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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread 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 05-07-2013, 09:23 PM
  #6691  
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Default Here is one to try

I have been having problems with bending the front hinge pin brace. Even the 720b is bending which is cause havoc with bending hinge pins and tearing up the hinge pin holder as well. I had an extra SCR alum (by STRC) sitting around and it is wider the the rb6 hinge pin holder. So what I did was use the wider aluminum hinge pin holder and narrow castor blocks so the wheels didn't get wider. I made a steel hinge pin brace to match the wider pin spacing and wala problem solved. The front end is now solid, surviving several crashes. I cannot detect a different feel in the front end as well. The angle of the front shocks is different, but couldn't differentiate in driving the rb6. Hoping someone will come out with a rb6 hinge pin brace in aluminum with a steel hinge pin brace, but in the mean time I'm sticking with this setup as it won't bend and doesn't effect the front end.

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Old 05-07-2013, 09:24 PM
  #6692  
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thats the other one I am trying to decide on. I currently have an RS but wanted to branch out and try something different.
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Old 05-07-2013, 09:24 PM
  #6693  
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Default Gen 2 rs

Originally Posted by vr6cj
ive had a few Rev pros and got tired of them bricking or going poof. They are very smooth when they worked though. I switched to the Gen2 rs and its every bit as good and smooth as any new esc.
How is the braking on the Gen 2 rs compared to a R10 pro 2-3 160 amp?

Turbo
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Old 05-07-2013, 10:35 PM
  #6694  
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IMHO avoid the rev pro because of its large footprint. For rb6 I would go with r10 or HW 3.1 (likely my next ESC) ymmv cheers,
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Old 05-07-2013, 11:29 PM
  #6695  
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Originally Posted by gelshocker
IMHO avoid the rev pro because of its large footprint. For rb6 I would go with r10 or HW 3.1 (likely my next ESC) ymmv cheers,
Have three of the red hobby wings. Best esc ever and the power switch is an awesome feature along with the pc tune options.
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Old 05-07-2013, 11:46 PM
  #6696  
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I caught a recent pic of Masami Hirosaka's yokomo f1 and it had a HW 3.1 in it. TQ and win (yeah I know it prob don't make a difference but hey the ESC survived). If you look at the yokomo website the ESC looks suspiciously like the HW. Cheers,
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Old 05-07-2013, 11:52 PM
  #6697  
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Originally Posted by gelshocker
I caught a recent pic of Masami Hirosaka's yokomo f1 and it had a HW 3.1 in it. TQ and win (yeah I know it prob don't make a difference but hey the ESC survived). If you look at the yokomo website the ESC looks suspiciously like the HW. Cheers,
He started racing again?
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Old 05-08-2013, 12:23 AM
  #6698  
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Some invitational / promotional event. Google "yokomo Waigo masami" for some YouTube clips. Cheers,
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Old 05-08-2013, 01:31 AM
  #6699  
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I've been running 4 Hobbywing V3's since the day they came out (over a year now) and I've had zero problems with them, racing up to 4 times a week.
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Old 05-08-2013, 04:00 AM
  #6700  
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Originally Posted by wild gopher
Sorry to dig up old old postings but I am looking at the Reventon Pro for my RB6 and I had a question about reliability and ease of programming. Is it the same as the other manufacturers in ease of use, or does it take some tweaking? What motor do you run with it? Any comparisons would be greatly appreciated.
I've been using 2 Reventon Pros since their release. One in m RB6. Zero issues. Super smooth. Easy to use with included LCD card. I use SP 8.5V3 in buggy and 7.5V3 in SC.
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Old 05-08-2013, 06:33 AM
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Originally Posted by Turbo911
No.UMW704-0
V2 Aluminum Rear Hub Carrier Set
(0゚/RB6/ZX/RT/SC)
Aluminum material delivers increased rigidity and durability. Aluminum rear hub carrier includes a choice of 3 different bearing bushes that improve drive efficiency and durability. 0゚ toe angle.
 
Available in May 2013

I copied this on the english version of kyosho.com.

Anybody know anything about this part.
Yes, this new Rear Hub is going to be awesome. Instead of having 3 different hubs on hand and having to replace the hubs for different tuning, you simply just have to change out the bearing holder. It will work much like the TKI3 in regards to the bearing holder but they will offer different degrees for tuning...
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Old 05-08-2013, 06:40 AM
  #6702  
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I dont understand. It will have inserts in the hubs to change toe? What do you mean by bearing holder?
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Old 05-08-2013, 07:01 AM
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A few mins of searching allowed me to find this pic of the new rear hubs.

Kyosho Ultima RB6 & RB6.6 Car Thread-pc1_l.jpg

http://kyoshoshop-online.com/kyosho/...&ggcd=UMW704-0
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Old 05-08-2013, 07:11 AM
  #6704  
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Is it a replaceable bearing holder so you don't have to throw out $50 hubs when they wear (that in and if itself would be awesome) or can you actually change rear toe with these? The marking if 0 on the hub seems to suggest the inserts do not change toe.
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Old 05-08-2013, 07:32 AM
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interesting, but how often do the hubs wear out. And he said it was for tuning, that is why I thought it was toe inserts.
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