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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 11-28-2012, 05:26 PM   #2986
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I think there was a Go-Pro out on the track that night for the main event, but I have no idea if the guy is going to make/post the vid anywhere. ill have to see.
race video a very good tool to see where you can improve, and not to mention it's just fun to watch
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Old 11-28-2012, 05:31 PM   #2987
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Is there anybody that has ran their car at multiple tracks without drastically changing the setup. I've been thinking about getting one and plan on doing the jbrl next year, wobt have a lot of time to get the setup dialed into each and every track. I can throw my B4 down pretty much anywhere without changing much and it's good. Thanks!
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Old 11-28-2012, 05:32 PM   #2988
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Default My Electrics setup for MM

you can see i used the servo wire Chanel
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-023.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-025.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-026.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-029.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-030.jpg  

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Old 11-28-2012, 06:02 PM   #2989
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Quote:
Originally Posted by Cpt.America View Post
Now all we need are swing shafts and axles! The pins in the swingshafts is where we need a boost to durability and longevity... the Kyosho diff is already flawless. Speaking of which, if you made the swing shaft pins REPLACIBLE... (the pins that spin the outdrives), I bet you would sell a set for every kyosho car out there.
Oh those are coming ... We are testing them right now and our new diff has better quality outdrives that will wear less and are less expensive
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Old 11-28-2012, 06:30 PM   #2990
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Oh those are coming ... We are testing them right now and our new diff has better quality outdrives that will wear less and are less expensive
Dialed!
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Old 11-28-2012, 06:44 PM   #2991
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Originally Posted by MIP MATT View Post
Oh those are coming ... We are testing them right now and our new diff has better quality outdrives that will wear less and are less expensive
The K outdrives are 12 bucks for male and female. I will say that if the outdrives and shafts wear less, I think I would buy them.
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Old 11-28-2012, 07:46 PM   #2992
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Definitely interested on C-CVD's for the 6.

Diff looks good for sure but it could make sense to run the whole thing altogether (cvd and diff).

Anyway, awesome to see some MIP products for this car !
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Old 11-28-2012, 09:53 PM   #2993
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Hi everyone,

So far my RB6 has been amazing after 2 days of running non stop with some heavy crashes, I haven't broke anything yet. I bent one of the front turnbuckles and replaced it with the Lunsford titanium 1-5/8 kit part number 1066, it's a direct fit same size and length.



Thanks,
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Old 11-28-2012, 10:04 PM   #2994
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Has anyone played with running more caster than the 0s? My car has more initial steering than I would like.
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Old 11-28-2012, 10:40 PM   #2995
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Alot of guys are switching to the 4s
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Old 11-28-2012, 11:04 PM   #2996
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Alot of guys are switching to the 4s
What major difference do you notice when switching to the 4s?Our local fast guy said he switched to the 4 to tame his steering. Any can chime in the advantages and disadvantages switching to the 4
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Old 11-28-2012, 11:17 PM   #2997
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Has anyone played with running more caster than the 0s? My car has more initial steering than I would like.
I am currently running 30/0 and the car is amazing. It tamed out the infield steering just a tad, and made it even more of a beast in the sweeper. I wanted to see what the extra kick-up would feel like. I have tried 25/0, 25/4, and 30/0... so far i like 30/0 the best.
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Old 11-28-2012, 11:28 PM   #2998
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I am currently running 30/0 and the car is amazing. It tamed out the infield steering just a tad, and made it even more of a beast in the sweeper. I wanted to see what the extra kick-up would feel like. I have tried 25/0, 25/4, and 30/0... so far i like 30/0 the best.
I hadn't even thought about trying more kick up, good idea. I believe the kit has the option of running 2 degrees of caster, have you tried that? The car is really damn good for me right now, it's just too aggressive when the track dries out. Normally my home track is a damp clay with a solid medium traction level. Hot tires are pink gigabytes or m4 hole shots and soft or super soft rebars at least in my group.
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Old 11-29-2012, 12:24 AM   #2999
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Just ran the car tonight in an actual race and bam the car was awesome. I am really stoked to get the AVID pistons and try those out, hopefully it will calm down the rear end a little bit. My only complaint was my seemed to be a little bouncy, hopefully the next outing I will be able to tame it down a little.
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Old 11-29-2012, 12:26 AM   #3000
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I should have my avid pistons Friday. My only question is which do I try first I'm thinking the 55s for the rb6
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