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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 04-07-2015, 09:01 PM   #11911
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Wow sideways battery!!! Must try, made this car from OK to dialed! So much sidebite and so much rear traction. Also seemed to gain steering.. Just overall a must try, so good!
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Old 04-07-2015, 09:54 PM   #11912
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Originally Posted by 3srcracing View Post
Wow sideways battery!!! Must try, made this car from OK to dialed! So much sidebite and so much rear traction. Also seemed to gain steering.. Just overall a must try, so good!
glad to hear that. i just switched mine over and i have to say i really disliked my car with the inline setup so im looking forward to driving it now.
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Old 04-08-2015, 08:36 AM   #11913
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glad to hear that. i just switched mine over and i have to say i really disliked my car with the inline setup so im looking forward to driving it now.
I'll keep a look out for your experience with this mod, I'm building my car as we speak.
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Old 04-08-2015, 08:58 AM   #11914
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Originally Posted by 3srcracing View Post
Wow sideways battery!!! Must try, made this car from OK to dialed! So much sidebite and so much rear traction. Also seemed to gain steering.. Just overall a must try, so good!
May try it if I dont have to to touch the chassis.
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Old 04-08-2015, 09:31 AM   #11915
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Losipartshouse.com has 3 sets of the um713b arms in stock right now.
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Old 04-08-2015, 09:55 AM   #11916
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Originally Posted by jpcopeland1 View Post
May try it if I dont have to to touch the chassis.
I only cut down the side guards on mine and it felt fine. I also drilled a hole in my rear arms too but now I have to much forward bite for my taste.

Here is a picture of Jared's car from SRS where you can see the chassis so now you can see how he is running his car.
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Old 04-08-2015, 10:02 AM   #11917
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Originally Posted by M03Racer View Post
Here is my set up. I will be running a mid battery set up. Some of the guys at the track ran rear battery set up last year and they where just a bit off balanced on the jumps so I figured to try a mid battery set up. Now I just have to test the car to see how it handles but the track is still closed here since it's still cold hope we will get better weather soon.
Is that a traxxas receiver box?
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Old 04-08-2015, 10:06 AM   #11918
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Is that a traxxas receiver box?
LOL... where the hell on that pic are you seeing anything traxxas?
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Old 04-08-2015, 10:09 AM   #11919
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in front of the battery.....not tebo's car...the picture from the guy I quoted
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Old 04-08-2015, 10:11 AM   #11920
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The servo looks to be a traxxas 2075 (maybe?) As well?
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Old 04-08-2015, 10:12 AM   #11921
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Originally Posted by Kraig View Post
I only cut down the side guards on mine and it felt fine. I also drilled a hole in my rear arms too but now I have to much forward bite for my taste.

Here is a picture of Jared's car from SRS where you can see the chassis so now you can see how he is running his car.
So just side guards. If I feel the need to change (car is so good right now) I will. But so far its dialed for the tracks I run at. Looks like he is running the out hole on the RT6 which I changed to when I was at SRS this past weekend. Truck is planted and fast. Didnt have to change a thing for it to have the same results here at home. K cars are just better for me then anything else. My ZX6 is quite a step up from the 44.3 and my diffs will last without having to resort to gear diffs.
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Old 04-08-2015, 10:14 AM   #11922
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Is that a traxxas receiver box?
well.... whatever works for some.
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Old 04-08-2015, 10:15 AM   #11923
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Originally Posted by jpcopeland1 View Post
So just side guards. If I feel the need to change (car is so good right now) I will. But so far its dialed for the tracks I run at. Looks like he is running the out hole on the RT6 which I changed to when I was at SRS this past weekend. Truck is planted and fast. Didnt have to change a thing for it to have the same results here at home. K cars are just better for me then anything else. My ZX6 is quite a step up from the 44.3 and my diffs will last without having to resort to gear diffs.
lol, the b44.3 is a POS. Locals are ditching them for d413s now. The RB6 is a good car for sure. How did you like SRS?
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Old 04-08-2015, 01:06 PM   #11924
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lol, the b44.3 is a POS. Locals are ditching them for d413s now. The RB6 is a good car for sure. How did you like SRS?
SRS was a blast. I like how high up you are from the track so there are no blind spots, and making the triple in mod ST was so gratifying. Had a very good time avoiding the Short Bus people with Traxxas Slashes with stock tires. Definitely slicks were the way to go. So much bite, any tire with a tread stunk. Got quite a few compliments, and confused stairs when I had the ZX6 out. Like they had never seen one before lol.... Was one guy there with a T5m I had hoped to throw down some laps with, but his kit wasn't complete.
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Old 04-08-2015, 01:09 PM   #11925
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lol, the b44.3 is a POS. Locals are ditching them for d413s now. The RB6 is a good car for sure. How did you like SRS?
I had the odd problem of the standard screws backing out from the rear arms. Broke as many of those as I would have any fronts if I was running stock front arms. Car was good, just very frustrating.
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