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

Community
Wiki Posts
Search
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

Thread Tools
 
Search this Thread
 
Old 03-07-2013, 04:11 PM
  #5551  
Tech Lord
Thread Starter
iTrader: (52)
 
Cpt.America's Avatar
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,085
Trader Rating: 52 (100%+)
Default

Originally Posted by ChadBlanton
I'm thinking of turning the steering rack backwards to "calm" the car (it's pretty pointy) this mod pushes the ballstuds back towards the rear of the car ... My question is, why are some guys running a 1mm spacer under the ballstuds on the steering rack? This pushes the studs even further forwards on the car, so wouldn't that make it even more darty?? or am I confused on the whole Ackerman theory
I haven't tested too much with this, but I did measure on my setup station... and the difference in ackerman angle (on a stock facing steering rack) between 0 washers and 1mm washers, was exactly 0. No measurable difference in ackerman angle. Not sure what that means ... it is what it is.

don't forget, you have an easy way to play with ackerman, and that is front toe-in or toe-out. I usually run dead 0, or .5 out. ... so play with 1 or even 2 out and see if that calms the car down. Eventually you start to really develop a slip angle in the front of the car, taking away steering. At some point I will have time to measure ackerman angle with different shims on the rack, and I can publish them. "when I have time" is the key
Cpt.America is offline  
Old 03-07-2013, 05:06 PM
  #5552  
Tech Regular
iTrader: (1)
 
Join Date: Oct 2009
Posts: 400
Trader Rating: 1 (100%+)
Default

thanks cpt,

anyone else running their steering rack backwards?
ChadBlanton is offline  
Old 03-07-2013, 05:09 PM
  #5553  
Moderator
iTrader: (470)
 
Posvar's Avatar
 
Join Date: Nov 2009
Location: North Carolina by way of SoCal!
Posts: 4,785
Trader Rating: 470 (100%+)
Default

Mine is backwards and I like it.
Posvar is offline  
Old 03-07-2013, 06:05 PM
  #5554  
Tech Addict
iTrader: (7)
 
RShockley's Avatar
 
Join Date: Oct 2011
Location: Fort Worth, TX
Posts: 530
Trader Rating: 7 (100%+)
Default

Pic of the buggies all cleaned up and ready to go for the first round of qualifying at last weekends Bigfoot race here at Mike's.




Last edited by RShockley; 03-08-2013 at 11:13 AM.
RShockley is offline  
Old 03-07-2013, 06:08 PM
  #5555  
Tech Lord
Thread Starter
iTrader: (52)
 
Cpt.America's Avatar
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,085
Trader Rating: 52 (100%+)
Default

Love the colors...
Cpt.America is offline  
Old 03-07-2013, 06:10 PM
  #5556  
Tech Elite
iTrader: (43)
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,152
Trader Rating: 43 (100%+)
Default

Originally Posted by RShockley
Pic of the buggies all cleaned up and ready to go for the first round of qualifying at last weekends Bigfoot race here at Mike's.



Have the same cars as well love them to death xb4 and rb6.
aloksatoor is offline  
Old 03-07-2013, 09:24 PM
  #5557  
Tech Master
iTrader: (66)
 
cnelson3's Avatar
 
Join Date: Nov 2010
Location: Milwaukee, WI
Posts: 1,213
Trader Rating: 66 (100%+)
Default

Originally Posted by Posvar
Mine is backwards and I like it.
I've had good luck with it backwards as well. If u hold to steering racks together ( one forward and one back wards with the hinge mounting holes lined up perfectly) u can visibly see a difference. I tried it backwards and never put it back. I hate to admit this but I finally have my buggy handling similarly to my old rb5 with a +10 mm chassis. It's fast and forgiving. Little more initial and mid corner steering tho.
cnelson3 is offline  
Old 03-08-2013, 10:53 AM
  #5558  
Tech Regular
iTrader: (42)
 
Join Date: May 2009
Posts: 428
Trader Rating: 42 (100%+)
Default

has anyone tried the MIP Diff?
noworries is offline  
Old 03-08-2013, 11:06 AM
  #5559  
Moderator
iTrader: (470)
 
Posvar's Avatar
 
Join Date: Nov 2009
Location: North Carolina by way of SoCal!
Posts: 4,785
Trader Rating: 470 (100%+)
Default

Originally Posted by RShockley
Pic of the buggies all cleaned up and ready to go for the first round of qualifying at last weekends Bigfoot race here at Mike's.




I can't see the pics! Have they been deleted?
Posvar is offline  
Old 03-08-2013, 11:13 AM
  #5560  
Tech Addict
iTrader: (7)
 
RShockley's Avatar
 
Join Date: Oct 2011
Location: Fort Worth, TX
Posts: 530
Trader Rating: 7 (100%+)
Default

Originally Posted by Posvar
I can't see the pics! Have they been deleted?
Fixed it.
RShockley is offline  
Old 03-08-2013, 12:15 PM
  #5561  
Moderator
iTrader: (470)
 
Posvar's Avatar
 
Join Date: Nov 2009
Location: North Carolina by way of SoCal!
Posts: 4,785
Trader Rating: 470 (100%+)
Default

Thanks
Posvar is offline  
Old 03-08-2013, 12:42 PM
  #5562  
Tech Regular
iTrader: (2)
 
Join Date: Oct 2003
Posts: 315
Trader Rating: 2 (100%+)
Default

Originally Posted by noworries
has anyone tried the MIP Diff?
I wonder the same. I bought one, but the original one is still so smooth i havnt felt the need to try the MIP yet. Anyone else tried oone yet?
Dale.0 is offline  
Old 03-08-2013, 12:45 PM
  #5563  
Tech Regular
iTrader: (1)
 
Join Date: Oct 2009
Posts: 400
Trader Rating: 1 (100%+)
Default

my diff is lasting forever too ... pretty awesome stock diff!
ChadBlanton is offline  
Old 03-08-2013, 01:52 PM
  #5564  
Tech Elite
iTrader: (43)
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,152
Trader Rating: 43 (100%+)
Default

I have the mip diff outdrives the whole kit for the rear. Longevity is more than the stock swing shafts at least. The diffs similar to the stock one. The hexes are definitely better. The wear seems to be better than the stockers for sure. I will keep running mine not going back to stock.
aloksatoor is offline  
Old 03-08-2013, 02:10 PM
  #5565  
Tech Regular
iTrader: (2)
 
Join Date: Oct 2003
Posts: 315
Trader Rating: 2 (100%+)
Default

What is the psrt number for the shock ends?
Dale.0 is offline  


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.