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Tamiya TRF415

Old 05-03-2004, 06:25 AM
  #2026  
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Originally posted by tamiyadriver
well, i did finally succeed in getting mine locked front and center. did the usual filing trick on the center, and used lots of Yokomo parts for the front diff... works great! let me know if you need any details on that swap...
Well done TamiyaDriver. I'm still in the process of doing the same mods on my 415 coz' the track @ my place is not that much suitable for dual one way set-up. The track I normally race has medium bite and more on the technical side of track layout. I was considering of getting a spool and having the center locked but also would like to have a front diff like my 414M.

If you can, can you post a detailed list of the Yok parts (part #s)needed to make up the front diff and mods (if any) and the same for the center shaft. For the center I know we need to use avail 415 parts. Really will appreciate you sharing w/ fellow 415ers the mods you made since it looks like Tamiya have no plans of coming out w/ a front diff & center locked pulley set-up.

Jun R.
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Old 05-03-2004, 06:28 AM
  #2027  
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Originally posted by Rick Draper
Just been on speedtechs site as i want a 415 spool but i cannot find them listed. Where can i get them from? Rick
Steve (SpeedTech) is coming out w/ the 415 spool. Expect it this week or next.
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Old 05-03-2004, 07:07 AM
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Rick the final parts should have been finished on Sat PM so expect them at Speedtech hopefully next week.
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Old 05-03-2004, 07:09 AM
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thats no problem at all... for the diff, i used thrust assy and outdrives from the old belt Yoke MR4TC, which will accept either Yoke or Evo3 diff rings. of course, the 415 rear pulley and 3mm diff balls have to be used up front, too... this fits perfectly in the bulkheads, no shimming or machining necessary.

the next problem was the driveshafts were too short to reach the diff, soooo... again MR4TC belt rear drives were handy, plus they were the blue lightweights, so it almost matched.

the hardest part was to find 6x11 bearings, coz the Yoke cvd's have a 6mm o.d. but i found some made by... Tamiya! fits something in a truck trans, i think.

i will grab some part #s and some pix when i get home later this evening...

Last edited by Turbonium; 05-03-2004 at 07:21 AM.
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Old 05-03-2004, 07:48 AM
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Originally posted by markp27
I've tried several solutions to the one-way problem and non have provided me with the solution I'm happy with - I too was thinking of maybe jumping ship. But as I've already got a stack of EVO III parts, I'll leave the swap until I run out of bits. How many parts are common between the EVO III (Surikarn) and the 415?
A Arms, Damper, and some suspension block (but they are red in EVO). TRF415 has the ability to turns like the EVO with the ease of belt drive maintanance and durability. Just use Surikarn's setup I posted last time in this forum.. works great on tarmac.
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Old 05-03-2004, 08:20 AM
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Originally posted by Pyramid
A Arms, Damper, and some suspension block (but they are red in EVO). TRF415 has the ability to turns like the EVO with the ease of belt drive maintanance and durability. Just use Surikarn's setup I posted last time in this forum.. works great on tarmac.
Can you repost please, or PM to me if you dont mind
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Old 05-03-2004, 08:35 AM
  #2032  
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Originally posted by Pyramid
A Arms, Damper, and some suspension block (but they are red in EVO). TRF415 has the ability to turns like the EVO with the ease of belt drive maintanance and durability. Just use Surikarn's setup I posted last time in this forum.. works great on tarmac.
Thanks Pyramid! We seem to have similar tastes

Cheers, Mark.
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Old 05-03-2004, 08:41 AM
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Originally posted by Pyramid
A Arms, Damper, and some suspension block (but they are red in EVO). TRF415 has the ability to turns like the EVO with the ease of belt drive maintanance and durability. Just use Surikarn's setup I posted last time in this forum.. works great on tarmac.
Bro hope you can send it to my PM.. I'll try it in my friends kit.. thanks...
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Old 05-03-2004, 09:08 AM
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Originally posted by Difuser
Rick the final parts should have been finished on Sat PM so expect them at Speedtech hopefully next week.
Thanks Dan, got to order a fair few of them so i will send steve a email now.

Ran the 415 on saturday and sunday, its still lacking but i have come to the conclusion that its the tamiya A and B tyres as the car is far better on take off tyres. Rick
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Old 05-03-2004, 11:18 AM
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where did you race it mate?
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Old 05-03-2004, 11:18 AM
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where did you race it mate?
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Old 05-03-2004, 11:35 AM
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Default Front diff

hey, just a quick question im thinking of getting a 415 and the only thing bothering me is the fact that i heard that they dont make a front diff for the caris this true and if so is there an after market one, or a mod that can be made
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Old 05-03-2004, 11:52 AM
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Originally posted by tamiyadriver
well, i did finally succeed in getting mine locked front and center. did the usual filing trick on the center, and used lots of Yokomo parts for the front diff... works great! let me know if you need any details on that swap...
Any and all details will be a great help.
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Old 05-03-2004, 08:23 PM
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Originally posted by FUK_WRX
Can you repost please, or PM to me if you dont mind
And to Wency.. I will just repost the original here so everyone could use and try..

PS: What I do not understand is the 4mm spacer on rear side of front arm becuase 3.5mm I believe is the maximum. Drive greats on Tarmac! just be sure your belt is very loose (max of two tighter clicks from original point) in order to last 8 minutes on 23T stock racing no clipping every other tooth needed. Aslo, he mentioned that the soon to be available worldwide, the delrin rear diff outdrive, is not perfect to his knowledge because it expand when turning. He prefer to use the original black plastic outdrive. Or maybe Tamiya has upgraded the release for better strenght?
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Old 05-03-2004, 08:37 PM
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Originally posted by Pyramid
And to Wency.. I will just repost the original here so everyone could use and try..

PS: What I do not understand is the 4mm spacer on rear side of front arm becuase 3.5mm I believe is the maximum. Drive greats on Tarmac! just be sure your belt is very loose (max of two tighter clicks from original point) in order to last 8 minutes on 23T stock racing no clipping every other tooth needed. Aslo, he mentioned that the soon to be available worldwide, the delrin rear diff outdrive, is not perfect to his knowledge because it expand when turning. He prefer to use the original black plastic outdrive. Or maybe Tamiya has upgraded the release for better strenght?
Thanks, im going to apply it with stock, we dont have much 23T classes here
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