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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 12-03-2012, 09:16 AM
  #3076  
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Originally Posted by Mxer59
well can't wait to get her on the track, was curious as oil weights to run? On my b4.1 big bores I did 30-27.5
With the stock 5 hole pistons I ran
37.5F
30R.

With my losi 55 4 hole pistons, I am running
32.5R, 25R.

Setup is a work in progress.
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Old 12-03-2012, 12:22 PM
  #3077  
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Originally Posted by Mxer59
I got that notchy feeling out of my tranny, thanks for all who replied with help.
Are there any must need upgrades for this car?
What did you find in your trans?
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Old 12-03-2012, 12:43 PM
  #3078  
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Well I'm finally taking the plung. Selling off all the AE rides and have a Rb6 coming Wednesday.
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Old 12-03-2012, 01:00 PM
  #3079  
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Originally Posted by Cpt.America
With the stock 5 hole pistons I ran
37.5F
30R.

With my losi 55 4 hole pistons, I am running
32.5R, 25R.

Setup is a work in progress.
Try same oils with 2 hole 1.6
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Old 12-03-2012, 01:02 PM
  #3080  
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Originally Posted by Gitsum
Well I'm finally taking the plung. Selling off all the AE rides and have a Rb6 coming Wednesday.
You will wonder why you waited so long
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Old 12-03-2012, 02:53 PM
  #3081  
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Originally Posted by CanyonCarverR1
What did you find in your trans?
It ended up being the brass alum top shaft holder it was allowing the top shaft to have a little play, cars smooth now. Just waiting on my ae slipper pads so I can run a lower spur
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Old 12-03-2012, 02:53 PM
  #3082  
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Will rb5 rims work for this car?
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Old 12-03-2012, 03:11 PM
  #3083  
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Originally Posted by Mxer59
Will rb5 rims work for this car?
Wheels
rear hubs
suspension hangers
motor plate

all cross right over to the new car. (and more i'm not thinking of, im sure.)
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Old 12-03-2012, 03:59 PM
  #3084  
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Originally Posted by Mxer59
What are you guys running for gearing in 17.5 in rear motor
I have a Gen2 Tekin motor
I'm currently running my 17.5 Tekin Gen2 at about 38 degrees of timing with a 28 pinion and 72 spur gear.
(I'm running it at WCRC.)


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Old 12-03-2012, 04:16 PM
  #3085  
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70/33 Orion Pro Stock 2010 Grey can. Car is ballistic. WCRC also.
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Old 12-03-2012, 04:18 PM
  #3086  
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Originally Posted by Cpt.America
Wheels
rear hubs
suspension hangers
motor plate

all cross right over to the new car. (and more i'm not thinking of, im sure.)
Can also run RB5 axles with wider hexes.
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Old 12-03-2012, 05:05 PM
  #3087  
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Originally Posted by jpcopeland1
Can also run RB5 axles with wider hexes.
oh of course, yeah.. der ... axles, swing shafts, gearbox internals...
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Old 12-03-2012, 05:40 PM
  #3088  
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Anybody here run Dark purple? i have a new set of kyosho wheels that are very dark purple.. $10 shipped.
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Old 12-03-2012, 05:50 PM
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Anyone got an opinion on tuning for heat using timing adjust vs regearing?

Also, is the finisher the only other body available so far? I'm still hanging for a non-cab forward body...
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Old 12-03-2012, 05:50 PM
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Anyone got an opinion on tuning for heat using timing adjust vs regearing?

Also, is the finisher the only other body available so far? I'm still hanging for a non-cab forward body...
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