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Kyosho Ultima RB6 & RB6.6 Car Thread

12-21-2016, 08:46 AM - Wikipost

R/C Tech ForumsThread 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:

Main chassis - UM731 - $125.99
Side guards - UM732 - $9.99

Battery Holder:

Battery plate - UM733 - $8.99
Battery foam - UM741 - $7.99

Rear Bulkheads:

MM3 and Laydown - UM740 - $9.99
- MM3 bulkhead
- Laydown bulkhead
- Swaybar Holders

3 Gear Transmission (MM and RM):

Transmission - UM734 - $10.99
- transmission cases
- spacers
- caps
- plastic FR & RR suspension hangers
Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):

Transmission - UM736 - $10.99
- transmission cases
- spacers
- caps
- required extra hardware
- pastic FR suspension hanger
40T idler - UM737 - $6.99
Motor plate - UM738 - $18.99
Gear cover - UM739 - $6.99

Body:

Blade body - UMB05 - $27.99

Optional Parts:

Lightweigt Blade body - UMB05LW - $31.99
Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
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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04-02-2013, 06:29 PM

#6031

gelshocker

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Quote:

Originally Posted by ryanpatrickgore

Haven't broken anything yet. Just warped the front 30* block a bit and the stock front pin retainer bends after a while. Losi xxx is cheaper and never bends.
I wouldn't waste this car on an 8yr old. Give her the b4 or te 22. no parts needed other than stock. Amazing huh?

Would you have the Losi xxx part number? I assume it is the same width as the stock retainer. Thx,

04-02-2013, 11:49 PM

#6032

sir_thomas

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Quote:

Originally Posted by Theroc

Thomas,

I switched to a similar setup last week.(Dunlap helped me out) Anyway its about 95% the same as your current setup. This setup is better (for me) than the one using rb5 arms, I feel its more consistant.

So if any of you want to try Trans setup... I would. 3 of us at our local track have switched to it from the TEBO variation and pefer it.

Yah the biggest thing was getting the RB6 arms to work and this was an idea I had using the inside hole on the arm instead of middle or outside like we're so accustomed to using with the old RB5 platform. Since Tebo uses the rb5 arms...he abandoned the RB6 arms and unfortunately so did everyone else. I don't think I will ever go back to the 521-1 arms as I feel there is no need as this setup has more corner speed than the rb5 flat arms, but yet easy to drive.

Dunlap is absolutely flying with this setup and its just a matter of time he wins a big race with it and will be posted on the Kyosho website. So far, everyone that has tried this setup feels that its better than the Tebo setup...plus you get to use RB6 parts. I hate the idea of buying the new car and putting on the old parts. It's just a band aid.

Let me know if your lap times improve. I'd love to hear feedback as this is just a base setup. It can always get better.

Rocky, I would love to come down....but usually working on weekends since the new job started back in Dec.

04-03-2013, 03:13 AM

#6033

David Home

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Join Date: Jan 2011

Location: N.Ireland

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Can anyone help me out with the correct part number for the battery brace in this picture???

Thanks

04-03-2013, 11:26 AM

#6034

HalfManHalfGod

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As far as I know that was a prototype part and was never offered for retail.

04-03-2013, 11:31 AM

#6035

pekow91

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I have to rebuild my thrust bearing and I lost my grease that came with the kit. A new container of 3 grams of Kyosho Drive Joint Grease sells on Amain for about $15. I wanted to know if there was a better alternative or should I just get the Kyosho stuff.

04-03-2013, 11:32 AM

#6036

Cpt.America

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Quote:

Originally Posted by pekow91

I'd just grab the AE black thrust grease... works perfect, and inexpensive. Iv never had an issue with it.
(http://www.amainhobbies.com/product_...ack-Grease-4cc)

04-03-2013, 11:45 AM

#6037

pekow91

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Quote:

Originally Posted by Cpt.America

I'd just grab the AE black thrust grease... works perfect, and inexpensive. Iv never had an issue with it.
(http://www.amainhobbies.com/product_...ack-Grease-4cc)

Thanks for the recommendation. I will pick some up.

04-03-2013, 11:47 AM

#6038

MikeXray

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Quote:

Originally Posted by Cpt.America

I'd just grab the AE black thrust grease... works perfect, and inexpensive. Iv never had an issue with it.
(http://www.amainhobbies.com/product_...ack-Grease-4cc)

+1 The K clear grease is actually really nice, but I could never tell the difference between AE and it once the diff is built. I use AE black on every thrust in any car

04-03-2013, 03:05 PM

#6039

David Home

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Quote:

Originally Posted by HalfManHalfGod

As far as I know that was a prototype part and was never offered for retail.

Thank you

04-03-2013, 03:54 PM

#6040

ryanpatrickgore

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Quote:

Originally Posted by gelshocker

Would you have the Losi xxx part number? I assume it is the same width as the stock retainer. Thx,

Honestly I can't find a number, all I can find is a graphite version at amain. Next time I go to my shop I will see if I can get a part number. It is worth trying if you have been bending braces, mine is rock solid now

04-03-2013, 07:02 PM

#6041

brwn bggr

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I went to my first race in twenty years tonight...I repeat...I "went" to my first race tonight...I was running some practice laps at AMS in Flint,Michigan...nice clay track...I am running my rb6 mid motor...and I had really good traction,font and back...but a problem occurred with one set of jumps..a triple...its not hard to clear it but...on the fourth or fifth lap,I decided to clear the triple and the next turn without touching the ground...Ooooops! While in the air,I had a lot of time to think,I could tell by my excessive speed that I was going to clear that entire side of the track...maybe 7 or 8 hundred feet...maybe more...I knew my only hope was to slow my "air" speed down...so I started shaking the radio in my hands which in turn caused the car start cartwheeling...this of course brought the buggy to stall speed and it started to fall to the track as planned...but wouldn't you know,there were two other buggy's right in my intended landing zone...my only choice was to land sideways on one wheel...I chose to land on one of the rear wheels so as not to disturb my steering settings...I have performed this landing before...(I am a professional stunt driver)...anyways,wouldn't ya know it...the dang rear suspension holder broke...(plastic)...the pro shop at AMS had the parts to fix rm,but not for mm and I didn't have enough time before qualifying to turn everything around,I just packed up...so in closing,if you want a buggy that's easy to drive,nicely balanced,fast and smooth...the rb6 might be a good choice...too bad it can't take a little betty one point landing...

04-03-2013, 07:20 PM

#6042

silvalis

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I'm not entirely sure what you just said. You did a 7 or 800 foot jump?

04-03-2013, 07:23 PM

#6043

Cpt.America

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Quote:

Originally Posted by silvalis

I'm not entirely sure what you just said. You did a 7 or 800 foot jump?

hes kidding

Quote:

Originally Posted by brwn bggr

,if you want a buggy that's easy to drive,nicely balanced,fast and smooth...the rb6 might be a good choice...too bad it can't take a little betty one point landing...

Yeah.. not the best buggy for novice drivers over driving the track. Traxxas slash might be a better place to start.

04-03-2013, 07:27 PM

#6044

silvalis

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Has anyone tried those new AKA 3ribs? Vs JConcepts Rips?

04-03-2013, 07:38 PM

#6045

Rfury

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I am going through my car after running the Psycho Nitro Blast a couple of weeks ago. All I will say is... Say NO to wood jumps. My front arms, front skid plate/bumper, rear arms and rear bumper/motor guard are all trashed. The front arms nearly wore through to the hinge pins on the inner pivot.

I have replaced everything but the rear arms. I just don't have any more 521 rear arms. It might be time to experiment with the RB6 rear arms...