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 06-24-2014, 06:34 AM   #10516
Tech Master
 
KalEl63's Avatar
 
Join Date: Jun 2011
Location: 3rd Rock
Posts: 1,950
Trader Rating: 12 (100%+)
Default

Zylux I know what you are talking about even though mine comes from RM.
As soon as I changed to 3.5 rear toe the car changed I have also used white and going to give pink a try.

Also I recommend more anti-squat ~2 I did this to my RM and the car felt better again IMO
I ran my MM at our track and felt with these changes it would work on a medium type grip track. I just need to get the hangers to do so
Hope my input sort of helps you
__________________
Team Associated RC10 B6D
Team Associated RC10 B64D
Team Associated RC10 T5M

1.21 GIGAWATTS!!!
KalEl63 is offline   Reply With Quote
Old 06-24-2014, 01:53 PM   #10517
Tech Adept
 
Zylux's Avatar
 
Join Date: May 2014
Location: Melbourne, Victoria, Australia
Posts: 116
Default

Quote:
Originally Posted by mourinho View Post
Zylux - I experienced similar issues with the rear end spinning out on similar track conditions.
The thing that helped the most was loosening the diff, I had it far too tight from when I was running on carpet, then going to hardpack with dust it was all over the place.
Thanks mate, I'll try loosening the diff a little. Diff tightness is one area I'm fairly unclear about in terms of how it should feel on the bench so I may well have it too tight.
Zylux is offline   Reply With Quote
Old 06-24-2014, 01:57 PM   #10518
Tech Adept
 
Zylux's Avatar
 
Join Date: May 2014
Location: Melbourne, Victoria, Australia
Posts: 116
Default

Quote:
Originally Posted by KalEl63 View Post
Zylux I know what you are talking about even though mine comes from RM.
As soon as I changed to 3.5 rear toe the car changed I have also used white and going to give pink a try.

Also I recommend more anti-squat ~2 I did this to my RM and the car felt better again IMO
I ran my MM at our track and felt with these changes it would work on a medium type grip track. I just need to get the hangers to do so
Hope my input sort of helps you
Great, hopefully the extra 1.5deg of rear toe will improve things. I'll try more anti-squat as well. I have every front and rear spring except for the rear white and pink so that will have to wait. I may try playing with roll centers and shock mounting positions to reduce the relative roll stiffness at the back end in the interim.

Appreciate the help guys!
Zylux is offline   Reply With Quote
Old 06-24-2014, 07:11 PM   #10519
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Anyone get those stupid pills stuck in the rear suspension holders. I tried to remove one with and of my hex and ended up putting a hole right threw it. Now I can't get it out. Don't want to spend another 20 bucks on the part
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 06-24-2014, 11:15 PM   #10520
Tech Regular
R/C Tech Elite Subscriber
 
Join Date: Mar 2012
Location: NYC
Posts: 254
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Speedychris22 View Post
Anyone get those stupid pills stuck in the rear suspension holders. I tried to remove one with and of my hex and ended up putting a hole right threw it. Now I can't get it out. Don't want to spend another 20 bucks on the part
They sell the pills separately for like 5 bucks. Same thing happened to me too, but i ordered extra pills from the giddy up out of fear of losing them
glenng is offline   Reply With Quote
Old 06-25-2014, 01:44 AM   #10521
Tech Regular
 
Gayosaka's Avatar
 
Join Date: Dec 2005
Location: France, near Paris
Posts: 309
Default

Just use some grease when inserting them.
__________________
RedWorkShop RZ6R / Kyosho RB6.6 / Kyosho ZX6.6 / Nosram power / Some MiniZ
www.rustidesign.com - Awesome custom stickers and cool stuff
Gayosaka is offline   Reply With Quote
Old 06-26-2014, 07:10 AM   #10522
Tech Fanatic
 
Join Date: Mar 2008
Posts: 820
Trader Rating: 31 (100%+)
Default

Has anybody confirmed the difference between the RTR chassis and the standard rb6 chassis? Are they the same with different annodizing or are there other differences?
__________________
Andy Watts, Gilbert Arizona. I would like to thank:
Tekno RC, Castle Creations,
Rw-Mods and Argus Engines
MKS Servos, Protek RC, Amainhobbies
Kenny Brosh, Fear Farm RC Track
adubaz7 is offline   Reply With Quote
Old 06-26-2014, 10:52 AM   #10523
Tech Regular
 
Holmberg418's Avatar
 
Join Date: Apr 2012
Location: Blaine,Mn
Posts: 471
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by adubaz7 View Post
Has anybody confirmed the difference between the RTR chassis and the standard rb6 chassis? Are they the same with different annodizing or are there other differences?
Rtr is stamped I think and kit is milled. They are different different metals as well I believe.
__________________
Kyosho America, Lunsford, Stickit1racing, Jconcepts, JTP
Full Throttle R/C Raceway www.ftrcr.com
510 Raceway
Holmberg418 is offline   Reply With Quote
Old 06-26-2014, 12:12 PM   #10524
Tech Master
 
Join Date: Sep 2011
Posts: 1,217
Trader Rating: 23 (100%+)
Default

I just cant' get on with it. The car drives so much better with the ESC in front of the battery. I have been playing with the ESC between the motor and battery but it's just not working. I'm going back to what works. I feel the car has better steering setup this way. Having the ESC next to the motor I have to add weight to the car which I don't like to get the traction I need. Am I crazy?
chevmaro is offline   Reply With Quote
Old 06-26-2014, 01:33 PM   #10525
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by chevmaro View Post
I just cant' get on with it. The car drives so much better with the ESC in front of the battery. I have been playing with the ESC between the motor and battery but it's just not working. I'm going back to what works. I feel the car has better steering setup this way. Having the ESC next to the motor I have to add weight to the car which I don't like to get the traction I need. Am I crazy?
Nope right on target from my perspective . I gather ur running a LW chassis? I also run my mid motor with shorty forwards, esc on the rt6 esc shelf, rx behind servo. Leaves enuff room to put a fan in front of the motor as well. Tonnes of steering. I found the car to jump bad with everything near the rear as well .
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco
aloksatoor is offline   Reply With Quote
Old 06-26-2014, 01:42 PM   #10526
Tech Master
 
Join Date: Sep 2011
Posts: 1,217
Trader Rating: 23 (100%+)
Default

My car always runs best when I don't try things other people are doing.
chevmaro is offline   Reply With Quote
Old 06-26-2014, 02:13 PM   #10527
Tech Adept
 
Zylux's Avatar
 
Join Date: May 2014
Location: Melbourne, Victoria, Australia
Posts: 116
Default

Quote:
Originally Posted by chevmaro View Post
I just cant' get on with it. The car drives so much better with the ESC in front of the battery. I have been playing with the ESC between the motor and battery but it's just not working. I'm going back to what works. I feel the car has better steering setup this way. Having the ESC next to the motor I have to add weight to the car which I don't like to get the traction I need. Am I crazy?
Yeah, if you are running out-door medium grip tracks then I think you need the weight as far back as possible. I run my shorty against the motor with a lightweight Tekin ESC in front as well as a KO-Propo shorty servo and I still only have a 38/62% weight distribution - which from what I'm told is still too front heavy for ideal handling on medium grip hard-packed tracks. I may even try the battery across the back of the motor instead of inline to see if I can shift the weight to the rear a bit more.
Zylux is offline   Reply With Quote
Old 06-26-2014, 08:06 PM   #10528
Tech Regular
 
Trident69's Avatar
 
Join Date: Mar 2013
Posts: 397
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by aloksatoor View Post
Nope right on target from my perspective . I gather ur running a LW chassis? I also run my mid motor with shorty forwards, esc on the rt6 esc shelf, rx behind servo. Leaves enuff room to put a fan in front of the motor as well. Tonnes of steering. I found the car to jump bad with everything near the rear as well .
nro, possible to clip a pix of your electronics layout?..
cheers!!
__________________
"Power is nothing without Control"
===========================
Yokomo - Yz-2/Yz-2 DT/ Yz-4 / Bmax2MR/Bmax 4/3
Xray - XB4'16
Awesomatix - Evo 2
Trident69 is offline   Reply With Quote
Old 06-27-2014, 08:28 AM   #10529
Tech Elite
 
K_King's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 4,172
Trader Rating: 38 (100%+)
Send a message via AIM to K_King
Default

Anyone try red front springs yet? The AE Guys are running red and gold. 1.6s all around.
K_King is offline   Reply With Quote
Old 06-27-2014, 08:33 AM   #10530
Tech Master
 
Join Date: Sep 2011
Posts: 1,217
Trader Rating: 23 (100%+)
Default

I run Avid Red Springs. I have a hard time paying 20 bucks for springs. I have been tuning with the Avid's for a while. They are pretty great. I can't seem to find spring rates for any of the Kyosho springs. Avid Red Fronts are 3.3lb and noticeably stiffer then kyo pink.
chevmaro 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 01:04 AM.


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