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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 09-04-2015, 05:33 PM   #12391
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Originally Posted by cnelson3 View Post
if you don't have the spacer between the inner and outer bearing, that will do it. If you have the spacer, a bearing could be bad or the hex on the wheel might be pressing on hub.
Ok,yea I don't have that spacer between the bearings(law253). I think that's why I keep blowing out the inner bearings. Thanks
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Old 09-05-2015, 05:39 AM   #12392
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Ok,yea I don't have that spacer between the bearings(law253). I think that's why I keep blowing out the inner bearings. Thanks
We all learn that lesson the hard way. That spacer is there to put all the load of tightening the axles on the inner race of the bearing. Without that spacer, you are essentially pushing the inner race one way and the outer race the other. Binds up the balls
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Old 09-05-2015, 04:13 PM   #12393
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Went back to the 76 spur as recommended and dropped the timing to 10 on the motor. Zero SC timing. Thing got hot. Way hotter than when I was at 30 degrees timing. Dropped to a 20 pinion and still hot. I was at 84/22 so gearing is back close to where I was. I don't see how less motor timing would make it run hotter.
Something seems off here. Any pics I've seen of these motors have the letters lined up with the solder tabs. Mine are way off at 10 degrees and lined up at 30. I don't remember but did it have 30 out of the box? Guh..

I should be aligned to this notch in the case no? If my timing is actually way retarded that would make it hot I assume.


I actually turned some of my fastest laps today but that had more to do with finally making slicks work.
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Old 09-06-2015, 06:21 AM   #12394
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looks like the glue in the can let loose and something inside shifted. time to send it in
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Old 09-06-2015, 09:30 AM   #12395
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looks like the glue in the can let loose and something inside shifted. time to send it in
Thanks for the reply Eper!!
I didn't even notice it. Yup. The whole end of the can is loose and coming off. Lord knows how long I've been fighting this.
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Old 09-06-2015, 10:09 AM   #12396
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Just about ready, bodies are being painted and waiting on my power supply to get here and all systems a go! My 6 year old Son is so happy, bugs me everyday.





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Old 09-06-2015, 10:19 AM   #12397
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Hi guys.
Does anybody know who makes gearcover for 3 gear gearbox?
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Old 09-06-2015, 01:24 PM   #12398
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Hi guys.
Does anybody know who makes gearcover for 3 gear gearbox?
I just ordered a couple from a guy on FB that was linked or posted back on pg. 815 or something.
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Old 09-06-2015, 04:55 PM   #12399
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I've just installed the RC Shox dual stage piston set in the rear of my RB6. it seems like the insert needs something to hold it in place. Does anyone have experience using these? Maybe you can post pics of your setup? I have the insert on top and the base on the bottom. I've watched the videos but it's a little hard to see.
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Old 09-06-2015, 04:57 PM   #12400
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Hi guys.
Does anybody know who makes gearcover for 3 gear gearbox?
Chris Mielke on facebook
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Old 09-06-2015, 05:22 PM   #12401
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Default 3 gear conversion for the rb6, rt6 and sc6

I have a facebook page and group on discussing my 3 gear conversion for the Kyosho line of cars.

go to facebook and search for "3 gear conversion for Kyosho"
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Kyosho Ultima RB6 & RB6.6 Car Thread-3-gear-above.jpg  
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Old 09-06-2015, 09:02 PM   #12402
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Originally Posted by Jaz406 View Post
I have a facebook page and group on discussing my 3 gear conversion for the Kyosho line of cars.

go to facebook and search for "3 gear conversion for Kyosho"
Looks good just ordered one .
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Old 09-08-2015, 08:19 AM   #12403
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Let's hear some steering servo suggestions from the group. I'm leaning towards ProTek 170S or Futaba S9352HV. Probably the Futaba as it seems like it will be faster with lower voltage. I'm running this with my Futaba 4PX system. Thanks!
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Old 09-08-2015, 09:48 AM   #12404
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Originally Posted by 13Maschine View Post
Let's hear some steering servo suggestions from the group. I'm leaning towards ProTek 170S or Futaba S9352HV. Probably the Futaba as it seems like it will be faster with lower voltage. I'm running this with my Futaba 4PX system. Thanks!
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Old 09-08-2015, 10:52 AM   #12405
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Originally Posted by Jaz406 View Post
I have a facebook page and group on discussing my 3 gear conversion for the Kyosho line of cars.

go to facebook and search for "3 gear conversion for Kyosho"
And to complete the conversion there will soon be this, in several colors. The end of the slipper adjustment will have a rubber over boot that slides on and keys to the groove.


Last edited by RCmayor; 09-08-2015 at 11:18 AM.
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