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 11-20-2013, 11:02 AM   #8716
Tech Rookie
 
Join Date: Oct 2012
Location: Praha, Czech
Posts: 2
Default

Quote:
Originally Posted by KalEl63 View Post
Well that throws my 2.5mm out and means 1.5mm would give about .25 pro squat

K King Anti squat is where the front hanger is higher than the rear hanger and Pro is where the rear hanger is higher than the front hanger

Where are these images to see?
motor home is offline   Reply With Quote
Old 11-20-2013, 11:47 AM   #8717
Super Moderator
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,391
Trader Rating: 71 (100%+)
Default

Quote:
Originally Posted by motor home View Post
Where are these images to see?
In this post, Kyosho Ultima RB6 & RB6.6 Car Thread

or click here.
__________________
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 11-20-2013, 01:18 PM   #8718
Tech Master
 
KalEl63's Avatar
 
Join Date: Jun 2011
Location: 3rd Rock
Posts: 1,950
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by FallenAllDay View Post
Hey guys, ive bought an rb6 and have almost finished the build. Do you guys actually grease the cvd end into the diff outdrive? Wouldnt that just attract dirt and promote wear?? And also in the kits instructions it doesnt say what shock oils run front or rear!? Do you have a base line starting point for me?? The info is much appreciated, im a nitro dude and this is my first electric kit im just wanting to do it right.
I started with 30Wt in the front and 27.5Wt in the rear but I'm now running 32.5Wt in the front with the GHEA 4x1.3mm pistons and like it.
__________________
Team Associated RC10 B6D
Team Associated RC10 B64D
Team Associated RC10 T5M

1.21 GIGAWATTS!!!
KalEl63 is offline   Reply With Quote
Old 11-20-2013, 03:55 PM   #8719
Tech Addict
 
Join Date: Jul 2006
Location: CT
Posts: 561
Trader Rating: 24 (100%+)
Default

My two. Just got the new blue one tonight as setup currently:

Blue:
RS Pro
17.5 Tekin Gen 1
Protek 230T servo
Shorty setup
MyLaps

Black:
RS Gen 1
Tekin 7.5 Gen 2
STRC aluminum rear hubs
Jconcepts front hinge pin brace
Exotek steering rack
Savox 1257
MyLaps

jamesbernatchez is offline   Reply With Quote
Old 11-20-2013, 04:27 PM   #8720
Tech Champion
 
skengines's Avatar
 
Join Date: Nov 2003
Location: Blah Vegas
Posts: 5,292
Trader Rating: 226 (100%+)
Default

Do I sense a RB6 WC coming soon?
__________________
Mugen MBX7 Eco/Mugen MBX7T Eco
skengines is offline   Reply With Quote
Old 11-20-2013, 04:46 PM   #8721
Tech Regular
 
Holmberg418's Avatar
 
Join Date: Apr 2012
Location: Blaine,Mn
Posts: 471
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by skengines View Post
Do I sense a RB6 WC coming soon?
No you don't. Why would they come out with one. There is nothing different besides some aluminum option parts
__________________
Kyosho America, Lunsford, Stickit1racing, Jconcepts, JTP
Full Throttle R/C Raceway www.ftrcr.com
510 Raceway
Holmberg418 is offline   Reply With Quote
Old 11-20-2013, 05:35 PM   #8722
E73
Tech Apprentice
 
E73's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2013
Location: Issaquah, WA
Posts: 88
Trader Rating: 2 (100%+)
Default

I'm thinking a SCT is next in line….…which is no good because I will have to buy it.
E73 is offline   Reply With Quote
Old 11-20-2013, 05:52 PM   #8723
Tech Adept
 
Join Date: Nov 2012
Posts: 111
Trader Rating: 2 (100%+)
Default

Hello!

I wish to try running my RB6 in stock class. It was suggested to run an AVID 69 tooth spur and 33 tooth pinion. So upon install, the gears ( I think the pinion) rub on the gear cover. Is there a different gear cover available? Run without (yikes), or change to a different gear ratio setup?

Sorry noob beginner stock racer here.

Thanks

Mark
mlinder is offline   Reply With Quote
Old 11-20-2013, 06:03 PM   #8724
E73
Tech Apprentice
 
E73's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2013
Location: Issaquah, WA
Posts: 88
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by mlinder View Post
Hello!

I wish to try running my RB6 in stock class. It was suggested to run an AVID 69 tooth spur and 33 tooth pinion. So upon install, the gears ( I think the pinion) rub on the gear cover. Is there a different gear cover available? Run without (yikes), or change to a different gear ratio setup?

Sorry noob beginner stock racer here.

Thanks

Mark
I run 69/31 and it has enough speed and torque for stock 17.5 class and does not rub the cover. Gearing such as you are increases top speed but reduces acceleration (torque) for the infield. Since only a small amount of time is spent on the straight, I suggest you gear down. Doing so will also reduce the temperature of the motor. My .02.
E73 is offline   Reply With Quote
Old 11-20-2013, 06:30 PM   #8725
Tech Adept
 
Join Date: Nov 2012
Posts: 111
Trader Rating: 2 (100%+)
Default

73,

Thanks for your reply. Makes a lot of sense. I will change the gearing first.

Mark
mlinder is offline   Reply With Quote
Old 11-20-2013, 08:18 PM   #8726
Super Moderator
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,391
Trader Rating: 71 (100%+)
Default

Quote:
Originally Posted by mlinder View Post
Hello!

I wish to try running my RB6 in stock class. It was suggested to run an AVID 69 tooth spur and 33 tooth pinion. So upon install, the gears ( I think the pinion) rub on the gear cover. Is there a different gear cover available? Run without (yikes), or change to a different gear ratio setup?

Sorry noob beginner stock racer here.

Thanks

Mark
There is one spot on the gear cover that rubs the gear if I remember correctly. What I did is I took a silver sharpie and colored where the gear cover would cover the pinion gear. I then installed it, turned on the car and gave the throttle a couple of short blips. I then removed the gear cover and I could see where the gear wore the silver sharpie away. I then to a sanding drum on the dremel and lightly went over that area of the cover. I repeated that process a couple of times until the gear didn't rub the cover anymore.
__________________
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 11-20-2013, 10:31 PM   #8727
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Quick question, on a low grip bumpy track should I stick the regular rear arms or try the 521-1 arms? I'm running rear motor
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 11-21-2013, 12:15 AM   #8728
Tech Regular
 
Join Date: Jul 2012
Location: Frisco,Tx
Posts: 355
Trader Rating: 6 (88%+)
Default

Quote:
Originally Posted by Speedychris22 View Post
Quick question, on a low grip bumpy track should I stick the regular rear arms or try the 521-1 arms? I'm running rear motor
I've got the same question except I'm running mid-ship...What do the arms do exactly? and do you have to have anything for them to be compatible?
Rcdudes3475 is offline   Reply With Quote
Old 11-21-2013, 07:46 AM   #8729
Tech Elite
 
Jochim_18's Avatar
 
Join Date: Mar 2005
Location: CALI
Posts: 2,364
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by MikeXray View Post
Thanks for the list, I have to do more testing with the rear link. In onroad I would do like you said and lengthen, raise it, but so far it seems that lower/shorter has produced more rotation on my car. I do feel that the weight might be transferring too fast, or possibly not enough right now which is why the car gets into the corner well, but then struggles.
Longer link = lower roll center (It will give you more traction overall but you will loose some steering)

Shorter link = Higher roll center (cars is more reactive and rotates better)

Roll center has big impact on how you want the buggy to react in certain section of the track. "You add some you loose some" when changing your roll center. Rule of thumb you want your front and rear roll center as close as possible to have a good balance car...
__________________
Localrcracing.com - Your premiere source of Radio controlled Racing in central California.

Visaliahobbies.com * SkyRC * casterracingparts.com
Jochim_18 is offline   Reply With Quote
Old 11-21-2013, 07:51 AM   #8730
Tech Master
 
carbons2k's Avatar
 
Join Date: May 2011
Location: Long Island, NY
Posts: 1,801
Trader Rating: 21 (92%+)
Default

How do you guys add some weight to the back of your midmotor rb6's?
__________________
Tom Licata
*JConcepts*Devil Spit*
carbons2k 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: 2 (1 members and 1 guests)
sho yoshida
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 06:16 PM.


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