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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 08-21-2016, 01:54 PM   #13606
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Ok, so I ordered the new 6.6 . Does the kit come with the aluminum rf hanger for the lay down tranny?
Also, is there anything else the kit needs to complete? I already have the aluminum steering rack and aluminum rear hubs. Is there anything else that people are getting?
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Old 08-21-2016, 06:48 PM   #13607
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Originally Posted by chriso138 View Post
Ok, so I ordered the new 6.6 . Does the kit come with the aluminum rf hanger for the lay down tranny?
Also, is there anything else the kit needs to complete? I already have the aluminum steering rack and aluminum rear hubs. Is there anything else that people are getting?
No it doesn't.

Also get the Alum RR hanger.

UMW705B Aluminum Rear Sus. Holder (RF/RB6.6)
UMW707 Aluminum Rear Sus. Holder (RR-Mid)

Last edited by tobamiester; 08-22-2016 at 08:00 AM.
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Old 08-21-2016, 09:53 PM   #13608
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Default Kyosho Rb6 metal idler

Looking for a hardened metal idler for my RB6 or SC6 I've got a aluminum one but looking for steel if anyone has any insight on one please help.

Thanks Travis Hammond
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Old 08-22-2016, 07:45 AM   #13609
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Hey all, I don't post too much here but if you ran the 3 gear RB6, I would seriously look at going to the laydown 4 gear setup. I had a similar shock package to my 3 gear execpt the alum front arm mount instead of brass. Car felt very balanced and I had better laptimes, and more comfortable to hit brakes.
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Old 08-22-2016, 10:51 AM   #13610
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Quote:
Originally Posted by toepush View Post
Kraig what are you running at trackside. 6-6.6? And what trans?
Lately I have been using another manufacturer's car. I just broke out the 6.6 last Saturday for a few trial runs and decided to bolt a 7.5 in it. It has the laydown 4 gear transmission in it. Imo, the rear rolls to much in the corner so I need to work on that. Otherwise, it is very smooth and easy to drive.

My kids car is a regular 6 with a converted 3 gear transmission and sideways battery. He will get a 6.6 eventually.
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Old 08-22-2016, 01:32 PM   #13611
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Does anyone know if the Schelle / Avid slipper will fit under the laydown gear cover? Thanks.
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Old 08-22-2016, 01:42 PM   #13612
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Does anyone know if the Schelle / Avid slipper will fit under the laydown gear cover? Thanks.
Well laydown uses same diff/topshaft as standup so I wouldn't see any reason why they wouldn't work.
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Old 08-22-2016, 03:06 PM   #13613
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YES IT DOES! I've installed my avid setup and it fits great as long as you don't use the spacer on the top shaft between the slipper plates and top bearing. otherwise the slipper assembly is pushed out too far.
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Old 08-22-2016, 04:10 PM   #13614
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Anyone have a 6 lightweight chassis they'd like to part with? Scratched up is fine as long as it's not bent.
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Old 08-22-2016, 04:31 PM   #13615
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Anyone have a 6 lightweight chassis they'd like to part with? Scratched up is fine as long as it's not bent.
I do. its pretty fugly and 'dremeled' for transverse (not by me).
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Old 08-22-2016, 04:39 PM   #13616
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I do. its pretty fugly and 'dremeled' for transverse (not by me).
I should add, not milled flat. That might be waaay too much flex. Thanks though Tobe! Appreciate the offer.
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Old 08-22-2016, 07:28 PM   #13617
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Anyone have a 6 lightweight chassis they'd like to part with? Scratched up is fine as long as it's not bent.
I do, and it has zero use on it. I just took out of the package, installed it, then a few days later they released the 6.6 chassis. Didnt even stick the electronics to it.
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Old 08-22-2016, 07:48 PM   #13618
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Originally Posted by tobamiester View Post
Well laydown uses same diff/topshaft as standup so I wouldn't see any reason why they wouldn't work.
I knew the topshaft wuld work, I wasn't worried about that part

Quote:
Originally Posted by 13Maschine View Post
YES IT DOES! I've installed my avid setup and it fits great as long as you don't use the spacer on the top shaft between the slipper plates and top bearing. otherwise the slipper assembly is pushed out too far.
Thanks! Just what I needed to know. Would you mind snapping a pic?
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Old 08-23-2016, 08:00 AM   #13619
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Quote:
Originally Posted by Kraig View Post
Lately I have been using another manufacturer's car. I just broke out the 6.6 last Saturday for a few trial runs and decided to bolt a 7.5 in it. It has the laydown 4 gear transmission in it. Imo, the rear rolls to much in the corner so I need to work on that. Otherwise, it is very smooth and easy to drive.

My kids car is a regular 6 with a converted 3 gear transmission and sideways battery. He will get a 6.6 eventually.
I went from my Xray XB2CE to the RB6.6 laydown (3gear) and I'm now selling my Xray.

The RB6 was awesome. This is another world.
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Old 08-23-2016, 11:27 PM   #13620
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Hey guys....has anyone tried to fit the side guards from the RB6.6 to the original RB6 chassis?
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