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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
Last edit by: tobamiester
RB6.6 Kyosho America Product Page: http://www.kyoshoamerica.com/ULTIMA-...T_p_24505.html

RB6.6 Manual http://www.kyosho.com/jpn/support/in...A_RB6_6_IM.pdf

RB6.6 Kyosho Youtube https://www.youtube.com/watch?v=vW_sR667utY

MSRP $639 MAP $399.99

-------------------------------
New RB6.6 parts (compared exploded views, prices and links are Kyosho America):

Chassis:
  1. Main chassis - UM731 - $125.99
  2. Side guards - UM732 - $9.99

Battery Holder:
  1. Battery plate - UM733 - $8.99
  2. Battery foam - UM741 - $7.99

Rear Bulkheads:
  1. MM3 and Laydown - UM740 - $9.99
    • MM3 bulkhead
    • Laydown bulkhead
    • Swaybar Holders

3 Gear Transmission (MM and RM):
  1. Transmission - UM734 - $10.99
    • transmission cases
    • spacers
    • caps
    • plastic FR & RR suspension hangers

  2. Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):
  1. Transmission - UM736 - $10.99
    • transmission cases
    • spacers
    • caps
    • required extra hardware
    • pastic FR suspension hanger

  2. 40T idler - UM737 - $6.99
  3. Motor plate - UM738 - $18.99
  4. Gear cover - UM739 - $6.99

Body:
  1. Blade body - UMB05 - $27.99

Optional Parts:
  1. Lightweigt Blade body - UMB05LW - $31.99
  2. Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
  3. Brass FR suspension hanger - UMW725B - $30.99 (looks more different than UMW725..someone confirm?)

Typical Upgrades for new RB6.6 Buyers

UMW701 Aluminum Steering Plate (RB6)
UMW702 Aluminum Crank Arm (RB6)
UMW704-0 V2 Aluminum Rear Hub Set(0°/RB6)
UMW705B Aluminum Rear Sus. Holder (RF/RB6.6) or brass UMW725B
UMW707 Aluminum Rear Sus. Holder (RR-Mid)

Nice to have:

UMW723 Aluminum Front Sus Block (Type B/10g/RB6/RT6/SC6).


Aftermarket Parts:

Front Wing: https://www.prolineracing.com/perfor...mount-alum-rb6

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Old 10-13-2012, 03:22 AM
  #1471  
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Originally Posted by Posvar
Hey guys. I am on step 10 and have a quick question....the Japanese set up calls for a caster block setting of 4 degrees. Is that achieved by using the hub bushings (a4 and b4)?

Thanks.
yes
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Old 10-13-2012, 05:27 AM
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Originally Posted by Energyzer
I'll use an arm reamer or some other hardware to get some plastic off... This does not happen in an Xray kit for example... It's my first Kyosho though.
Funny thing, I've never had to ream the inner suspension holes out on my K cars but I have had to on my T3'11 and T3'12.
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Old 10-13-2012, 05:29 AM
  #1473  
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Originally Posted by Yeti AS3
Some more Yoshi love.
Finally sprayed the body after 2 weeks of running a stickered up body Red seems to be the thing now, so i went another route.
Looking fantastic, as always Curt!
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Old 10-13-2012, 05:32 AM
  #1474  
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The tranny is done but there is a little side to side play with my diff. Is this normal? It's not much.......
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Old 10-13-2012, 06:19 AM
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Originally Posted by Posvar
The tranny is done but there is a little side to side play with my diff. Is this normal? It's not much.......

mine moves <0.5mm. Probably around 0.3.

If you're worried, you could shim it.
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Old 10-13-2012, 06:23 AM
  #1476  
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Japanese setup, except .5 rear carriers and running in saddle config. Totally hard to gauge the traction as the track was slicker than snot(everyone had trouble). Car jumps/lands like a dream. Had lots of steering once I found the right fronts in the 2nd heat. I could take The triple that is normally a double single much more consistently(as long as I felt like I had the traction) and was lined up and clear the table top/single more consistently.

I think I'm going to try full stick pack as the japanese setup next time and maybe play with shorty and use foams for placement.
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Old 10-13-2012, 06:38 AM
  #1477  
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Originally Posted by jordy-15
Can i ask where did you get that CF battery strap and brace
from?
cheers
I made the strap and brace at work last night. I would make them if I knew the CNC would be open, but I never know how much work I will walk into each day.
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Old 10-13-2012, 06:57 AM
  #1478  
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Question guys my buggy is coming does the rb5 big bores fit the same on the rb6 just want to know for a extra pair of shocks. Thanks
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Old 10-13-2012, 07:19 AM
  #1479  
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Originally Posted by gas1313
Question guys my buggy is coming does the rb5 big bores fit the same on the rb6 just want to know for a extra pair of shocks. Thanks
Yes but your other pair won't have the new caps
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Old 10-13-2012, 07:33 AM
  #1480  
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Originally Posted by gas1313
Question guys my buggy is coming does the rb5 big bores fit the same on the rb6 just want to know for a extra pair of shocks. Thanks
Yes they are the same size length and use the same springs. The RB6 has new single piece aluminum caps which you can buy if you want them to be exactly the same...
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Old 10-13-2012, 09:44 AM
  #1481  
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Thanks for the tips guys! Made it to step 20. Lol
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Old 10-13-2012, 10:23 AM
  #1482  
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.....
Last edited by BranVita; 10-13-2012 at 03:33 PM.
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Old 10-13-2012, 01:58 PM
  #1483  
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Here is a pic of my thumb screw down. I scribed a line on the under side of my battery strap and cut there with a strong razor knife. about 1~2mm of drilling the hole for the screw to go in it got really easy as it gets hollow from the bottom for the M3 screw. I cut the heads off of 2 15 or 16mm M4 screws, so about 7mm is on each side.
Attached Thumbnails Kyosho Ultima RB6 &amp; RB6.6 Car Thread-20121013_151947.jpg  
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Old 10-13-2012, 02:14 PM
  #1484  
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New RB6 pron.
Attached Thumbnails Kyosho Ultima RB6 &amp; RB6.6 Car Thread-img_0556.jpg  
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Old 10-13-2012, 04:59 PM
  #1485  
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Any Saturday race reports?
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