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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 03-27-2013, 09:14 PM
  #5926  
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Originally Posted by lbckevin View Post
The dent in the chassis does not affect the car at all.
It affects the aesthetics
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Old 03-27-2013, 09:45 PM
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Originally Posted by Cpt.America View Post
It affects the aesthetics
Exactly I might as well paint my car in puke.
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Old 03-28-2013, 07:43 AM
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Originally Posted by Todd Putnam View Post
Here is the RC Speedshop.com's RB6 "House Car."

First Kyosho Kit I have ever assembled - extremely impressed with the quality, fit and finish. The shocks reputation has been confirmed in my opinion - they are money!

Can't wait to get it dirty...
Hey Todd, will u be getting this mostly dirty up at Ferris or Catbox?
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Old 03-28-2013, 07:50 AM
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Originally Posted by Todd Putnam View Post
Thanks - I will keep it in mind...
I raced at rcmadness last week. Did have an issue with my transponder on chassis. moved to top of servo. no more issues
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Old 03-28-2013, 08:25 AM
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Does anyone have a good baseline setup for the kit stock car or point me in the right direction? Will be running on a high bite indoor clay track and will be the first outing with the Rb6.

Thanks guys.
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Old 03-28-2013, 09:27 AM
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Built the stock kit setup first. It's pretty dang good right outta the box! Then minor changes will most likely get you where u need to be.

Last night I played with the front hinge pin block, changing from 25 to 30* with a .5 shim on and off as well. 30* block with no shim reigned supreme at the track for me. As I felt this car has been slow mid and exit cornering. 30* gave me a tighter faster radius mid and exit. Initi corner entry really I felt no difference between the few options I tried. There is a little write up about this on petitrc in the rb6 setup shee area. Next I will play with the castor inserts. I am at 2* right now. So I believe I was at 32* total? Felt good
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Old 03-28-2013, 09:30 AM
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Originally Posted by dr_gonzo View Post
Does anyone have a good baseline setup for the kit stock car or point me in the right direction? Will be running on a high bite indoor clay track and will be the first outing with the Rb6.

Thanks guys.
Originally Posted by ryanpatrickgore View Post
Built the stock kit setup first. It's pretty dang good right outta the box! Then minor changes will most likely get you where u need to be.
Yep.. start with the kit setup and you will be just fine. The car is ridiculous right out of the box. The only thing missing, is shock oil. With the stock 5 hole pistons i would start with 37.5F 32.5R and tune from there.
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Old 03-28-2013, 10:22 AM
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Originally Posted by Cpt.America View Post
Yep.. start with the kit setup and you will be just fine. The car is ridiculous right out of the box. The only thing missing, is shock oil. With the stock 5 hole pistons i would start with 37.5F 32.5R and tune from there.
Excellent. Thank you guys!
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Old 03-28-2013, 11:43 AM
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I noticed that in mid config Tebo ran the RB5 wishbones the opposite way round. Does this shorten the wheel base?
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Old 03-28-2013, 09:45 PM
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This is probably a really stupid question, how could I tell which degree of caster am I running...? Thanks
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Old 03-28-2013, 10:25 PM
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Originally Posted by umm winning View Post
This is probably a really stupid question, how could I tell which degree of caster am I running...? Thanks
There are two ways to change your caster... with your front suspension hanger, and inserts that go into the caster blocks. Look under the bumper at the bottom of the front suspension hanger, and you will see 25/30 underneith, whichever is facing forward is how much kickup caster you are running. Then you can run 0, 2, or 4 degree inserts in the caster blocks themselves for different combonations of caster (i.e. 27, 29, etc)
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Old 03-28-2013, 11:39 PM
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Anybody know a part number or the size of the larger bearings in the aluminum 0* hubs?
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Old 03-29-2013, 01:18 AM
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5x13x4
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Old 03-29-2013, 05:22 AM
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Originally Posted by noworries View Post
Hey Todd, will u be getting this mostly dirty up at Ferris or Catbox?
Not sure if I will run it outside - may just keep it as an indoor clay track whip. I love both tracks - my attendance will depend on Sydney's softball schedule.

Originally Posted by noworries View Post
I raced at rcmadness last week. Did have an issue with my transponder on chassis. moved to top of servo. no more issues
I ran it for the first time Wednesday night @ Redneck. I raced on the wrong tires, but borrowed a set after the races and ran some practice packs and it was a different car - so impressed with this car. Killer whip.
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Old 03-29-2013, 06:44 AM
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WTF is a whip?
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