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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech Forums Thread 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 11-26-2012, 10:42 PM   #2896
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Does anyone think the new Avid pistons are of any interest. There seems to be a lot of talk about people wanting to test out new pistons from the stock ones in the box.

I am thinking about picking up a set of them.
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Old 11-26-2012, 10:43 PM   #2897
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Originally Posted by Johnn27 View Post
Does anyone know if the strc rb5 aluminum pivot blocks will fit the RB6 and if they are narrow or wide ??
Yes, they fit but they are the narrow holders.
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Old 11-26-2012, 10:43 PM   #2898
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have u guys had any problems with the chassis bending??? tweaking?
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Old 11-26-2012, 11:59 PM   #2899
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Originally Posted by LOSIRACER77 View Post
have u guys had any problems with the chassis bending??? tweaking?
Just checked mine today aa matter of fact. I run on a track with large jumps and I have cased many. Running max flex (no screws in side pods) I don't have any tweak issues.
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Old 11-27-2012, 03:10 AM   #2900
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Mine's almost ready... body and wheels, and she's good to go to her first race Saturday morning!

Question for you experts - when using a (non shorty) stick with MM you can't /aren't supposed to use the rear battery "box"... which means the lipo can move like 1/4 of an inch and hit the mill... am I missing something here?

Thanks!
Paul
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Old 11-27-2012, 04:43 AM   #2901
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Originally Posted by OnRDPassion View Post
Does anyone think the new Avid pistons are of any interest. There seems to be a lot of talk about people wanting to test out new pistons from the stock ones in the box.

I am thinking about picking up a set of them.
let us know how they work. i like that they addressed blow-by with their design.
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Old 11-27-2012, 05:40 AM   #2902
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Originally Posted by Lonestar View Post
Mine's almost ready... body and wheels, and she's good to go to her first race Saturday morning!

Question for you experts - when using a (non shorty) stick with MM you can't /aren't supposed to use the rear battery "box"... which means the lipo can move like 1/4 of an inch and hit the mill... am I missing something here?

Thanks!
Paul
you won't like it with a long pack ,car is way to heavy also no place for electronics . and the balance is way off .
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Old 11-27-2012, 05:59 AM   #2903
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you won't like it with a long pack ,car is way to heavy also no place for electronics . and the balance is way off .
I don't have much of a choice... either sticks or nothing. The place for electronics, as said, is sorted out. The handling, we'll see... I understand it'll be front-heavier than usual... that's just the way it's gonna be

Paul
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Old 11-27-2012, 06:08 AM   #2904
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for those that are interested here are the race results from the latest video
Attached Files
File Type: pdf R4_Race_05_Buggy MOD_A-Main.pdf (30.3 KB, 77 views)
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Old 11-27-2012, 06:13 AM   #2905
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Originally Posted by Lonestar View Post
I don't have much of a choice... either sticks or nothing. The place for electronics, as said, is sorted out. The handling, we'll see... I understand it'll be front-heavier than usual... that's just the way it's gonna be

Paul
post up pics after it's finished
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Old 11-27-2012, 08:29 AM   #2906
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Quote:
Originally Posted by fastestwon View Post
you won't like it with a long pack ,car is way to heavy also no place for electronics . and the balance is way off .
Quote:
Originally Posted by Lonestar View Post
I don't have much of a choice... either sticks or nothing. The place for electronics, as said, is sorted out. The handling, we'll see... I understand it'll be front-heavier than usual... that's just the way it's gonna be

Paul
I run my RB6 with long stick lipos. I have my mini Spektrum reciever on the right side. Of the buggy. And I also put 14 grams of weight across (left side) from the reciever. This will help out the balance.

I have the front and back battery box in my RB6 too.
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Old 11-27-2012, 08:37 AM   #2907
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Quote:
Originally Posted by fastestwon View Post
you won't like it with a long pack ,car is way to heavy also no place for electronics . and the balance is way off .
hmmmmmm.
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Old 11-27-2012, 09:09 AM   #2908
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Default how my electronics are mounted

This is how my RB6 electronics are mounted.
(The caps for the Orion esc are mounted behind it and the shorty battery is all the way forward.)


Allen
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Kyosho Ultima RB6 & RB6.6 Car Thread-rb6-electronics.jpg  
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Old 11-27-2012, 09:26 AM   #2909
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Originally Posted by b4wires View Post
I run my RB6 with long stick lipos. I have my mini Spektrum reciever on the right side. Of the buggy. And I also put 14 grams of weight across (left side) from the reciever. This will help out the balance.

I have the front and back battery box in my RB6 too.
you do know we are talking about the car in MM configuration ?
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Old 11-27-2012, 09:32 AM   #2910
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Originally Posted by Lonestar View Post
I don't have much of a choice... either sticks or nothing. The place for electronics, as said, is sorted out. The handling, we'll see... I understand it'll be front-heavier than usual... that's just the way it's gonna be

Paul
When I first built my buggy, I tested it with both, a full size lipo (Orion 90C 5000mah) and a shorty (Orion 90C 4000mah). The full size lipo buggy felt planted, but lacked responsiveness and snap. Once I got the shorty pack settled in the chassis, it was an immediate difference in increased corner speed and handling response. It took me a few runs to get the shorty where I liked it in my chassis and when comparing lap times, the shorty did allow me to run quicker laps. The full size pack I do plan to run in my buggy where traction is lower (loam or dusty surfaces) and I need that planted feel. But for the sticky clay we have at WCRC, shorty's are the way to go in the RB6... 17.5T or Mod. That is my experience with both... Hope it helps
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