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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 01-05-2017, 04:25 AM
  #14056  
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Good morning,

I am looking to build my RB6 and RB6.6 for a carpet track. I went on Petite RC to look at some setups and noticed that on one particular build, the person was using Associated shock springs. Do these work interchangeably w/ Kyosho shocks or do some mods need to be made?

Thanks in advance for any advice/guidance.
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Old 01-05-2017, 05:08 AM
  #14057  
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Originally Posted by Drift_Buggy
Sorry, bit of a rookie question here. Recently purchased a 2nd hand one and it is mid motor. The rear suspension hangers are RF in the front and MM2 on the rear. Is this correct? Flicking through the manual It says to run RF2 when running mid motor.
RF2 is required to go with the plastic MM2 rear mount. The "2" signifies that they are the wider (standard on MM setup) width, RF is the narrower hanger often used with the rear motor setup.
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Old 01-05-2017, 05:24 AM
  #14058  
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Originally Posted by BigInJapan
i run high grip carpet, gear diff way to go imo
What gear diff oil are you guys running? Weight?

Looking at getting Kyosho Silicone Differential Oil (40cc) (4,000cst) for KYOUMW604 w/ KYOUMW726. Thoughts?

Thanks
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Old 01-05-2017, 07:04 AM
  #14059  
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Originally Posted by LoudOne
Good morning,

I am looking to build my RB6 and RB6.6 for a carpet track. I went on Petite RC to look at some setups and noticed that on one particular build, the person was using Associated shock springs. Do these work interchangeably w/ Kyosho shocks or do some mods need to be made?

Thanks in advance for any advice/guidance.
Springs, if you have the right size, are interchangeable between brands.
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Old 01-05-2017, 08:39 AM
  #14060  
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Originally Posted by Kraig
Springs, if you have the right size, are interchangeable between brands.
Good to know.

Been looking at various pics of the RB6.6 builds - have a question; which side of the car did you put the spur gear on?

I carefully copied the setup in the manual, have my spur on the right side (looking forward, from rear to front). If you went the other way, why? What advantage, if any, does it offer?
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Old 01-05-2017, 09:25 AM
  #14061  
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the side its of depends on how many gears you have in it. 3 gear it will be on the passenger side (right), 4 gear it will be on the drivers side (left). you cant to four gear and right side spur for it will spin in reverse, same applies to 3 gear.
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Old 01-05-2017, 09:31 AM
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Originally Posted by rider313
the side its of depends on how many gears you have in it. 3 gear it will be on the passenger side (right), 4 gear it will be on the drivers side (left). you cant to four gear and right side spur for it will spin in reverse, same applies to 3 gear.
I built mine 3-gear - thanks for the info

/note: I have an older Trackstar 17.5t motor/80a ESC combo in the car and I could not properly pair the ESC until the radio (Futaba 3PLS) was set to REV TH & ST
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Old 01-05-2017, 11:55 AM
  #14063  
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Default RB6.6 waterfall nub removal
Building my 6.6 right now and a fellow Kyosho driver gave me his setup for our local track. His comment area states that the nubs are removed from the waterfall. Question is where are these "nubs" thanks
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Old 01-05-2017, 12:10 PM
  #14064  
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Originally Posted by Kylevergata
Building my 6.6 right now and a fellow Kyosho driver gave me his setup for our local track. His comment area states that the nubs are removed from the waterfall. Question is where are these "nubs" thanks
First - I'm setup for 3-gear mid-ship; if that's what you're doing, then we might be on the same page.

Looking at my "waterfall", I see 3 connection points. There are the posts that mount to the chassis; there's the connection to the tranny; finally, the two points for the battery strap's rear catch plate.

I don't see anything on the part that I would describe as a nub or nubs. I guess he could be referring to flashing?
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Old 01-05-2017, 12:12 PM
  #14065  
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I'm doing the laydown transmission. I could shoot him a text but I don't want to bother him at work.
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Old 01-05-2017, 12:15 PM
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Originally Posted by Kylevergata
I'm doing the laydown transmission.
Laydown arraignment uses the same waterfall part. Maybe somebody else knows what the nubs are.
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Old 01-05-2017, 12:53 PM
  #14067  
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Originally Posted by RogerM
RF2 is required to go with the plastic MM2 rear mount. The "2" signifies that they are the wider (standard on MM setup) width, RF is the narrower hanger often used with the rear motor setup.
Thanks for reply. This has the standard RF plastic mount and then some aluminum mount on rear with MM/RR2 on. Unsure of brand, pic of logo below.
So, pretty much I should switch the RF to RF2?

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Old 01-05-2017, 03:20 PM
  #14068  
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That is made by Revolution Design. I've only seen them sold as a kit. Part # RDRP0212.

Originally Posted by Drift_Buggy
Unsure of brand, pic of logo below.
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Old 01-05-2017, 08:45 PM
  #14069  
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Default Sway bar
Anyone else running a sway bar?
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Old 01-05-2017, 11:26 PM
  #14070  
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Originally Posted by YMMV
That is made by Revolution Design. I've only seen them sold as a kit. Part # RDRP0212.
Thanks, wasn't sure who made them.
The RF2 aluminum one is in with spare parts but the standard RF plastic one is on the kit.
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