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Tamiya TRF419

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Old 10-09-2018, 12:38 PM
  #4126  
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I know that a lot of people are saying use one size shim versus another. At the end of the day, the correct shim to use is the one that provide the least amount of slop while not creating too much friction. In otherwords, you need to pay attention when you are sliding the pin into the rear of the outdrive. Do you notice any space between the shim and the pin? If so, increase the shim size. With the new shim, does the outdrive and the diff housing spin independently? If so you are good. If not you need to reduce the shim shize and use a larger o ring. Its all about the balance between slop and free action.
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Old 10-09-2018, 01:17 PM
  #4127  
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Tamiya should bring out a blue X-ring for the diffs. Like the blue TRF X-rings for dampers. The sealing area with those rings is bigger than with conventional o-rings and you can squeeze them with a shim without increasing friction.

And X-rings are definitely better for rotating parts, like in real cars.

Last edited by Tom1977; 10-09-2018 at 01:38 PM.
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Old 10-10-2018, 06:25 AM
  #4128  
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Setup question :

My car seems to push during corner entry then it will turn into the corner.

Advice on how to remedy this?
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Old 10-10-2018, 06:01 PM
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Originally Posted by airbiscuit View Post
Setup question :

My car seems to push during corner entry then it will turn into the corner.

Advice on how to remedy this?
hard to say without knowing your set up.

any of the following could help..
1. Increase droop in front
2. Stand up shocks in front
3. Increase steering dual rate.. 2 points at a time
4. Increase front camber 0.5į
5. Lower front roll centre by using shorter camber link spacer
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Old 10-10-2018, 10:40 PM
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Originally Posted by Raman View Post


hard to say without knowing your set up.

any of the following could help..
1. Increase droop in front
2. Stand up shocks in front
3. Increase steering dual rate.. 2 points at a time
4. Increase front camber 0.5į
5. Lower front roll centre by using shorter camber link spacer
Just what I need. Things that can be done quickly while out on the track.

Thanks!
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Old 10-11-2018, 07:14 PM
  #4131  
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the new BD9 now has roll bars with bearing support.. so Tamiya wasnít the last one to join the party! TC 7 still doesnít have it
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Old 10-14-2018, 08:39 AM
  #4132  
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How much difference is there in the new steer rack? Is the amount of play reduced enough to make it worth the upgrade?
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Old 10-14-2018, 12:27 PM
  #4133  
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Iím not aware of any new steering rack. Itís been the same since the 419
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Old 10-14-2018, 12:37 PM
  #4134  
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Hi all, in case you are interested contact me. Cheers, Marton

https://www.rctech.net/forum/r-c-ite...l#post15316830
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Old 10-16-2018, 11:48 AM
  #4135  
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Hi Folks,

long time no see in this Forum...

I finally made it to prepare a video, which I have shared on Youtube related to Tamiya Suspension Mounts. Despite the voice is in german I have added some english subtitles. Depending on the feedback, I am also thinking about to make more videos in english with german subtitles, as this would reach much more TRF racers around the globe.

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Old 10-18-2018, 10:45 AM
  #4136  
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I just switched to the aluminum diff cover and got the diff shims.....NO MORE LEAKING DIFF! Oh happy day!!!! I was having to rebuild my car after each race before
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Old 10-18-2018, 11:44 AM
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Originally Posted by Nortran11 View Post
I just switched to the aluminum diff cover and got the diff shims.....NO MORE LEAKING DIFF! Oh happy day!!!! I was having to rebuild my car after each race before
Glad to hear that!
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Old 10-18-2018, 06:19 PM
  #4138  
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I was only able to get 1 run before the rain came in, but Im happy to say there wasnt any leaks from the aluminum diff as well
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Old 10-19-2018, 08:54 AM
  #4139  
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I finally ordered a couple aluminum diff halves from overseas. I was waiting for Tamiya America, but who knows when they will stock them. I'll be on the stock plastic another weekend until they come in, but can't wait to try them and see if I notice any on-track difference.
- Jose
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Old 10-19-2018, 06:27 PM
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Originally Posted by ittjv View Post
I finally ordered a couple aluminum diff halves from overseas. I was waiting for Tamiya America, but who knows when they will stock them. I'll be on the stock plastic another weekend until they come in, but can't wait to try them and see if I notice any on-track difference.
- Jose
Which website did you ordered yours from?
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