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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 03-23-2013, 07:36 PM
  #5836  
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What should the order of parts be to use the associated slipper setup on the rb6 and what all is needed from the b4?
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Old 03-23-2013, 08:46 PM
  #5837  
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New editable setup sheet available.
Feel free for feedback
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Old 03-23-2013, 09:27 PM
  #5838  
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Originally Posted by Arn0
New editable setup sheet available.
Feel free for feedback
Looks good!
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Old 03-23-2013, 11:04 PM
  #5839  
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What's the mod setup many are using? Im looking to try something new with more of a planted rear end vs my standard Tebo style setup.
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Old 03-24-2013, 12:38 AM
  #5840  
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Originally Posted by B00t13g
What should the order of parts be to use the associated slipper setup on the rb6 and what all is needed from the b4?
B4 Pads and Spur
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Old 03-24-2013, 08:09 AM
  #5841  
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Is it necessary to run a servo saver on the RB6? Or does the standard plastic servo horn hold up just fine?
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Old 03-24-2013, 08:46 AM
  #5842  
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My plastic holds up just fine
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Old 03-24-2013, 09:07 AM
  #5843  
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Originally Posted by MikeXray
Ok, so someone was saying the avid/VTS combo fits, what backing plate are you using? the one from my B4 spaces it so far out, there is no way you can thread the nut/spring combo on. I could just dremel off the lip, but I'm curious if there is another plate that is being used. I ended up using the standard b4 setup for now.
I used a kyosho back plate. Then I had to grid off the area on the vts plate were the ae spring sits and goes around so I could use the kyosho spring. the k spring is shorter and allows u to get the nut on all the way to the nylon. Don't have my car here or I would post up some pics.
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Old 03-24-2013, 10:41 AM
  #5844  
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Originally Posted by B00t13g
What should the order of parts be to use the associated slipper setup on the rb6 and what all is needed from the b4?
Originally Posted by steam
B4 Pads and Spur
So im not so sure about this anymore. I have been running this combo since day 1, but now the more I look at it, I think the AE pads might be a bit too THIN actually, causing the Kyosho slipper disks to actually sit on top of the PLASTIC of the gear, and not the pads. (overlaps just a bit on each side of the octagon). (Maybe I have sanded my pads down too far?)I went back to the Kyosho spur gear / pads, and it's night and day better... BUT, I can't gear properly for 17.5 as the smallest spur I can find is a 76, and I can only fit a 30 pinion. (way under-geared)

So to get my car geared right for my last race of my points series last night, I decided to CA glue two sets of AE pads together and run them double thick. Seems to work just fine... but still doesn't feel as smooth as the kyosho slipper. (note, this makes the cost of pads twice as expensive, and you have to shim your dust cover out 1mm )

So I bought an avid.
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Old 03-24-2013, 10:47 AM
  #5845  
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Last night was the last race of our winter points series. 7 races with 1 drop. I had SC wrapped up going into the last night, but buggy came down to finish spots in it's last race. The RB6 just didn't have any flaws! Red army representing in a sea of B4s!
Attached Thumbnails Kyosho Ultima RB6 & RB6.6 Car Thread-kyosho_and_fantom.jpg  
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Old 03-24-2013, 10:54 AM
  #5846  
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Originally Posted by Cpt.America
So im not so sure about this anymore. I have been running this combo since day 1, but now the more I look at it, I think the AE pads might be a bit too THIN actually, causing the Kyosho slipper disks to actually sit on top of the PLASTIC of the gear, and not the pads. (overlaps just a bit on each side of the octagon). (Maybe I have sanded my pads down too far?)I went back to the Kyosho spur gear / pads, and it's night and day better... BUT, I can't gear properly for 17.5 as the smallest spur I can find is a 76, and I can only fit a 30 pinion. (way under-geared)

So to get my car geared right for my last race of my points series last night, I decided to CA glue two sets of AE pads together and run them double thick. Seems to work just fine... but still doesn't feel as smooth as the kyosho slipper. (note, this makes the cost of pads twice as expensive, and you have to shim your dust cover out 1mm )

So I bought an avid.
I said this many times and no one listened.
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Old 03-24-2013, 11:21 AM
  #5847  
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GITSUM is correct and this spur gear/slipper pad info should be added to the first post if you can do so Brandon...

If you want to run 17.5 stock with the Kyosho slipper assembly, the Losi (70t) spur & slipper pads are the only ones that allow you to use the stock Kyosho slipper disks, which rest on the pads entirely. The AE slipper pads wear down and the Kyosho slipper plates end up resting on the spur gear. I have tried all different types of Mfg's spur/slipper combos over the years with my K cars and the Losi spur/pads are the only the fit CORRECTLY

The AVID Slipper is a great upgrade if your budget allows and gives you the option of 66, 69 & 72t spurs if you run stock and need to reach a low FDR.

Last edited by desertracerdad; 03-24-2013 at 11:22 AM. Reason: Spelling
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Old 03-24-2013, 11:47 AM
  #5848  
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Default please HELP!

Just purchased new RB6... I have not raced 1/10 for a while??? Any advice, tips, must do's and dont's, consensus on mid engine and rear engine? I will be running initially outdoor med. track, moderate traction... transitioning to indoor clay in a few months....

Thanks,

Matt
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Old 03-24-2013, 11:48 AM
  #5849  
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Originally Posted by Cpt.America
Last night was the last race of our winter points series. 7 races with 1 drop. I had SC wrapped up going into the last night, but buggy came down to finish spots in it's last race. The RB6 just didn't have any flaws! Red army representing in a sea of B4s!
Great job Brandon!!!
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Old 03-24-2013, 12:02 PM
  #5850  
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Originally Posted by barton872
Just purchased new RB6... I have not raced 1/10 for a while??? Any advice, tips, must do's and dont's, consensus on mid engine and rear engine? I will be running initially outdoor med. track, moderate traction... transitioning to indoor clay in a few months....

Thanks,

Matt
Hey Matt,
If you haven't already, definitely read the 1st page of this thread as it has a lot of useful info posted. You would most likely benefit from building your 6 rear motor if its going to be run on dirt/clay or anything less than (extremely!) high grip traction (think Astroturf, carpet or most recently, SRS-Cactus). Several goods setups on KyoshoAmerica.com and Petitrc.com, along with pages of info here in this thread!
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