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Kyosho Ultima RB6 & RB6.6 Car Thread

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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:

Main chassis - UM731 - $125.99
Side guards - UM732 - $9.99

Battery Holder:

Battery plate - UM733 - $8.99
Battery foam - UM741 - $7.99

Rear Bulkheads:

MM3 and Laydown - UM740 - $9.99
- MM3 bulkhead
- Laydown bulkhead
- Swaybar Holders

3 Gear Transmission (MM and RM):

Transmission - UM734 - $10.99
- transmission cases
- spacers
- caps
- plastic FR & RR suspension hangers
Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):

Transmission - UM736 - $10.99
- transmission cases
- spacers
- caps
- required extra hardware
- pastic FR suspension hanger
40T idler - UM737 - $6.99
Motor plate - UM738 - $18.99
Gear cover - UM739 - $6.99

Body:

Blade body - UMB05 - $27.99

Optional Parts:

Lightweigt Blade body - UMB05LW - $31.99
Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
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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10-10-2012, 04:24 AM

#1321

Posvar

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Starting my build tonight!!!

10-10-2012, 05:59 AM

#1322

bigwavedave33

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Quote:

Originally Posted by Eric Summers

Package tags say "Always the Best"
Too bad the manual isn't.

I called Kyosho on that and they agreed LOL. The "proper" way to install the shock bushing is to use the 4.8mm and crush them, but I see that as a little errrr queer at best. I'm gonna use the 5.8s I have and cut them to the same size.

10-10-2012, 06:09 AM

#1323

silvalis

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First race meet with the RB6, team japan setup with pink/red, changed to pink/gold and ifmar pins and the buggy was a dream to drive.

I notice that it tends to nosedive a bit. Nothing wrong with that, but didn't expect it on the first jump, dug the nose into the dirt and had to fight my way back from last to 2nd. I also notice that with my current setup (team japan, pink/gold, 35/30 oil, silver losi wide ribs/red pins) steering is good under power but if i let off a bit and the weight transfers back to the front, the fronts grab a bit and the rear gets a bit loose.

I'm going to fiddle with the shocks a bit, currently on 35/30wt f/r, might change to 40/35 or 40/40 as the rear is still a bit bouncy on my bumpy track. Any comments on slowing down the rear?

10-10-2012, 06:23 AM

#1324

bigwavedave33

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Quote:

Originally Posted by Posvar

Starting my build tonight!!!

can't believe I beat you building it... I'm running saddles to start out with. I'll post some pics tonight when I get done with the wire clean up.

10-10-2012, 08:04 AM

#1325

Cpt.America

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Quote:

Originally Posted by cantrell8

your going to need all the practice you can get, competitions is going to be high this weekend!

oh i know it! But, it has come down the wire here, building, wiring and painting the car. I don't think im going to see clay until friday at TRCR. It's ok though, team Matesa is supposed to be saving me a spot at the Kyosho table

10-10-2012, 08:05 AM

#1326

hollywood7

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just got mine should i boil some of the plastic parts to make it st

ronger?

10-10-2012, 08:05 AM

#1327

Cpt.America

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Quote:

Originally Posted by hollywood7

just got mine should i boil some of the plastic parts to make it st

ronger?

Nope, the car will be money right out of the b

10-10-2012, 08:32 AM

#1328

Cpt.America

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Quote:

Originally Posted by Posvar

Starting my build tonight!!!

Bitchen!... make sure to take a photo of your final build with your electronics layout.

10-10-2012, 08:58 AM

#1329

Derry

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Quote:

Originally Posted by Cpt.America

Bitchen!... make sure to take a photo of your final build with your electronics layout.

Here is my layout..

Attached Thumbnails

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10-10-2012, 09:30 AM

#1330

t8rtot

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are your wires going over your wing mount? weird camera angle?

10-10-2012, 09:36 AM

#1331

Derry

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Quote:

Originally Posted by t8rtot

are your wires going over your wing mount? weird camera angle?

in between. Yeah, that angle does make it look over.

10-10-2012, 09:52 AM

#1332

gas1313

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Rims

Does the rb5 rims fit the car front and rear! Sorry if this has been ask but did not see it! Thanks

10-10-2012, 09:53 AM

#1333

Posvar

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Will do Brandon! Gonna be neat and tidy!

10-10-2012, 09:56 AM

#1334

Posvar

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Yes on the rims!!!

10-10-2012, 10:04 AM

#1335

DeanV

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Finished mine over the weekend. The plastic battery posts with clips just irked me, so yesterday morning I modified the battery holder to accept my aluminum posts. Since I am running the standard lipo, I have a spare battery holder just in case I need to go back

Starting with the Japan setup with two minor changes. 0 degrees in the caster block (instead of 4) and .5 degree rear hubs (instead of 0).

Dean

Attached Thumbnails

Kyosho Ultima RB6 & RB6.6 Car Thread-2012-10-06_15-34-18_972_1024x768.jpg

Kyosho Ultima RB6 & RB6.6 Car Thread-2012-10-06_15-59-14_880_1024x768.jpg

Kyosho Ultima RB6 & RB6.6 Car Thread-2012-10-06_15-59-30_215_1024x768.jpg

Kyosho Ultima RB6 & RB6.6 Car Thread-2012-10-09_10-22-03_612_1024x768.jpg