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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 09-22-2017, 07:15 PM   #14401
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Default Doesn't seem right??

Using the 0.3 mm washer as manual states, my rear wheels and cva have huge ( 2mm ) horizontal movement from my hub carriers? Is this right, thinking I need to add 1.5 mm washer?
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Old 09-22-2017, 07:26 PM   #14402
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[QUOTE=powerpig;15036411]Using the 0.3 mm washer as manual states, my rear wheels and cva have huge ( 2mm ) horizontal movement from my hub carriers? Is this right, thinking I need to add 1.5 mm washer?[\QUOTE]

Are you using the 2 line or 3 line rear axles? If using the stock 2 line axles the .3 shim and a 1.5 spacer is used. If you are using the 3 line axles you will have to use a 3mm brass axle spacer.
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Old 09-22-2017, 07:44 PM   #14403
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[QUOTE=Michael#81;15036424]
Quote:
Originally Posted by powerpig View Post
Using the 0.3 mm washer as manual states, my rear wheels and cva have huge ( 2mm ) horizontal movement from my hub carriers? Is this right, thinking I need to add 1.5 mm washer?[\QUOTE]

Are you using the 2 line or 3 line rear axles? If using the stock 2 line axles the .3 shim and a 1.5 spacer is used. If you are using the 3 line axles you will have to use a 3mm brass axle spacer.
Yes stock. Brass collar in between bearings in hub. Will add 1" spacer. Thanks for quick reply!
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Old 09-23-2017, 12:28 AM   #14404
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Been running kyosho many years, always have used the aluminum shock caps. Any of you run the plastic caps with the bleeder screws? Just curious, because I noticed some of the factory AE guys using plastic caps on their b6's. Im going to see how week they hold up. I've just never given those caps a try..
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Old 09-24-2017, 05:23 PM   #14405
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Would anyone happen to know the part# to the low mount ballstud to use on the rear bulkhead of the RB6.6 to get more roll out of the car instead of using the stock ones? Thanks guys
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Old 09-24-2017, 05:45 PM   #14406
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Originally Posted by TheRcworld101 View Post
Would anyone happen to know the part# to the low mount ballstud to use on the rear bulkhead of the RB6.6 to get more roll out of the car instead of using the stock ones? Thanks guys
The only low mount ball stud I know of is the LA246. Never used it on the rear bulkhead but mainly on the steering.
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Old 09-24-2017, 05:47 PM   #14407
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The only low mount ball stud I know of is the LA246. Never used it on the rear bulkhead but mainly on the steering.
I have never ran them in steering..gives you a little more steering correct? Besides that I don't think there is one for the rear bulkhead
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Old 09-24-2017, 06:02 PM   #14408
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I have never ran them in steering..gives you a little more steering correct? Besides that I don't think there is one for the rear bulkhead
Not really more steering but a consistent feel. If you run it on the steering rack it will change the ackerman and give you a little more stable and calmer steering. Just like turning the steering plate around to calm the car down and not make it so twitchy. If the track is really slick and you are getting a lot of oversteer it would be good to try to not change the whole setup.
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Old 09-24-2017, 06:07 PM   #14409
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Originally Posted by Michael#81 View Post
Not really more steering but a consistent feel. If you run it on the steering rack it will change the ackerman and give you a little more stable and calmer steering. Just like turning the steering plate around to calm the car down and not make it so twitchy. If the track is really slick and you are getting a lot of oversteer it would be good to try to not change the whole setup.
Ahhh ok. I never tried that on mine. Will get me a few and see though. Thanks man
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Old 09-28-2017, 08:14 PM   #14410
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Besides the Kyosho brand pistons that come with the kit and the options that they sell..What other pistons have you guys ran on them that work well to? I was looking at schelle pistons. Was wondering if Ae pistons work on the K shocks. To be able to get 2x1.7 and other options. Thanks
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Old 09-29-2017, 05:56 AM   #14411
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I have used VRP Shock Pistons.

If you use the Associated ones, make sure you don't get the V2's. Those attach to the shock shaft with a small screw.
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Old 09-29-2017, 07:09 AM   #14412
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Quote:
Originally Posted by TheRcworld101 View Post
Besides the Kyosho brand pistons that come with the kit and the options that they sell..What other pistons have you guys ran on them that work well to? I was looking at schelle pistons. Was wondering if Ae pistons work on the K shocks. To be able to get 2x1.7 and other options. Thanks
To use the Schelle (and likely Associated) pistons, you will have to use a shim on the shock shaft between the piston and e-clip. Otherwise there is a lot of play due to them being thinner. I ran them a long time ago since I had them on hand, but ended up getting another set of Kyosho 1.6's and drilling them to 1.7 since they fit better.
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Old 09-29-2017, 10:11 PM   #14413
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Originally Posted by alex4r View Post
To use the Schelle (and likely Associated) pistons, you will have to use a shim on the shock shaft between the piston and e-clip. Otherwise there is a lot of play due to them being thinner. I ran them a long time ago since I had them on hand, but ended up getting another set of Kyosho 1.6's and drilling them to 1.7 since they fit better.
I'll probably end up drilling the 1.6's out to 1.7. K pistons are probably going to fit the best and work the best with the K shocks.
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Old 09-30-2017, 02:07 AM   #14414
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Originally Posted by TheRcworld101 View Post
I'll probably end up drilling the 1.6's out to 1.7. K pistons are probably going to fit the best and work the best with the K shocks.
http://www.kyoshoamerica.com/Shock-P...cs_p_8038.html
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Old 09-30-2017, 02:10 AM   #14415
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Jason Dias - What's the latest and greatest setup for med/high bite nowadays? Your buggy looks good. You running the 1.6/1.7 setup or the old school 1.4x3 front and 1.6 rear? Any new setups out there you're hiding? Lol

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http://www.kyoshoamerica.com/Shock-Piston17mmx1-Hole2Pcs_p_8038.html
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