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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech Forums Thread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
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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 11-07-2012, 11:43 PM   #2446
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Quote:
Originally Posted by Energyzer View Post
Hello guys.

Anyone tried the gunmetal rear hubs? There are 3 types:

-0
-0.5
-1

What does this angle number mean?! Under what conditions does the part work best?

Cheers, Tiago
Stock rear Toe in is 3 deg. .5=3.5 toe and 1.=4 deg toe. You can reverse them for less toe in. I recently put the l and R .5 hubs on the opposite sides for 2.5 toe. The track was super high bite. Prob could have run reversed 1deg hubs.
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Old 11-08-2012, 05:42 AM   #2447
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Originally Posted by DR.Vanostrum View Post
koyosho usually makes very good stuff but anyone who has really built one of these and ran one for any length of time will know what i am talking about......
The Stock diff from the readyset is real strong to me! if you want to improve then use the option bevel gears from the R4. Machined metal. Make diff bullitt proof.
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Old 11-08-2012, 06:30 AM   #2448
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Hi Guys

I started building mine. There's sthing funny with the steering rack, the lower "ears" won't clean the chassis... What did I do wrong?

Thank you (I feel like a doofus)

Paul
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Old 11-08-2012, 06:45 AM   #2449
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.
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Old 11-08-2012, 06:45 AM   #2450
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theres a leaflet in the box that shows 2 small spots that need to be filed down for the rack to clear..
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Old 11-08-2012, 07:44 AM   #2451
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Originally Posted by Lonestar View Post
Hi Guys

I started building mine. There's sthing funny with the steering rack, the lower "ears" won't clear the chassis... What did I do wrong?

Thank you (I feel like a doofus)

Paul
Quote:
Originally Posted by eper View Post
theres a leaflet in the box that shows 2 small spots that need to be filed down for the rack to clear..
Yeah, but its NOT the chassis.
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Old 11-08-2012, 07:52 AM   #2452
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Originally Posted by Lonestar View Post
Hi Guys

I started building mine. There's sthing funny with the steering rack, the lower "ears" won't clean the chassis... What did I do wrong?

Thank you (I feel like a doofus)

Paul
Compare your build to these photos.



and



and



and

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Old 11-08-2012, 08:02 AM   #2453
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Yeah, but its NOT the chassis.
indeed
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Old 11-08-2012, 08:04 AM   #2454
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Thanks for the pics Kraig - will be useful once I compare to my car to find out what the heck I have done wrong...

Thanks

Paul

Edit: I don't have the car in front of me but I think I guessed it... I must have mounted the bellcranks upside down on my car. duh!!!

thank you guys
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Old 11-08-2012, 08:21 AM   #2455
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Originally Posted by Lonestar View Post
Thanks for the pics Kraig - will be useful once I compare to my car to find out what the heck I have done wrong...

Thanks

Paul
You can find the full build pictures from multiple people on this page.
http://www.petitrc.com/setup/kyosho/...UltimaRB6.html
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Old 11-08-2012, 08:24 AM   #2456
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Definitely thanks for the in-build pics everyone and the links to the petitrc.com site for the build of the RB6. It'll be great to have these when I finally get the RB6 and start the build.

Thanks again everyone.


Allen
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Old 11-08-2012, 08:25 AM   #2457
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Guys will the JC B4.1 front and rear hex rims work on the RB6?
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Old 11-08-2012, 08:27 AM   #2458
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plz read the thread, even just the last 2pages we've gone over this 5x's this month alone..
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Old 11-08-2012, 08:32 AM   #2459
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Thanks Kraig.

I think the fairer way would be to link to David Ronnefalk's site directly, where petitrc actually got their pics from. Don't even get me started on that website policy (or absence thereof) about "hosting" pics, there was a massive discussion about this lately that imho sealed the fate of the orange site...

http://www.davidronnefalk.com/index....ma-rb6-gallery

cheers guys!

Paul
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Old 11-08-2012, 09:05 AM   #2460
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Originally Posted by t8rtot View Post
plz read the thread, even just the last 2pages we've gone over this 5x's this month alone..
Or you could just tell him if your going to post, the b4.1 jc wheels wont fit well, i honestly would stick to the kyosho wheels, or any specific rb5/6 wheels.
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