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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 03-06-2013, 04:55 PM
  #5536  
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Originally Posted by silvalis
Anyone tried to jam an LRP Flow/Nosram Comet esc under the bulkhead? I'm not sure how tall these are...
U can get it partially under the bulkhead and make it fit. The wires are the problem not the case.
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Old 03-06-2013, 06:24 PM
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Originally Posted by kyle3333
Has anyone tried this stuff? I know there is a thicker version, but I wondered if this would hold up at least for indoor racing. Plus it was the only stuff I could find wide enought to do the ZX-5.

http://www.amazon.com/gp/aw/d/B005YS..._ya_os_product
too wide.. use the 4". I use the 20mil stuff, and it works flawlessly.
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Old 03-06-2013, 08:30 PM
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Thanks for the help Brandon. Just received the kit today along with some other goodies will post pics later. I pulled the trigger on the avid Triad setup which should make easier on switching between the gears. What battery are u running?
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Old 03-06-2013, 08:47 PM
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Originally Posted by Speedychris22
Thanks for the help Brandon. Just received the kit today along with some other goodies will post pics later. I pulled the trigger on the avid Triad setup which should make easier on switching between the gears. What battery are u running?
You're welcome... best battery on the market

http://www.fantomracing.com/proddeta...?prod=FAN26173
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Old 03-07-2013, 10:08 AM
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i been using the 3m tape for a chassis protector and its a pain in the ass to tigghten the screws without them dragging the tape around! what are you guys doing with that?
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Old 03-07-2013, 10:11 AM
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Check out calpico tape. We get it at work its black and it's like super super thick and 4-6" wife rolls.
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Old 03-07-2013, 10:19 AM
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I used to use the tape but I tune the battery packs too much so I removed it in a month. My chassis does not scuff up that much. Have very minor scuffing. The only big one is on my porch where it caught the curb, the dirt on our tracks pretty fine and even and not many rocks.
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Old 03-07-2013, 10:19 AM
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i am getting ready to trim the rear spoiler. how much should I take off the rear?
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Old 03-07-2013, 01:15 PM
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Originally Posted by Speedychris22
i am getting ready to trim the rear spoiler. how much should I take off the rear?
Depends on how much wing you want to run! I ran very little wing on my RB5... but run a bit more on my RB6. Now that I think about it, it's one piece I left off my setup sheet too. I typically cut down about 1/2 off the back facing lip. I think 1.5 lines still showing is what I run. See if you can tell in these pics..

http://brandonpcollins.com/misc/rc/rb6/7.jpg
http://brandonpcollins.com/misc/rc/rb6/4.jpg

Get yourself a couple wings, one cut lower, one cut in the middle, and one cut higher, and see how they work for you. The biggest change I feel, is rear traction in medium and high speed steering (think sweeper)
Last edited by Cpt.America; 03-07-2013 at 01:27 PM.
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Old 03-07-2013, 02:45 PM
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Whats the part number for the outer hinge pins when you are using the RB5 rear arms?

Thanks
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Old 03-07-2013, 02:48 PM
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Originally Posted by Cpt.America
Depends on how much wing you want to run! I ran very little wing on my RB5... but run a bit more on my RB6. Now that I think about it, it's one piece I left off my setup sheet too. I typically cut down about 1/2 off the back facing lip. I think 1.5 lines still showing is what I run. See if you can tell in these pics..

http://brandonpcollins.com/misc/rc/rb6/7.jpg
http://brandonpcollins.com/misc/rc/rb6/4.jpg

Get yourself a couple wings, one cut lower, one cut in the middle, and one cut higher, and see how they work for you. The biggest change I feel, is rear traction in medium and high speed steering (think sweeper)
Thanks Brandon, not kissing up but ur an asset to this thread. Also when I build the kit am I building to a specific setup?
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Old 03-07-2013, 02:49 PM
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On Tebo's set up, anyone know why type oil he uses?
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Old 03-07-2013, 02:58 PM
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Originally Posted by REED-T
Whats the part number for the outer hinge pins when you are using the RB5 rear arms?

Thanks
LA229
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Old 03-07-2013, 03:13 PM
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I'm thinking of turning the steering rack backwards to "calm" the car (it's pretty pointy) this mod pushes the ballstuds back towards the rear of the car ... My question is, why are some guys running a 1mm spacer under the ballstuds on the steering rack? This pushes the studs even further forwards on the car, so wouldn't that make it even more darty?? or am I confused on the whole Ackerman theory
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Old 03-07-2013, 04:06 PM
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Originally Posted by Speedychris22
Thanks Brandon, not kissing up but ur an asset to this thread. Also when I build the kit am I building to a specific setup?
I would probably start with the kit setup. Stock pistons, 37.5 oil front, 30 or 32.5 rear... And tweak from there. If you have any information on your track surface and overall traction level, we can help you fine tune from there.

Step one is always tires though!

(and thanks... and you're welcome)
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