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

Like Tree42Likes

Kyosho Ultima RB6 & RB6.6 Car Thread

    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

Reply

Old 11-02-2015, 12:12 PM
  #12676  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default



This is with a lightweight shorty pack....
symmetricon is offline  
Reply With Quote
Old 11-02-2015, 12:16 PM
  #12677  
Tech Addict
iTrader: (9)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 546
Trader Rating: 9 (100%+)
Default

Have mine laid out the same way but this past weekend I moved the battery back under the waterfall almost against the motor. Made a world of difference for me. Local track gets really slick by the end of the day. Plus it's getting cold.

Would love to see some center of gravity measurements.
oPAULo is offline  
Reply With Quote
Old 11-02-2015, 12:18 PM
  #12678  
Tech Addict
iTrader: (9)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 546
Trader Rating: 9 (100%+)
Default

Originally Posted by symmetricon View Post


This is with a lightweight shorty pack....
HOLY SMOKES!! That is freakin sweet!
oPAULo is offline  
Reply With Quote
Old 11-02-2015, 12:19 PM
  #12679  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default



Don't mind my rats nest or wires, this was when I first built the car battery inline with the same lightweight pack. ...
symmetricon is offline  
Reply With Quote
Old 11-02-2015, 12:21 PM
  #12680  
Regional Moderator
iTrader: (13)
 
RobsRacin's Avatar
 
Join Date: Jul 2014
Location: CT
Posts: 895
Trader Rating: 13 (100%+)
Default

are those the G Force scales? I want to get a set
RobsRacin is offline  
Reply With Quote
Old 11-02-2015, 12:24 PM
  #12681  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default

Originally Posted by RobsRacin View Post
are those the G Force scales? I want to get a set
It's actually the skyrc scale, but they are exactly the same...
symmetricon is offline  
Reply With Quote
Old 11-02-2015, 12:38 PM
  #12682  
Tech Addict
iTrader: (9)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 546
Trader Rating: 9 (100%+)
Default

Originally Posted by symmetricon View Post


Don't mind my rats nest or wires, this was when I first built the car battery inline with the same lightweight pack. ...
That's pretty much my layout but I have the front battery strap the other way with a foam block.
What keeps the battery from moving side to side when you reverse the strap like that?

Seems like I've read 60/40 weight balance somewhere before.
I would think you could measure wheelbase and draw a line at 40% in front of the rear axles and the car should balance on that point.
oPAULo is offline  
Reply With Quote
Old 11-02-2015, 01:01 PM
  #12683  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default

Originally Posted by oPAULo View Post
That's pretty much my layout but I have the front battery strap the other way with a foam block.
What keeps the battery from moving side to side when you reverse the strap like that?

Seems like I've read 60/40 weight balance somewhere before.
I would think you could measure wheelbase and draw a line at 40% in front of the rear axles and the car should balance on that point.
The waterfall kept the battery from moving side to side.. since that photo I've changed the battery layout, I'll post a pick when I get my car converted back....
symmetricon is offline  
Reply With Quote
Old 11-02-2015, 03:43 PM
  #12684  
Tech Regular
iTrader: (5)
 
GIHOSU's Avatar
 
Join Date: Jan 2012
Location: Murdertown, USA
Posts: 276
Trader Rating: 5 (100%+)
Default

Originally Posted by RobsRacin View Post
are those the G Force scales? I want to get a set
Yes you do, it rocks...

I would corner balance my cat if she would just stay
GIHOSU is offline  
Reply With Quote
Old 11-03-2015, 04:39 PM
  #12685  
Tech Champion
iTrader: (96)
 
whitrzac's Avatar
 
Join Date: May 2008
Location: WI
Posts: 5,789
Trader Rating: 96 (100%+)
Default

Opinions on the avid triad slipper setup?

6.5, foam tire, carpet.

Traction is never an issue, not grenading the gearbox is.
whitrzac is offline  
Reply With Quote
Old 11-03-2015, 05:22 PM
  #12686  
Tech Addict
iTrader: (9)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 546
Trader Rating: 9 (100%+)
Default

Originally Posted by whitrzac View Post
Opinions on the avid triad slipper setup?

6.5, foam tire, carpet.

Traction is never an issue, not grenading the gearbox is.
I run it on 2 cars. Love it. Many runs between service. Holds the setting a long time. Doesn't fade in a 10 minute main.
Sometimes medium traction but usually low traction though so....ya.

I do honestly believe the MIP pucks make the drivetrain last longer though. Only wasted tranny gears one time and that was after the diff got crunchy and I re-used all the gears. Right at 100 runs. Now I replace all the gears with a diff rebuild and set it and forget it.
oPAULo is offline  
Reply With Quote
Old 11-03-2015, 08:09 PM
  #12687  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default



Light weight battery in line all the back against the motor...
symmetricon is offline  
Reply With Quote
Old 11-03-2015, 08:10 PM
  #12688  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default

symmetricon is offline  
Reply With Quote
Old 11-03-2015, 08:42 PM
  #12689  
Tech Elite
iTrader: (27)
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,857
Trader Rating: 27 (100%+)
Default

Originally Posted by symmetricon View Post


Light weight battery in line all the back against the motor...
Haha, just noticed I'm not cross balanced... just put it back and didn't adjust shock preload lol.
symmetricon is offline  
Reply With Quote
Old 11-03-2015, 10:50 PM
  #12690  
Tech Master
iTrader: (66)
 
cnelson3's Avatar
 
Join Date: Nov 2010
Location: Milwaukee, WI
Posts: 1,213
Trader Rating: 66 (100%+)
Default

Does anyone know the antisquat degree if the rear toe block had no spacer below it and the front had .5mm shim?
cnelson3 is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service