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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 04-26-2016, 08:37 AM   #13216
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Quote:
Originally Posted by gokarter64 View Post
i found this spy shot from neobuggy of the new laydown trans case. it looks like you can change from 3 to 4 gear within the same case.

it also looks like the rear tower mounts up to the gearcase just like the yz2
I found these pictures of Naoto's car, on Red R/C, from the World's race.













I am going to guess that the chassis used in Japan has been used by Jared on the dirt based on the pictures below.









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Old 04-27-2016, 07:05 PM   #13217
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Default Laydown trans

Here is another
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Kyosho Ultima RB6 & RB6.6 Car Thread-image.jpg  
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Last edited by joecool; 04-27-2016 at 07:22 PM.
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Old 04-27-2016, 10:58 PM   #13218
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Old 05-02-2016, 01:10 PM   #13219
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Quote:
Originally Posted by scoobyrs25 View Post
My RZ6 showed up today
How are you liking the rz6 so far? I've been thinking about getting the conversion to try on turf or high bite clay.
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Old 05-02-2016, 01:19 PM   #13220
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Quote:
Originally Posted by joecool View Post
Here is another
Who's making this new lay down tranny? Where can i get one?
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Old 05-02-2016, 02:33 PM   #13221
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Originally Posted by chriso138 View Post
Who's making this new lay down tranny? Where can i get one?
As far as we know its a kyosho prototype.
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Old 05-02-2016, 02:44 PM   #13222
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Originally Posted by chriso138 View Post
How are you liking the rz6 so far? I've been thinking about getting the conversion to try on turf or high bite clay.
Actually this weekend was a huge improvement. I lightened up the rear shock oil and moved the esc to behind the motor (super clean). It was very smooth and easy to drive. I would like to try the ball diff and some pink or white rear springs. They are currently gold.
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Old 05-02-2016, 03:00 PM   #13223
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Love that capacitor mounting location. Setup looks clean.
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Old 05-02-2016, 04:11 PM   #13224
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Originally Posted by scoobyrs25 View Post
Actually this weekend was a huge improvement. I lightened up the rear shock oil and moved the esc to behind the motor (super clean). It was very smooth and easy to drive. I would like to try the ball diff and some pink or white rear springs. They are currently gold.
are the hubs all the way forward in the arms? I'm about to pull the trigger on the RZ6 and your layout was the same layout I started with on my ZX6. I remember how much traction I had but didn't steer worth a darn. That was the ZX6 though.
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Old 05-02-2016, 04:19 PM   #13225
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Originally Posted by cnelson3 View Post
are the hubs all the way forward in the arms? I'm about to pull the trigger on the RZ6 and your layout was the same layout I started with on my ZX6. I remember how much traction I had but didn't steer worth a darn. That was the ZX6 though.
Interesting. I have plenty of steering with my ZX6 setup this way. I'll check my hubs tonight. If they are not all the way forward, they will be. This chassis is way longer than the RB6.
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Old 05-03-2016, 08:54 AM   #13226
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Picking up an RB6 tonight. What are my options for laydown trans for carpet racing besides the RZ6 conversion? Not really looking to put that much more into it right away.
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Old 05-03-2016, 11:13 AM   #13227
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Picking up an RB6 tonight. What are my options for laydown trans for carpet racing besides the RZ6 conversion? Not really looking to put that much more into it right away.
If you believe the rumors they have a new car coming anytime, (i have heard May) that will either have or have a option of a laydown transmission.
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Old 05-03-2016, 01:46 PM   #13228
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If you believe the rumors they have a new car coming anytime, (i have heard May) that will either have or have a option of a laydown transmission.
Any idea if the parts will be compatible with the RB6?
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Old 05-03-2016, 03:52 PM   #13229
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It's a kyosho.... Most of the new parts should fit the old car if it's not just a conversion/update kit.
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Old 05-03-2016, 05:02 PM   #13230
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Just drove my newly built RB6 for the first time.

Kyosho RB6
Orion R10 Pro
Trinity D4 6.5T 50 timming
Trakpower 100C 2S saddle
23T pinion.

I was breaking the ball diff in real good on pavement going in circles slowly.

Then I started getting on it. Maybe I need to back the slipper down..

It literally wheelies while spinning the back tires across the parking lot. Lol.

What a blast, Trinity D4 is sick power. My Trinity 24K 6.5T will be here Thursday from Amainhobbies.

And I got a deal on a bunch of Schumacher pin tires.

All I can say is, I'm coming from 1/8 to get in to 2WD MOD/ stock racing. And the smoothness is on another level. Power delivery is like tearing through silk. If that makes sense lol.I turned a brand new set of $6.00 bar codes in to slicks in 5 minutes. I could not help my self.

Will be hitting the track this weekend.

Temps were coming off at 120f motor/ 110f esc


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