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Kyosho Ultima RB6 & RB6.6 Car Thread

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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 ForumsThread 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 08-03-2012, 08:23 AM
  #211  
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Like this?

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 08-03-2012, 08:49 AM
  #212  
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I've always liked the bottom bleed (Losi style) better than the top bleed. The Kyosho shocks mix the best of all shock designs, IMO. Tamiya cylinder and piston quality, Losi bottom cartridge and bleed, upper rebound bladder, big bore, and high quality springs and x-rings (though rumor has it that the new Tamiya x-rings are even better). The only things I could think to add are advanced shaft coating (though it doesn't seem to need it) and bleeder top caps for even more tuning options.
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Old 08-03-2012, 08:58 AM
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I have a question...

What is the advantage in having the front shocks mounted on the back of the tower as opposed to the front of the tower as with the old RB5?
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Old 08-03-2012, 09:12 AM
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What is this infamous T Plate you folks keep referring to? What's it do, why is it so bad?
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Old 08-03-2012, 09:16 AM
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Originally Posted by Orion_2kTC View Post
What is this infamous T Plate you folks keep referring to? What's it do, why is it so bad?
Apparently a few people had issues with the T-plates breaking. I think I broke 2 in nearly 5 years and it was because I hit something quite hard.
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Old 08-03-2012, 09:20 AM
  #216  
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What does it improve over stock t-plate?
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Old 08-03-2012, 10:57 AM
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Originally Posted by big chris View Post
Because...Putting it in the rear has always been forbidden, hence we want to do that.
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Old 08-03-2012, 12:58 PM
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Originally Posted by CanyonCarverR1 View Post
Did he run the motor forward or back?
Rear motor. As has been said, mid motor is intended primarily for super high grip carpet/turf tracks that are popular in Europe (better for bad weather and can be built indoors). This allows Kyosho to stay competitive in those markets where Schumacher, Losi and Durango currently dominate. I'm sure some will run it on high-bite clay but rear motor will remain the preference for dirt.

Originally Posted by Rfury View Post
Did he mount the ESC on the tray or flat on the chassis behind the battery? It will be great to see pictures.
There isn't an ESC tray. It sits on the chassis right behind the battery, which puts the weight as low as possible, lowering the CG. He chose to mount his Rx in the traditional position but it looks like they suggest putting it on the battery strap as an option. Depends on the size of your Rx. The KO's that Tebo runs are really tiny. The Kyosho Rx's seen in the PR photos are probably too big to fit on the side.

Originally Posted by Rfury View Post
I have a question...

What is the advantage in having the front shocks mounted on the back of the tower as opposed to the front of the tower as with the old RB5?
I'm not sure if there's a geometry benefit but I do know that mounting them behind the tower allows you to protect your suoer-expensive, annodized shocks with a cheap shock tower.

I'd much rather have the tower take the hit than my shocks. Not to mention the fact that a hit could move your preload collars. This is how the B4 does it.

Originally Posted by Orion_2kTC View Post
What is this infamous T Plate you folks keep referring to? What's it do, why is it so bad?
The plastic T-plate, found on all of the current Gen K race kits is considered one of the most likely parts to break. I've only broken one, which was on my SC-R. The gearbox appeared to have punched through the t-plate somehow. The new car gets rid of this part and just extends the alu chassis all the way back.
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Old 08-03-2012, 01:07 PM
  #219  
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I see now! That is fricking trick! Stupid depth perception! I run Airtronics and my receivers are bigger than the KO but not by much. I might be able to fit it in the side as well.

When I first looked at the PR photos it seemed like the ESC sat above the battery like the 22(hated that btw when I had one) but it is actually behind it on the chassis.
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Old 08-03-2012, 06:22 PM
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oh well

Last edited by Posvar; 08-06-2012 at 07:39 AM.
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Old 08-03-2012, 06:44 PM
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Originally Posted by Rfury View Post
I have a question...

What is the advantage in having the front shocks mounted on the back of the tower as opposed to the front of the tower as with the old RB5?
In the case of this car, I think it's to clear space to run the reverse bell crank setup.
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Old 08-03-2012, 07:08 PM
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i want one of these lol, kyosho has been my go to brand just because my first rc was an ultima rb gp lol.
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Old 08-03-2012, 07:53 PM
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From liverc.com








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Old 08-03-2012, 08:13 PM
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Originally Posted by lbckevin View Post
From liverc.com








Awesome pics Kevin, I wonder if thats a Rt6 in the background
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Old 08-03-2012, 09:51 PM
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Default RT6

I sure hope there is a RT6 is on the way.. Please Please

Last edited by GTempleton; 08-03-2012 at 09:52 PM. Reason: Sp
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