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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 06-16-2013, 08:32 PM
  #7276  
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I have a tuning question. I am trying to achieve 0 anti squat. If no spacers under the RF hangers means 2 deg how do i get 0 ? Also which rear hubs would work for this set up? want MORE side bite. Thanks RCT
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Old 06-16-2013, 08:40 PM
  #7277  
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I need to replace a diff outdrive cup, it has a pretty good nick in it. Should I rebuild the ball diff with new or jut take it apart and put it back together?

If I replace it is there a kit and what all do you replace.
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Old 06-16-2013, 09:40 PM
  #7278  
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i use the bfast kit. - plates, balls, thrust balls, thrust plates
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Old 06-16-2013, 10:22 PM
  #7279  
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Originally Posted by carver gt
I have a tuning question. I am trying to achieve 0 anti squat. If no spacers under the RF hangers means 2 deg how do i get 0 ? Also which rear hubs would work for this set up? want MORE side bite. Thanks RCT
Shim the RR suspension hanger to reduce anti-squat.. RB6 has a lot of weight transfer to the front reducing anti-squat forces the weight to be transferred more towards the back and it give you more forward bite..
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Old 06-16-2013, 10:28 PM
  #7280  
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Originally Posted by carver gt
I have a tuning question. I am trying to achieve 0 anti squat. If no spacers under the RF hangers means 2 deg how do i get 0 ? Also which rear hubs would work for this set up? want MORE side bite. Thanks RCT
Well do you want more side bite? or do you want more forward traction? Reducing your anti-squat isn't the direction to go, if you are lacking traction in the corners.
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Old 06-16-2013, 10:55 PM
  #7281  
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Originally Posted by umm winning
Currently in the market for a new esc, out of curiosity whats everybody else running in their rb6? - Would be running stock 17.5
I have a Tekin Gen2 in my RB6 and a Speed Passion Reventon Pro in my SC10. While both are very good, the Speed Passion is much smoother and is very affordable at <$120. Many people state they are equivalent to the Orion Pros.
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Old 06-16-2013, 11:45 PM
  #7282  
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What's the difference in the front axles that come in the kit vs all the set up sheets that reference the rb-5 front axle
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Old 06-17-2013, 01:11 AM
  #7283  
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built in hex vs clamp on hex
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Old 06-17-2013, 01:58 AM
  #7284  
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Clamp on hex is taller and would sit more securely in filling a deeper non-Kyosho wheel. The built in hex is one-piece steel. Cheers,
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Old 06-17-2013, 02:01 AM
  #7285  
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Slightly off topic, is it worth the effort to update the box stock Orion r10 ESC's firmware, as I only have iMac and office pc are secured. Cheers,
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Old 06-17-2013, 02:45 AM
  #7286  
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really it is a huge smash really nice.
what is price? at where can people order this online?
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Old 06-17-2013, 05:27 AM
  #7287  
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Originally Posted by gelshocker
Clamp on hex is taller and would sit more securely in filling a deeper non-Kyosho wheel. The built in hex is one-piece steel. Cheers,
Hello,

Where can I find the front clamp on hexes? Do they accommodate the use of AE style wheels (I have a lot, having just moved from B4.2)?

I looked up RB5 front axles on Amain, but couldn't find front clamp ons, so I must be looking for the wrong thing. Any link to what I need?

Thanks!

Mark
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Old 06-17-2013, 06:00 AM
  #7288  
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Originally Posted by mlinder
Hello,

Where can I find the front clamp on hexes? Do they accommodate the use of AE style wheels (I have a lot, having just moved from B4.2)?

I looked up RB5 front axles on Amain, but couldn't find front clamp ons, so I must be looking for the wrong thing. Any link to what I need?

Thanks!

Mark
http://www.amainhobbies.com/product_...Set-Gunmetal-2
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Old 06-17-2013, 07:10 AM
  #7289  
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Originally Posted by Speedychris22
Oh, thanks Chris for that link. So I use these axles with them?

http://www.amainhobbies.com/product_...heel-Shaft-RB5

Mark
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Old 06-17-2013, 08:10 AM
  #7290  
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hi,

if i want to run the rb5 wc rear arm um566 on my rb6 mid mount, do i have to flip the arms? as the two holes to mount the bottom shocks are at the front?

hugo
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