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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 01-25-2017, 05:23 AM   #14146
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Quote:
Originally Posted by MX304 View Post
How does the 6.6 compare out of the box to the B6 and YZ-2 for turf racing? Don't see much discussion on that. I'm going to run mod so cut gears etc aren't a concern.
Both are lighter than the RB6.6 BUT as most people in the UK run weight under their LiPos on those brands it just means we don't have to!

I'll be sending Petit a setup very soon (this week hopefully) that is so easy to drive yet carries so much corner speed on astro turf.

So far I've had a B6 and YZ2 driver move to RB6.6 after driving mine
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Old 01-25-2017, 05:36 AM   #14147
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Quote:
Originally Posted by RogerM View Post
^^^^^ should be in the kit as part of the 3 gear stand up transmission bag!
Yeah agreed, i think the other bulkhead supplied in the 6.6 will work as RogerM pointed out. (I had a 724B handy so used that when i originally had the arms on the rear).
Its the other bulkhead on this tree http://www.kyoshoamerica.com/Rear-Bu...D_p_24560.html
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Old 01-25-2017, 12:22 PM   #14148
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I used my new rb 6.6 on carpet last weekend. It such a great car. I used Akimoto astro setup and I have found a great corner entry but oversteer on rear so Ive used 500 cst in each shock with red spring on the rear and gold in front. I raced on an indoor carpet track at 7 degree celsius so very cold. I want to test the car furhter but what a car this Kyosho.

impressed.

Any advise are welcome
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Old 01-26-2017, 04:50 AM   #14149
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Do you have a link to that setup?
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Old 01-26-2017, 05:27 AM   #14150
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Quote:
Originally Posted by RogerM View Post
Do you have a link to that setup?
http://site.petitrc.com/setup/kyosho...Arena20161010/
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Old 01-26-2017, 09:14 AM   #14151
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Maintenance tips: noticed a lot of slop in the rear arms. Anyone have links to shims to purchase? Aluminum not advisable? Looking for general maintenance tips for keeping the buggy slop free. Thx all
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Old 01-26-2017, 09:50 AM   #14152
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Originally Posted by JAE View Post
Maintenance tips: noticed a lot of slop in the rear arms. Anyone have links to shims to purchase? Aluminum not advisable? Looking for general maintenance tips for keeping the buggy slop free. Thx all
The arms can have a bit of play in them. Kyosho has a shim set. Just make sure the arms still move freely after shimming.

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Old 01-26-2017, 04:37 PM   #14153
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Thanks! Will pick those up

Quote:
Originally Posted by tel View Post
The arms can have a bit of play in them. Kyosho has a shim set. Just make sure the arms still move freely after shimming.

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Old 01-26-2017, 04:38 PM   #14154
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Anyone know where to pickup a clear Rb6.6 body? out of stock. everywhere
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Old 01-26-2017, 06:39 PM   #14155
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Quote:
Originally Posted by JAE View Post
Anyone know where to pickup a clear Rb6.6 body? out of stock. everywhere
I've been waiting on Amain as well. I have a NIP LW body, but think I'd rather have the regular body - if I'm spending $50 on a custom paint job.

Last I checked, Stormer listed 3 regular bodies in stock, but I didn't want to pay the shipping.
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Old 01-26-2017, 10:08 PM   #14156
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LW body is very flimsy. Good choice. Bit the bullet and picked up 2 of the 3 left at stormer

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Originally Posted by BK24 View Post
I've been waiting on Amain as well. I have a NIP LW body, but think I'd rather have the regular body - if I'm spending $50 on a custom paint job.

Last I checked, Stormer listed 3 regular bodies in stock, but I didn't want to pay the shipping.
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Old 01-27-2017, 01:11 AM   #14157
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Default Rb 6.6 looking to buy

Im looking to buy a rb 6.6 however just looking for some feedback on what they are like on a outdoor dirt track (lose/medium) with stand up tranny compared to say a b6d or yz2 dirt edition

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Old 01-27-2017, 02:37 AM   #14158
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Quote:
Originally Posted by lynx75 View Post
I used my new rb 6.6 on carpet last weekend. It such a great car. I used Akimoto astro setup and I have found a great corner entry but oversteer on rear so Ive used 500 cst in each shock with red spring on the rear and gold in front. I raced on an indoor carpet track at 7 degree celsius so very cold. I want to test the car furhter but what a car this Kyosho.

impressed.

Any advise are welcome
On the Akimoto setup, when they have 3,000 near gear diff do they mean 3,000 cst diff oil?

Thanks!
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Old 01-27-2017, 08:20 AM   #14159
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Quote:
Originally Posted by LoudOne View Post
On the Akimoto setup, when they have 3,000 near gear diff do they mean 3,000 cst diff oil?

Thanks!
Yes, all diff oil ratings are CST. Most 1/8th scale offroad companies offer diff oils in 1k, 3k, 5k, 7k, etc CST weights. If you want closer weights for 1/10 diff tuning you can get the Kyosho diff oils like the following.

SIL2000
SIL3000
SIL4000
SIL5000
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Old 01-27-2017, 12:27 PM   #14160
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Default New 6.6 carbon battery strap

Dope new strap eliminates waterfall and uses a turnbuckle


http://rawspeedrc.com/kyosho-rb6-6-custom-battery-strap-set-up/
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