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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 10-25-2015, 04:27 PM
  #12586  
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Whats new in RB6 land that wasn't available 2 years ago?
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Old 10-25-2015, 04:56 PM
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Originally Posted by whitrzac
Whats new in RB6 land that wasn't available 2 years ago?
Well the 2015 came out not long ago....
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Old 10-25-2015, 05:16 PM
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I didnt have the original; what were the differences? The 2015 came with machined pistons and based on some stuff I had read earlier in the thread, it seemed like that may not have been the case with the original.
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Old 10-25-2015, 05:28 PM
  #12589  
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Originally Posted by RobsRacin
Well the 2015 came out not long ago....
The only listed 'differences' I could find with the 2015 is: a new rear wing, different rate rear springs, and more mounting holes in the rear arms.

Are there any other updates that it has?
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Old 10-25-2015, 06:10 PM
  #12590  
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New car has a different chassis, as well as some more lightweight stuff I believe. Not much.
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Old 10-25-2015, 07:21 PM
  #12591  
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Originally Posted by whitrzac
Whats new in RB6 land that wasn't available 2 years ago?
The current trends are the 3 gear tranny mod and chassis mods for different battery positions.
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Old 10-26-2015, 03:14 PM
  #12592  
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Originally Posted by whitrzac
The only listed 'differences' I could find with the 2015 is: a new rear wing, different rate rear springs, and more mounting holes in the rear arms.

Are there any other updates that it has?
Description I read stated gold springs as I recall but mine came with red and pink.
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Old 10-26-2015, 04:21 PM
  #12593  
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Mine came with gold rear and pink fronts but I ordered white fronts..
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Old 10-26-2015, 05:48 PM
  #12594  
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When switching to aluminum rear hubs will the kit bearings work?
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Old 10-26-2015, 06:17 PM
  #12595  
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Originally Posted by BiLL77
When switching to aluminum rear hubs will the kit bearings work?
Yes, the Version 2 aluminum rear hubs come with inserts that allow you to use the kit 5x10mm bearings.
The Version 1 rear hubs come with the 5x13mm outer bearings and you can use the kit 5x10 for the inner.
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Old 10-26-2015, 06:51 PM
  #12596  
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So, I tried the 3 gear tranny and a gear diff on high bite.... $$$$$
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Old 10-26-2015, 06:57 PM
  #12597  
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Originally Posted by symmetricon
So, I tried the 3 gear tranny and a gear diff on high bite.... $$$$$
What weight diff lube?
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Old 10-27-2015, 03:45 AM
  #12598  
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Thanks
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Old 10-27-2015, 06:44 AM
  #12599  
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Originally Posted by oPAULo
What weight diff lube?
4k... I might try out 3k though, I would like a tad more off power rotation, but it was super stable though the sweeper, much more so than a ball diff which would diff out and cause inconsistencies.
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Old 10-27-2015, 12:37 PM
  #12600  
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so can I get a little help on who makes the 3 gear tranny???PLEASE!!!

thank you very much!!!

Richard


THANX VERY MUCH oPAULo
Last edited by Barney; 10-30-2015 at 01:34 PM.
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