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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 01-30-2014, 06:46 AM
  #9601  
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I run 33/72 with a Schuur Speed motor....32° endbell timing.
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Old 01-30-2014, 06:54 AM
  #9602  
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Originally Posted by MikeXray
That's still very high on gearing for a 17.5, most run 30-33/69.
+1 with the d3.5 with a Ht rotor, an max timing I always ended up with 31-69. That always felt the best for overall power on the bottom and top end.
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Old 01-30-2014, 06:57 AM
  #9603  
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I run 35/69 with 17.5 Killshot HT rotor and stator 40deg on the endbell, motor temp about 110deg
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Old 01-30-2014, 06:59 AM
  #9604  
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^^^^ At 35/69 Are you running the STRC motor plate in order to have it fit? I know that gives you one more tooth or so over the stock plate. Mine is at 33/69 and temps are 95-100 so I am adding a tooth.
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Old 01-30-2014, 07:03 AM
  #9605  
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32/66 on mine that was when it was 1560g now it's 1499 I might be able to go 33
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Old 01-30-2014, 07:03 AM
  #9606  
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You can run 35-69 on the stock kyosho plate, but not any more than that...
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Old 01-30-2014, 07:11 AM
  #9607  
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I need to try a 69t this Saturday.
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Old 01-30-2014, 07:12 AM
  #9608  
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Originally Posted by whitrzac
You can run 35-69 on the stock kyosho plate, but not any more than that...
Cool. I tried that but it made me uncomfortable if there was any movement at all. It was TIGHT!

Matt
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Old 01-30-2014, 07:59 AM
  #9609  
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Man, the LW Blade body is like paper! Gonna spray bomb it solid white amd hit the track tomorrow, hoping to get some good runs in...my car got a fresh B-fast diff, new Savox 1251 lo-pro servo and Kyosho LW body.....between the body and servo I shaved 32g off my car.
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Old 01-30-2014, 09:44 AM
  #9610  
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Originally Posted by MikeXray
That's still very high on gearing for a 17.5, most run 30-33/69.
I did forget to mention Im running the broad range rotor, my buddy is geared 32\69 on a tekin Gen 2 and I can out motor him basically everywhere on our track. I'm sure with a different motor id be geared more similar to the standard
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Old 01-30-2014, 09:48 AM
  #9611  
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Anyone running mod with lightweight chassis, or just for stock? Thx
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Old 01-30-2014, 01:12 PM
  #9612  
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Originally Posted by Posvar
^^^^ At 35/69 Are you running the STRC motor plate in order to have it fit? I know that gives you one more tooth or so over the stock plate. Mine is at 33/69 and temps are 95-100 so I am adding a tooth.
Stock motor plate, rear motor.
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Old 01-30-2014, 04:18 PM
  #9613  
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Originally Posted by Trevor Williams
I need to try a 69t this Saturday.
Thought smac was closed this Saturday?
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Old 01-30-2014, 04:50 PM
  #9614  
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Mr Tebo put his Reedy Race setup on his blog. Interesting stuff
http://jtprc.com/2014/01/30/rb6-reedy-race-setup/
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Old 01-30-2014, 05:11 PM
  #9615  
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Originally Posted by VenturaDC
Yes please do let us know, I had bad luck with my 5yo sons sct ready set shocks, which I've upgraded. Now he is really wanting a bugI y so was thinking the ready set rb6 but absolutely did not want to have to buy another set of big bores right away.
I had a few laps yesterday, out of the box it handles well. Made some adjustments on the rear shocks and it drives much better. Cleared a tabletop twice till i managed to broke the rear hub. Are the hubs on the pro kit and rtr the same? Same material? And just an update the shocks are still holding well.
Last edited by mog ruith; 01-30-2014 at 06:10 PM.
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