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Kyosho Ultima RB6 & RB6.6 Car Thread

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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread 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 01-10-2014, 07:06 PM
  #9331  
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I am doing my assembly right now, parts I was waiting on came in today instead of tomorrow. You all are more than welcome to come watch my progress on the assembly @ http://www.justin.tv/greenleytv
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Old 01-10-2014, 07:22 PM
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Originally Posted by Jason.Dias
Yes. I got my mid motor down to 1420g. (light weight body + light weight chassis + carbon arms/knuckles/towers + mip puck system + avid slipper + titanium screws + AKA EVO wheels + reedy 4100 shorty lipo + HW3.1 esc + ko receiver + some other clever mods)

Going to switch to a low pro servo (-15g).

I've added 40grams on the rear bulk head where the sway bar mounts, and 50gram plate under the battery to get it legal.
Appreciate the input seems I have some wrenching to do....thanks!
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Old 01-10-2014, 07:59 PM
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Has anyone tried those exotek titanium front axles?
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Old 01-10-2014, 08:40 PM
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Finished up my kit. She drives beautifully, took her out for a first spin tonight Love how it jumps, incredibly smooth landings like it just floats on the ground.

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Old 01-10-2014, 11:54 PM
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7 hours 30 minutes into build and only piecing the tranny together lol.
Getting side tracked discussing what does what to those who are watching my live broadcast, still goin till I finish want to race tomorrow


http://www.justin.tv/greenleytv
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Old 01-11-2014, 03:10 AM
  #9336  
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Originally Posted by codeman
Finished up my kit. She drives beautifully, took her out for a first spin tonight Love how it jumps, incredibly smooth landings like it just floats on the ground.

Love the scheme. Is this Tammy orange ps7?
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Old 01-11-2014, 07:51 AM
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Originally Posted by gelshocker
Love the scheme. Is this Tammy orange ps7?
You got it PS7 Orange, PS3 Light Blue and PS1 White
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Old 01-11-2014, 08:36 AM
  #9338  
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do anyone know where I get a lightweight chassis from
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Old 01-11-2014, 10:47 AM
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do anyone know where I get a lightweight chassis from
Well a hobby shop in japan told me yesterday that they are not released yet and they can't order them, but should be out be the end of the month.

Seems some people got lucky and scored some from kyosho america. I say they will be everywhere by February.
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Old 01-11-2014, 02:01 PM
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Originally Posted by codeman
Finished up my kit. She drives beautifully, took her out for a first spin tonight Love how it jumps, incredibly smooth landings like it just floats on the ground.

Originally Posted by gelshocker
Love the scheme. Is this Tammy orange ps7?
Likewise I really like it simple but effective.
I normally just paint my cars one colour because I can't paint
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Old 01-11-2014, 03:38 PM
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Just wanna say that my buggy was absolutely dialed today. I turned an impossible 16 laps today on a track that hardly gives up 15's! Second place turned 14
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Old 01-11-2014, 04:18 PM
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Originally Posted by codeman
You got it PS7 Orange, PS3 Light Blue and PS1 White
Kewl! Add silver PS12 and black PS5 window rims
Attached Thumbnails Kyosho Ultima RB6 & RB6.6 Car Thread-img_8881.jpg  
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Old 01-11-2014, 05:19 PM
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Originally Posted by Tom87
Well a hobby shop in japan told me yesterday that they are not released yet and they can't order them, but should be out be the end of the month.

Seems some people got lucky and scored some from kyosho america. I say they will be everywhere by February.
Ok thanks
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Old 01-11-2014, 07:22 PM
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Kevin, I'm using ur setup for my mid motor car (the one with rt6 mod for the battery) nd the only thing I'm lacking is corner exit traction. What can I due to help rear end traction. The front end is great! Thanks
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Old 01-12-2014, 02:31 AM
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I just installed the UMW705, UMW706 rear hangers with adjustable inserts. The rear arms cannot fall under their own weight as soon as I attach the rear motor guard. Before that the arms are loose. No matter if add a pro-squat shim or not.

This doesn't happen with the UMW514/515 rear hangers (RB5). Does anyone else experience this? I use the LAW32 delrin bushings (I don't think this is a factor). Thanks,
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