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 Tree25Likes
Reply
 
Thread Tools Search this Thread
Old 11-06-2014, 09:54 PM   #11056
Tech Master
 
Join Date: Feb 2011
Location: Sutter, California
Posts: 1,186
Trader Rating: 82 (100%+)
Default

Done. 737 pages down.
dpcardoza is offline   Reply With Quote
Old 11-06-2014, 10:55 PM   #11057
Tech Master
 
3srcracing's Avatar
 
Join Date: Nov 2011
Location: Utah
Posts: 1,765
Trader Rating: 25 (100%+)
Default

Edit.

Nevermind I figured it out.

Last edited by 3srcracing; 11-07-2014 at 10:33 AM.
3srcracing is offline   Reply With Quote
Old 11-08-2014, 12:47 PM   #11058
Tech Elite
 
tonyv2382's Avatar
 
Join Date: Nov 2009
Location: Queens, NYC
Posts: 3,750
Trader Rating: 64 (100%+)
Send a message via Yahoo to tonyv2382
Default

Whats up guys. Will be running this car on carpet. Just assembled a gear diff and it seems to be sweating a bit. Ive read thebdiff has a few leak issues. Hows the ball diff holding up on carpet I know the K Ball diffs are pretty awesome and never had a problen on dirt. I do have ceramic and carbide balls to play with.
tonyv2382 is offline   Reply With Quote
Old 11-08-2014, 01:17 PM   #11059
Tech Master
 
Join Date: Feb 2011
Location: Sutter, California
Posts: 1,186
Trader Rating: 82 (100%+)
Default

Quote:
Originally Posted by tonyv2382 View Post
Whats up guys. Will be running this car on carpet. Just assembled a gear diff and it seems to be sweating a bit. Ive read thebdiff has a few leak issues. Hows the ball diff holding up on carpet I know the K Ball diffs are pretty awesome and never had a problen on dirt. I do have ceramic and carbide balls to play with.
Can't speak to much for the ball diff but so far it's been flawless for a couple weeks. I tried the gear diff and found it leaked like crazy. Lasted about a race then leaked everywhere and made a huge mess. Threw it in the part box and never looked back.
dpcardoza is offline   Reply With Quote
Old 11-08-2014, 02:27 PM   #11060
Tech Elite
 
tonyv2382's Avatar
 
Join Date: Nov 2009
Location: Queens, NYC
Posts: 3,750
Trader Rating: 64 (100%+)
Send a message via Yahoo to tonyv2382
Default

Quote:
Originally Posted by dpcardoza View Post
Can't speak to much for the ball diff but so far it's been flawless for a couple weeks. I tried the gear diff and found it leaked like crazy. Lasted about a race then leaked everywhere and made a huge mess. Threw it in the part box and never looked back.
Ok cool. This is on carpet?
tonyv2382 is offline   Reply With Quote
Old 11-08-2014, 06:01 PM   #11061
Tech Master
 
Join Date: Feb 2011
Location: Sutter, California
Posts: 1,186
Trader Rating: 82 (100%+)
Default

Quote:
Originally Posted by tonyv2382 View Post
Ok cool. This is on carpet?
No, high bite indoor clay. Not saying the gear diff won't work for ya. I just could never get it to seal properly. It lasted 1 6min run and was nearly empty by the end. Took it apart and changed gaskets, same result.
dpcardoza is offline   Reply With Quote
Old 11-08-2014, 07:22 PM   #11062
Tech Elite
 
tonyv2382's Avatar
 
Join Date: Nov 2009
Location: Queens, NYC
Posts: 3,750
Trader Rating: 64 (100%+)
Send a message via Yahoo to tonyv2382
Default

Quote:
Originally Posted by dpcardoza View Post
No, high bite indoor clay. Not saying the gear diff won't work for ya. I just could never get it to seal properly. It lasted 1 6min run and was nearly empty by the end. Took it apart and changed gaskets, same result.
Yup. All I did was assemble it and it isnt sealing. Noticed it starting to sweat around where the two halves meet. Hopefully kyosho fixes this issue in the near future.
tonyv2382 is offline   Reply With Quote
Old 11-08-2014, 07:33 PM   #11063
Tech Elite
 
Potoczak's Avatar
 
Join Date: Oct 2009
Location: PA
Posts: 3,607
Trader Rating: 112 (100%+)
Default

Ok... So just looking for a general answer/opinion. If I'm looking for more foward bite coming out of turns what would I be looking at to change first and so on. Running in rear motor 17.5.
__________________
Pete Potoczak

Home entertainment specialist
Secure Technologies/ www.stiworldwide.com
Potoczak is offline   Reply With Quote
Old 11-08-2014, 07:40 PM   #11064
Tech Addict
 
Join Date: Dec 2007
Posts: 622
Trader Rating: 37 (100%+)
Default

Quote:
Originally Posted by Potoczak View Post
Ok... So just looking for a general answer/opinion. If I'm looking for more foward bite coming out of turns what would I be looking at to change first and so on. Running in rear motor 17.5.
More rear toe
chrisjohns is offline   Reply With Quote
Old 11-09-2014, 02:04 AM   #11065
Tech Regular
 
Join Date: Oct 2010
Posts: 326
Default

Quote:
Originally Posted by tonyv2382 View Post
Yup. All I did was assemble it and it isnt sealing. Noticed it starting to sweat around where the two halves meet. Hopefully kyosho fixes this issue in the near future.
I've been running a gear diff (7k oil) at OCRC with great success.

To prevent leaking I used these gaskets http://www.kyoshoamerica.com/Diff-Ca...-S_p_4659.html and I put green slim on them to help seal the diff. Also put some green slim in the screw holes, and be sure not to over tighten the diff screws, I tightened them a little at a time in a cross pattern. If you over tighten the screws it will distort the plastic and diff will leak.

Also don't forget these o rings, http://www.kyoshoamerica.com/Silicon...15_p_4307.html for the outdrives.

The last thing is do not use too much diff fluid. I fill mine just below the cross shafts, basically put a few drops in each corner, work it in, and the level should be just at or below the cross shafts.

Hope this helps.
__________________
Jason Dias
http://www.facebook.com/jasondiasrc
Team Kyosho - AKA - KO PROPO - Hobbywing - Schuur Speed - Schelle Racing - OCRC Raceway - Tuning Haus
Jason.Dias is offline   Reply With Quote
Old 11-09-2014, 02:32 AM   #11066
Tech Elite
 
tonyv2382's Avatar
 
Join Date: Nov 2009
Location: Queens, NYC
Posts: 3,750
Trader Rating: 64 (100%+)
Send a message via Yahoo to tonyv2382
Default

Quote:
Originally Posted by Jason.Dias View Post
I've been running a gear diff (7k oil) at OCRC with great success.

To prevent leaking I used these gaskets http://www.kyoshoamerica.com/Diff-Ca...-S_p_4659.html and I put green slim on them to help seal the diff. Also put some green slim in the screw holes, and be sure not to over tighten the diff screws, I tightened them a little at a time in a cross pattern. If you over tighten the screws it will distort the plastic and diff will leak.

Also don't forget these o rings, http://www.kyoshoamerica.com/Silicon...15_p_4307.html for the outdrives.

The last thing is do not use too much diff fluid. I fill mine just below the cross shafts, basically put a few drops in each corner, work it in, and the level should be just at or below the cross shafts.

Hope this helps.
Will gove it a go. Thank you!
tonyv2382 is offline   Reply With Quote
Old 11-09-2014, 05:10 AM   #11067
Tech Addict
 
Join Date: Oct 2008
Posts: 500
Trader Rating: 3 (100%+)
Default

+1 what Jason said

the biggest think is not to over fill the diff, I filled just over half way, use the cross pin as a guide. Been running 5k on carpet for 3 months no leaks but I have stripped a plastic idler gear.
Tom87 is offline   Reply With Quote
Old 11-09-2014, 06:35 AM   #11068
Tech Adept
 
Join Date: Oct 2009
Posts: 220
Default

I used gasket sealant either side of the paper gasket and no leaking what so ever
Headling is offline   Reply With Quote
Old 11-09-2014, 12:48 PM   #11069
Tech Elite
 
tonyv2382's Avatar
 
Join Date: Nov 2009
Location: Queens, NYC
Posts: 3,750
Trader Rating: 64 (100%+)
Send a message via Yahoo to tonyv2382
Default

Tried this. I think overfilling is definitely the issue. Seems leak free as of now time will tell. I guess the proper oil level would be just above the bevel gear under the cross pins. On my TRF diffs which are pretty much bomb proof and leak proof, the trick was sanding each half of the diff case. I did that so that it is a more rough surface where thet meet instead of a "finished" slippery surface which I believe may help contain more oil.

Last edited by tonyv2382; 11-09-2014 at 04:08 PM.
tonyv2382 is offline   Reply With Quote
Old 11-09-2014, 04:41 PM   #11070
Tech Adept
 
Join Date: Sep 2011
Posts: 188
Default

My new electronic set up. . Mr clean status
Before


After
iMarky 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 22979 Yesterday 10:09 PM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15026 11-02-2017 04:19 PM
Kyosho Ultima RB5 Thread Drift_Buggy Electric Off-Road 14641 11-10-2015 09:28 AM
Kyosho Ultima SC aeRayls Electric Off-Road 2599 04-27-2014 05:30 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 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 12:57 AM.


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