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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 12-06-2012, 10:12 PM   #3181
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gunmetal narrow blocks:
kyoumw511
kyoumw512


gunmetal wide blocks:
kyoumw514
kyoumw515
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Old 12-06-2012, 10:18 PM   #3182
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So is it crucial to spend the extra $50 on the aluminum hubs for this car to get it dialed like was mentioned in previous pages? Or is it more of a "want" instead of a need for the car?
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Old 12-06-2012, 10:21 PM   #3183
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I just finished my build and about to finish the shocks.
What is a good starting point with the stock oil with white 5 hole pistons.
Running at OCRC and West Coast
Thanks
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Old 12-06-2012, 10:24 PM   #3184
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Quote:
Originally Posted by Outtacontrol58 View Post
So is it crucial to spend the extra $50 on the aluminum hubs for this car to get it dialed like was mentioned in previous pages? Or is it more of a "want" instead of a need for the car?
The aluminum hubs are mostly want. You do get a larger more dependable bearing on the outside, and more roll center adjustments, but it certainly isn't necessary. The only "need" (IMO) are aluminum rear suspension hangers.

Quote:
Originally Posted by ugottorc View Post
I just finished my build and about to finish the shocks.
What is a good starting point with the stock oil with white 5 hole pistons.
Running at OCRC and West Coast
Thanks
start with 37 front, 30 rear. (AE)
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Old 12-06-2012, 10:33 PM   #3185
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Thanks!
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Old 12-06-2012, 10:36 PM   #3186
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Quote:
Originally Posted by ugottorc View Post
I just finished my build and about to finish the shocks.
What is a good starting point with the stock oil with white 5 hole pistons.
Running at OCRC and West Coast
Thanks
This doesn't mean it will be the right thing for you, but it's a good reference point. The team drivers are running the new Kyosho blank pistons with rounded edges with four #55 holes drilled out and 30L f, 27.5L r. I opted for the 1.3mm GHEA four hole pistons, which are the same size but tapered on one side giving you faster rebound with slower dampening. You can also use the 55 four hole pistons from the Losi 22 if you don't want to drill your own.

Based on that, you'd probably want to try going up a little bit in oil weight if you're going to run five hole. But it all comes down to personal preference so start there and see how you like it.
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Old 12-06-2012, 10:42 PM   #3187
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I hear you. And just looking for a starting point. Drive it and go from there.
Lost of option for these shocks. That's for sure.
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Old 12-06-2012, 10:42 PM   #3188
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Nice meeting you last night Mike... aka MDowney....Hope you still had fun last night with us in expert stock buggy.
Nice meeting you guys too. I had a great time, even though I broke on the first couple of laps in the second heat and the main. Bad luck! The RB6 felt great though. Definitely need to throw out the old Reedy 4000 shorties. They suck. Already ordered something better.
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Old 12-06-2012, 10:57 PM   #3189
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I am going to stay up past my bed time tonight to setup the electronics in my new 6. Without looking through this entire thread does anyone have any pictures of their electronics install with shorty battery placement?

Besides, I barely can read and only look at pictures.

EDIT: I have a full size servo, Orion R10, small Airtronics RX, and already have the PT on top of the servo.
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Old 12-06-2012, 11:02 PM   #3190
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google images will be your friend
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Old 12-06-2012, 11:03 PM   #3191
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When using aluminum rear hubs in RB5 rear arms, do I use a grub screw in the aluminum hub to secure to arm pin?
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Old 12-06-2012, 11:08 PM   #3192
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Does anybody know if the AE hex fr and rr wheels will fit the rb6
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Old 12-07-2012, 03:43 AM   #3193
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Originally Posted by MikeGonzo View Post
Does anybody know if the AE hex fr and rr wheels will fit the rb6
I am mostly using the Jconcepts b4/RB5 wheels. I still have a B4 as well and share wheels. The fronts are perfect. The rears have about 1/2mm per side narrower offset than stock Kyosho wheels. If needed I just use Tamiya 1/2mm spacers from touring cars.
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Old 12-07-2012, 07:37 AM   #3194
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Originally Posted by lbckevin View Post
I cant paint at all. I have all of my paint work done by Mark T.

www.PaintMonsterAirbrushing.com
He definitely did a great job on those bodies.


Allen
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Old 12-07-2012, 08:25 AM   #3195
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Quote:
Originally Posted by Trevor Williams View Post
gunmetal narrow blocks:
kyoumw511
kyoumw512


gunmetal wide blocks:
kyoumw514
kyoumw515
what exactly are the differences between the two sets of blocks? are the changing the track width of the car?
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