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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
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 03-22-2014, 08:15 PM   #10186
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Originally Posted by Jspires688 View Post
Anyone try using associated big bore springs or losi? My Lhs doesn't stock any kyosho stuff
the avids fit good
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Old 03-22-2014, 09:27 PM   #10187
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Originally Posted by VenturaDC View Post
What turn motor?
That would probably help, its a 7.5 Reedy.
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Old 03-23-2014, 12:15 AM   #10188
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dont really want to go through 680 pages, so quick question.

what is 'really' required for this buggy?

I heard early on it was to put the rb5 steering rack. Whats wrong with the rb6 rack?

Will the exotek setup be just as good?
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Old 03-23-2014, 07:40 AM   #10189
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Quote:
Originally Posted by hacker View Post
dont really want to go through 680 pages, so quick question.

what is 'really' required for this buggy?

I heard early on it was to put the rb5 steering rack. Whats wrong with the rb6 rack?

Will the exotek setup be just as good?
I think the idea was an aluminum steering rack. I have the Kyosho steering rack which I recommend as it's has been perfect since day one with almost no slop. The stock plastic rack works just fine but if you hit pipes often, the rack will break.
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Old 03-23-2014, 08:56 AM   #10190
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Originally Posted by Jspires688 View Post
Good deal trident my car has 4 hole pistons but I'm not sure what they are as I bought it used but I looked and have those losi springs in my box already so I will try them what's your ride height set at?
Our local track here is very loose and not much traction.. I am running 21 ride height.
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Old 03-23-2014, 11:43 AM   #10191
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Ok thanks trident
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Old 03-23-2014, 01:09 PM   #10192
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Quote:
Originally Posted by hacker View Post
dont really want to go through 680 pages, so quick question.

what is 'really' required for this buggy?

I heard early on it was to put the rb5 steering rack. Whats wrong with the rb6 rack?

Will the exotek setup be just as good?
Quote:
Originally Posted by cnelson3 View Post
I think the idea was an aluminum steering rack. I have the Kyosho steering rack which I recommend as it's has been perfect since day one with almost no slop. The stock plastic rack works just fine but if you hit pipes often, the rack will break.
As Nelson has stated, the Kyosho part number that he is talking about is KYOUMW701.
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Old 03-23-2014, 02:12 PM   #10193
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Plus the kyosho rack matches all the other gunmetal washers, hubs, blocks, etc that you will probably end up putting on the car (for bling, if that's your thing) anyways!
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Old 03-23-2014, 08:33 PM   #10194
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Originally Posted by CaseyD View Post
That would probably help, its a 7.5 Reedy.
20/78 is probably a safe starting point and should give you that snap your looking for.
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Old 03-24-2014, 06:09 PM   #10195
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A couple quick questions:

- In Cody King's Reed Race setups sheet he states he uses 5x13 outer bearings in the rear hub. What is the part # for that? Is it 5x13x4?

- In Cody King's Reedy Race setup sheet for the Sus Holder Spacer F and R it says none and none and a 2 degrees anti-squat. In position 130 on page 23 of the manual does that mean I should put 1.5mm shim and nothing in A?

I really appreciate the 411. Thanks.
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Old 03-24-2014, 06:54 PM   #10196
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As for the rear suspension hangers he's using the new umw705 and umw707 hangers. That info is just to the right of the other rear hanger info on the setup sheet. The new hangers use inserts rather than buying a bunch of different hangers. According to the sheet he's running D in on both.
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Old 03-24-2014, 06:59 PM   #10197
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Quote:
Originally Posted by Kopanas View Post
A couple quick questions:

- In Cody King's Reed Race setups sheet he states he uses 5x13 outer bearings in the rear hub. What is the part # for that? Is it 5x13x4?

- In Cody King's Reedy Race setup sheet for the Sus Holder Spacer F and R it says none and none and a 2 degrees anti-squat. In position 130 on page 23 of the manual does that mean I should put 1.5mm shim and nothing in A?

I really appreciate the 411. Thanks.
For 2 degrees anti squat u have to put the 1mm shim between the rear holder and the bulkhead.
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Old 03-24-2014, 10:10 PM   #10198
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Originally Posted by Speedychris22 View Post
For 2 degrees anti squat u have to put the 1mm shim between the rear holder and the bulkhead.
Is there a chart with this info somewhere?
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Old 03-25-2014, 06:24 AM   #10199
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With Tebo's set-up sheets. Anyone know if shock oil weights that are noted, correlate to Losi, or to AE?
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Old 03-25-2014, 07:52 AM   #10200
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Originally Posted by 1 View Post
With Tebo's set-up sheets. Anyone know if shock oil weights that are noted, correlate to Losi, or to AE?
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