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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 02-05-2013, 03:02 PM
  #4966  
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Originally Posted by silvalis
what did you hit?
The ground.
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Old 02-05-2013, 03:06 PM
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Originally Posted by fullsyzz
The ground.
Weird mine might have been the running update in plastic. I went through 3 rear shock towers which those kinds of flips but never a plastic rear camber plate. I since put in the red exo for insurance and it being same weight.
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Old 02-05-2013, 03:39 PM
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Originally Posted by ryanpatrickgore
i thought i would try the saddles, but i already know i will probably go to a shorty.
next paycheck tho

Edit: what shorty packs are you guys running? i would like to get one at a decent price, dont want to spend 100$ if i dont have to, if its a good deal i wil get 2 . thanks
Crc all day 4200/40c I run I have beat the tar out of mine for 6 months now and just as good as day one. I run about 6 packs in practice and 2 quals and a 10 minute main in mod and zero fade.
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Old 02-05-2013, 05:38 PM
  #4969  
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Originally Posted by Cpt.America
Caster block positions refer to running the caster blocks in the outer position for a wider front track, or in the inner position for a more narrow front track.
Aha! You meant the hub carrier when you mentioned track width several pages back. I had forgotten that it has two options for track width now in the RB6. I thought you were talking about the different widths of suspension mounts (which some call the caster block).

OK - now I get it.
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Old 02-05-2013, 06:00 PM
  #4970  
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I've read the first post but i'm still confused about the rear suspension hangers. I'm running rear motor and broke the stock RF hanger and replaced it with the mid motor RF2. Was the original one a RF or RF2 ? The back hanger(RR) doesnt have any markings on it. So by my thinking if the back is a (RR) and im running a RR2 in front I have little or no rear toe in HELP !!!!
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Old 02-05-2013, 06:04 PM
  #4971  
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Originally Posted by fullsyzz
The ground.
sideways?
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Old 02-05-2013, 06:21 PM
  #4972  
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Technically it raises and lowers your front roll center, at the lower control arm position. No spacer for less roll/steering, larger spacer for more roll/steering. See if you can even tell a difference.
I tested this on the rb5wc. Thicker shim gives more mid/late corner steering. I didn't like the feeling. I thought the front end took to long to settle in the corner. Car became inconsistent.

On another note I ran the Cody turner setup from petit and it was very good. Better then the Japan setup imo.
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Old 02-05-2013, 06:54 PM
  #4973  
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Originally Posted by X God
I've read the first post but i'm still confused about the rear suspension hangers. I'm running rear motor and broke the stock RF hanger and replaced it with the mid motor RF2. Was the original one a RF or RF2 ? The back hanger(RR) doesnt have any markings on it. So by my thinking if the back is a (RR) and im running a RR2 in front I have little or no rear toe in HELP !!!!
The kit setup is RF2. Use the one packaged with the mid motor part not the one on the tree with the Tplate as it will break.

For the rear rear hanger use the wide one from the tree with the RF2.
Last edited by RodneyB; 02-05-2013 at 07:26 PM.
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Old 02-05-2013, 06:54 PM
  #4974  
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So are the castor blocks are part (111)UM715? I think the manual calls them a hub bush hence my confusion.
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Old 02-05-2013, 06:56 PM
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Originally Posted by RodneyB
The kit setup is RF2. Use the one packaged with the mid motor part not the one on the tree with the Tplate as it will break.

For the rear rear hanger use the narrow one from the tree with the RF2.
The setup sheet calls the rf2 the wide hangers. Is that a mistake? There are a number of spelling errors on the sheet.
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Old 02-05-2013, 07:25 PM
  #4976  
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Originally Posted by HalfManHalfGod
The setup sheet calls the rf2 the wide hangers. Is that a mistake? There are a number of spelling errors on the sheet.
Oops sorry I meant wide rear. Will change it.
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Old 02-05-2013, 07:31 PM
  #4977  
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Purchased my RB6 today from Scott @ TRCR. Getting back into the hobby after 20+ years. See all of you Seattle-area folks there in March!
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Old 02-05-2013, 07:34 PM
  #4978  
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Originally Posted by RodneyB
Oops sorry I meant wide rear. Will change it.

No worries. Up until yesterday I thought the rf2 were the narrow hangers.
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Old 02-05-2013, 07:45 PM
  #4979  
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Ok so you run RF2 & RR2 for a wide track and RF & RR for a narrow track correct ?
I just put on the aluminum RF & RR and I can see that I have toe in now,
I think i had the RR on when I put the RF2 on, Might explain why I had no traction on a dry track
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Old 02-05-2013, 07:47 PM
  #4980  
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Originally Posted by HalfManHalfGod
The setup sheet calls the rf2 the wide hangers. Is that a mistake? There are a number of spelling errors on the sheet.
That's how I had mine set-up UUGGGGG !!!!
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