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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 11-30-2014, 08:14 AM   #11176
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How does this buggy compare to others ?? And thanks for your help
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Old 11-30-2014, 08:34 PM   #11177
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Originally Posted by katoom007 View Post
How does this buggy compare to others ?? And thanks for your help
In terms of what? Steering? Traction? Parts cost/wear? Resale? Its a broad question so a bit more information will help us better give you the answers you're looking for
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Old 11-30-2014, 10:16 PM   #11178
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How does this buggy compare to others ?? And thanks for your help
In terms of quality it is top notch. Against other buggies it is a world champion platform and race proven vehicle. worth getting one imo
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Old 11-30-2014, 10:59 PM   #11179
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Originally Posted by katoom007 View Post
How does this buggy compare to others ?? And thanks for your help
The car is unbelievable, the only car that really works both MM and RM. However it is ridiculously expensive to own, 1.5"x 1.5" front bumper is 8 bucks and you go through those a lot, rear axles 15 bucks each, those are just a couple of examples. So if you're not worried a out the price of up keep then you'll love it.
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Old 12-01-2014, 11:35 AM   #11180
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How does this buggy compare to others ?? And thanks for your help
the quality is the best out there hands down,in terms of wear and breakage.. however,it needs a few things to help it bullet proof.. rear hinge pin holders,rear hubs,avid axles and the steering rack is debatable..i have the stock rack of one of my cars and it is still holding up fine.. the b5 is hard to beat because of price and handling,not sure what the b5 owners need to upgrade? i say get the rb6 ad upgrade as you go,run it stock 1st..
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Old 12-02-2014, 08:55 PM   #11181
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Default rear arms

sorry if this has already been asked, i couldn't find the answer..

is the drilled hole on the zack rogers set up for the stock arms, or the flat arms? if it's the flat, does anyone have the part number please?

(this could be a dumb question as my rb6 hasn't shown up yet)

thank you!
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Old 12-02-2014, 09:12 PM   #11182
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Those with the JC RB6 motor plate (honeycomb), can you please post the weight? Is it lighter than the Kyosho finned plate? Thanks,
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Old 12-02-2014, 09:18 PM   #11183
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Originally Posted by cactuskdogg View Post
sorry if this has already been asked, i couldn't find the answer..

is the drilled hole on the zack rogers set up for the stock arms, or the flat arms? if it's the flat, does anyone have the part number please?

(this could be a dumb question as my rb6 hasn't shown up yet)

thank you!
It's mostly for the stock RB6 rear arms, but I suppose you could do the mod to the "flat" arms too if you really wanted to.

um521 and um521-1 are the two flat arms that most have used, with most opting for the 521-1.
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Old 12-03-2014, 12:47 AM   #11184
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I have been wanting to do the mid motor conversion on my RTR RB6 which comes in the rear motor set up so I just want to verify that all I need is the mid motor rear tower. I plan on getting the LW chassis this week so I figure this will be the perfect opportunity to do the mid motor setup. I wish that I had just bought the kit at this point seeing I have dropped a load of money on upgrades but I wasn't real sure that I was going to be real thrilled with the car. So far I am loving it and am just trying to dial it in for my style.
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Old 12-03-2014, 02:59 AM   #11185
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Originally Posted by gillbily23 View Post
I have been wanting to do the mid motor conversion on my RTR RB6 which comes in the rear motor set up so I just want to verify that all I need is the mid motor rear tower. I plan on getting the LW chassis this week so I figure this will be the perfect opportunity to do the mid motor setup. I wish that I had just bought the kit at this point seeing I have dropped a load of money on upgrades but I wasn't real sure that I was going to be real thrilled with the car. So far I am loving it and am just trying to dial it in for my style.

You'll need,

Rear shock tower for MM
MM tranny case and waterfall brace (they come as a set)
Idler gear, shaft, and bearings
Rear MM bulkhead for the camber link
RR MM arm hanger
rear arm mount/bulkhead screws (3x20 if I remember right)

That should be it to do the conversion
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Old 12-03-2014, 03:13 AM   #11186
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Hey guys I've bought the V2 hubs 0* all Id like to know is which hole is the stock location. And/or which location is the most common people are running in mm. Thanks
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Old 12-03-2014, 01:10 PM   #11187
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Default CVD rebuild

I have been using the Avid axle and the kyosho dogbones for a while now. i have been replacing the dogbones when they wear out, but want to replace the pin and barrel that go between the axle and dogbone. I can't really find them for sale without buying kyosho axle, which I don't really want.

Will the MIP coupling fit?
http://www.amain.com/mip-c-cvd-coupl...screws/p192770

Is there any way to buy another coupling that will fit the avid axle?
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Old 12-03-2014, 02:01 PM   #11188
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Quote:
Originally Posted by Teufel Racing View Post
You'll need,

Rear shock tower for MM
MM tranny case and waterfall brace (they come as a set)
Idler gear, shaft, and bearings
Rear MM bulkhead for the camber link
RR MM arm hanger
rear arm mount/bulkhead screws (3x20 if I remember right)

That should be it to do the conversion
Thanks for the list! I am going to try and grab the parts today if the LHS has everything. Hopefully I will be running MM this weekend.
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Old 12-03-2014, 02:53 PM   #11189
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Originally Posted by gillbily23 View Post
Thanks for the list! I am going to try and grab the parts today if the LHS has everything. Hopefully I will be running MM this weekend.
Forgot to add to the list,

Rear MM wing mounts as those are different than the RM ones
Rear MM bumper

If you buy the rear arm hangers and bulkhead, you'll get two shims that go between the rear arm mount and bulkhead, one is .5mm and the other is 1mm, those are super important to keep track of, as they take up the space when you change antisquat settings so that the tranny is sitting like it needs to be. You'll also need the rear arm shims that go between the rear arm hanger and chassis from you RM car or was in the box for your car. .5mm and 1mm just like the ones for between the arm hanger and bulkhead.
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Old 12-03-2014, 03:48 PM   #11190
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Originally Posted by FallenAllDay View Post
Hey guys I've bought the V2 hubs 0* all Id like to know is which hole is the stock location. And/or which location is the most common people are running in mm. Thanks
2nd outer most is the stock hole, I run this hole 80% of the time and the outer most the other 20% in mid motor.

The longer link makes alittle more rear side bite and roll mostly in the middle of the corner, but you have less camber gain as the suspension compressers. I would test them both for yourself.
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