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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 08-12-2016, 01:38 AM
  #13591  
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Tobemeister thanks for the help.
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Old 08-12-2016, 07:09 AM
  #13592  
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Originally Posted by BiLL77 View Post
What are the differences from 2015 rb6 and rb6.6 besides trans chassis and body?
The springs and shock pistons too if I remember correctly.

You can get most of the parts for the 6.6 except for the chassis. At least the first shipment here to the U.S. had the other parts.

The new parts are backwards compatible and no additional work is required to install them unless you want to run the laydown transmission. Then you have to add two holes to the 6 chassis.
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Old 08-12-2016, 07:22 AM
  #13593  
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^^What he said.

Also, Rear Arms included have the extra hole UM713.

Most of the bits are listed here: http://www.kyoshoamerica.com/Replace...ts_c_1537.html
and here:
http://www.kyoshoamerica.com/Option-parts_c_1538.html
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Old 08-12-2016, 12:48 PM
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Has anyone replaced the drive pins on their drive shafts? Either with the HUDY or Mugen tool, or perhaps a vise, or worse pliers? I have the mugen tool, and I'm wondering which pins I should pick up. I don't want to cut my own, so I'd prefer pre cut. Thanks for the input! happy Friday all
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Old 08-12-2016, 10:22 PM
  #13595  
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Originally Posted by Twisterdave View Post
Can we just use the standard chassis protector for the rb6.6?
I used a Scheele one from a SC6 and trimmed it to fit.
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Old 08-13-2016, 10:05 AM
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Originally Posted by 13Maschine View Post
Has anyone replaced the drive pins on their drive shafts? Either with the HUDY or Mugen tool, or perhaps a vise, or worse pliers? I have the mugen tool, and I'm wondering which pins I should pick up. I don't want to cut my own, so I'd prefer pre cut. Thanks for the input! happy Friday all
I think those are 1/8th scale tools, I believe the pins are too small on a 1/10th, but worth checking. If someone can give me the pin dimensions on what you're talking about I can compare.
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Old 08-13-2016, 12:43 PM
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Originally Posted by Kraig View Post
The springs and shock pistons too if I remember correctly.

You can get most of the parts for the 6.6 except for the chassis. At least the first shipment here to the U.S. had the other parts.

The new parts are backwards compatible and no additional work is required to install them unless you want to run the laydown transmission. Then you have to add two holes to the 6 chassis.
I was able to order the chassis off of kyoshoamerica this morning. We'll see if i get any emails to the contrary from them
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Old 08-13-2016, 09:08 PM
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Originally Posted by RokleM View Post
I think those are 1/8th scale tools, I believe the pins are too small on a 1/10th, but worth checking. If someone can give me the pin dimensions on what you're talking about I can compare.
Xray recommend the HUDY pin tool for their 10th scale cars like the XB2. Pin size on the Kyosho seems to be 2x10mm.
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Old 08-14-2016, 01:42 AM
  #13599  
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Originally Posted by 13Maschine View Post
Xray recommend the HUDY pin tool for their 10th scale cars like the XB2. Pin size on the Kyosho seems to be 2x10mm.
I've used a Hudy tool a friend had and it works, he modded his tool a little for the smaller pins and broke it. There was just enough to get the old pin pushed out enough to get a new pin to line up. If you use that tool with a vice, you can control things better when pushing out/in pins. I use it with a small hammer to tap them out/in.
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Old 08-14-2016, 11:19 PM
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Hello my kyosho friends,

I am looking to convert my rb6 to a laydown transmission. With the rb6.6 out, can i use those part and it will be an exact fit? Also can you help me with all the parts I need.
I have an idea but want to be sure. Thank you in advance.
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Old 08-15-2016, 12:34 AM
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Originally Posted by IRM616 View Post
Hello my kyosho friends,

I am looking to convert my rb6 to a laydown transmission. With the rb6.6 out, can i use those part and it will be an exact fit? Also can you help me with all the parts I need.
I have an idea but want to be sure. Thank you in advance.
Lay down tranny cases, lay down idler gear, lay down motor plate and gear cover, rear lay down bulkhead (if you plan to run the shocks on the front of the rear arms). That's pretty much the parts you need. Then you'll have to drill two holes in the regular RB6 chassis for the more forward waterfall brace. Then likely have to shave/grind/mill the chassis sides down more forward if you plan to run the battery sideways, along with modding the sideguards for battery clearance more forward as well. Lastly, you'll have to mod the rear front arm mount to fit under the lay down tranny cases, unless you get one f the new ones that's already milled down for clearance.

That should be all you need/need to do
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Old 08-15-2016, 03:07 AM
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You have to drill 4 holes. 2 for the waterfall and 2 for the forward screws in the laydown case. The laydown case has 4 screws through the chassis.
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Old 08-19-2016, 04:10 PM
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6.6 Chassis has been available on KyoshoAmerica for a week now but no where else in US. hope losi parts house gets some soon. Wondering how much they will be there.
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Old 08-19-2016, 04:17 PM
  #13604  
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Check eBay. I picked one up today for far less than retail price.
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Old 08-19-2016, 05:26 PM
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Kraig what are you running at trackside. 6-6.6? And what trans?
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