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Kyosho Ultima RB6 & RB6.6 Car Thread

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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(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 12-10-2015, 03:30 PM
  #12841  
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My sideways battery mod. If you just cut the plastic and don't touch the aluminum chassis it will space a shorty off the chassis 3mm. I wanted to try this first because shaving the angles off the chassis plus removing the side plate screw is going to allow for a LOT more flex. I wanted to try one thing at a time. The extra weight over the rear helped on our local hard slick dusty track. I drilled the chassis to put the battery brace in position for an inline battery all the way back almost against the motor in case I wanted to switch back real quick. I spaced the battery clamp and waterfall up off the chassis 3mm to use the stock hold down. More testing is required.

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Old 12-20-2015, 04:14 AM
  #12842  
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well since its been so dead on here im guessing someone found the magic setup and we cant make this dam car any better. no ones trying anything new or has any ideas? my cars good but coukd be bettter
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Old 12-20-2015, 08:27 AM
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Well, I just bought an RB6 on the FS forum yesterday so I don't even have my hands on it yet. I also just got an SC6 and am getting back into this hobby after a 10+ year hiatus. I am so pumped. My RB6 is a roller as of now, as I am trying to purchase an ESC and motor here in the forums as well. What turn motor would you all suggest that I put in this thing. I will be mainly backyard racing, on manicured tracks, one is rather small and the other is 1/8 scale sized. And I have never owned a 2wd buggy before either, although at about 8 or 9yrs old my dad's neighbor had a "nice/aka faster than anything I had ever driven" radio shack 2wd buggy that jump started my passion for this hobby. I am really looking forward to getting this thing running for some January racing for my birthday. Any newbie advice is welcomed, and I have yet to have time to read thru this 850+ page although I have gotten started. Thanks in advance.
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Old 12-21-2015, 03:21 AM
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well i hope u have fun with it id probably say just start with a 10.5 motor as most back yard tracks are blown out or atleast lomey and u will be looking for traction. you may want to run rear motor setup as well. i never seen your tracks bt those are my thoughts. also get the rear aluminum rear suspension hangers and fill the empty ball stud holes in with set screws.around front and rear camber link position. just helps strengthen the plastic
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Old 12-21-2015, 06:04 AM
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Originally Posted by oPAULo View Post
My sideways battery mod. If you just cut the plastic and don't touch the aluminum chassis it will space a shorty off the chassis 3mm. I wanted to try this first because shaving the angles off the chassis plus removing the side plate screw is going to allow for a LOT more flex. I wanted to try one thing at a time. The extra weight over the rear helped on our local hard slick dusty track. I drilled the chassis to put the battery brace in position for an inline battery all the way back almost against the motor in case I wanted to switch back real quick. I spaced the battery clamp and waterfall up off the chassis 3mm to use the stock hold down. More testing is required.



What wing is that sir? And does it hold up well?
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Old 12-21-2015, 06:19 AM
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Originally Posted by Motorman007 View Post
What wing is that sir? And does it hold up well?
Pro Line Trifecta.

It holds up like no other wing. SUPER beefy.
Yes, it is thicker and it's hard to get the pins in the stock mount with the stock wing washers but it fits on there just fine.
The extra thickness also make it heavier. That's a small price to pay for a wing that can take a beating.
I'll weigh it tonight and see how much heavier.
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Old 12-21-2015, 06:55 AM
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Originally Posted by oPAULo View Post
Pro Line Trifecta.

It holds up like no other wing. SUPER beefy.
Yes, it is thicker and it's hard to get the pins in the stock mount with the stock wing washers but it fits on there just fine.
The extra thickness also make it heavier. That's a small price to pay for a wing that can take a beating.
I'll weigh it tonight and see how much heavier.
The pro-line is definitely beefy if you're looking for a traditional wing. It will last quiet a bit longer than most of the other brands I've tested. As well I had a spare sworkz in my box I tested last night, which also fits if you're wanting a black wing. Bonus, it's plastic, not lexan.

http://www.amainhobbies.com/rc-cars-...800abk/p267310
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Old 12-21-2015, 06:59 AM
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Originally Posted by RokleM View Post
The pro-line is definitely beefy if you're looking for a traditional wing. It will last quiet a bit longer than most of the other brands I've tested. As well I had a spare sworkz in my box I tested last night, which also fits if you're wanting a black wing. Bonus, it's plastic, not lexan.

http://www.amainhobbies.com/rc-cars-...800abk/p267310
so you like the sworkz PLASTIC WING?
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Old 12-21-2015, 07:03 AM
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Originally Posted by RokleM View Post
The pro-line is definitely beefy if you're looking for a traditional wing. It will last quiet a bit longer than most of the other brands I've tested. As well I had a spare sworkz in my box I tested last night, which also fits if you're wanting a black wing. Bonus, it's plastic, not lexan.

http://www.amainhobbies.com/rc-cars-...800abk/p267310
Wow I like that too! How wide is it?

My son goes through wings like oreo cookies....
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Old 12-21-2015, 07:10 AM
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Originally Posted by Motorman007 View Post
so you like the sworkz PLASTIC WING?
To be determined. It's been many years since I raced 2wd indoors or 1/10th, so just getting back into it. I raced the RB6 the first time yesterday, so tons of changes and testing. Rear end is very loose in acceleration, so need to lock that down. I tested three wings and didn't notice a ton of difference between them. The sworkz being plastic is thick, flexible, but does weight a bit more than any lexan wing. It has the bonus of super flex so technically it might last a lot longer than lexan, but time will tell. Hope to do more testing in the coming weeks with various setups including stock, pro-line, etc.
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Old 12-21-2015, 07:10 AM
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Yeah, thanks for that plastic wing info. I think I'll go ahead and order one when I order my receiver today. Might as well because lord knows 10 years off the track and I'm gonna burn through some wings fast lol.
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Old 12-21-2015, 07:11 AM
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Originally Posted by oPAULo View Post
Wow I like that too! How wide is it?

My son goes through wings like oreo cookies....
It is not as wide as some of the larger wings. I will take a picture tonight.
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Old 12-21-2015, 08:52 AM
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Just recently got the Kyosho SC6 and raced it yesterday at my local track.

Now thinking about running 2wd 17.5 stock class as well. Anybody here could point out what the differences are between 2015 RB6 and the older version?
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Old 12-21-2015, 09:18 AM
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Originally Posted by Tpg racer View Post
Just recently got the Kyosho SC6 and raced it yesterday at my local track.

Now thinking about running 2wd 17.5 stock class as well. Anybody here could point out what the differences are between 2015 RB6 and the older version?

The updated car comes with the newest rear wing, updated rear arms and gold rear springs.

Dayton
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Old 12-21-2015, 09:22 AM
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Originally Posted by Tpg racer View Post
Just recently got the Kyosho SC6 and raced it yesterday at my local track.

Now thinking about running 2wd 17.5 stock class as well. Anybody here could point out what the differences are between 2015 RB6 and the older version?
Not much, I think the chassis has additional holes, different springs.. I think that's it.. Lol.. After the worlds in 2013,we all thought Kyosho would have a le wc edition, but never happened.. Not really much to ad except, rear hubs and aluminum steering rack and maybe the brass pieces for tuning.. I think that's all tebo ran as far as hop ups.. Amain gives a description of the new features
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