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 Tree6Likes
Reply
 
Thread Tools Search this Thread
Old 04-06-2015, 02:14 PM   #11896
Tech Master
 
M03Racer's Avatar
 
Join Date: Apr 2010
Location: Great Lakes
Posts: 1,180
Trader Rating: 32 (100%+)
Default

Thanks guys for the heads up it was a Nova spur and I already ordered a larger spur.
M03Racer is offline   Reply With Quote
Old 04-06-2015, 04:07 PM   #11897
Tech Adept
 
SoCalMX's Avatar
 
Join Date: Apr 2014
Location: Sunny Southern Cal...
Posts: 197
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by phillypete View Post
hmmmm....

First make sure the slipper is assembled properly. It can be a little tricky. Make sure all the washers and pads are in the proper places. While doing this have an experienced racer check your pads. You don't want them to look glazed. If they are a quick lap around some high grit sand paper will clean them up. Also check for build up the metal discs.

Next have an experienced racer check and adjust your diff. If it needs to be tightened you may want to run it in a couple of times (hold one wheel and apply 1/4 throttle, allowing the other wheel to spin freely for approximately 20 seconds) and check it again.

Finally do a slipper test on the bench. Place your buggy pointing away from you. While holding your radio in your throttle hand; hold one rear wheel firmly with your free hand and then firmly press down on the other rear wheel with base of the radio. Now give the throttle a firm blip. Don't hold it just a quick blip of full throttle. Note how high or if the front wheels lift off the ground. Also note any sounds that may result. A high pitched squeak is the slipper. A midrange "bark" is the diff. Another way to know if it is the diff or the slipper is to watch the reaction of racers near-by. They won't react to a slipper chirp, but a diff bark will send them into convulsions. Barking the diff is bad, one small bark won't kill it, but more than a couple will ruin a brand new diff. You want to see the wheels lift off the table by about 2" to start. Not enough lift and you'll find it difficult to accelerate rapidly, too much and the car will become difficult to drive.

Above all, don't be afraid to ask for help. I have come across very few racers who won't help if asked, but even less racers have the ability to tell that you are having difficulty with out you asking.
Had the guys at OCRC help me out & looks like my diff is shot! Time for my 1st ever ball diff rebuild.

EDIT- What all goes wrong in there? While I am in should I blow the whole thing apart and replace everything including cases? Or clean and re grease?
__________________
Losi 5ive-T monster
Kyosho RB6 mid...
Kyosho SC6 mid...
Kyosho RT6 mid...

Last edited by SoCalMX; 04-06-2015 at 05:42 PM.
SoCalMX is offline   Reply With Quote
Old 04-06-2015, 06:21 PM   #11898
Tech Fanatic
 
Join Date: Dec 2004
Location: Olathe, KS
Posts: 884
Trader Rating: 9 (100%+)
Default

Just an FYI, Amazon has the RB6 for $379.
__________________
-Ryan-
CTRJ is offline   Reply With Quote
Old 04-06-2015, 07:16 PM   #11899
Tech Master
 
M03Racer's Avatar
 
Join Date: Apr 2010
Location: Great Lakes
Posts: 1,180
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by CTRJ View Post
Actually you can get it at Amazon for $370.73 w/free shipping, but it ships from Japan.
M03Racer is offline   Reply With Quote
Old 04-06-2015, 07:45 PM   #11900
Tech Master
 
jelly's Avatar
 
Join Date: Feb 2005
Location: here
Posts: 1,006
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by SoCalMX View Post
Had the guys at OCRC help me out & looks like my diff is shot! Time for my 1st ever ball diff rebuild.

EDIT- What all goes wrong in there? While I am in should I blow the whole thing apart and replace everything including cases? Or clean and re grease?
new plates, balls, thrust bearing. just clean the rest.
jelly is offline   Reply With Quote
Old 04-06-2015, 07:50 PM   #11901
Tech Adept
 
SoCalMX's Avatar
 
Join Date: Apr 2014
Location: Sunny Southern Cal...
Posts: 197
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by jelly View Post
new plates, balls, thrust bearing. just clean the rest.
Thanks Jelly! That was your 1000th post!
__________________
Losi 5ive-T monster
Kyosho RB6 mid...
Kyosho SC6 mid...
Kyosho RT6 mid...
SoCalMX is offline   Reply With Quote
Old 04-06-2015, 09:31 PM   #11902
Tech Master
 
3srcracing's Avatar
 
Join Date: Nov 2011
Location: Utah
Posts: 1,751
Trader Rating: 25 (100%+)
Default

Well last minute tonight pulled out the wire cutters and the dremel and switched everything over to sideways. Going to try out tomorrow, kinda have high hopes for it!

I can pull wheelies in my basement now with my 17.5, seems like it has a lot more rear traction, which I think will help me. If I lose some steering I'll turn my dual rate up from 72% to 85-87%.
3srcracing is offline   Reply With Quote
Old 04-07-2015, 05:23 AM   #11903
Tech Elite
R/C Tech Elite Subscriber
 
Join Date: Aug 2010
Location: Anaheim Ca.
Posts: 3,884
Trader Rating: 137 (100%+)
Default

Second race with the RB6. Tq and won stock buggy by a lap. Car is so good I'm not changing a thing. Same for my ZX6, and RT6. TQ and wins in both other classes.
__________________
TLR 22T 3.0, TLR 22-4 2.0 , TLR 22 4.0 X2, 22SCT 3.0, Tekno SCT 4X4, Hobbywing, Futaba, LRH Hobbies, Spektrum Servos, iCharger.
jpcopeland1 is offline   Reply With Quote
Old 04-07-2015, 05:44 AM   #11904
Tech Apprentice
 
Join Date: Sep 2010
Posts: 51
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by jpcopeland1 View Post
Second race with the RB6. Tq and won stock buggy by a lap. Car is so good I'm not changing a thing. Same for my ZX6, and RT6. TQ and wins in both other classes.
Care to show me how you are running your battery?
Mattgee87 is offline   Reply With Quote
Old 04-07-2015, 07:02 AM   #11905
Tech Adept
 
SoCalMX's Avatar
 
Join Date: Apr 2014
Location: Sunny Southern Cal...
Posts: 197
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by jpcopeland1 View Post
Second race with the RB6. Tq and won stock buggy by a lap. Car is so good I'm not changing a thing. Same for my ZX6, and RT6. TQ and wins in both other classes.
Second on the battery placement request! Also, where are you racing, was it OCRC? I am also still considering a RT6, is there a lot of cross compatibility between the B and the T?
__________________
Losi 5ive-T monster
Kyosho RB6 mid...
Kyosho SC6 mid...
Kyosho RT6 mid...
SoCalMX is offline   Reply With Quote
Old 04-07-2015, 07:32 AM   #11906
Tech Elite
R/C Tech Elite Subscriber
 
Join Date: Aug 2010
Location: Anaheim Ca.
Posts: 3,884
Trader Rating: 137 (100%+)
Default

Quote:
Originally Posted by SoCalMX View Post
Second on the battery placement request! Also, where are you racing, was it OCRC? I am also still considering a RT6, is there a lot of cross compatibility between the B and the T?
Other then chassis, arms, towers, and axles, both cars are indentical. It was at LRH which is still high bite SoCal clay. Truck would be even better at OC/RC, but I cant race Wednesday or Friday cause of school. Wish they would run again on Saturdays. I think the truck would be much better there cause its smoother, but LRH makes you drive better cause of the ruts
__________________
TLR 22T 3.0, TLR 22-4 2.0 , TLR 22 4.0 X2, 22SCT 3.0, Tekno SCT 4X4, Hobbywing, Futaba, LRH Hobbies, Spektrum Servos, iCharger.
jpcopeland1 is offline   Reply With Quote
Old 04-07-2015, 07:51 AM   #11907
Tech Elite
R/C Tech Elite Subscriber
 
Join Date: Aug 2010
Location: Anaheim Ca.
Posts: 3,884
Trader Rating: 137 (100%+)
Default

Quote:
Originally Posted by SoCalMX View Post
Second on the battery placement request! Also, where are you racing, was it OCRC? I am also still considering a RT6, is there a lot of cross compatibility between the B and the T?
Here is how I did It. But kep in kind I do have rhe brass block so my weight us right where I want it. Could probably get rid of it in stock, but I like a very balanced car better then a light weight all of the place car.
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-14284182426541277203649.jpg  
__________________
TLR 22T 3.0, TLR 22-4 2.0 , TLR 22 4.0 X2, 22SCT 3.0, Tekno SCT 4X4, Hobbywing, Futaba, LRH Hobbies, Spektrum Servos, iCharger.
jpcopeland1 is offline   Reply With Quote
Old 04-07-2015, 01:20 PM   #11908
Tech Regular
 
MayorRC's Avatar
 
Join Date: Jun 2013
Location: Portland, Oregon
Posts: 327
Trader Rating: 9 (100%+)
Default

Quick question here, tried to search the thread but couldn't find an answer, but what's the advantage to running the steel RB5 axles (UM506) on the front? Seeing it on a few of the setups on Kyosho's site, but what's the reasoning? Thanks!
__________________
Kyle-Keenan.com | MayorRC.com | McKune Design | Hella Graphics | 2WDMod.com | Kyosho | Orion
MayorRC is offline   Reply With Quote
Old 04-07-2015, 07:08 PM   #11909
Tech Master
 
M03Racer's Avatar
 
Join Date: Apr 2010
Location: Great Lakes
Posts: 1,180
Trader Rating: 32 (100%+)
Default

Here is my set up. I will be running a mid battery set up. Some of the guys at the track ran rear battery set up last year and they where just a bit off balanced on the jumps so I figured to try a mid battery set up. Now I just have to test the car to see how it handles but the track is still closed here since it's still cold hope we will get better weather soon.
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-rb6.jpg  
M03Racer is offline   Reply With Quote
Old 04-07-2015, 07:47 PM   #11910
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Mar 2012
Location: NYC
Posts: 254
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by M03Racer View Post
Here is my set up. I will be running a mid battery set up. Some of the guys at the track ran rear battery set up last year and they where just a bit off balanced on the jumps so I figured to try a mid battery set up. Now I just have to test the car to see how it handles but the track is still closed here since it's still cold hope we will get better weather soon.
any concerns with traction w that setup?
glenng 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 22936 08-14-2017 04:25 AM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15013 06-22-2017 04:17 PM
Kyosho Ultima RB5 Thread Drift_Buggy Electric Off-Road 14641 11-10-2015 08:28 AM
Kyosho Ultima SC aeRayls Electric Off-Road 2599 04-27-2014 04:30 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 06:32 PM.


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