R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

    Hide Wikipost
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

Print Wikipost

Like Tree25Likes
Reply
 
Thread Tools Search this Thread
Old 06-27-2013, 04:37 PM   #7411
Tech Addict
 
gelshocker's Avatar
 
Join Date: Sep 2011
Posts: 717
Trader Rating: 1 (100%+)
Default

Hey guys this was raised before, has anyone found a solution to tighten up the slack developed in the steering? Like some delrin inserts, bearings or something? Thanks,
__________________
Kyosho RT5 | RB6
gelshocker is offline   Reply With Quote
Old 06-27-2013, 05:17 PM   #7412
Tech Elite
 
ryanpatrickgore's Avatar
 
Join Date: May 2011
Location: TRCR
Posts: 2,024
Trader Rating: 14 (94%+)
Default

I don't have much slop yet but it's starting to develope. Maybe try using the kyosho shims, I'm sorry I don't have a part number but they are very thin metal shim/washers that work just about everywhere. I think most people buy them to use on their b4 cars. Lol
ryanpatrickgore is offline   Reply With Quote
Old 06-27-2013, 05:20 PM   #7413
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by ryanpatrickgore View Post
I don't have much slop yet but it's starting to develope. Maybe try using the kyosho shims, I'm sorry I don't have a part number but they are very thin metal shim/washers that work just about everywhere. I think most people buy them to use on their b4 cars. Lol
I am running the all aluminum kyosho arms and rack slop free for quite a bit now. It seems its better than the exotek stuff.
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco
aloksatoor is offline   Reply With Quote
Old 06-27-2013, 05:20 PM   #7414
Tech Master
 
Join Date: Jul 2011
Location: Kaohsiung City, Taiwan
Posts: 1,571
Send a message via ICQ to JiuHaWong
Default

http://p-dubracing.co.uk/index.php?m...g80iie3dijgdv0
__________________
오늘의 청소년들이 미래의 문제를 처리 할 준비가 병 슬프게도 있습니다 우려하고있다.
JiuHaWong is offline   Reply With Quote
Old 06-28-2013, 12:38 AM   #7415
Tech Adept
 
Join Date: Jan 2013
Location: Chino, CA
Posts: 231
Trader Rating: 5 (100%+)
Default

Why doesn't anyone run limiters inside front shocks on rb-6? Seems they just adjust overall shock length instead?
Jam-Air is offline   Reply With Quote
Old 06-28-2013, 01:02 AM   #7416
Tech Master
 
silveraider14's Avatar
 
Join Date: Feb 2013
Posts: 1,096
Trader Rating: 6 (100%+)
Default

i would just guess because changing the little bottom eyelid is easier than changind a limiter inside the shock.

doesnt the bottom of the shock adjust droop if you have the short medium or long eyelid?
__________________
B5m - speedpassion.net
Timewarp R/c Raceway
silveraider14 is offline   Reply With Quote
Old 06-28-2013, 07:30 AM   #7417
Tech Elite
 
asc6000's Avatar
 
Join Date: Jan 2011
Location: Meridian Idaho
Posts: 3,386
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by silveraider14 View Post
i would just guess because changing the little bottom eyelid is easier than changind a limiter inside the shock.

doesnt the bottom of the shock adjust droop if you have the short medium or long eyelid?
yes, same for unscrewing X turns
__________________
"you reach the limit, you touch the limit, then you pass the limit, now there is a new limit"
Ayrton Senna
asc6000 is offline   Reply With Quote
Old 06-28-2013, 11:21 AM   #7418
Tech Elite
 
Join Date: Sep 2007
Location: All 48 states...
Posts: 2,053
Trader Rating: 1 (100%+)
Default

Ok who here has good midmotor setup for mod? I know there are plenty of Tebo etc setups but I'm no Tebo.
__________________
Schuurspeed / Aero-model / Gear One / LG1
www.OHRCR.com
Gitsum is offline   Reply With Quote
Old 06-28-2013, 11:48 AM   #7419
Tech Addict
 
Join Date: Dec 2005
Location: HB, CA
Posts: 715
Trader Rating: 31 (100%+)
Default

Quote:
Originally Posted by Gitsum View Post
Ok who here has good midmotor setup for mod? I know there are plenty of Tebo etc setups but I'm no Tebo.
what are you running on carpet, dirt(what kind, indoor, outdoor)?
__________________
MBX6-ECO, B5m
Cspurlock is offline   Reply With Quote
Old 06-28-2013, 12:17 PM   #7420
Tech Elite
 
Join Date: Sep 2007
Location: All 48 states...
Posts: 2,053
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Cspurlock View Post
what are you running on carpet, dirt(what kind, indoor, outdoor)?
Smallish indoor clay tires of choice are hb beams in pink and full shot in pink or Jc greens. Jumps aren't very big and layout is usually pretty flowing. Search The Dirt Invert on YouTube there should be video. I would post it myself but I'm a tard lol.
__________________
Schuurspeed / Aero-model / Gear One / LG1
www.OHRCR.com
Gitsum is offline   Reply With Quote
Old 06-28-2013, 12:35 PM   #7421
Tech Addict
 
Join Date: Dec 2005
Location: HB, CA
Posts: 715
Trader Rating: 31 (100%+)
Default

Quote:
Originally Posted by Gitsum View Post
Smallish indoor clay tires of choice are hb beams in pink and full shot in pink or Jc greens. Jumps aren't very big and layout is usually pretty flowing. Search The Dirt Invert on YouTube there should be video. I would post it myself but I'm a tard lol.
I have been playing with Hara's WC setup from the Reedy race. I changed it a little, here are my changes:
.5 hubs
added this to the motor
http://www.amainhobbies.com/product_...tor-Weight-30g

taped this to the very rear of the car against the bulkhead
http://www.amainhobbies.com/product_...-Stopper-Block

The weight is key or the setup won't feel good. It shifts the weight over the rear tire so that it is similar to a rear motor, but without the pendulum effect of all the weight being behind the wheels.

shorty turned sideways all the way back, low pro servo up front, 2x1.6 taper AE pistons, 35f 30r

If your track has some grip, this should feel pretty good. If it is loose, not so much .
__________________
MBX6-ECO, B5m
Cspurlock is offline   Reply With Quote
Old 06-28-2013, 02:32 PM   #7422
Tech Fanatic
 
Orion_2kTC's Avatar
 
Join Date: Sep 2010
Location: Lincoln, NE
Posts: 893
Trader Rating: 9 (100%+)
Default

I'm starting to think that my first 2WD Buggy will be an RB6. I plan on starting with the 17.5 class and moving up to mod when I'm confident. I'm curious on a couple things.

Is the build and manual simple enough that I can build this? I've never assembled any RC cars before but I have worked on a Losi 8Ight-E

I've heard that the various aluminum steering parts from Exotek are recommended for strength and stability. I would also probably buy the CF towers and battery holders. What other suggestions would you folks make? Link to Exotek for convenience! I'll take other brand recommendations too.

http://www.exotekracing.com/kyosho/

The shocks that come with the stock kit, are they the "velvet" shocks that everyone seems to swoon over? They're not advertised as such. If not, are they still good?

I've been reading info from this thread for a while now and while the RB6 is an expensive car, I believe in quality. This car has the look I want, the features I want, and seems to be built with quality in mind. Local parts support is there to a point but in this internet age, it doesn't bother me if I have to order from amain or other sites.
Orion_2kTC is offline   Reply With Quote
Old 06-28-2013, 03:20 PM   #7423
Tech Initiate
 
Join Date: Jun 2013
Posts: 48
Default

I've liked all the Kyosho aluminum steering rack parts (cranks and rack itself) which are basically slop-free after a few thousand laps, although you can't go wrong with Exotek. They make a front hinge pin brace that I'd like to try. I've never broken a shock tower, mainly just some front suspension mounts and bent/broken front braces. Shredded an idler gear once. Use the reinforced black ones!

There are probably parts of the build manual that could be more clear but if you've put together a kit before you'll have no problem. It really doesn't need that much in terms of upgrades. You won't be disappointed!
BryanJ is offline   Reply With Quote
Old 06-28-2013, 03:23 PM   #7424
Tech Elite
 
t8rtot's Avatar
 
Join Date: Nov 2008
Posts: 2,010
Trader Rating: 14 (94%+)
Default

Quote:
Originally Posted by Orion_2kTC View Post
I'm starting to think that my first 2WD Buggy will be an RB6. I plan on starting with the 17.5 class and moving up to mod when I'm confident. I'm curious on a couple things.

Is the build and manual simple enough that I can build this? I've never assembled any RC cars before but I have worked on a Losi 8Ight-E

I've heard that the various aluminum steering parts from Exotek are recommended for strength and stability. I would also probably buy the CF towers and battery holders. What other suggestions would you folks make? Link to Exotek for convenience! I'll take other brand recommendations too.

http://www.exotekracing.com/kyosho/

The shocks that come with the stock kit, are they the "velvet" shocks that everyone seems to swoon over? They're not advertised as such. If not, are they still good?

I've been reading info from this thread for a while now and while the RB6 is an expensive car, I believe in quality. This car has the look I want, the features I want, and seems to be built with quality in mind. Local parts support is there to a point but in this internet age, it doesn't bother me if I have to order from amain or other sites.
you can build it, just take your time. i would get the steering rack, don't worry about the carbon fiber, car doesn't need it, invest in alum hangers.

the shocks are velvet and they are the best.

build it, drool over it, wipe it off, start with the kit setup and race it
__________________
Sfida
t8rtot is offline   Reply With Quote
Old 06-28-2013, 04:10 PM   #7425
Tech Apprentice
 
RacinJacin's Avatar
 
Join Date: May 2013
Location: Orange County/ Anaheim hills
Posts: 56
Default

I replaced the stock rear hub carrier with a .5 deg tow in aluminum hub from Kyosho. The new hubs have an oversized outer bearing that is way way better that stock. They just got another revised hub carrier that has both oversize bearings. It should be even better. I am going to get those too but in 0 deg. For some reason I like 0 deg better. Who would have thought I would be able to tell the difference. The In sprung weight might not be the best thing but it is stronger, Its just a preventative measure. The RB6 is an amazing Car. It seems to do everything well. I have not found a flaw yet. I have picked up all the Kyosho Hop ups available although I didn't need any of them. I have not really had anything break.
RacinJacin is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ryde it like you stole it: the Ryde Drivers thread. old_skoolie Australian Racing 22977 11-13-2017 05:09 PM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15026 11-02-2017 04:19 PM
Kyosho Ultima RB5 Thread Drift_Buggy Electric Off-Road 14641 11-10-2015 09:28 AM
Kyosho Ultima SC aeRayls Electric Off-Road 2599 04-27-2014 05:30 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:48 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net