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Kyosho Ultima RB6 & RB6.6 Car Thread

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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 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 01-14-2015, 11:26 AM
  #11521  
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I have heard of guys using the tapered AE pistons, does anyone have experience with this or setup sheets utilizing them?
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Old 01-14-2015, 01:49 PM
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Originally Posted by cstoeltzing View Post
nice I need a mill in my garage bad....
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Old 01-14-2015, 03:00 PM
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Originally Posted by aloksatoor View Post
nice I need a mill in my garage bad....
I just used a dremel and a steady hand. I stopped frequently and checked the fit often. It was surprisingly easy.
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Old 01-14-2015, 03:16 PM
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Originally Posted by cstoeltzing View Post
I just used a dremel and a steady hand. I stopped frequently and checked the fit often. It was surprisingly easy.
Looks good brother. I wish I had a steady hand.
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Old 01-14-2015, 04:16 PM
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Originally Posted by cstoeltzing View Post
Looks nice
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Old 01-14-2015, 04:44 PM
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Originally Posted by cstoeltzing View Post
I just used a dremel and a steady hand. I stopped frequently and checked the fit often. It was surprisingly easy.
What bit did you use on the Dremel?
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Old 01-14-2015, 06:44 PM
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Originally Posted by Hollywood_26 View Post
What bit did you use on the Dremel?
I used a combination of dremel 540-01 cutting wheel and 431 sanding band. There may be better options, but that is what I had on hand.
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Old 01-14-2015, 08:02 PM
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When running the car in mid motor are you guys spacing the bottom of the rear shocks out with shims?? Looks like the spring is going to hit the turnbuckles.
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Old 01-14-2015, 08:42 PM
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Originally Posted by Potoczak View Post
When running the car in mid motor are you guys spacing the bottom of the rear shocks out with shims?? Looks like the spring is going to hit the turnbuckles.
Yes Pete, I do.
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Old 01-14-2015, 09:45 PM
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Originally Posted by Potoczak View Post
When running the car in mid motor are you guys spacing the bottom of the rear shocks out with shims?? Looks like the spring is going to hit the turnbuckles.
Just looked at my son's car he doesn't and has plenty of clearance, but he uses v2 rear hubs with the camber link in front inside hole so that gives him more clearance.
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Old 01-15-2015, 02:16 AM
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Hey guys!

Modded my side pod plastics to take a shorty battery sideways - didn't grind the chassis down though. Is a couple mm going to make that much difference? I guess CG is going to be higher and car will roll more?
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Old 01-15-2015, 04:16 AM
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Originally Posted by WagwanBumba View Post
Hey guys!

Modded my side pod plastics to take a shorty battery sideways - didn't grind the chassis down though. Is a couple mm going to make that much difference? I guess CG is going to be higher and car will roll more?
Yes it will make a difference, and should roll more. That might not be a bad thing though.
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Old 01-15-2015, 07:02 AM
  #11533  
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When doing the a arm mod, are you guys measuring from the center of the sway bar hole or from the side?
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Old 01-15-2015, 07:34 AM
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Originally Posted by Everybody79x View Post
I have heard of guys using the tapered AE pistons, does anyone have experience with this or setup sheets utilizing them?
I use them. Fit just fine but you will need to shim them on the shaft. I think I used .2 shim out of KYO96641.
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Old 01-15-2015, 07:35 AM
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Is there anyone out there machining chassis for people? I have done my side pods, but I would like to mill the chassis down. Unfortunately I don't have the proper equipment to do it correctly.

Thank you to those who sent pictures of their side pods, very helpful.

Hopefully Kyosho will come out with a side ways battery chassis and side pod package.
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