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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 10-01-2012, 09:30 AM
  #856  
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Originally Posted by jkirkwood
Was this at CDs Hobbies?
Yes it was . Track was very tight and really loose by timing booth
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Old 10-01-2012, 09:35 AM
  #857  
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Originally Posted by Cpt.America
RB6 purchased
Iv'e been waiting for this post for days............
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Old 10-01-2012, 09:44 AM
  #858  
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Well, buggy was good with tebo setup and filtering arms. Things to try next...Losi 55 pistons all around, 2 hole rears, and 1 hole rear arms. A real good driver, who runs a WC, took it for a spin and it had a ton of steering ( I like it, he doesnt like a lot) and he turned into a tube and broke the center link for the steering before the main..doh! It may be a weak spot, so I'm making an alum one this week. I took the rb5 +10 to 2nd in the A main. Fast lap was .3 better without setup changes. I didnt have my smoothest run till the main, but it was good to run the 5 to compare.
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Old 10-01-2012, 09:46 AM
  #859  
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Originally Posted by Yeti AS3
Well, buggy was good with tebo setup and filtering arms. Things to try next...Losi 55 pistons all around, 2 hole rears, and 1 hole rear arms. A real good driver, who runs a WC, took it for a spin and it had a ton of steering ( I like it, he doesnt like a lot) and he turned into a tube and broke the center link for the steering before the main..doh! It may be a weak spot, so I'm making an alum one this week. I took the rb5 +10 to 2nd in the A main. Fast lap was .3 better without setup changes. I didnt have my smoothest run till the main, but it was good to run the 5 to compare.
You ran the Tebo setup with the stock RB6 arms?

Also, are you saying your RB6 hero lap was 0.3 faster than your RB5+10 hero lap?
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Old 10-01-2012, 10:01 AM
  #860  
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What is the benefit of running the .5* rear hubs? Is there a specific purpose for this?
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Old 10-01-2012, 10:05 AM
  #861  
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^^^^More rear grip?
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Old 10-01-2012, 10:06 AM
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Originally Posted by Bluehills315
What is the benefit of running the .5* rear hubs? Is there a specific purpose for this?
Originally Posted by Posvar
^^^^More rear grip?
More side bite with a minimal loss in forward bite.
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Old 10-01-2012, 10:18 AM
  #863  
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Originally Posted by Cpt.America
RB6 purchased
Cool looking fwd to your reviews
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Old 10-01-2012, 10:22 AM
  #864  
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Originally Posted by aloksatoor
Cool looking fwd to your reviews
X100!

Brandon is very comprehensive.
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Old 10-01-2012, 10:33 AM
  #865  
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Originally Posted by Cpt.America
RB6 purchased
Ryan says it's life changing.

Building mine when I get home from work today. Longest day of work EVER!!!
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Old 10-01-2012, 10:44 AM
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Originally Posted by Rfury
More side bite with a minimal loss in forward bite.
So it helps from keeping the back end from stepping out? Is anyone running the 0*?

Are people doing this because of tebo's WCRC setup?
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Old 10-01-2012, 10:46 AM
  #867  
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Originally Posted by Bluehills315
So it helps from keeping the back end from stepping out? Is anyone running the 0*?

Are people doing this because of tebo's WCRC setup?
Right. I don't know if anyone is running 0* or not.

I would assume that is the reason (Tebo's Nat's setup).
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Old 10-01-2012, 10:46 AM
  #868  
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I ran .5 on my rb5 and it was money for my track....I like the overall feel and will try that with the 6 as well.
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Old 10-01-2012, 10:50 AM
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I have always ran 0* on my RB5 and the car is amazing.

MY primary concern is rear side bite and transitioning of the car through tight sections. I hope it is nothing like the 22 and has rear side bite and isn't lazy on its transitions.
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Old 10-01-2012, 10:54 AM
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I have never tried zero...hmmm. It is an easy change out. The kit plastic hubs are zero?
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