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 01-01-2013, 05:24 PM   #3781
Tech Elite
 
t8rtot's Avatar
 
Join Date: Nov 2008
Posts: 2,008
Trader Rating: 14 (94%+)
Default

Quote:
Originally Posted by b121774 View Post
aka diana?
Haha foam, the swype function on my phone doesn't airways cooperate.
__________________
Sfida
t8rtot is offline   Reply With Quote
Old 01-01-2013, 06:04 PM   #3782
Tech Champion
 
tony montana's Avatar
 
Join Date: Aug 2002
Location: Leonardtown Md.
Posts: 6,108
Trader Rating: 65 (100%+)
Default

JCI3348Y - JConcepts Mono 2.2 Rear Wheel w/12mm Hex so these will work with the rb6?
__________________
K.C. Guy. Team Xray - rc america
tony montana is offline   Reply With Quote
Old 01-01-2013, 06:06 PM   #3783
Tech Master
 
Join Date: Dec 2010
Location: Sonora, California
Posts: 1,026
Trader Rating: 72 (100%+)
Default

Quote:
Originally Posted by tony montana View Post
JCI3348Y - JConcepts Mono 2.2 Rear Wheel w/12mm Hex so these will work with the rb6?
I use those but a serrated wheel nut is a must.
b121774 is offline   Reply With Quote
Old 01-01-2013, 06:07 PM   #3784
Tech Master
 
Join Date: Dec 2010
Location: Sonora, California
Posts: 1,026
Trader Rating: 72 (100%+)
Default

Quote:
Originally Posted by t8rtot View Post
Haha foam, the swype function on my phone doesn't airways cooperate.
airways? guess it doesnt, lol
b121774 is offline   Reply With Quote
Old 01-01-2013, 06:08 PM   #3785
Tech Champion
 
tony montana's Avatar
 
Join Date: Aug 2002
Location: Leonardtown Md.
Posts: 6,108
Trader Rating: 65 (100%+)
Default

and these for the fronts? JConcepts Mono 2.2 Front Wheel w/12mm Hex (Yellow) (4) (B4.1/RB5)
[JCI3347Y]
__________________
K.C. Guy. Team Xray - rc america
tony montana is offline   Reply With Quote
Old 01-01-2013, 06:13 PM   #3786
Tech Master
 
Join Date: Dec 2010
Location: Sonora, California
Posts: 1,026
Trader Rating: 72 (100%+)
Default

Quote:
Originally Posted by tony montana View Post
and these for the fronts? JConcepts Mono 2.2 Front Wheel w/12mm Hex (Yellow) (4) (B4.1/RB5)
[JCI3347Y]
Yes, I use the same on both my b4 and rb6
b121774 is offline   Reply With Quote
Old 01-01-2013, 06:18 PM   #3787
Super Moderator
 
Cpt.America's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,083
Trader Rating: 52 (100%+)
Default

Quote:
Originally Posted by t8rtot View Post
Raising roll center would increase side bite, correct? Hmm
Incorrect. Raising the roll center increases roll resistance which provides less traction gain on that end of the car, whenever the car is rolling. Wider track = higher RC = less traction while rolling (throughout the corner).
__________________
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 01-01-2013, 07:22 PM   #3788
Tech Apprentice
 
Join Date: Jun 2010
Posts: 66
Default Spur/Pinion Questions

Based on the suggestion of some guys 10-20 pages back I am going to go with 69/34 (spur/pinion) in stock class.

Since Kyosho does not seem to make a 69 do you recommend I go Kimbrough or JC Silent Spur Gear? Other then buying Associate slipper pads is there anything else I need?

For a pinion gear... who do you recommend I go with?

Thanks everyone!
Kopanas is offline   Reply With Quote
Old 01-01-2013, 07:26 PM   #3789
Tech Master
 
Join Date: Dec 2010
Location: Sonora, California
Posts: 1,026
Trader Rating: 72 (100%+)
Default

gearing in stock is not always the same from motor to motor. I run a Reedy Sonic 17.5, endbell timed to the middle(pretty much MAXED) of the silver motor screw and am running 27/72. Seems to have the best balance of torque/rpm. Its a rocket. Thats in my b4 though but should be the same for the rb6
b121774 is offline   Reply With Quote
Old 01-01-2013, 07:54 PM   #3790
Tech Master
 
ByteStream's Avatar
 
Join Date: Jan 2010
Location: 5280 Raceway
Posts: 1,142
Trader Rating: 2 (100%+)
Default

Just picked one of these kits up for a little change of pace.

The track is indoor - clay - 70x40ft. I plan to run the kit box stock until I get a feel for it, then make adjustments/upgrades as necessary.

Couple of questions:

1. Mid vs. Rear - what are most people going with on this type of surface? I've seen indoor track setups running mid, but most clay tracks running rear. Going to be running Gold Barcodes front/rear as it is the popular choice at the track.

2. Gearing - 13.5 blinky/boosted gearing - Reedy 13.5 - what is a good starting point for both? Looking to pick up a range of pinons. 76T is the stock spur right? I have no problem tuning to temp, just looking for a start.

3. I've read some posts that mention getting the rear aluminum suspension holders, but I've seen narrow and wide .. what is the stock replacement?

Thanks in advance.
__________________
RCAmerica | Xray | Hudy | KO Propo | Hobbywing HWNA | R1Wurks | BSR Tires
5280 Raceway - www.5280raceway.com
MILE HIGH INDOOR CHAMPS April 20-23rd 2017 @ www.milehighindoorchamps.com
ByteStream is offline   Reply With Quote
Old 01-01-2013, 08:24 PM   #3791
Tech Master
 
silvalis's Avatar
 
Join Date: Aug 2011
Location: Brisbane
Posts: 1,545
Trader Rating: 29 (100%+)
Default

Quote:
Originally Posted by Kopanas View Post
Based on the suggestion of some guys 10-20 pages back I am going to go with 69/34 (spur/pinion) in stock class.

Since Kyosho does not seem to make a 69 do you recommend I go Kimbrough or JC Silent Spur Gear? Other then buying Associate slipper pads is there anything else I need?

For a pinion gear... who do you recommend I go with?

Thanks everyone!
kimborough. Just add slipper pads, K plates are fine.
I went 69/30 reedy sonic @ 40 deg endbell
__________________
2013 QLD Champion Potato Sack Racer

Last edited by silvalis; 01-01-2013 at 09:03 PM.
silvalis is offline   Reply With Quote
Old 01-01-2013, 08:35 PM   #3792
Tech Elite
 
Mxer59's Avatar
 
Join Date: Jul 2011
Location: Bakersfield, California
Posts: 2,671
Trader Rating: 114 (100%+)
Default

Quote:
Originally Posted by silvalis View Post
kimborough.
I went 69/30 reedy sonic @ 40 deg endbell
I really liked 72/31-30 with my Tekin gen2 30deg end bell
__________________
5ive T (Bartoline 28.5cc, Bartoline Pipe, Team Chase)
Futaba 4pls
Team Chase 2015
Rd. 2 TQ-1st--Rd. 3 3rd
Mxer59 is offline   Reply With Quote
Old 01-01-2013, 09:15 PM   #3793
Tech Champion
 
lbckevin's Avatar
 
Join Date: Jan 2003
Location: Orange County, CA
Posts: 5,484
Trader Rating: 89 (99%+)
Default

I gear 72/33 and my speed is great.
__________________
Kevin Smith
Hobbywing * Pro-Line * MIP * Paint Monster
lbckevin is offline   Reply With Quote
Old 01-01-2013, 09:26 PM   #3794
Tech Master
 
mdowney's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jun 2010
Location: Seattle, WA
Posts: 1,562
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by Kopanas View Post
Based on the suggestion of some guys 10-20 pages back I am going to go with 69/34 (spur/pinion) in stock class.

Since Kyosho does not seem to make a 69 do you recommend I go Kimbrough or JC Silent Spur Gear? Other then buying Associate slipper pads is there anything else I need?

For a pinion gear... who do you recommend I go with?

Thanks everyone!
The JConcepts Sikent Speed spurs are nice because they're precision machined for perfect balance but I'm not convinced that this is much of a benefit to justify the added expense.

I run 69/31 with a Trinity D3.5 with timing maxed and I'm happy with it. But I've also switched to running the Avid Triad spur with Avid top shaft. They make a machined 69T spur as well. My car has never felt better but I'm no expert.

Just experiment with pinion sizes to find the feel you like best. Bigger pinion will give you more top end and will make your motor run a little hotter so be sure to temp it after a few laps.
__________________
Mike Downey
--
I try all of the RC kits and usually race at Tacoma RC Raceway
mdowney is offline   Reply With Quote
Old 01-01-2013, 10:02 PM   #3795
Tech Master
 
Troy Mckune's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2009
Location: Vancouver, WA
Posts: 1,680
Trader Rating: 38 (100%+)
Default

Quote:
Originally Posted by tony montana View Post
and these for the fronts? JConcepts Mono 2.2 Front Wheel w/12mm Hex (Yellow) (4) (B4.1/RB5)
[JCI3347Y]
Having come from a B4.1 to an RB6. I run the Jconcepts mono wheels. Both fronts and rears work well. The fronts have an almost identical offset but the wheels have a deeper hex in them. I have had them bind a little with the stock RB6 axles. I just run a Tamiya 1/2mm touring car spacer. I am now switching to the RB5 axles with hexes as most of the local team guys (Joe Pillars, Shuan Dunlap, and Andy Dibrino) have done. The rears have about a 1/2mm deeper offset. So if you do not space them the rear will be about 1mm narrower than with Kyosho wheels.

As far as stock motor gearing. I usually gear 33 or 34/72 using associated or now Avid triad gears. I run full timing on a D3.5.

Troy
__________________
Mckune Design / facebook page / RC America / XRAY / Lunsford Racing
Mckune Design is a custom manufacturer of CNC machined carbon fiber, G10, & composite laminate parts for RC, Aerospace, medical, and high tech industries.
Troy Mckune 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: 3 (1 members and 2 guests)
albertv78
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 08:49 PM.


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