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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
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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(0į/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 10-07-2013, 12:19 AM   #8371
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Default MIP Puck's

Sorry, should have mentioned that i was talking about MIP's alum puck kits with alumium outdrives complete kit for kyosho SC and can work on RT5. Great kit everything is included.
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Old 10-08-2013, 12:06 AM   #8372
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Quote:
Originally Posted by joecool View Post
This shim must be changed to match the anti squat shim you are running. If you run the stock thin anti squat shim use the thin spacer between the block and tower. If you run no anti squat shim you then need the thick spacer between the block and the tower. It just keeps the shock tower height the same with the setup you choose.
What if you never put the shim in between the tower lol
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Old 10-08-2013, 08:36 PM   #8373
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Hey guy I just picked up an rb6 and I was wondering if you guys had any tips.
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Old 10-08-2013, 08:49 PM   #8374
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Quote:
Originally Posted by Rcdudes3475 View Post
Hey guy I just picked up an rb6 and I was wondering if you guys had any tips.
Get the flat arms (um521-1) and the short shock ends in the rear. Best thing you can do to the car in mid or rear motor, period. Screws are "mid grade" at best, and the plastic is kinda "sticky", so take care and use good tools as it is very easy to strip those 2mm heads.

I really like the 4x#55 pistons -- you can get losis or drill your own by hand.

I would then start with either a rear or mid motor applicable Tebo setup from http://www.petitrc.com/setup/kyosho/...UltimaRB6.html .

Adjust tires, camber, and shock oils for your track and you should be golden. If you're on reliable good trip that doesn't get slick, mid motor is a good option. Start with -1 camber all around unless it's super stuck, then consider -2. If you're on a track that gets slick, rear motor is my preference. Same suggestions on initial camber. Adjust shock oil to temp, taking care to use losi oils and maintaining the front to rear difference that Tebo ran initially, and then tuning as you see fit.

For example, I run his nats setup with #55s, pink/gold springs, 35 losi front, 27.5 rear, -1 camber all around. It's hooked on medium/low grip indoor top soil.

Jared's setups are always a great starting point and are always really close with perhaps shock oil or camber needing change, and of course, correct tires for the track.

Wayne
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Old 10-08-2013, 09:17 PM   #8375
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Here's a link to some pics of the pair of full option Yaiba cars I mentioned a few days back. Tomorrow I get to deliver them to my buddy and help him break them in on the track. Nice build overall and thanks to you guys for the various tips I read in these pages. Yaiba Racing Forum
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Old 10-08-2013, 09:33 PM   #8376
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My checkbook just gave birth to a 1k RB6
Father is doing well, in fact he cut three seconds of his best lap...
Mother is headed to her attorney for a divorce. But by fact the best car I have ever driven
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Old 10-08-2013, 09:39 PM   #8377
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Quote:
Originally Posted by CHUCKDOG View Post
Sorry, should have mentioned that i was talking about MIP's alum puck kits with alumium outdrives complete kit for kyosho SC and can work on RT5. Great kit everything is included.
Would you please measure the width of the flat sides of the pucks? Or the gap in the pucks outdrives? I am planning to put touring car blades on my MIP diff and so I would just need the pucks outdrives if the width is correct!
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Old 10-08-2013, 09:57 PM   #8378
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Quote:
Originally Posted by Jonny5 View Post
Here's a link to some pics of the pair of full option Yaiba cars I mentioned a few days back. Tomorrow I get to deliver them to my buddy and help him break them in on the track. Nice build overall and thanks to you guys for the various tips I read in these pages. Yaiba Racing Forum
interesting way of running the 521-1 arms in rear motor. arms look backwards. how does this work?
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Old 10-08-2013, 10:13 PM   #8379
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Quote:
Originally Posted by cnelson3 View Post
interesting way of running the 521-1 arms in rear motor. arms look backwards. how does this work?
they basically sweep the axle forward to create a different weight distribution.
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Old 10-08-2013, 10:23 PM   #8380
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Originally Posted by cnelson3 View Post
interesting way of running the 521-1 arms in rear motor. arms look backwards. how does this work?
Well now I'm glad I posted pics. I looked at pics of Tebo's car from CRCRC and really couldn't see it clearly. Guess I should have checked his Reedy Race setup as it clearly showed the arms the opposite of how I mounted them. First Kyosho build. Looks like I have a little more to do tomorrow.

By the way, your buggy looked really good on Friday. I was shocked to see how well the MM cars are running up there. We'll see you up there soon!

Quote:
Originally Posted by Jason Snyder View Post
they basically sweep the axle forward to create a different weight distribution.
Thanks for the attempted bail out buddy.
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Old 10-08-2013, 10:46 PM   #8381
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Originally Posted by SAMCRO View Post
Does anybody know when the RT6 will be available for purchase??
one week from today Im supposed to get mine.
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Old 10-09-2013, 02:07 AM   #8382
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Anyone try this battery from Reedy? Reedy WolfPack 2S Hard Case Li-Poly Shorty Battery Pack 25C. Sorry I can't post URL.

The closes to Team Orion shorty which is impossible to find now.
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Old 10-09-2013, 04:46 AM   #8383
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I run the GHEA 4x1.3mm pistons in my rear mount and really like them and the way the car felt is so much better.

I have to get some more for my mid mount carpet RB6 but was thinking of trying AVID pistons but was wondering if they need shimming at all as I read that the #55ís Losi ones do?
Mind you the money between AVID and GHEA isnít much

Looks like I will be starting again with trying kit arm V flat arms as I never thought of running the shorter shock ends until tonight.
This will now allow me the adjustment I needed to get my ride height down for the place I race on carpet
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Last edited by KalEl63; 10-09-2013 at 05:02 AM.
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Old 10-09-2013, 06:24 AM   #8384
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What is the advantage of the 521 rear arms?
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Old 10-09-2013, 06:28 AM   #8385
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Quote:
Originally Posted by Jonny5 View Post
Well now I'm glad I posted pics. I looked at pics of Tebo's car from CRCRC and really couldn't see it clearly. Guess I should have checked his Reedy Race setup as it clearly showed the arms the opposite of how I mounted them. First Kyosho build. Looks like I have a little more to do tomorrow.

By the way, your buggy looked really good on Friday. I was shocked to see how well the MM cars are running up there. We'll see you up there soon!



Thanks for the attempted bail out buddy.
They run them that way in Europe in some places.
Better in slicker/low grip.
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