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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 10-07-2012, 05:26 PM   #1186
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My bad...I never knew the tungsten made the carbide magnetic. I managed to dig the diff balls from ths garbage lol.
Lol.....
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Old 10-07-2012, 05:34 PM   #1187
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anyone running on a tight track and having a little rotation issue? i'm good unless it's a 180. then i'm at a loss.
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Old 10-07-2012, 06:26 PM   #1188
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anyone running on a tight track and having a little rotation issue? i'm good unless it's a 180. then i'm at a loss.
RCRD ( RC Racing Designs ) is already prototyping as 4mm shorter chassis ,

look forward to the hard black anodized short rb6
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Old 10-07-2012, 06:30 PM   #1189
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anyone running on a tight track and having a little rotation issue? i'm good unless it's a 180. then i'm at a loss.
Without your setup we cant help you.
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Old 10-07-2012, 06:43 PM   #1190
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So so so close to getting one. I just havent ran a lot of 2wd buggy and I have the most bad ass WC rb5. Just had a body painted for it too. What do I do??

Will the rb5 wc body fit this thing at all? The J concepts finnisher to be exact
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Old 10-07-2012, 06:50 PM   #1191
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No need to go to a shorter chassis when the car has been out like 2 weeks.

That said, please post your setup. I've heard of traction issues but my buddy lapped the field on a relatively loose track this last weekend.
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Old 10-07-2012, 07:09 PM   #1192
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Originally Posted by K_King View Post
No need to go to a shorter chassis when the car has been out like 2 weeks.

That said, please post your setup. I've heard of traction issues but my buddy lapped the field on a relatively loose track this last weekend.
okay. it's almost all stock except the ball stud locations are tebo's hot rod hobbies locations. For the most part i know what to do when i have an issue but it just feels a little slow when trying to do a quick 180 styled turn. everything after that is great. i have been experimenting with full batteries and my shorty in just about every position available. diff has been run from loose to tight. I have had marginal success with adding a little droop but only slightly. Running 20.5mm in the "b" measurements and 27 in the rear.

let me know what you think.
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Old 10-07-2012, 07:35 PM   #1193
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okay. it's almost all stock except the ball stud locations are tebo's hot rod hobbies locations. For the most part i know what to do when i have an issue but it just feels a little slow when trying to do a quick 180 styled turn. everything after that is great. i have been experimenting with full batteries and my shorty in just about every position available. diff has been run from loose to tight. I have had marginal success with adding a little droop but only slightly. Running 20.5mm in the "b" measurements and 27 in the rear.

let me know what you think.
just realized i am running the .5mm kick up spacer and no one is running that anymore. this could actually be the problem.
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Old 10-07-2012, 07:54 PM   #1194
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Originally Posted by C_Money View Post
So so so close to getting one. I just havent ran a lot of 2wd buggy and I have the most bad ass WC rb5. Just had a body painted for it too. What do I do??

Will the rb5 wc body fit this thing at all? The J concepts finnisher to be exact
I stuck my Azarashi and bulldog rb5 bodies on for kicks, it will sort of fit but a bit bendy and not well at all.
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Old 10-07-2012, 07:57 PM   #1195
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Originally Posted by K_King View Post
No need to go to a shorter chassis when the car has been out like 2 weeks.

That said, please post your setup. I've heard of traction issues but my buddy lapped the field on a relatively loose track this last weekend.
Have you tried Gold springs in the rear, or are you still running red? I noticed with Red springs in the rear the back of my car would actually hop just a tad off the track and lose contact in the more bumpy areas. Changed to gold and that went away and traction came back. Only change I have made to the car from the Kyosho Japan starting setup.
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Old 10-07-2012, 07:59 PM   #1196
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Default RB6 what more can i say

raced today at cds second race on the car it was a lot better today with the shorty pack and some small changes i did with the setup . last week was TQ and won with a time of 23 in 7:11 and this week TQ and won with a time of 23 in 7:05 was a lot faster on rotation was great on the very tight track . will have the race video up soon . if anybody wants a good indoor clay tight track setup i can share .
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Old 10-07-2012, 08:33 PM   #1197
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raced today at cds second race on the car it was a lot better today with the shorty pack and some small changes i did with the setup . last week was TQ and won with a time of 23 in 7:11 and this week TQ and won with a time of 23 in 7:05 was a lot faster on rotation was great on the very tight track . will have the race video up soon . if anybody wants a good indoor clay tight track setup i can share .
share it.
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Old 10-07-2012, 09:24 PM   #1198
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Originally Posted by fastestwon View Post
raced today at cds second race on the car it was a lot better today with the shorty pack and some small changes i did with the setup . last week was TQ and won with a time of 23 in 7:11 and this week TQ and won with a time of 23 in 7:05 was a lot faster on rotation was great on the very tight track . will have the race video up soon . if anybody wants a good indoor clay tight track setup i can share .
Bring it on!
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Old 10-07-2012, 09:48 PM   #1199
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Have you tried Gold springs in the rear, or are you still running red? I noticed with Red springs in the rear the back of my car would actually hop just a tad off the track and lose contact in the more bumpy areas. Changed to gold and that went away and traction came back. Only change I have made to the car from the Kyosho Japan starting setup.
I havent but he runs golds.
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Old 10-07-2012, 10:42 PM   #1200
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I havent but he runs golds.
they keep the rear of the car on the ground. I just think kyosho put the reds in the kit because that's what tebo, and we all have run since the big bore shocks came out on the RB5. everybody here switched to golds and everybody noticed improvement in some area of the driving experience of the car. mine was the rear end lifting off the ground slightly in the bumpy bits with the Japanese setup, and pretty thick oils.
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