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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
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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 12-29-2014, 08:14 PM
  #11386  
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I just put the Zach Rogers setup up to a T on my car. Moved the speedo/battery and receiver in the same spots. Might try it out this weekend, not sure yet.
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Old 12-29-2014, 09:10 PM
  #11387  
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Originally Posted by 3srcracing
I just put the Zach Rogers setup up to a T on my car. Moved the speedo/battery and receiver in the same spots. Might try it out this weekend, not sure yet.
Hope your competitors don't forget their wood screws... 'Cause you're gonna blow their doors completely off.
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Old 12-30-2014, 01:53 AM
  #11388  
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I went speedo in front of the battery because I want the battery as far back as I can get it for extra rear weight.
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Old 12-30-2014, 02:39 AM
  #11389  
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Originally Posted by gillbily23
I went speedo in front of the battery because I want the battery as far back as I can get it for extra rear weight.
How does that compare with battery all the way back with ESC on the shelf above the battery by the motor guard?
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Old 12-30-2014, 09:14 PM
  #11390  
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Originally Posted by K_King
Finally finished how I wanted to mount it.
Did you drill extra holes to get the battery strap that far back?
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Old 12-31-2014, 08:47 AM
  #11391  
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Default Slipper build question

Hi all,
I'm building my new RB6, and have a question about the slipper assembly. In the manual it says to "remove flashing" from the spur gear. Can anyone confirm what this is referring to? What is the "flashing" on the gear? Thanks!
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Old 12-31-2014, 09:08 AM
  #11392  
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If there would be any flashing (extra plastic from the molding process) on the spur gear, it would be in the hole that the shaft goes thru.
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Old 12-31-2014, 09:29 AM
  #11393  
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Originally Posted by motorfinger
If there would be any flashing (extra plastic from the molding process) on the spur gear, it would be in the hole that the shaft goes thru.
Thanks.
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Old 12-31-2014, 09:40 AM
  #11394  
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Originally Posted by Jgins13
Hi all,
I'm building my new RB6, and have a question about the slipper assembly. In the manual it says to "remove flashing" from the spur gear. Can anyone confirm what this is referring to? What is the "flashing" on the gear? Thanks!
are you sure they didnt spell it "frashing" like they did on the alum hub carrier instructions?
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Old 12-31-2014, 04:48 PM
  #11395  
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Default zack vs. flat

curious as to what others have felt in the difference between the z.r. extra hole vs. the flat rear arms, in regards to handling. I've tried both, and favor the 3 hole (and so does your mom). it seems to have a much more tame rear end and overall is easier to drive.. however, the flat were a little faster,(high bite track) when i was able to run "perfect" laps.

thoughts...?
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Old 12-31-2014, 05:18 PM
  #11396  
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Originally Posted by RichD
How does that compare with battery all the way back with ESC on the shelf above the battery by the motor guard?
I haven't tried it with the ESC up top but I may try that after running this way for a bit. I prefer to have as much weight down low as possible and I am not sure I would be able to fit the body on it with my ESC on top of the shelf. I could relocate the fan and see if it would fit that way.
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Old 12-31-2014, 06:48 PM
  #11397  
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Originally Posted by cactuskdogg
curious as to what others have felt in the difference between the z.r. extra hole vs. the flat rear arms, in regards to handling. I've tried both, and favor the 3 hole (and so does your mom). it seems to have a much more tame rear end and overall is easier to drive.. however, the flat were a little faster,(high bite track) when i was able to run "perfect" laps.

thoughts...?
I agree the flat arms felt more nimble but also prefer the glue-like feeling of the ZR setup.
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Old 12-31-2014, 07:26 PM
  #11398  
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Two ?'s anyone using Futaba bls471 servo and the third hole. Is it inside or out side?
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Old 12-31-2014, 09:07 PM
  #11399  
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Originally Posted by cactuskdogg
curious as to what others have felt in the difference between the z.r. extra hole vs. the flat rear arms, in regards to handling. I've tried both, and favor the 3 hole (and so does your mom). it seems to have a much more tame rear end and overall is easier to drive.. however, the flat were a little faster,(high bite track) when i was able to run "perfect" laps.

thoughts...?
Flat arms keeps the car flatter through the corners. I like how the RB6 arms jump as well.
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Old 01-01-2015, 04:04 PM
  #11400  
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Originally Posted by cactuskdogg
curious as to what others have felt in the difference between the z.r. extra hole vs. the flat rear arms, in regards to handling. I've tried both, and favor the 3 hole (and so does your mom). it seems to have a much more tame rear end and overall is easier to drive.. however, the flat were a little faster,(high bite track) when i was able to run "perfect" laps.

thoughts...?
My mom likes zack rodgers too
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