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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
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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 07-27-2016, 11:23 AM
  #13471  
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Originally Posted by TravisS27
I'm interested in running Kyosho brand diffs in my RB6, do we only need the diff case and rear bulkhead?
Rear Bulkheads:
UMW740 (includes mm3 and laydown)

3 Gear:
trans case - UM734
gear cover - UM75

Laydown: <-- ASSuming needs new chassis or holes drilled
trans case - UM736
40T idler - UM737
motor plate - UM738
gear cover - UM739

Will edit wiki...

EDIT: Wiki updated and formatted..ish
Last edited by fenton06; 07-27-2016 at 11:51 AM.
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Old 07-27-2016, 06:07 PM
  #13472  
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Does anyone know if there is a shim In the kit that allows you to move the rear tower back and run the shocks on the back of the tower when using the laydown transmission? I know Tebo is running his shocks on the rear of the tower with the laydown on clay, but I did not see the option in the manual. I Thought maybe someone in here had some insight.
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Old 07-27-2016, 06:19 PM
  #13473  
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Originally Posted by Roni45
Does anyone know if there is a shim In the kit that allows you to move the rear tower back and run the shocks on the back of the tower when using the laydown transmission? I know Tebo is running his shocks on the rear of the tower with the laydown on clay, but I did not see the option in the manual. I Thought maybe someone in here had some insight.
Looks like you could run the other bulkhead with the laydown to get the shocks to the rear of the arms.
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Old 07-27-2016, 06:24 PM
  #13474  
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Originally Posted by oPAULo
Looks like you could run the other bulkhead with the laydown to get the shocks to the rear of the arms.
Which other bulkhead? Did I miss something in the manual?
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Old 07-27-2016, 06:29 PM
  #13475  
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Originally Posted by Roni45
Which other bulkhead? Did I miss something in the manual?
There's 2 rear bulkheads. New style and old style. Looks like the new laydown transmission will key into the old style bulkhead with shocks out back.
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Old 07-27-2016, 06:32 PM
  #13476  
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Originally Posted by Roni45
Does anyone know if there is a shim In the kit that allows you to move the rear tower back and run the shocks on the back of the tower when using the laydown transmission? I know Tebo is running his shocks on the rear of the tower with the laydown on clay, but I did not see the option in the manual. I Thought maybe someone in here had some insight.
The manual (pg. 33) has the shocks mounted to the rear in the 4 gear mid and RM setups, you will be able to choose front or back. Shim your shocks so they are at a 90' angle to the arms and you should be good, as per Tebo.

I just ordered a couple of the new 3 gear gear box sets and the reverse gear covers, should be lots of fun when they get here. Thanks for the heads up Toby.
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Old 07-27-2016, 07:07 PM
  #13477  
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Originally Posted by Roni45
Which other bulkhead? Did I miss something in the manual?
Yup, UM740...

You will need it to run LD or 3 gear mid.
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Old 07-27-2016, 07:13 PM
  #13478  
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After studying the manual and my spare chassis, this looks to be the only difference in the two chassis'. Just drill out those two holes for the front of the diff case and your ready for a laydown tranny.

Also looks like the laydown uses the same UM740 bulkhead as the 3 gear.

Are these parts available yet? Also, does the laydown use the same ball diff gear, idler and top shaft as the other diffs? Same as the RB6 diff internals?
Attached Thumbnails Kyosho Ultima RB6 &amp; RB6.6 Car Thread-screenshot_20160727-210718.jpg  
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Old 07-27-2016, 07:49 PM
  #13479  
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Originally Posted by TravisS27
After studying the manual and my spare chassis, this looks to be the only difference in the two chassis'. Just drill out those two holes for the front of the diff case and your ready for a laydown tranny.

Also looks like the laydown uses the same UM740 bulkhead as the 3 gear.

Are these parts available yet? Also, does the laydown use the same ball diff gear, idler and top shaft as the other diffs? Same as the RB6 diff internals?
Yup, add 2 holes to the chassis, the LD gear box, 40t idler gear, LD motor plate and LD gear cover. They are available. The internals are the same except for the 40t.
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Old 07-27-2016, 08:07 PM
  #13480  
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Originally Posted by GIHOSU
Yup, add 2 holes to the chassis, the LD gear box, 40t idler gear, LD motor plate and LD gear cover. They are available. The internals are the same except for the 40t.
Actually, you prolly need to enlarge the two holes (for mounting the battery cradle) in the regular rb6 chassis. In the rb6.6, they are used to mount the waterfall in the laydown gearbox position. However, the waterfall holes are just very slightly wider (or narrower... I can't remember) then the battery cradle holes.
Personally, I don't mind drilling new holes, I don't mind enlarging holes, but countersinking an enlarged hole is annoyingly difficult without a mill and a setting plate.

And of Coz, drill the two holes for the laydown gearbox itself.
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Old 07-27-2016, 08:12 PM
  #13481  
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Are folks drilling because the chassis isn't available?

When will the chassis be available?
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Old 07-27-2016, 08:30 PM
  #13482  
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Originally Posted by teeforb
Are folks drilling because the chassis isn't available?

When will the chassis be available?
I'm sure it's available, that's just a significant added cost to upgrading to a laydown with your existing RB6
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Old 07-27-2016, 08:31 PM
  #13483  
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Anyone have experience ordering from Kyosho's website? Do the parts ship from the US or overseas?
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Old 07-27-2016, 08:44 PM
  #13484  
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Originally Posted by TravisS27
Anyone have experience ordering from Kyosho's website? Do the parts ship from the US or overseas?
Ships from California.
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Old 07-27-2016, 08:58 PM
  #13485  
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Originally Posted by Holmberg418
Ships from California.
Thanks!
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