R/C Tech Forums

Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Kyosho Ultima RB6 & RB6.6 Car Thread >

Kyosho Ultima RB6 & RB6.6 Car Thread

Register
FAQ
Members List
Social Groups
Wiki Posts
Calendar
Search
Today's Posts
Mark Forums Read
Vendor Directory
Like Tree172Likes

Kyosho Ultima RB6 & RB6.6 Car Thread

    Hide Wikipost
Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread 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

   
Old 12-14-2013, 04:06 PM
  #8956  
Tech Master
iTrader: (33)
 
nickdawg18's Avatar
 
Join Date: Jul 2010
Location: Granite City, IL
Posts: 1,696
Trader Rating: 33 (100%+)
Default
i had a problem today that cost me the A main. I came down from a jump and kinda overshot the landing so there was a little chassis slap. The positive battery wire slapped the damn mode button on my esc. I was like WTF. It happened twice. but the buggy ran awesome. TQ'd and led the majority of the race until that crap happened. but you live and you learn. I think I'm gonna ditch tekin in 1/10th scale and and go orion.
nickdawg18 is offline  
Reply
Old 12-14-2013, 04:09 PM
  #8957  
Tech Lord
iTrader: (38)
 
Oasis's Avatar
 
Join Date: Dec 2002
Location: * Sin Cal *
Posts: 11,010
Trader Rating: 38 (100%+)
Default
Originally Posted by VenturaDC
Haven't had any issues yet, been a few months on the 6 and never really had any leakages for the last few years with my 5. Did you miss the oring that goes in the small screw cap for the shock seal orings?
Not where it's leaking from..it leaking from the O ring shock shaft area..it could be "operater error"..but I doubt it..over the last year I've built 3 full sets of Durango shocks..2 full sets of Losi 22 shocks..2 sets of Associated 12mm shocks and NONE of them have leaked..and none of the above cars were as expensive as the RB6. .so I'm a bit dissapointed to have to buy a shock rebuild kit for a brand new car..
Oasis is offline  
Reply
Old 12-14-2013, 04:28 PM
  #8958  
Tech Elite
iTrader: (2)
 
Razathorn's Avatar
 
Join Date: May 2009
Posts: 2,214
Trader Rating: 2 (100%+)
Default
I've built quite a few k shocks and I never had any leaks. That's pretty strange.
Razathorn is offline  
Reply
Old 12-14-2013, 05:01 PM
  #8959  
Tech Adept
iTrader: (9)
 
Join Date: Dec 2009
Posts: 203
Trader Rating: 9 (100%+)
Default
Originally Posted by nickdawg18
i had a problem today that cost me the A main. I came down from a jump and kinda overshot the landing so there was a little chassis slap. The positive battery wire slapped the damn mode button on my esc. I was like WTF. It happened twice. but the buggy ran awesome. TQ'd and led the majority of the race until that crap happened. but you live and you learn. I think I'm gonna ditch tekin in 1/10th scale and and go orion.
Tekin makes nice stuff.... Orion is really good too. I'm sure you won't regret making the switch. I don't even have a program box...once its set up, you just run the thing and it rocks.

Glad you got your RB6 working good .
sir_thomas is offline  
Reply
Old 12-14-2013, 05:08 PM
  #8960  
Tech Adept
iTrader: (9)
 
Join Date: Dec 2009
Posts: 203
Trader Rating: 9 (100%+)
Default
Originally Posted by Oasis
Anyone having issues with their shocks leaking ? My front bottom seals leak..not just a little..I built them per kit instructions..green slime..I have never had so many problems with shocks..put new O rings in also and they still leak...
Sometimes the o-rings get pinched and it sounds like the shock shaft o-rings are fine since you replaced them and still have the issue. I'd replace the outer shock cartridge o ring. If it's not that....then last thing to do is check plastic internal spacers and replace those...perhaps a bad mold.

I believe it's this....without looking it up in a manual.
http://www.amainhobbies.com/product_...ock-Seal-Set-4

Just to make sure........where is it leaking? Down the shaft or by the threads where it screws into the body?
sir_thomas is offline  
Reply
Old 12-14-2013, 05:09 PM
  #8961  
Tech Adept
 
Join Date: Sep 2011
Posts: 188
Default
Can I use the losi 22 topshaft for the rb6?

I'm using avid slippers on my 22 and I took it off and didn't fit the stock rb6 due to the shaft is fatter..

I just don't want to take my 22 apart and not knowing it will fit lol.. aka lazy
iMarky is offline  
Reply
Old 12-14-2013, 05:51 PM
  #8962  
Tech Master
iTrader: (32)
 
VenturaDC's Avatar
 
Join Date: Oct 2007
Location: Ventura, SoCal
Posts: 1,133
Trader Rating: 32 (100%+)
Default
Originally Posted by Oasis
Not where it's leaking from..it leaking from the O ring shock shaft area..it could be "operater error"..but I doubt it..over the last year I've built 3 full sets of Durango shocks..2 full sets of Losi 22 shocks..2 sets of Associated 12mm shocks and NONE of them have leaked..and none of the above cars were as expensive as the RB6. .so I'm a bit dissapointed to have to buy a shock rebuild kit for a brand new car..
Isn't there an oring that goes inside the little cap the helps push the white piece against the orange orings? I missed it on one of mine when building, caught it before I filled them cause it was the one left over piece I had, I did notice it made the little cap fit much looser.
VenturaDC is offline  
Reply
Old 12-14-2013, 06:06 PM
  #8963  
Tech Master
iTrader: (33)
 
nickdawg18's Avatar
 
Join Date: Jul 2010
Location: Granite City, IL
Posts: 1,696
Trader Rating: 33 (100%+)
Default
Originally Posted by sir_thomas
Tekin makes nice stuff.... Orion is really good too. I'm sure you won't regret making the switch. I don't even have a program box...once its set up, you just run the thing and it rocks.

Glad you got your RB6 working good .
yea, I've had time to sit here and think about it. I like the way I have my electronics setup, so I'll give the tekin stuff another shot. I think those pistons I bought from sk is going to really help out with the chassis slap issue.
nickdawg18 is offline  
Reply
Old 12-14-2013, 07:27 PM
  #8964  
Tech Adept
 
Join Date: Sep 2011
Posts: 188
Default
Do you guys use the shim for the kick plate for indoor clay track ?
iMarky is offline  
Reply
Old 12-14-2013, 07:35 PM
  #8965  
Tech Elite
iTrader: (89)
 
Johnn27's Avatar
 
Join Date: Aug 2009
Location: " The World's Most Famous Beach "
Posts: 2,306
Trader Rating: 89 (100%+)
Default No Shim
No I do not use the shim ...
Johnn27 is offline  
Reply
Old 12-14-2013, 07:38 PM
  #8966  
Tech Lord
iTrader: (38)
 
Oasis's Avatar
 
Join Date: Dec 2002
Location: * Sin Cal *
Posts: 11,010
Trader Rating: 38 (100%+)
Default
Originally Posted by sir_thomas
Sometimes the o-rings get pinched and it sounds like the shock shaft o-rings are fine since you replaced them and still have the issue. I'd replace the outer shock cartridge o ring. If it's not that....then last thing to do is check plastic internal spacers and replace those...perhaps a bad mold.

I believe it's this....without looking it up in a manual.
http://www.amainhobbies.com/product_...ock-Seal-Set-4

Just to make sure........where is it leaking? Down the shaft or by the threads where it screws into the body?
It's leaking from the O ring area..the O rings are fine..it's the bushings that I think are the problem..one of the guys at my track had the same problem..
Oasis is offline  
Reply
Old 12-15-2013, 06:42 AM
  #8967  
Tech Master
iTrader: (33)
 
nickdawg18's Avatar
 
Join Date: Jul 2010
Location: Granite City, IL
Posts: 1,696
Trader Rating: 33 (100%+)
Default
Is everyone running saddles? Or are shorties the way to go?
nickdawg18 is offline  
Reply
Old 12-15-2013, 07:05 AM
  #8968  
Tech Master
iTrader: (90)
 
Join Date: Oct 2011
Location: Houston TX (formally Sou CA)
Posts: 1,220
Trader Rating: 90 (100%+)
Default
Originally Posted by iMarky
Do you guys use the shim for the kick plate for indoor clay track ?
Most people don't run the shim.

Check out the "spacer" field right next to the caster.
http://www.petitrc.com/setup/kyosho/...UltimaRB6.html
Kuya_Kimo is offline  
Reply
Old 12-15-2013, 09:18 AM
  #8969  
Tech Regular
 
Join Date: Dec 2008
Posts: 411
Default
Originally Posted by nickdawg18
Is everyone running saddles? Or are shorties the way to go?
Shorties are lighter and smaller which gives you more options with the weight distribution.
Chris-s is offline  
Reply
Old 12-15-2013, 09:54 AM
  #8970  
Tech Elite
iTrader: (2)
 
Razathorn's Avatar
 
Join Date: May 2009
Posts: 2,214
Trader Rating: 2 (100%+)
Default
I run saddles all the way back with the motor brace shaved since our track can become quite slick. Whatever I miss in performance when it's high bite (watered well), I make up for when its slick. Depends on your track conditions.
Razathorn is offline  
Reply

Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.