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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 01-13-2013, 09:33 AM   #4201
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Quote:
Originally Posted by umm winning View Post
@teeforb. Kyosho RB6
I pm you last night.

Do you have indent on the bottom of your chassis as well?
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Old 01-13-2013, 09:44 AM   #4202
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Quote:
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you race on carpet correct ? when i used to race on carpet i always ran a ball diff as a matter of fact ball diff is usually the better choice . i will be running my car on a carpet track this coming Saturday . the only thing i will be changing is the shock oil 50 front and 40 rear i have a worn set of mc suburbs i will use .


yes the gear diff will fit if you want to use it .
Thanks. Yes I race on carpet. I am using 500cst front and 425cst rear. I like it.
thanks for your help
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Old 01-13-2013, 11:14 AM   #4203
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When you use the Ghea pistons, which wat do you put the taper?
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Old 01-13-2013, 11:17 AM   #4204
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Quote:
Originally Posted by Dale.0 View Post
When you use the Ghea pistons, which wat do you put the taper?
Taper goes on the bottom.
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Old 01-13-2013, 11:24 AM   #4205
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Quote:
Originally Posted by teeforb View Post
I pm you last night.

Do you have indent on the bottom of your chassis as well?
He's not the seller.. he was just showing you the link. The chassis doesn't appear to be dented. (but don't pay 400 for a used one. My track just sold two NIB ones for $420 each)
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Old 01-13-2013, 01:32 PM   #4206
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What's kyosho contact support email?
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Old 01-13-2013, 02:38 PM   #4207
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Good news fellas, Kraig, the super moderator of the year, figured out a way to give me post #1. The page will be a work in-progress, and I hope to have a pile of nicely organized info up and ready to reference today! Let me get some stuff up before you guys PM me things to add... Once we have a base of information, feel free to PM any and all suggestions for post #1

Thanks Kraig! U the man!

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Originally Posted by teeforb View Post
What's kyosho contact support email?
http://www.kyoshoamerica.com/crm.asp?action=contactus
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Last edited by Cpt.America; 01-13-2013 at 03:07 PM.
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Old 01-13-2013, 03:28 PM   #4208
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Quote:
Originally Posted by Cpt.America View Post
Good news fellas, Kraig, the super moderator of the year, figured out a way to give me post #1. The page will be a work in-progress, and I hope to have a pile of nicely organized info up and ready to reference today! Let me get some stuff up before you guys PM me things to add... Once we have a base of information, feel free to PM any and all suggestions for post #1

Thanks Kraig! U the man!
You got me thinking out of the box and I found a way to make it happen. Now the rest of us are patiently waiting to see what you come up with.
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Old 01-13-2013, 03:42 PM   #4209
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Originally Posted by Cpt.America View Post
If you are going to stick with the stock slipper setup, run Kimbrough B4 spur gears, and run the tan colored AE high torque pads.
Is this a direct fit?

If I use 76T, what pinion for 17.5 blinky class?
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Old 01-13-2013, 03:53 PM   #4210
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Quote:
Originally Posted by Kraig View Post
You got me thinking out of the box and I found a way to make it happen. Now the rest of us are patiently waiting to see what you come up with.
Already up and going...

Quote:
Originally Posted by teeforb View Post
Is this a direct fit? If I use 76T, what pinion for 17.5 blinky class?
Yep. If sticking with the stock slipper, I can't recommend the Kimbrough spur gears enough (made for the B4). All you need is the spur, and the pads. I prefer the high torque pads.

Gearing? Start with the 69 spur, and a 31ish pinion. If you run the Fantom motors I can really get you dialed in. PM or call me.

Kimbrough spur: http://www.amainhobbies.com/product_...ipper-Gear-69T
Slipper pads: http://www.amainhobbies.com/product_...pper-Pad-Set-2
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Old 01-13-2013, 03:58 PM   #4211
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Cool thx

Quote:
Originally Posted by Cpt.America View Post
Already up and going...


Yep. If sticking with the stock slipper, I can't recommend the Kimbrough spur gears enough (made for the B4). All you need is the spur, and the pads. I prefer the high torque pads.

Gearing? Start with the 69 spur, and a 31ish pinion. If you run the Fantom motors I can really get you dialed in. PM or call me.

Kimbrough spur: http://www.amainhobbies.com/product_...ipper-Gear-69T
Slipper pads: http://www.amainhobbies.com/product_...pper-Pad-Set-2
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Old 01-13-2013, 05:14 PM   #4212
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Quote:
Originally Posted by Cpt.America View Post
Good news fellas, Kraig, the super moderator of the year, figured out a way to give me post #1. The page will be a work in-progress, and I hope to have a pile of nicely organized info up and ready to reference today! Let me get some stuff up before you guys PM me things to add... Once we have a base of information, feel free to PM any and all suggestions for post #1

Thanks Kraig! U the man!

http://www.kyoshoamerica.com/crm.asp?action=contactus
Awesome, already looks great Brandon! This is going to make an already great car even better, and potentially could be the best thread on this site. Will be fun to watch it develop.
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Old 01-13-2013, 05:18 PM   #4213
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What's a cheaper substitute for the following springs?

Pink fronts gold rears

Any equivalent losi springs?
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Old 01-13-2013, 05:21 PM   #4214
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Quote:
Originally Posted by teeforb View Post
What's a cheaper substitute for the following springs?

Pink fronts gold rears

Any equivalent losi springs?
Losi springs are more expensive. Because eventually, you will get the x-gear springs anyway . (buying twice always costs more!) There is no comparison, and worth the dent in the wallet. The car comes with pinks/reds... I would run those for now unless you see the need to change. Traction came down this weekend at my track, and I ended up running white front/gold rear and the car was fantastic. YMMV.
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Old 01-13-2013, 05:24 PM   #4215
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There were lots of RB6 running at the CRCRC Midwest Champs this weekend and they looked great. The A main had at least 5 RB6, and Tebo took the TQ and win. Andy Dibrino took third with the RB6. Hopefully we will see a setup from Tebo from this race soon.
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