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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 08-19-2012, 07:25 PM
  #436  
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Looking at the pics from the supernationals, it looks as though we now have the option to run the rear shocks on the front or rear of the arm like with the Lazer.

Supernationals picture:


Press release picture:
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Old 08-19-2012, 08:02 PM
  #437  
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Press release pic is mid motor, supernats pic is rear.
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Old 08-19-2012, 08:15 PM
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Originally Posted by asc6000
not true, same for most top level cars. Even puds like me can build a car out of the box at a big race and finish 2nd to Kinwald. I can also change so much stuff I get my car so out of tune I can barely run mid pack locally sometimes. Done both.
Pick up one of the latest RB5 setup sheets, and you'll need to dremel the original front tower to free up the big bores and build a +13mm chassis. Body is not Kyosho it is Proline bulldog. Not to mention the NCG arms will set you back a fair coin, whereas RB6 comes with gull wing arms stock. Though RB5 parts will be in ample supply I expect RB6 setup development going forward.

I never said you can't run the car box stock either, more power to you
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Old 08-19-2012, 08:22 PM
  #439  
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Originally Posted by Eric Tomczyk
Press release pic is mid motor, supernats pic is rear.
Good work, I'm not as observant as I thought! ha ha
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Old 08-20-2012, 08:52 AM
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Was tebo running the SP2 or the WC front hinge pin holder on the RB6? I know it was blue, as shown in the previous pics, but it is hard to tell which one it is. In the manual, it appears the hinge pin holder and the bulkhead have new part numbers. Anyone know if they are different? Or which version he was using?

Also did he have red or pink springs in the rear? The color was hard to decipher.
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Old 08-20-2012, 09:32 AM
  #441  
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Originally Posted by Entr0phy
Also did he have red or pink springs in the rear? The color was hard to decipher.
He was running red rear, and pink front.
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Old 08-20-2012, 09:33 AM
  #442  
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Questions for the Ultima Gurus....

Ride height for RB6 or RB5

Any toe or Camber angles

Gearing 48 pitch on these cars

Saddle packs or Single Layout

What is the mm of the wheel hexes

This may be my next build... May retire the b4.1
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Old 08-20-2012, 09:43 AM
  #443  
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^^^^

Ride height varies but you can start with front arms level and rear bones level, toe varies as well but I run 1 degree negative camber front and rear and no toe. 48p gears. Single stIck or shorty pack and 12 mm hexes all around.
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Old 08-20-2012, 10:56 AM
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Originally Posted by Posvar
^^^^

Ride height varies but you can start with front arms level and rear bones level, toe varies as well but I run 1 degree negative camber front and rear and no toe. 48p gears. Single stIck or shorty pack and 12 mm hexes all around.
Got it. You think your height is equal front and rear about 25mm
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Old 08-20-2012, 11:09 AM
  #445  
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Close. 23-25 is about right. That is just me....the other guys may have better info.
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Old 08-20-2012, 11:39 AM
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24mm front, 23.5mm rear is pretty standard to start with, then tune to the track conditions.
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Old 08-20-2012, 05:36 PM
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Originally Posted by mdowney
24mm front, 23.5mm rear is pretty standard to start with, then tune to the track conditions.
Thanks Guys... I might just get into this build in September
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Old 08-20-2012, 06:38 PM
  #448  
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Will the rb5 pitbull body work on rb6?
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Old 08-20-2012, 07:16 PM
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Originally Posted by yodace
Will the rb5 pitbull body work on rb6?
With the way the chassis is laid out and with the increase in length it obviously won't be a direct fit. If you put it on there I expect it to distort the body into something that just won't work as good as the stock body.

This is all speculation on my part though. When I decide to get one I won't be using the body off of my RB5.
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Old 08-20-2012, 07:44 PM
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Yeah, the chassis on the RB6 is significantly more narrow. I wouldn't expect an RB5 body to be usable on an RB6.
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