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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 09-06-2014, 12:33 PM   #10786
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Default Toe help please

Ok, so I have read all i can read about the rear toe inserts and how they adjust toe. I have a aluminum front/rear hanger and a plastic rear/rear hanger. There are 2 plastic rear/rear hangers and one is wider then the other. Im trying to figure out how much toe I have and can have using the aluminum rear/front hanger and the plastic rear/rear hanger? I have checked the petitrc site and there instructions are for aluminum/aluminum only..
Thanks for any help on this!!
john
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Old 09-06-2014, 03:59 PM   #10787
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I just ordered a RT6 and I can't find any info, can someone point me in the right direction?
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Old 09-06-2014, 05:22 PM   #10788
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Originally Posted by Eagl97 View Post
I just ordered a RT6 and I can't find any info, can someone point me in the right direction?
Here you go

http://www.rctech.net/forum/electric...yosho-rt6.html
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Old 09-06-2014, 05:27 PM   #10789
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Quote:
Originally Posted by SKIMAN View Post
Ok, so I have read all i can read about the rear toe inserts and how they adjust toe. I have a aluminum front/rear hanger and a plastic rear/rear hanger. There are 2 plastic rear/rear hangers and one is wider then the other. Im trying to figure out how much toe I have and can have using the aluminum rear/front hanger and the plastic rear/rear hanger? I have checked the petitrc site and there instructions are for aluminum/aluminum only..
Thanks for any help on this!!
john

Ok so there are 3 aluminum hangers.

UMW511/2 are the narrow aluminum holders and are C-in/C-in
UMW514/5 are the wider aluminum holders and are Out-C/Out-C

The RB6 kit comes with UM508C RF2/RR2, which are molded plastic and are Out-B/Out-B.

If you have a plastic holder you will see a label on it to tell you which part you have.

If you have UMW511 (the narrow inner aluminum holder) and an RF2 rear you will be at C-in/B-out which is 4.5 deg of toe. Way too much angle there.

There are no differences between like holders in aluminum or plastic. It's just durability.

So when it all comes down to it, Kyosho makes 3 different types of SET holders and 1 set of adjustable holders.
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Old 09-06-2014, 08:00 PM   #10790
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Default thx

thanks king..perfect
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Old 09-07-2014, 05:34 PM   #10791
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can you use the 17.8mm measurement on the rb5 arms as well? or are you only drilling the rb6 arms
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Old 09-08-2014, 03:05 PM   #10792
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I made a front battery stop that uses the wide holes in the front of the chassis.....let me know if you want one.

TAKE MY MONEY!!

How can i get one? Pretty please???

I'm assuming this uses the narrower rb6 battery strap and not the wider rb5 strap correct?
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Old 09-08-2014, 03:36 PM   #10793
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Yea the one that you would normally use works. I sent Jason a few pics after I put mine on, maybe he'll post one later.
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Old 09-08-2014, 04:20 PM   #10794
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I'll put a link up for you guys.....just upgraded my 3d printer yesterday!

I can now make em out of ABS not just PLA
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Old 09-08-2014, 07:46 PM   #10795
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I see the set up sheets with reverse indicated for the steering rack. Does this mean pointing the arrow the other way? What is the advantage of going reverse?
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Old 09-08-2014, 10:37 PM   #10796
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Originally Posted by helocat View Post
I see the set up sheets with reverse indicated for the steering rack. Does this mean pointing the arrow the other way? What is the advantage of going reverse?
It moves the ball stud 1mm towards the rear of the car. This allows you to run stock Ackerman position when you move the caster block back.

You can also achieve the same effect of the reverse steering rack if you use kyosho low mount ball studs (1mm lower ball stud).
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Old 09-08-2014, 10:57 PM   #10797
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Originally Posted by MikeXray View Post
can you use the 17.8mm measurement on the rb5 arms as well? or are you only drilling the rb6 arms
Yes you can... Drill another hole inside the 'loop' on the flat arms... A lot of people here in the UK have been doing this pretty soon after the RB6 came out.. Just make sure you use a spacer inside the 'loop' to add strength as you mount the shock out the back..
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Old 09-10-2014, 08:57 AM   #10798
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sorry to wake this thread up but there are good chances I will be purchasing an used RB6

do you have any recommendations about what I should look for on this car, any special option parts needed or mods or...?

maybe some parts which wear faster than others idk..

with which buggies does the RB6 share its wheels?

thanks in advance & hopefully I'll be able to find some tips here considering I've never raced a 2wd buggy on clay before
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Old 09-10-2014, 09:35 AM   #10799
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The RB6 uses standard Hex Wheel fitting.
Not much needs changing for option. Just run it out the Box and Enjoy.
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Old 09-10-2014, 10:55 AM   #10800
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Quote:
Originally Posted by Pulse_ View Post
sorry to wake this thread up but there are good chances I will be purchasing an used RB6

do you have any recommendations about what I should look for on this car, any special option parts needed or mods or...?

maybe some parts which wear faster than others idk..

with which buggies does the RB6 share its wheels?

thanks in advance & hopefully I'll be able to find some tips here considering I've never raced a 2wd buggy on clay before
+1 just picked up a used one as well. Never drove a 1/10 buggy.
Also whats the prefered esc/motor? Do you need a low profile servo?
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