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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 11-25-2013, 07:43 AM   #8746
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Does anyone know how long the screws are that hold the transmission case together? theyre the real long ones that hold the motor plate to the tranny. Thanks!
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Old 11-25-2013, 09:23 AM   #8747
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Does anyone know how long the screws are that hold the transmission case together? theyre the real long ones that hold the motor plate to the tranny. Thanks!

They are 3 x 35
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Old 11-25-2013, 05:01 PM   #8748
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Originally Posted by K_King View Post
Hey guys, been really working on my car in MM and weight distribution. I finally found something that is pretty easy to drive, but can turn on a dime if needed as well.

Our track is smooth right now, but can get bumpy, dusty and loose out of the groove.

Here's what I have done to the car to get the battery back as much as possible.





The only thing you need to do is modify the battery braces and shoe goo the RT6 part in place (it fits perfect) unless you want to drill 2 holes for it.


Also here is my current setup.

https://dl.dropboxusercontent.com/u/...Nov%202013.pdf
I did something similar, but I did drill the holes.


Here is something else I am working on.

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Old 11-25-2013, 05:36 PM   #8749
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I did the following so I could use a shorty both ways without needing to change anything in the car. The side pods are cut with a couple of foam spacers glued on either side, the motor cover is raised a few mm and I drilled new holes for the battery holder. With foam tape on only one side of the battery strap, changing battery positions is as simple as flipping the strap over and moving the battery.

Please excuse the wiring, I quickly ripped the electrics out of another car to test this out.

--Scott
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Kyosho Ultima RB6 & RB6.6 Car Thread-rb61.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-rb62.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-rb63.jpg  
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Old 11-25-2013, 06:04 PM   #8750
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Anybody know the part number for the shock cap o ring? It's listed as 162 in the exploded view
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Old 11-25-2013, 07:13 PM   #8751
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I just ordered a rb6. Gonna start with mm. I was wondering what parts and setup to start with ?
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Old 11-26-2013, 11:10 AM   #8752
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Originally Posted by yodace View Post
I just ordered a rb6. Gonna start with mm. I was wondering what parts and setup to start with ?
Check out the first post in this thread.
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Old 11-26-2013, 12:16 PM   #8753
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Ok
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Old 11-27-2013, 03:23 PM   #8754
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Quote:
Originally Posted by yodace View Post
I just ordered a rb6. Gonna start with mm. I was wondering what parts and setup to start with ?
Just an alloy steering rack the main thing yaiba one the cheepest I think and zx5 rear arms some good set ups on petit rc and maybe drop rodgerm a pm he's got a sweet base setup we use on low grip astro and it travels well with small changes most of us use shortys with rudebits holder
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Old 11-28-2013, 04:51 AM   #8755
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Hello

I'm just building the RB6 and have an issue with the small place for the servo (normal size) and the steering arm touch the the front "upper plate"
I know from earlier read that there is a trick to do there something but cannot find in the long thread. Could you please explain me what should I do there?

Thanks
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Old 11-28-2013, 05:21 AM   #8756
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So yesterday was the first time I broke a part on my rb6. The ball stud popped out of the c hub, any help in making this not happen again
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Old 11-28-2013, 08:48 AM   #8757
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I use a longer ball stud and a bolt on the other side of the hub. Easy!
You can also use a pinion screw (sorry, I don't remember the exact name) to close the unused holes so the hub is stronger.
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Old 11-28-2013, 09:00 AM   #8758
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Quote:
Originally Posted by klimag View Post
Hello

I'm just building the RB6 and have an issue with the small place for the servo (normal size) and the steering arm touch the the front "upper plate"
I know from earlier read that there is a trick to do there something but cannot find in the long thread. Could you please explain me what should I do there?

Thanks
so your saying that if you wanna use a hitec 7955 servo you have to mod something?
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Old 11-28-2013, 10:03 AM   #8759
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Quote:
Originally Posted by klimag View Post
Hello

I'm just building the RB6 and have an issue with the small place for the servo (normal size) and the steering arm touch the the front "upper plate"
I know from earlier read that there is a trick to do there something but cannot find in the long thread. Could you please explain me what should I do there?

Thanks
In the kit there should be some little papers with extra updated building separate then what the manual shows. It shows that you have to dermal the right and left side of the top bulk head in two little spots. So that the servo arms clear.
Hope this helps
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Old 11-28-2013, 10:37 AM   #8760
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Quote:
Originally Posted by klimag View Post
Hello

I'm just building the RB6 and have an issue with the small place for the servo (normal size) and the steering arm touch the the front "upper plate"
I know from earlier read that there is a trick to do there something but cannot find in the long thread. Could you please explain me what should I do there?

Thanks
I think you're talking about the two "ribs" that run length-wise under the front "upper plate"? My Yaiba steering arms also hit them. Just use a Dremel tool and grind them flush. No harm no foul.
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