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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 08-28-2013, 11:26 PM   #8011
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buggy felt great tonight @ oc/rc second place in stock buggy in it's first race:

http://www.liverc.com/view_result_fi...y_(A_Main).xml
You were moving to hang right behind Jason and stay in front of Daniel. Great job!

Quick question, what's your buggy weigh?
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Old 08-29-2013, 12:00 AM   #8012
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You were moving to hang right behind Jason and stay in front of Daniel. Great job!

Quick question, what's your buggy weigh?
thanks and honestly I have no idea.. and it's a SP Reventon Pro...works great
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Old 08-29-2013, 04:07 AM   #8013
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thanks and honestly I have no idea.. and it's a SP Reventon Pro...works great
What set up are you running?
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Old 08-29-2013, 06:21 AM   #8014
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Default Buying RB6

Hey guys I'm buying an RB6 today and was wondering what else I should order with the kit springs etc.. I run on an indoor med grip ..Thanks any help would be appres..
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Old 08-29-2013, 06:33 AM   #8015
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Hey guys I'm buying an RB6 today and was wondering what else I should order with the kit springs etc.. I run on an indoor med grip ..Thanks any help would be appres..
Maybe some gold rear springs, kit pinks are good for front. I would also suggest looking at Exotec upgrades although not mandatory
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Old 08-29-2013, 07:04 AM   #8016
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What set up are you running?
my own currently and it isn't much haven't really started dialing the car in

I run long front camber links, med. length rear camber links, losi #54 pistons all the way around w/27.5 and 25 wt oils, wide hanger, middle hole on the tower in the front and third hole in on rear tower outside hole on both front and rear a-arms, 23/24mm ride height, -1.5 camber all the way around. The car is pretty twitchy with tons of steering. I am going to work on trying to lock the rear in a bit more though
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Old 08-29-2013, 07:15 AM   #8017
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Default New RB6

Does the narrow rear susp arm holders give rear end more grip
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Old 08-29-2013, 07:25 AM   #8018
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Originally Posted by jk3 View Post
Hey guys I'm buying an RB6 today and was wondering what else I should order with the kit springs etc.. I run on an indoor med grip ..Thanks any help would be appres..
Here's what's on my car but you absolutely do not need all this stuff for the car to be good. I've changed stuff slowly, out of boredom. The first things I would buy would be Gold rear spring, Aluminum Steering Rack, and the new aluminum adjustable rear hangers.
  • Avid Shock & Turnbuckle Tool (AV1040)
  • Avid Slipper and Avid Top Shaft (AV1020-STK + AV1020-TOP-KYO), note: I run 76t in mod
  • Avid Kyosho HD Long Rear Axle (AV1041-AXLE)
  • Lunsford "Punisher" Kyosho Ultima RB6 Titanium Turnbuckle Kit (6) (LNS2687)
  • Avid Pistons (1.7x2 : AV1030-2x1.7-F, 1.6x2 : AV1030-2x1.6-F, 1.3x4 : AV1030-4x1.3-F, 1.5x2+1.1x2 : AV1031-1.5-1.1-F), note: if you run Avid pistons you will want some shims to shim out up and down play as a Kyosho piston is a little thicker. .1-.2mm. GHEA is direct fit but I typically don't like conical pistons so I have not tried them.
  • Exotek or Kyosho Alum Steering Rack (1258BLK, KYOUMW701)
  • Exotek Rear Camber Block (1279BLK)
  • Kyosho RB5 Front Hexes and Axle
  • Kyosho RB5 Rear Arms (KYOUM521-1), note: you need qty 2 to make a pair.
  • Kyosho V2 Aluminum Rear Hub Set (0) RB6/ZX/RT/SC (KYOUMW704-0)
  • Kyosho Big Bore Blank Shock Piston Set (2) (KYOW5303-08), note: you need qty of 2 to make a set of 4.
  • Kyosho Aluminum Adjustable Rear Hangers
    - UMW705+UMW706 for rear motor
    - UMW705+UMW707 for mid motor
  • Kyosho Derlin Suspension Bushings (KYOLAW32)
  • Rear Springs White KYOXGS012 Gold KYOXGS013

What's the name of your local indoor track?
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Last edited by jkirkwood; 08-29-2013 at 10:12 AM.
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Old 08-29-2013, 09:23 AM   #8019
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code3 rc Ive been running the losi 22 dont like it and dont really want to give the 2.0 a try I would rather just go with the RB6... I still have 2 orig ultimas that I got when they came out in late 80's... but anyway I was just wanting help with this car cause nobody at my local track has one I mainly just want to know what I need when I get this car to start out,just like I heard alot about the rear gold springs
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Old 08-29-2013, 10:06 AM   #8020
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code3 rc Ive been running the losi 22 dont like it and dont really want to give the 2.0 a try I would rather just go with the RB6... I still have 2 orig ultimas that I got when they came out in late 80's... but anyway I was just wanting help with this car cause nobody at my local track has one I mainly just want to know what I need when I get this car to start out,just like I heard alot about the rear gold springs
I didin't upgrade because I couldn't afford to but the suspension hangers in aluminum and the steering rack as well for increased durability. My car is all stock for now but I will go to these parts in the future
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Old 08-29-2013, 10:57 AM   #8021
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Honestly I think the only thing you need is the Kyosho steering rack and some .5* hubs. If you search you can find plastic hubs in .5*.
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Old 08-29-2013, 12:09 PM   #8022
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When you say kyosho steering rack is it an sliding rack sim. to losi...and it comes with a bell crank sys. correct me if Im wrong I just want to know what you mean when you say rack and do you mean .5 deg rear hubs
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Old 08-29-2013, 12:33 PM   #8023
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When you say kyosho steering rack is it an sliding rack sim. to losi...and it comes with a bell crank sys. correct me if Im wrong I just want to know what you mean when you say rack and do you mean .5 deg rear hubs
Its stock rack, just in aluminum, not plastic, the stock one is a little fragile, not bad, but most replace it so they don't have to worry about it.

Yes .5dg rear hubs, I tend to run them everywhere, even on high grip.
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Old 08-29-2013, 12:35 PM   #8024
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Are those .5 toe
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Old 08-29-2013, 03:56 PM   #8025
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I have run the car since October last year in mod and yet to break anything including the plastic rack.

I run, gold rear spring, aluminum rear suspension holders, white bushing for said holders. For spares keep a $6 plastic steering rack and plastic rear hubs.

Enjoy your car.
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