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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 04-27-2013, 10:13 PM   #6451
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sell car and troll other threads
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Old 04-27-2013, 11:05 PM   #6452
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Nah I am here to entertain you
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Old 04-27-2013, 11:23 PM   #6453
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Wild cats & wild gophers. All we need is a wild cherry and this thread will have it all!
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Old 04-28-2013, 05:54 AM   #6454
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Guys, I'll like to ask: when adjusting the diff, how many parts of a turns does each K 'click' translate to? 1/16? 1/8th turn? Cheers,
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Old 04-28-2013, 06:37 PM   #6455
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Anyone else notice the MID configuration causes the motor to run hot? I had to drop two teeth, and even ended up rigging a fan, the drivetrain feels plenty free, so I'm guessing it's from lack of airflow.
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Old 04-28-2013, 06:40 PM   #6456
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Mine runs warmer, but I didnt drop teeth.
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Old 04-28-2013, 07:11 PM   #6457
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Quote:
Originally Posted by MikeXray View Post
Anyone else notice the MID configuration causes the motor to run hot? I had to drop two teeth, and even ended up rigging a fan, the drivetrain feels plenty free, so I'm guessing it's from lack of airflow.
If I had to guess, you are spinning the tires more and maybe using the brakes more?? Just a guess.


Anyway got my car tonight. I can't wait to get this thing on the track.
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Old 04-28-2013, 07:14 PM   #6458
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Quote:
Originally Posted by Bob Barry View Post
If I had to guess, you are spinning the tires more and maybe using the brakes more?? Just a guess.


Anyway got my car tonight. I can't wait to get this thing on the track.
No, its just that the motor is within the body and not external. Thats a big difference.
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Old 04-28-2013, 07:32 PM   #6459
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ok, finished my first weekend on the buggy. Yesterday was loose outdoor and today was indoor med bite damp packed clay. All I needed to do was change tires between the 2 tracks. Like some said a few days ago, "It just works". Aside from the ugly body, I have no complaints about this buggy. Which is huge, because I find issues with everything, lol. A++ on the rb6. Also, i was using all stock parts but the exotec rack and I swapped out the steel pivot balls in the rear for the delrin. Both of these changes were for durability and nothing else. Nice job Kyosho.
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Old 04-28-2013, 11:28 PM   #6460
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I don't feel that there is any advantage, durability or otherwise, running the delrin balls over the steel balls when you're running the plastic suspension hangers.

I prefer running steel balls with plastic hangers, delrin balls with aluminium hangers.
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Old 04-29-2013, 12:37 AM   #6461
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Quote:
Originally Posted by eper View Post
the rear hangers are really the only fragile part of the car. that being said i would also carry hinge pins (rear). and we tend to loose the front pivot brace (aluminum) so maybe a couple of those in the pit bag is a good idea.. LIke i posted earlier i have found a way to better attach this brace and am in the final stges before i start a small production batch for all my red army buds
Any news on the front hinge brace? I'd love to see what you've come up with. I lost one and bent a second one this weekend and am in need of something better. Anyone know if the STRC one from the RB5 fits the RB6?
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Old 04-29-2013, 03:42 AM   #6462
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the strc one does not fit it was designed around the hingepin pivot block that was wider.. the pins ive come up with will be ready in about a month. my finances are extremely tight so im waiting to pay to have a batch produced
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Old 04-29-2013, 02:27 PM   #6463
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Quote:
Originally Posted by mike_d View Post
Any news on the front hinge brace? I'd love to see what you've come up with. I lost one and bent a second one this weekend and am in need of something better. Anyone know if the STRC one from the RB5 fits the RB6?
Losi xxx fits perfect and lasted longer for me. Still bent it eventually but took a lot longer . And its like 4$
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Old 04-29-2013, 03:37 PM   #6464
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Quote:
Originally Posted by silvalis View Post
I don't feel that there is any advantage, durability or otherwise, running the delrin balls over the steel balls when you're running the plastic suspension hangers.

I prefer running steel balls with plastic hangers, delrin balls with aluminium hangers.
Altough I mostly run the mid car, I found since July the rear got some serious slop after a while using the stock part (steel).
I was going to switch to aluminum hangers but as the RB6 mid ones haven't broke yet I kept using them but switch to delrin and there is still some slop but far less then with steel, no doubt about it, even after three months of continuous use.
I run on very high grip so lots of stress on moving parts.

That car is totally awesome, and I've tried a lot.
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Old 04-29-2013, 04:14 PM   #6465
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Quote:
Originally Posted by ryanpatrickgore View Post
Losi xxx fits perfect and lasted longer for me. Still bent it eventually but took a lot longer . And its like 4$
Is this the one?
http://www.ebay.com/itm/Hinge-Pin-Br...item1c32349103
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