not allowing TB03 to use TB04 gear diff. TB03 Ball diff contains 9 balls over a relatively small diameter. This is probably sufficient in the days of brushed motors but in 17.5 brushless, the diff requires very high tension to not slip, especially in the small high traction track like TQRC.
One question what rule forbidds you to use TB04 gear diff? Would it allow to you use ball diff gear from TRF502x? It has 12 balls on sligthly larger diameter, which could help you. I use it in mine and works fine
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Old 06-22-2016, 02:08 AM
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Originally Posted by Papi
One question what rule forbidds you to use TB04 gear diff? Would it allow to you use ball diff gear from TRF502x? It has 12 balls on sligthly larger diameter, which could help you. I use it in mine and works fine
Tamiya TCS race series rules has ruled out the use of the gear diff, not sure if it applies to using a slightly different ball diff gear with higher ball content. I've already asked about other rules similar to this and was told, " if not specified in the manual or kit, or as optional Tamiya produced hop up application for your specific chassis, then it is not legal for use in the TCS series".
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Old 06-22-2016, 05:07 PM
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Originally Posted by Papi
One question what rule forbidds you to use TB04 gear diff? Would it allow to you use ball diff gear from TRF502x? It has 12 balls on sligthly larger diameter, which could help you. I use it in mine and works fine
Unfortunately I cannot mix and match drive line parts for TCS series. It is a relatively new rule from 2014 so I had to stick with the stock diff. I feel the TB03 ball diff is pretty good for medium to large tracks but for a really tight track like TQRC it will struggle a bit.
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Old 06-22-2016, 05:25 PM
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Originally Posted by tobyzhang
Unfortunately I cannot mix and match drive line parts for TCS series. It is a relatively new rule from 2014 so I had to stick with the stock diff. I feel the TB03 ball diff is pretty good for medium to large tracks but for a really tight track like TQRC it will struggle a bit.
The ball diff works fine at TQ. Used it last year in TB03 without issue. The key is in the grease. Need some heavy viscous action for it.
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Old 06-22-2016, 07:36 PM
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Originally Posted by greenpea76
The ball diff works fine at TQ. Used it last year in TB03 without issue. The key is in the grease. Need some heavy viscous action for it.
Agreed, your tb03 from last year looked great on track. Need to try that grease you showed me, the action is greatly improved with it. If it works I'll need to update my blog post for sure.
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