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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 10-13-2014, 07:51 PM   #10906
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I'm convinced mm will be better on my local low/medium bite clay indoor track with right setup. Love the corner speed it possesses. Interested in trying a rear stabilizer (sway) kit. Would a soft sway bar create more corner traction, if not.. What it's purpose? Thanks in advance.
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Old 10-13-2014, 08:53 PM   #10907
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Could someone in this tread do me a favor? I would like to know the shock shaft lengths and diameter. Also the piston exact diameter in mm for the rb6. I would like to find out if I can use the MIP bypass1 shock valves that fits the rb6 for my schumacher KF/KR.
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Old 10-13-2014, 09:59 PM   #10908
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Would anyone want to do a partial trade for a B44.2?
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Old 10-14-2014, 06:41 PM   #10909
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Whats everyone using as a shock package oil weight springs and pistons? Right now im using 1.6 2 hole int he front 1.7 2 hole inthe rear 35 wt front and rear
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Old 10-15-2014, 08:34 PM   #10910
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What upgrades would you guys say are needed right out of the box?
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Old 10-15-2014, 09:04 PM   #10911
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Quote:
Originally Posted by 3srcracing View Post
What upgrades would you guys say are needed right out of the box?
1). Aluminum steering rack
2). Aluminum rear hubs
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Old 10-15-2014, 09:37 PM   #10912
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Quote:
Originally Posted by rchogfan View Post
1). Aluminum steering rack
2). Aluminum rear hubs
+1
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Old 10-16-2014, 07:33 AM   #10913
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Hey guys I broke an aluminum steering bell crank last night and cant get a new one before saturdays race how bad are the plastic ones I still have the ones from my kit just wondering if they are worth trying?
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Old 10-16-2014, 07:49 AM   #10914
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They are bad
You could maybe use the plastic arm as the one that is not attached to the servo link. It will be less abused.

Drive carefully too
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Old 10-16-2014, 08:19 AM   #10915
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Does anyone know the amp draw of a 7.5 under high bite conditions ?
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Old 10-16-2014, 08:54 AM   #10916
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Quote:
Originally Posted by Jspires688 View Post
Hey guys I broke an aluminum steering bell crank last night and cant get a new one before saturdays race how bad are the plastic ones I still have the ones from my kit just wondering if they are worth trying?
I ran the stock bellcranks with the alum. ackerman rack for well over a year and a half with out issues. Don't see any reason they wouldn't work. I just switched to the alum. bellcranks though, but kept the plastic kit ones as back ups.
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Old 10-16-2014, 08:58 AM   #10917
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I have had thecar since it came out and have only broken the stock plastic steering 2 times. It's plenty tough tough enough the only upgrades I have are the adjustable hangers and al .5 rear hubs.
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Old 10-16-2014, 10:23 AM   #10918
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Quote:
Originally Posted by Jspires688 View Post
Hey guys I broke an aluminum steering bell crank last night and cant get a new one before saturdays race how bad are the plastic ones I still have the ones from my kit just wondering if they are worth trying?
i only have the exotek slider..the arms are stock plastic..had this setup for a full season..i have the full aluminum kit for when these break..i believe the plastic was updated from the 1st batch years ago
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Old 10-16-2014, 11:11 AM   #10919
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Does the Exotek slider accomplish the same feeling as the Aluminum steering rack?

Is $500 for a roller to much? 3 weekends old with almost all the upgrades you can get on it.

Last edited by 3srcracing; 10-16-2014 at 11:42 AM.
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Old 10-16-2014, 12:01 PM   #10920
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Quote:
Originally Posted by 3srcracing View Post
Does the Exotek slider accomplish the same feeling as the Aluminum steering rack?

Is $500 for a roller to much? 3 weekends old with almost all the upgrades you can get on it.
most only use the alumium rack for strength..not sure on the feel? $500 is a lot for a used roller..350 tops for a car with all the options..i only want 250 for mine,another $100-150 and you can have most of the option stuff..you mainly need rear hubs..if you race stock the mip aluminum pucks
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