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 Tree14Likes
Reply
 
Thread Tools Search this Thread
Old 11-21-2012, 11:43 AM   #2746
Super Moderator
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,411
Trader Rating: 71 (100%+)
Default

Quote:
Originally Posted by desertracerdad View Post
Team tidbit... Buy the Carbon Composite gearbox (UMW504C). They are manufactured with more carbon/glass (to be stiffer), there is less shrink and the tolerances are better which allow the tranny & gears to run smoother.
With the new wing mounts on the 6 going through the tranny case I don't recall seeing this on this particular case. So my question is how are you making this work?
__________________
There is great need for a sarcasm font.

You never know when it will strike, but there comes a moment at work when you know that you just aren't going to do anything productive for the rest of the day.

Sometimes I post just to look at my avatar.
Kraig is offline   Reply With Quote
Old 11-21-2012, 11:48 AM   #2747
Tech Master
 
racer x 1's Avatar
 
Join Date: Dec 2003
Location: im 4rm a far away place called 1st
Posts: 1,825
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by goin2drt View Post
I have blue accessories.

Thats two of us lol! I grabbed the shocktower and will wait for the rest of the blk parts to come in.
__________________
Matt Bell
Mugen MRX5 Ae R5.2 X6^3 M11x All powered by Speedtech Rc
racer x 1 is offline   Reply With Quote
Old 11-21-2012, 12:19 PM   #2748
Tech Master
 
Yeti AS3's Avatar
 
Join Date: Jan 2010
Location: lockport,IL
Posts: 1,347
Trader Rating: 77 (100%+)
Default

Quote:
Originally Posted by Cpt.America View Post
I had no idea the new AE pistons were two hole pistons... What sized holes? they must be 54s or 53s!
Their box setup is 1.6mm 2 hole 35f, 30r I believe. Drill size is about a #52.
__________________
Hot Bodies D413
AE B5m

Haigh Designz -Custom Airbrushing
Leisure Hours Hobby and Raceway!!

Last edited by Yeti AS3; 11-21-2012 at 12:29 PM.
Yeti AS3 is offline   Reply With Quote
Old 11-21-2012, 12:27 PM   #2749
Super Moderator
 
Cpt.America's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,081
Trader Rating: 52 (100%+)
Default

Quote:
Originally Posted by Yeti AS3 View Post
Their box setup is 1.6mm 2 hole 35f, 30r I believe. Drill size is almost a #52.
hhm.. i can't imagine they would be generating any pack with that setup at all.
__________________
A big thanks to my sponsors:
- Fantom Racing - www.fantomracing.com -
- Fusion Graphix- www.fusiongraphix.com -
- RCSpecialties -
Cpt.America is offline   Reply With Quote
Old 11-21-2012, 01:14 PM   #2750
Tech Adept
 
Join Date: Jun 2011
Posts: 131
Default

I mainly run my 6 mid motor and on carpet with big jumps but can't wait to try it on dirt/rear motor.
I tried Ghea pistons and loved them but so far 2x1.4/3x1.3 was mainly for smooth tracks with hard landings, I wouldn't use that much pack on bumpy tracks, more something like 4 holes.
mojo tom is online now   Reply With Quote
Old 11-21-2012, 01:43 PM   #2751
Tech Master
 
cnelson3's Avatar
 
Join Date: Nov 2010
Location: Milwaukee, WI
Posts: 1,197
Trader Rating: 65 (100%+)
Default

Quote:
Originally Posted by Cpt.America View Post
hhm.. i can't imagine they would be generating any pack with that setup at all.
It's not all about "pack". The ae guys took their time with the big bores and did them right. U don't see anyone gluing holes shut like tebo did when the bb's came out for the rb5. There is a little room for improvement.
cnelson3 is offline   Reply With Quote
Old 11-21-2012, 01:46 PM   #2752
Tech Addict
 
Join Date: Jul 2009
Posts: 736
Trader Rating: 101 (99%+)
Default

Quote:
Originally Posted by Kraig View Post
With the new wing mounts on the 6 going through the tranny case I don't recall seeing this on this particular case. So my question is how are you making this work?
The new UMW 504C gearbox does have the wing mount screw hole molded into it. The older UMW 504B gear cases we used on RB5/RT5 do not...
__________________
~ Richard Watchorn ~
* Team Associated/Reedy Electronics * OCRC Raceway *
* Schelle Racing * CBuilt Designs * Complex Ink *
desertracerdad is offline   Reply With Quote
Old 11-21-2012, 01:51 PM   #2753
Super Moderator
 
Cpt.America's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,081
Trader Rating: 52 (100%+)
Default

Quote:
Originally Posted by cnelson3 View Post
It's not all about "pack". The ae guys took their time with the big bores and did them right. U don't see anyone gluing holes shut like tebo did when the bb's came out for the rb5. There is a little room for improvement.
So what other factors do you have when you compare or change number of holes, size of holes, and oil weight? You have static damping, (slow movement) and pack (fast movement). What else is there?
__________________
A big thanks to my sponsors:
- Fantom Racing - www.fantomracing.com -
- Fusion Graphix- www.fusiongraphix.com -
- RCSpecialties -
Cpt.America is offline   Reply With Quote
Old 11-21-2012, 02:19 PM   #2754
Tech Addict
 
JPKinsella's Avatar
 
Join Date: Jul 2009
Location: Washington
Posts: 544
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by jpcopeland1 View Post
I will be there tomorrow as well. Want to go the 4 hole 1.3mm route.
Quote:
Originally Posted by aloksatoor View Post
Go for it (By it I mean the excellent ghea pistons for the k cars absolute has them with 2 buck shipping). Found it awesome vs the stocks for handling and the cars super reactive as well but pillowy on the rougher stuff. I run pink/gold with 425/375. This was for a 60 plus day though, will go lighter in the winter arena when its colder a month from now.
Did a little testing yesterday with the Ghea pistons 4x1.3 ended up running the tapper down towards bottom of shock little more pack with faster rebound than with the tapper up or a flat Losi piston... Worked really good especialy for mod!! Ended up with losi 32.5wt up front 25wt in the rear white fronts reds rear....
__________________
AE B5M, Hot boddies D413, Kyosho RB6 mod, Orion ESC, Radio Post servos, Futaba 4pks
NOT HERE FOR A LONG TIME JUST A GOOD TIME!!!!!!!!!!
DON'T HACK ME BRO............
JPKinsella is offline   Reply With Quote
Old 11-21-2012, 02:36 PM   #2755
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by JPKinsella View Post
Did a little testing yesterday with the Ghea pistons 4x1.3 ended up running the tapper down towards bottom of shock little more pack with faster rebound than with the tapper up or a flat Losi piston... Worked really good especialy for mod!! Ended up with losi 32.5wt up front 25wt in the rear white fronts reds rear....
Think I ran mine taper down as well, oils pretty close as well I went a bit higher in the rear though. Car is pillowy and on rails . Full pack testing this weekend hopefully if the weather holds! Can't wait to get a full prac day in with the car only raced two days still
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco
aloksatoor is offline   Reply With Quote
Old 11-21-2012, 04:31 PM   #2756
Tech Elite
 
Join Date: Nov 2003
Location: Covington, La.
Posts: 3,585
Trader Rating: 50 (98%+)
Send a message via AIM to micrors4guy
Default

Quote:
Originally Posted by Cpt.America View Post
I had no idea the new AE pistons were two hole pistons... What sized holes? they must be 54s or 53s!
the ae pistons are 1.5, 1.6 1.7 all 2 hole.
__________________
Rob Jensen
Thanks to the following companies for their support in 2017: Team Associated, Maclan, Fierce R/C Solutions
micrors4guy is offline   Reply With Quote
Old 11-21-2012, 05:02 PM   #2757
Tech Master
 
Join Date: Oct 2011
Location: Houston TX (formally Sou CA)
Posts: 1,159
Trader Rating: 82 (100%+)
Default

Quote:
Originally Posted by micrors4guy View Post
the ae pistons are 1.5, 1.6 1.7 all 2 hole.
1.3 would be closest to 55's, but it's NOT that size.
__________________
"Tinkering with Toy Cars that go around in circles"
OCRC | Club R/C | Mike's Gulf Coast | Kyosho RB6 ZX6 MP9E
Kuya_Kimo is offline   Reply With Quote
Old 11-21-2012, 05:17 PM   #2758
Tech Master
 
cnelson3's Avatar
 
Join Date: Nov 2010
Location: Milwaukee, WI
Posts: 1,197
Trader Rating: 65 (100%+)
Default

Quote:
Originally Posted by JPKinsella View Post
Did a little testing yesterday with the Ghea pistons 4x1.3 ended up running the tapper down towards bottom of shock little more pack with faster rebound than with the tapper up or a flat Losi piston... Worked really good especialy for mod!! Ended up with losi 32.5wt up front 25wt in the rear white fronts reds rear....
Where do they sell these? Is the whole piston tapered or just the wholes?
cnelson3 is offline   Reply With Quote
Old 11-22-2012, 11:19 AM   #2759
Super Moderator
 
Cpt.America's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,081
Trader Rating: 52 (100%+)
Default

Happy Thanksgiving to all my fellow members of the Red Army!
__________________
A big thanks to my sponsors:
- Fantom Racing - www.fantomracing.com -
- Fusion Graphix- www.fusiongraphix.com -
- RCSpecialties -
Cpt.America is offline   Reply With Quote
Old 11-22-2012, 11:39 AM   #2760
Moderator
 
Posvar's Avatar
 
Join Date: Nov 2009
Location: North Carolina by way of SoCal!
Posts: 4,597
Trader Rating: 462 (100%+)
Default

Thanks Brandon! You too!
__________________
Having fun with my 9 year old and running Kyosho cars!
Posvar 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 22955 Today 12:08 AM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15015 08-29-2017 12:36 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: 2 (0 members and 2 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 06:12 AM.


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