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 01-02-2013, 09:00 AM   #3811
Tech Regular
 
Join Date: Oct 2009
Posts: 388
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by KSimmonds View Post
I've always used the method shown in this video.
many thanks!
ChadBlanton is offline   Reply With Quote
Old 01-02-2013, 09:49 AM   #3812
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 KSimmonds View Post
The only piece I have broken is the rear camber plate (where the rear inner ball stud attaches). I have seen this piece broken on 3 separate cars (and yes- all 3 were using the set screws on either side of the ball stud), so that might be a good part to carry as a spare as well. I have since installed the exotek aluminum version.
That piece is called the upper rear bulkhead, and there is a design issue where the thickness of the plastic which the ballstud threads through, is too thin. From what I have heard is that there was already a running mold change on that part, and its thicker now, however I haven't confirmed with my own eyes.

Having said that, it would be worth knowing how much heavier the alu piece is. The car is already over weight, and I myself wouldn't want to add any more.

The only people I have seen break this part, were all running the outer hole where there is the least amount of supporting material. Running the middle hole with both supporting set screws seems to be pretty solid
__________________
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 01-02-2013, 09:56 AM   #3813
Tech Elite
 
t8rtot's Avatar
 
Join Date: Nov 2008
Posts: 2,008
Trader Rating: 14 (94%+)
Default

Quote:
Originally Posted by KSimmonds View Post
I've always used the method shown in this video.
this ^^ BUT keep the bleeder hole facing up!

putting the piston in first (at your desired rebound) is key
__________________
Sfida
t8rtot is offline   Reply With Quote
Old 01-02-2013, 10:07 AM   #3814
Tech Master
 
Join Date: Apr 2006
Posts: 1,116
Trader Rating: 18 (100%+)
Default

Quote:
Originally Posted by Cpt.America View Post
That piece is called the upper rear bulkhead, and there is a design issue where the thickness of the plastic which the ballstud threads through, is too thin. From what I have heard is that there was already a running mold change on that part, and its thicker now, however I haven't confirmed with my own eyes.

Having said that, it would be worth knowing how much heavier the alu piece is. The car is already over weight, and I myself wouldn't want to add any more.

The only people I have seen break this part, were all running the outer hole where there is the least amount of supporting material. Running the middle hole with both supporting set screws seems to be pretty solid
I didn't actually weigh the 2 pieces when I replaced it, but the way the Exotek part is constructed I can't believe it's heavy enough to impact performance in a negative way.

I only run mod so weight hasn't been a large factor in my thinking, but I can certainly understand that being something to consider in the stock class.
__________________
Kyle Simmonds | RB6 | FS2SP | TKI3
KSimmonds is offline   Reply With Quote
Old 01-02-2013, 10:09 AM   #3815
Tech Master
 
Join Date: Apr 2006
Posts: 1,116
Trader Rating: 18 (100%+)
Default

Quote:
Originally Posted by t8rtot View Post
this ^^ BUT keep the bleeder hole facing up!

putting the piston in first (at your desired rebound) is key

I do mine exactly like the video shows- even keeping the groove toward the bottom once the cartridge is almost all the way in. These are still emulsion shocks so air is going to be a component in the end.
__________________
Kyle Simmonds | RB6 | FS2SP | TKI3
KSimmonds is offline   Reply With Quote
Old 01-02-2013, 10:27 AM   #3816
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 KSimmonds View Post
I didn't actually weigh the 2 pieces when I replaced it, but the way the Exotek part is constructed I can't believe it's heavy enough to impact performance in a negative way.

I only run mod so weight hasn't been a large factor in my thinking, but I can certainly understand that being something to consider in the stock class.
Weight affects more than just acceleration... It affects all aspects of handling, including direction changing and braking. The car is already heavy, and it all adds up.
__________________
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 01-02-2013, 10:31 AM   #3817
Tech Master
 
Join Date: Apr 2006
Posts: 1,116
Trader Rating: 18 (100%+)
Default

Quote:
Originally Posted by Cpt.America View Post
Weight affects more than just acceleration... It affects all aspects of handling, including direction changing and braking. The car is already heavy, and it all adds up.
I certainly agree with that. I'm extremely happy with the way my car handles as I have it set up for the tracks in my area. Next time I rebuild, I'll weigh the stock piece with the set screws vs. the Exotek part and post my findings. (unless someone beats me to it!)
__________________
Kyle Simmonds | RB6 | FS2SP | TKI3
KSimmonds is offline   Reply With Quote
Old 01-02-2013, 10:42 AM   #3818
Tech Master
 
Join Date: Apr 2006
Posts: 1,116
Trader Rating: 18 (100%+)
Default

While I can't confirm the weight of 10 grams listed on the Exotek site for their piece is accurate, this is what my scale shows for the stock piece with all 4 set screws on either side of where the ball stud would mount.
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-stock.jpg  
__________________
Kyle Simmonds | RB6 | FS2SP | TKI3
KSimmonds is offline   Reply With Quote
Old 01-02-2013, 10:49 AM   #3819
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 KSimmonds View Post
While I can't confirm the weight of 10 grams listed on the Exotek site for their piece is accurate, this is what my scale shows for the stock piece with all 4 set screws on either side of where the ball stud would mount.
interesting
__________________
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 01-02-2013, 10:55 AM   #3820
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

nice! I ran 4 caster in fronts and now I like it more than before!! The high speed on power steering is INSANE!! Makes me think im driving my 1/8 nitro buggy hehehe. What antisquat are people running? I asked before as well but dint get any replies. The setup sheets don't mention it right?
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco
aloksatoor is offline   Reply With Quote
Old 01-02-2013, 11:08 AM   #3821
Tech Regular
 
pekow91's Avatar
 
Join Date: May 2012
Location: Bay Area, CA
Posts: 433
Trader Rating: 45 (100%+)
Default

Quote:
Originally Posted by KSimmonds View Post
While I can't confirm the weight of 10 grams listed on the Exotek site for their piece is accurate, this is what my scale shows for the stock piece with all 4 set screws on either side of where the ball stud would mount.
That's good to know. I have gone through at least 2 different bulkheads (with the set screws in) and I just ordered the Exotek one.
__________________
Kyosho RB6 | Kyosho MP9 TKI3E | Xray XB4
pekow91 is offline   Reply With Quote
Old 01-02-2013, 12:14 PM   #3822
Tech Elite
 
t8rtot's Avatar
 
Join Date: Nov 2008
Posts: 2,008
Trader Rating: 14 (94%+)
Default

we forget that it being aluminum or any metal doesn't automatically make it heavier. most often they can make the parts smaller (or with less reinforcement) because the material is stronger...
__________________
Sfida
t8rtot is offline   Reply With Quote
Old 01-02-2013, 01:22 PM   #3823
Tech Regular
 
Join Date: May 2009
Posts: 385
Trader Rating: 38 (100%+)
Default Mid Motor RB6

Any thoughts out there that a mid Motor drives similar to what a TC does? I have yrs in TC but completely new to RB6 and have yet to drive it. thank you
noworries is offline   Reply With Quote
Old 01-02-2013, 01:34 PM   #3824
Super Moderator
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,393
Trader Rating: 71 (100%+)
Default

Quote:
Originally Posted by t8rtot View Post
we forget that it being aluminum or any metal doesn't automatically make it heavier. most often they can make the parts smaller (or with less reinforcement) because the material is stronger...
The only thing I would be worried about is now you are making that end of the car more rigid which may cause traction issues. Which might be good or bad depending on what type of track you run on, Yes/No?

Curious, how much are you trimming the wings down? I guess I am looking at the stock wing that came with the kit if you haven't changed it out already.
__________________
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 01-02-2013, 01:37 PM   #3825
Super Moderator
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,393
Trader Rating: 71 (100%+)
Default

Quote:
Originally Posted by MBUCK View Post
Any thoughts out there that a mid Motor drives similar to what a TC does? I have yrs in TC but completely new to RB6 and have yet to drive it. thank you
I haven't run mid motor but remember you have a 2wd vehicle versus a 4wd vehicle and they would drive different.
__________________
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
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 (0 members and 3 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 06:03 AM.


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