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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
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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 11-12-2012, 06:38 PM   #2536
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Has anybody tryed aka wheels or avid on the rear the axel hole seems smaller on the rb6 than on other cars like losi and ae . can i swicth the axle stub and put a bigger one that fit either losi or ae
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Old 11-12-2012, 06:43 PM   #2537
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Quote:
Originally Posted by hollywood7 View Post
Has anybody tryed aka wheels or avid on the rear the axel hole seems smaller on the rb6 than on other cars like losi and ae . can i swicth the axle stub and put a bigger one that fit either losi or ae
The axle hole on the wheel seems smaller? If so, just open it up a little bit with a reamer or xacto if need be. No need to change axles. In fact, I ream all of my non-kyosho wheels to make the holes bigger.

If the hole in the wheel is to big I wouldn't worry about it because it will become centered on the hex instead.
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Old 11-12-2012, 06:53 PM   #2538
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I ment the the oppiset the wheels have to big of a hole
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Old 11-12-2012, 08:30 PM   #2539
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Hey buddy I am running his setup but i just changed a few things and its really good.
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Old 11-12-2012, 10:18 PM   #2540
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Triad notification list has started:
http://avidrc.com/product/5/accesori...ccesories.html
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Old 11-12-2012, 10:56 PM   #2541
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.
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Kyosho Rb6 | Orion R10 Pro | SchuurSpeed 17.5 | Savox 1257

Kyosho SC-R SP | Orion R10 Pro | SchuurSpeed 17.5 | Savox 1258

Last edited by BranVita; 11-13-2012 at 06:12 AM. Reason: question answered
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Old 11-13-2012, 05:16 AM   #2542
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it looks like $48 + shipping . i have two vehicles i would need them for RB6 and scr sp
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Old 11-13-2012, 05:20 AM   #2543
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I have a b4.1 kit...jusy need the shaft!
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Old 11-13-2012, 06:26 AM   #2544
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Originally Posted by kdub View Post
Triad notification list has started:
http://avidrc.com/product/5/accesori...ccesories.html
Any idea when we may be able to order them?
(on the web page it says "out of stock")

Thanks.


Allen
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Old 11-13-2012, 06:32 AM   #2545
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That page is just letting people know it is coming very soon.
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Old 11-13-2012, 07:04 AM   #2546
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Nice race. I notice around 6.10 one of the driver causes the bug in front of him to turtle and he didn't even have the courtesy to stop and let the guy pass him.

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Originally Posted by Rasheed View Post
Built my RB6, first time it touched the track was on the practice day for the first race in the big regional series. I had heard from others that the car had a LOT of steering and I like a mellower setup. Track was high traction clay with several sections where traction rolling was a problem, and only 1 big jump. I used the setup suggested in the manual but made a few changes.

4 degree inserts in front hubs (with bulkhead set on 25 for a total of 29 degrees)
white front spring
white rear spring
2 internal limiters in rear shocks.
21mm rear ride height
23mm front ride height
1mm under all upright ballstuds

car was really good, steering was kind of mellow and the rear stayed planted. Against this crowd I would usually be struggling to even make the A. This race I qualified 5th and finished 4th overall. The rear ride height was really low but it seemed to help avoid traction rolls in the sweeper. Here is a video of the A2 main, I start 5th with the orange, yellow, and green body...

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 11-13-2012, 07:22 AM   #2547
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The car doesn't seem to much, if any, front droop (built with no limiters, medium shock eyelets) - Is anyone using the longer shock eyelets or unscrewing them to gain a bit more front droop, or finding that more droop is not needed?

I've yet to get the car out on an actual track, so this is just observation on the bench and tooling around the driveway at this point.
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Old 11-13-2012, 07:32 AM   #2548
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Quote:
Originally Posted by negatv1 View Post
The car doesn't seem to much, if any, front droop (built with no limiters, medium shock eyelets) - Is anyone using the longer shock eyelets or unscrewing them to gain a bit more front droop, or finding that more droop is not needed?

I've yet to get the car out on an actual track, so this is just observation on the bench and tooling around the driveway at this point.
i thought the same thing we i built it. apparently the rb5 is the same car doesn't need much and after running mine indoors on a fairly smooth track, it works well.

after i put on the longer eyelets the car seemed lazier and didnt transition as well.

less droop will cause alot of steering which we're tuning out with the 2/4deg caster blocks.
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Old 11-13-2012, 07:47 AM   #2549
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Definitely has a lot of steering, I can tell that from just tooling around on the driveway. Suppose will hold off bench tuning until i have time to get to the track.

Is anyone just going with flipping the bukhead/kickup block to 30degrees (29/30 pretty darn close)
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Old 11-13-2012, 08:05 AM   #2550
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Quote:
Originally Posted by negatv1 View Post
Definitely has a lot of steering, I can tell that from just tooling around on the driveway. Suppose will hold off bench tuning until i have time to get to the track.

Is anyone just going with flipping the bukhead/kickup block to 30degrees (29/30 pretty darn close)
Were doing a lot more than just adding 4 degrees of caster to help tame the infield steering... the biggest changes are springs and piston/oil changes. The out of the box setup is extremely aggressive.

You can run the suspension hanger backwards (30) and run the 0 inserts, but this will give the car more front kickup, resulting is more off power steering. You can go that route, but you will be making two changes at once: (+5 caster and increased kickup angle).

Nothing wrong with it... it all depends on how you want your buggy to drive. Even though the car has mega steering already, I am planning on moving to 30/0 caster to see how the car does with more kickup.
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