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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 11-20-2012, 11:31 PM   #2731
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I got a chance to run my car at WCRC tonight and wow what an amazing car. It felt awesome. I only got to run three packs through it and right out of the box it wasn't bad, made a minor adjustment by raising the inner camber link with a 2mm shim and BOOM hooked. I would like to know what the fast lap times in stock are on the current track but I am pretty sure I was not far off.

Making me question a lot whether I want a B44.2 or a ZX5 FS2 now more. My hats off to Kyosho on this car.
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Old 11-21-2012, 12:09 AM   #2732
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What gearing and tires did you use?

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Originally Posted by OnRDPassion View Post
I got a chance to run my car at WCRC tonight and wow what an amazing car. It felt awesome. I only got to run three packs through it and right out of the box it wasn't bad, made a minor adjustment by raising the inner camber link with a 2mm shim and BOOM hooked. I would like to know what the fast lap times in stock are on the current track but I am pretty sure I was not far off.

Making me question a lot whether I want a B44.2 or a ZX5 FS2 now more. My hats off to Kyosho on this car.
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Old 11-21-2012, 12:22 AM   #2733
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What gearing and tires did you use?
used 33 / 73 with a schuur speed 17.5 and 38* timing on motor blinky on ESC, suburbs gold front and rear with AKA foams in the front
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Old 11-21-2012, 02:54 AM   #2734
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used 33 / 73 with a schuur speed 17.5 and 38* timing on motor blinky on ESC, suburbs gold front and rear with AKA foams in the front
For a bit more consistent steering I would suggest a set of Jconcepts bar codes up front with open cell foams cut. Good to know you had good results with Suburbs up front. Mine just pushed like crazy with those tires. But going through my car this evening, I noticed a bunch of small problems with the setup.
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Old 11-21-2012, 02:56 AM   #2735
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Originally Posted by OnRDPassion View Post
I got a chance to run my car at WCRC tonight and wow what an amazing car. It felt awesome. I only got to run three packs through it and right out of the box it wasn't bad, made a minor adjustment by raising the inner camber link with a 2mm shim and BOOM hooked. I would like to know what the fast lap times in stock are on the current track but I am pretty sure I was not far off.

Making me question a lot whether I want a B44.2 or a ZX5 FS2 now more. My hats off to Kyosho on this car.
ZX5-FS2 SP hands down. Best 4-Wheel drive buggy ever made. Why bother with something we all know has very fragile diff's let alone inferior plastics that will cause you to rebuild it far more often then any Kyosho car. I can hook you up with a guy who is selling one in cherry, and I mean cherry condition. It's basically brand new.
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Old 11-21-2012, 02:59 AM   #2736
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Originally Posted by OnRDPassion View Post
I got a chance to run my car at WCRC tonight and wow what an amazing car. It felt awesome. I only got to run three packs through it and right out of the box it wasn't bad, made a minor adjustment by raising the inner camber link with a 2mm shim and BOOM hooked. I would like to know what the fast lap times in stock are on the current track but I am pretty sure I was not far off.

Making me question a lot whether I want a B44.2 or a ZX5 FS2 now more. My hats off to Kyosho on this car.
If I am not mistaken fast times in stock are in the low 20's range, maybe 20.1-3. Ask LBCKevin. He will know for sure, he was so dominant on Sunday it was sick, and seriously his car looked like a Mod car going down the straight.
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Old 11-21-2012, 03:11 AM   #2737
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Originally Posted by Cpt.America View Post
Dont use AE spurs.. use Kimbroughs. More true/round, and a fraction as loud.

http://www.amainhobbies.com/product_...ipper-Gear-69T
http://www.amainhobbies.com/product_...pper-Pad-B4-T4
Thank you sir
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Old 11-21-2012, 06:41 AM   #2738
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Originally Posted by jpcopeland1 View Post
If I am not mistaken fast times in stock are in the low 20's range, maybe 20.1-3. Ask LBCKevin. He will know for sure, he was so dominant on Sunday it was sick, and seriously his car looked like a Mod car going down the straight.
Thanks! I can't wait to get out there on a race day!
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Old 11-21-2012, 07:33 AM   #2739
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Default Exotek RB6 parts now at Speedtech

Happy Holidays!

We received numerous requests about the Exotek Racing RB6 parts, which are now online at Speedtech Hobbies.com.

Eat lots of turkey!

Cheers,
Jeff
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Old 11-21-2012, 07:44 AM   #2740
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Happy Holidays!

We received numerous requests about the Exotek Racing RB6 parts, which are now online at Speedtech Hobbies.com.

Eat lots of turkey!

Cheers,
Jeff

Jeff

Any of the blue anodized stuff from Exotek?

Happy Thanksgiving
Todd
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Old 11-21-2012, 07:50 AM   #2741
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at the moment all the parts are red, but he did get in the blk steering rack
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Old 11-21-2012, 07:57 AM   #2742
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Originally Posted by racer x 1 View Post
at the moment all the parts are red, but he did get in the blk steering rack
I have blue accessories.
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Old 11-21-2012, 11:08 AM   #2743
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this will be the next thing i try. AE guys seem to swear by 2 hole pistons. worth a shot. I really liked the losi 55s in my rb5. Trackside rarely has LHR sized jumps but with that being said, we always seem to have some flat lander with an immediate 180 or something else requiring your vehicle to be set and ready. thanks for the info.
you can't compare our shocks directly to the AE shocks... They were a LOT smaller in overall diameter, so a fewer number of holes are required to get the same damping.

With our much larger diameter pistons, a 2 hole, anywhere near a 55 size hole, would require like 12 or 15 weight oil. That would generate a LOT of pack. If that's what you're looking for, go for it. Personally, if looking for that much pack, I would rather run a 4 hole with 56s or 57s.
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Old 11-21-2012, 11:23 AM   #2744
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Originally Posted by Cpt.America View Post
you can't compare our shocks directly to the AE shocks... They were a LOT smaller in overall diameter, so a fewer number of holes are required to get the same damping.

With our much larger diameter pistons, a 2 hole, anywhere near a 55 size hole, would require like 12 or 15 weight oil. That would generate a LOT of pack. If that's what you're looking for, go for it. Personally, if looking for that much pack, I would rather run a 4 hole with 56s or 57s.
They are running 2 hole f/r with the new big bores.
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Old 11-21-2012, 11:24 AM   #2745
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They are running 2 hole f/r with the new big bores.
I had no idea the new AE pistons were two hole pistons... What sized holes? they must be 54s or 53s!
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