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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 02-04-2013, 04:19 PM   #4936
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I've notice a lot of the current setups are using 4 hole 55 pistons. Can you just glue 1 hole shut on the 5 hole stock pistons and drill the other 4 to 55 and get the same results?
allot of them are using losi 4 hole pistons or taking blank kyosho pistons and drilling them out
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Old 02-04-2013, 04:35 PM   #4937
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Originally Posted by shark2288 View Post
I've notice a lot of the current setups are using 4 hole 55 pistons. Can you just glue 1 hole shut on the 5 hole stock pistons and drill the other 4 to 55 and get the same results?
pick up a set of the avid 4x1.3mm ones they are excellent and super smooth in the shocks
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Old 02-04-2013, 04:44 PM   #4938
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I was thinkign of trying those.
Has anyone tried the other ones - 1.6/1.1 (or whatever it was)?
Or those MIP valve shocks?
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Old 02-04-2013, 04:57 PM   #4939
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Originally Posted by joeymdz View Post
allot of them are using losi 4 hole pistons or taking blank kyosho pistons and drilling them out
Does anyone have the part # for the blanks?
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Old 02-04-2013, 04:59 PM   #4940
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Does anyone have the part # for the blanks?
w5303-8
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Old 02-04-2013, 05:03 PM   #4941
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Originally Posted by joeymdz View Post
allot of them are using losi 4 hole pistons or taking blank kyosho pistons and drilling them out
I used to do that with durango shocks. Don't feel like doing the same to my kyoshos . I also don't trust my otherwise trusty makita to drill perfect straight holes so I outsource it and buy gheas. If avid was available at the time I would support them since they are local and my LHS also started carrying stuff from them!

BTW a great job by Brandon and the other contributors in making the first post!
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Old 02-04-2013, 06:16 PM   #4942
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I copied brandons set up with the ghea pistons and that's a great upgrade.. But pretty spendy for 4 pistons.. Oh well we love our habbit!
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Old 02-04-2013, 10:19 PM   #4943
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I decided to purchase the kit as soon as it becomes available again along with the aluminum rear hangers. I was looking at some of the parts from exotek. Are they worth the cost or just bling?
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Old 02-04-2013, 10:35 PM   #4944
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I bought a RB6 today and I am so stoked! Just started building it and it sure is nice! My first kyosho car. Going to run stock with it
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Old 02-04-2013, 10:40 PM   #4945
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Worth it. Front carbon tower is bling depending on who you ask. I have almost all the exotek parts on my 6 and wouldn't go back to stock, no reason to.
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Old 02-04-2013, 11:37 PM   #4946
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Worth it. Front carbon tower is bling depending on who you ask. I have almost all the exotek parts on my 6 and wouldn't go back to stock, no reason to.
Hi, any reason to upgrade to alum diff nut? Does it prevent the diff loosening? Thx
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Old 02-04-2013, 11:44 PM   #4947
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Probably lighter which is less rotating mass.. I'd use the stock nut and run an aluminum pinion gear for a bigger difference, but still probably not noticeable
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Old 02-05-2013, 03:04 AM   #4948
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Hi, any reason to upgrade to alum diff nut? Does it prevent the diff loosening? Thx
The stock plastic diff nut holder is difficult to remove without destroying it (the little wings on it break off), upgrading to the alum diff nut will prevent that.
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Old 02-05-2013, 05:58 AM   #4949
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IS the Exotek Front Bulk Head more prone to break other parts? Also the same question regarding the rear camber plate?
Thanks
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Old 02-05-2013, 06:37 AM   #4950
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i'm worried about shearing off a stud and having to drill it out, that's why mine wasn't installed. that and the stock one isn't an issue when it comes to durability. its just bling.

i really wish Exotek would roll out the hangers and hubs. that will be a big seller since the Factory parts aren't cheap.
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