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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 10-24-2012, 10:05 PM
  #2086  
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The six kit comes with the old rb5 t-plate too.

All K need to do is update the manual!

Good stuff
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Old 10-24-2012, 11:30 PM
  #2087  
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Originally Posted by fastestwon
i have the perfect fix for the chassis . take a T plate from the RB5 or scr or the RT5 and cut to fit and it fills the void area perfectly see the pictures. only took me about 5 minuets to do
I like it.
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Old 10-25-2012, 01:43 AM
  #2088  
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Im glad I rad all that...lol

Im building mine today and will be cutting a t-plate
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Old 10-25-2012, 06:27 AM
  #2089  
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seems like thats the best fix yet, could you tell us how everything went back together. ie: did the tranny sit nice and flush and did you need to make that rb5 piece thinner?
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Old 10-25-2012, 06:41 AM
  #2090  
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Great t plate it is. Can we move on now.

Have anyone compared the rb5 front hex with the 6 hexes to see the difference in performance?
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Old 10-25-2012, 06:54 AM
  #2091  
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Good job on the fix. Any first impression reports or continuing reports?
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Old 10-25-2012, 07:05 AM
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Originally Posted by eper
seems like thats the best fix yet, could you tell us how everything went back together. ie: did the tranny sit nice and flush and did you need to make that rb5 piece thinner?
Very nice fit and flush it fills the void area perfect . Also weighs next to nothing . You don't need to trim the bottom just the sides and front and back .
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Old 10-25-2012, 07:12 AM
  #2093  
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Anyone used the stubby in mid config yet?
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Old 10-25-2012, 07:16 AM
  #2094  
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Originally Posted by mikeyscott
Anyone used the stubby in mid config yet?
i'm thinking of converting my 6 to mid, and have shorties so i'm curious as well.
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Old 10-25-2012, 08:59 AM
  #2095  
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Originally Posted by fastestwon
Very nice fit and flush it fills the void area perfect . Also weighs next to nothing . You don't need to trim the bottom just the sides and front and back .
It didn't raise the transmission at all and it still sits flush to the chassis? That means the gap there is far larger than I thought.
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Old 10-25-2012, 09:14 AM
  #2096  
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Originally Posted by Rfury
It didn't raise the transmission at all and it still sits flush to the chassis? That means the gap there is far larger than I thought.
Yeah perfect fit . The bottom of the trans wasn't even touching the bottom of the chassis . That would explain all the caving in of the chassis . I have a race Sunday see how well it performs . Should be just fine thou .
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Old 10-25-2012, 09:21 AM
  #2097  
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Awsome.
this is great news
so it was written it shall be done.
ems
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Old 10-25-2012, 01:05 PM
  #2098  
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Originally Posted by frito
Fixn start my build anything I need to know or do?!
For those ball studs that have the short thread length go get some that are longer. Guys on here were saying the short threaded ones were pulling out where they are used. The only exception is the steering rack as those seem to be fine.
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Old 10-25-2012, 03:26 PM
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Originally Posted by Kraig
For those ball studs that have the short thread length go get some that are longer. Guys on here were saying the short threaded ones were pulling out where they are used. The only exception is the steering rack as those seem to be fine.
Yup, use longer ones in the c-hubs. Order an alum steering link too... http://www.exotekracing.com/rb6-alloy-steering-rack/
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Old 10-25-2012, 03:39 PM
  #2100  
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Which is the correct turnbuckle kit for RB6 or do I need both?

LNS2685
LNS2686
Last edited by toast.; 10-25-2012 at 03:50 PM.
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