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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 12-04-2012, 09:44 PM
  #3106  
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Originally Posted by x7tristan
Hey guys I'm having trouble understanding how all the tuning shims and inserts work. Is there a simple chart like the one for the FS2, that explains how the suspension shims/inserts affect the kick up/anti squat/rear toe?
AFAIK you cant affect the rear toe with shims, only new hubs.

Toe, if you add shims to the rear, you take away Anti Squat. If you add it to the front of the pivot you add. .5mm shim = 1 degree adjustment.

Inserts are just for caster, more caster = less steering. The inside and outside options adjust the track width of the car, which can make it react faster or slower depending on your shock setup.

The other shims on the ballstuds affect roll.
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Old 12-04-2012, 10:25 PM
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Which shorty are you running?
Had my RB6 at WCRC Tuesday and it felt really good except it seemed heavy on the jumps.

Originally Posted by lbckevin
I also have run the short pack in mine. All of the Kyosho drivers at West Coast are all running the shorty.
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Old 12-04-2012, 11:07 PM
  #3108  
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Revtech double deuce is the best is say or the orion. I got the revtech the other day and will not put a full size pack in it ever again.
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Old 12-05-2012, 12:35 AM
  #3109  
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Pro-Line 2012 BullDog for RB6 rocks!



See more details here
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Old 12-05-2012, 03:06 AM
  #3110  
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I'm assuming those are Proline wheels....
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Old 12-05-2012, 05:21 AM
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Originally Posted by x7tristan
Hey guys I'm having trouble understanding how all the tuning shims and inserts work. Is there a simple chart like the one for the FS2, that explains how the suspension shims/inserts affect the kick up/anti squat/rear toe?
it would be easier to tell us whats in the car and what you are trying to achieve. also i always say the bast way to understand what a change does is spend the time making 1 change at a time and feeling it for yourself
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Old 12-05-2012, 06:08 AM
  #3112  
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Originally Posted by eper
it would be easier to tell us whats in the car and what you are trying to achieve. also i always say the bast way to understand what a change does is spend the time making 1 change at a time and feeling it for yourself
I haven't built the car yet. I was going through the manual beforehand and noticed the possible shims/inserts.

For starters lets say I wanted 20deg caster, 1.5 anti-squat, 2.5deg rear toe, what would I do?
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Old 12-05-2012, 07:09 AM
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i finally installed mine and will be testing Saturday. we have no racing but practice . by just somewhat tuning on my carpet it feels way better then the stock one that comes with the car.
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Old 12-05-2012, 09:03 AM
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Hi everyone,

Just to let you know, I broke my steering rack and installed the aluminum exotek and after pretty severe crash I broke the stock steering cranks. Replaced them with the exotek aluminum and steering is much more precise due to no flex.

I highly recommend both exotek steering rack and cranks, best upgrade so far.
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Old 12-05-2012, 09:24 AM
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Originally Posted by Electrolabs
Hi everyone,

Just to let you know, I broke my steering rack and installed the aluminum exotek and after pretty severe crash I broke the stock steering cranks. Replaced them with the exotek aluminum and steering is much more precise due to no flex.

I highly recommend both exotek steering rack and cranks, best upgrade so far.
the next part to break would be the steering knuckles or the servo it's self .
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Old 12-05-2012, 09:29 AM
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Has anyone switched from a tlr22 to the rb6? I'm wondering if its worth the switch, I also have a 22sct.
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Old 12-05-2012, 09:56 AM
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Favor to ask!

Anybody with a grams scale that is running exotec products on their 6. Possible to weigh them against the stock pieces?

Aluminum steering rack pieces and plastic steering rack pieces?
Carbon Fiber the front shock tower and plastic front shock tower?
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Old 12-05-2012, 10:00 AM
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Originally Posted by fastestwon
the next part to break would be the steering knuckles or the servo it's self .
Nah.. next thing would probably be the servo horn stripping around the servo.
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Old 12-05-2012, 10:09 AM
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Originally Posted by nitroargi
Pro-Line 2012 BullDog for RB6 rocks!



See more details here
I just threw up a little. Its like carrying a backpack on itself behind the cab.
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Old 12-05-2012, 10:10 AM
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Originally Posted by fastestwon
the next part to break would be the steering knuckles or the servo it's self .
If you have a decent servo that shouldn't happen.
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