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 05-31-2014, 10:40 AM   #10456
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Does it matter if the car is rear motor or mid motor when it comes to the piston selection and oil weight?
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 05-31-2014, 11:28 AM   #10457
Tech Champion
 
ThePanda's Avatar
 
Join Date: Jul 2013
Location: Michigan
Posts: 6,990
Trader Rating: 64 (100%+)
Default

yeah. with the weight in a different part of the car you need different suspension settings (springs as well) to get the car to drive like you would want in each setting.
ThePanda is offline   Reply With Quote
Old 05-31-2014, 05:47 PM   #10458
Tech Master
 
KalEl63's Avatar
 
Join Date: Jun 2011
Location: 3rd Rock
Posts: 1,950
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by Zylux View Post
Interesting. I'd have thought maybe more % rear than that. My mid motor is about 62.x % at the rear.
I decide to do my MM too with saddles all the way back and I got similar numbers in F=36.5% and R=63.5%.
I may have to look at how I am doing this with one scale
__________________
Team Associated RC10 B6D
Team Associated RC10 B64D
Team Associated RC10 T5M

1.21 GIGAWATTS!!!
KalEl63 is offline   Reply With Quote
Old 06-01-2014, 01:44 AM   #10459
Tech Adept
 
Zylux's Avatar
 
Join Date: May 2014
Location: Melbourne, Victoria, Australia
Posts: 116
Default

Quote:
Originally Posted by KalEl63 View Post
I decide to do my MM too with saddles all the way back and I got similar numbers in F=36.5% and R=63.5%.
I may have to look at how I am doing this with one scale
Wow. That's a lot of rear bias for mm. I have my shorty pushed right back against the motor and can't get near 63.5%. Are you running a full size servo? I guess I did take a lot of weight out of the rear (avid slipper, MIP pucks CVD kit, lightweight chassis etc) but still. What is the total weight of the car?

I use four individual 0.1g scales to do my front/rear left/right measurements. I guess if you are using only one scale you would need to at least place something the same height as the scale under the front wheels. Are both rear wheels able to get onto the scale?
Zylux is offline   Reply With Quote
Old 06-01-2014, 06:16 AM   #10460
Tech Elite
 
K_King's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 4,172
Trader Rating: 38 (100%+)
Send a message via AIM to K_King
Default

Went to 1.5 front 1.6 rear piston with 30/25 losi oil. I liked that pretty good, it allowed the car to be a little more precise.
__________________
TLR - Spektrum - Pro-Line - Team Orion - Stickit1 - Schelle
K_King is offline   Reply With Quote
Old 06-01-2014, 12:11 PM   #10461
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Can someone explain to me why we use different size shock ends. I know it has something to do with droop. Example if I want 27mm in the rear and could achieve this with md or lg ends which should I choose?
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 06-01-2014, 12:29 PM   #10462
Tech Elite
 
Teufel Racing's Avatar
 
Join Date: Jan 2008
Location: Sparks Nv.
Posts: 2,134
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by Speedychris22 View Post
Can someone explain to me why we use different size shock ends. I know it has something to do with droop. Example if I want 27mm in the rear and could achieve this with md or lg ends which should I choose?
It's mostly about the droop, but also the overall shock length.

If you can get 27mm between the bottom of the shock and top of the shock end for both med. and long shock ends, the over all shock length will be a little different. Which would mean that the droop would be different between the two, even though you have 27mm set on either configuration.
__________________
J.Mikoliczyk

ZX6 - RB6 - MP9e
Fantom Racing, Cheater Racing
Houston's Engine Service
Teufel Racing is offline   Reply With Quote
Old 06-01-2014, 12:36 PM   #10463
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Quote:
Originally Posted by Teufel Racing View Post
It's mostly about the droop, but also the overall shock length.

If you can get 27mm between the bottom of the shock and top of the shock end for both med. and long shock ends, the over all shock length will be a little different. Which would mean that the droop would be different between the two, even though you have 27mm set on either configuration.
So for low traction which would u recommend?
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 06-01-2014, 01:01 PM   #10464
Tech Elite
 
K_King's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 4,172
Trader Rating: 38 (100%+)
Send a message via AIM to K_King
Default

The difference is drive plunge. The taller the shock end the less CVD plunge on compression which frees up the car.
__________________
TLR - Spektrum - Pro-Line - Team Orion - Stickit1 - Schelle
K_King is offline   Reply With Quote
Old 06-01-2014, 05:24 PM   #10465
Tech Elite
 
Join Date: Dec 2004
Location: Marietta, Ga
Posts: 2,087
Trader Rating: 57 (100%+)
Default

Can someone tell me the overall length of the medium shock end?

Got my car used and only found 2 sizes, not sure what is what.
PROMODVETTE is offline   Reply With Quote
Old 06-02-2014, 07:41 AM   #10466
Tech Master
 
Join Date: Feb 2010
Location: Valley Cottage NY
Posts: 1,798
Trader Rating: 48 (100%+)
Default

Has anyone tried the brass bulkhead from ghea?
__________________
Thanks to my sponsors:
My Credit Card
Speedychris22 is offline   Reply With Quote
Old 06-02-2014, 09:50 AM   #10467
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by K_King View Post
The difference is drive plunge. The taller the shock end the less CVD plunge on compression which frees up the car.
Have you guys tried using spacers to get rid of the extra droop say for sugar tracks? The excessive droop causes too much roll, I do love the longer ends on rear though.
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco
aloksatoor is offline   Reply With Quote
Old 06-02-2014, 04:18 PM   #10468
Tech Elite
 
eper's Avatar
 
Join Date: Jan 2010
Location: new milford, CT.
Posts: 2,599
Trader Rating: 14 (100%+)
Default

Are u guys using this thread for both mm and rm discussions?
__________________
new milford ct,
WOLCOTT HOBBIES.. TEAM SCREAM..PRO-LINE RACING,,RC Truck Stop, and FTM grip
I CALL IT HOW I SEE IT!!!!!
eper is offline   Reply With Quote
Old 06-02-2014, 04:42 PM   #10469
Tech Regular
 
Holmberg418's Avatar
 
Join Date: Apr 2012
Location: Blaine,Mn
Posts: 471
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by aloksatoor View Post
Have you guys tried using spacers to get rid of the extra droop say for sugar tracks? The excessive droop causes too much roll, I do love the longer ends on rear though.
No just run different shock ends and different droop. No need to put spacers on the inside of the shock. I normally around 20 front 28 rear with shock length "B" medium front long rear shock ends.
My shock set up right now for rm is front 30w 1.3x4 pink spring 20.5 length with med end. Rear 25w 1.3x4 red rear spring 28 length with long end.
__________________
Kyosho America, Lunsford, Stickit1racing, Jconcepts, JTP
Full Throttle R/C Raceway www.ftrcr.com
510 Raceway
Holmberg418 is offline   Reply With Quote
Old 06-03-2014, 01:11 PM   #10470
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 eper View Post
Are u guys using this thread for both mm and rm discussions?
Yes.
__________________
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: 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 02:22 PM.


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