Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Kyosho Ultima RB6 & RB6.6 Car Thread >

Kyosho Ultima RB6 & RB6.6 Car Thread

Community
Wiki Posts
Search
Like Tree172Likes

Kyosho Ultima RB6 & RB6.6 Car Thread

    Hide Wikipost
Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread 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

Thread Tools
 
Search this Thread
 
Old 01-28-2013, 07:15 PM
  #4831  
Tech Elite
iTrader: (47)
 
K_King's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 4,234
Trader Rating: 47 (100%+)
Default

Originally Posted by t8rtot
+10 drive a stock 6 and tell me it's not heads above the cars out there. They say the 5 arms free the car up in the rear but they every setup I've seen they're adding more toe to lock it back down. I bought the -1 arms but I'm so in love with how it handles now I won't make the change any any soon.
RB5 arms actually give the rear end more grip.
K_King is offline  
Old 01-28-2013, 07:27 PM
  #4832  
Tech Master
iTrader: (8)
 
Gary NJ's Avatar
 
Join Date: Jan 2004
Location: Long Island NY
Posts: 1,157
Trader Rating: 8 (100%+)
Default

Originally Posted by b121774
Just saw this, sorry if already posted http://www.amainhobbies.com/product_...n-Plate-Type-B
Of course, I bought the old 720 plate last night from A Main and got the notice saying it shipped an hour before you posted this...
Gary NJ is offline  
Old 01-28-2013, 07:57 PM
  #4833  
Moderator
iTrader: (470)
 
Posvar's Avatar
 
Join Date: Nov 2009
Location: North Carolina by way of SoCal!
Posts: 4,785
Trader Rating: 470 (100%+)
Default

Originally Posted by b121774
Just saw this, sorry if already posted http://www.amainhobbies.com/product_...n-Plate-Type-B

Ordered! Thanks.
Posvar is offline  
Old 01-28-2013, 08:23 PM
  #4834  
Tech Elite
iTrader: (14)
 
eper's Avatar
 
Join Date: Jan 2010
Location: new milford, CT.
Posts: 2,622
Trader Rating: 14 (100%+)
Default

hey guys, i keep seeing all this talk about y tebo runs the rb5 axle.. he also runs aka wheels. these wheels like the proline wheels have a deeper hex molded into them. so if you run the rb6 front axle with these rims they rub the spindles carrier a little bit. i just dremel the wheel tio make it work with the 6 front axle, if yo measure the rb5 axle with the hex it is in fact the same measurement as the rb 6 one, so really its not changing anything on the car except know he he can run his sponsors rims with zero issues.
eper is offline  
Old 01-28-2013, 08:31 PM
  #4835  
Tech Regular
iTrader: (2)
 
Join Date: Oct 2003
Posts: 315
Trader Rating: 2 (100%+)
Default

So what's the difference in running the rb5 axles, and just putting a spacer behind the rb6 axle?
Dale.0 is offline  
Old 01-28-2013, 10:20 PM
  #4836  
Tech Addict
iTrader: (1)
 
gelshocker's Avatar
 
Join Date: Sep 2011
Posts: 719
Trader Rating: 1 (100%+)
Default

"the rb5 axle with the hex it is in fact the same measurement as the rb 6 one" - I always thought this was true too?

I use the rb5 with hex for the simple fact I don't have to deal with threadlock.
gelshocker is offline  
Old 01-28-2013, 10:20 PM
  #4837  
Tech Addict
iTrader: (13)
 
cheROK1212's Avatar
 
Join Date: Mar 2009
Location: Noneyadammy
Posts: 571
Trader Rating: 13 (100%+)
Default

Originally Posted by Gary NJ
Of course, I bought the old 720 plate last night from A Main and got the notice saying it shipped an hour before you posted this...
Ditto but from Speedtechrc
cheROK1212 is offline  
Old 01-28-2013, 10:46 PM
  #4838  
Tech Elite
iTrader: (43)
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,154
Trader Rating: 43 (100%+)
Default

Ok I assembled my MIP Diff and the cvds. The fit and finish is excellent, the diff is butter smooth. The thrust bearings are confusing, the manual says 6 balls, but my bag had 7 balls so I built it with that many.

Also just to reiterate, the diff outdrives are SAME SIZE as kyosho ones so both Kyosho swing shafts and MIP will work. My assumption was wrong I had thought its thicker pins.

The best was the keyed axles, the hex feels really really solid and true. No weak thin plate to bend now like the regular k hex. I forgot to weigh the MIP diff though but by feel it weighs the same maybe even a bit less with the machining on the outdrives.


PS, I bent my third 720 plate this race glad to see they finally fixed that!!
aloksatoor is offline  
Old 01-28-2013, 11:08 PM
  #4839  
Tech Master
iTrader: (77)
 
Yeti AS3's Avatar
 
Join Date: Jan 2010
Location: lockport,IL
Posts: 1,349
Trader Rating: 77 (100%+)
Default

Originally Posted by eper
hey guys, i keep seeing all this talk about y tebo runs the rb5 axle.. he also runs aka wheels. these wheels like the proline wheels have a deeper hex molded into them. so if you run the rb6 front axle with these rims they rub the spindles carrier a little bit. i just dremel the wheel tio make it work with the 6 front axle, if yo measure the rb5 axle with the hex it is in fact the same measurement as the rb 6 one, so really its not changing anything on the car except know he he can run his sponsors rims with zero issues.
The axles may be the same length but my shallow hex K wheels have less offset than my deep hex JC fronts (think they are JC) by .03 or .035". I just run a .03 wheel spacer and dont have to grind the wheel with the rb6 axles. Something to dbl check.
Yeti AS3 is offline  
Old 01-28-2013, 11:22 PM
  #4840  
R/C Tech Elite Member
iTrader: (207)
 
Trevor Williams's Avatar
 
Join Date: Feb 2009
Location: Illinois
Posts: 8,382
Trader Rating: 207 (100%+)
Default

I run AKA wheels on front with stock axles and have zero clearance issues???

I also run them on the rear with a serrated wheel nut of course.
Trevor Williams is offline  
Old 01-29-2013, 02:04 AM
  #4841  
Tech Addict
iTrader: (2)
 
MrHistory's Avatar
 
Join Date: May 2011
Location: New York
Posts: 597
Trader Rating: 2 (100%+)
Default

Originally Posted by nitroargi
.the question is, do you have to adjust the length of the rear shocks when you make the switch and if so what is the better way...I am guessing by changing the ball ends with the medium ones?
I pointed this out earlier in the thread--having noticed the same issue, that the straight arms create a smaller triangle thus a shorter distance between shock ends for a given ride height. Someone gave me the condescending ??? type reaction

You can see from the first Tebo setup sheet that he does in fact use the medium ball ends presumably to compensate for this difference. When I first put the RB5 arms on with the long ball ends the spring adjustment was backed way out to get my ride height.
MrHistory is offline  
Old 01-29-2013, 02:16 AM
  #4842  
Tech Addict
iTrader: (2)
 
MrHistory's Avatar
 
Join Date: May 2011
Location: New York
Posts: 597
Trader Rating: 2 (100%+)
Default

Originally Posted by Posvar
Ordered! Thanks.
yes the first one is like tin. i am curious to know from others why the front is built as it is? why does the aluminum piece exist, and why are the hinge pins not captured by some other part of the front end? As it is designed a thicker bumper would help but maybe there is a performance explanation for not having a thicker bumper. Would it negatively effect the car by having it twice as thick? And why not a carbon fiber plate? I assume it would crack but not faster than the aluminum one bends beyond repair
MrHistory is offline  
Old 01-29-2013, 08:07 AM
  #4843  
Tech Addict
iTrader: (6)
 
jackcarter3's Avatar
 
Join Date: Apr 2012
Location: Truckee, California
Posts: 578
Trader Rating: 6 (100%+)
Default

So I am new to the kyosho experience and wow is it confusing with all the part numbers from the rb5. Finally have the car nearly built and noticed that the rb5 rear arms only come 1 to a pack with one front arm. So I am now waiting for those to come off back order.

What are people that are running these rear arms doing with the rb5 front arms?
jackcarter3 is offline  
Old 01-29-2013, 08:11 AM
  #4844  
Tech Elite
iTrader: (14)
 
t8rtot's Avatar
 
Join Date: Nov 2008
Posts: 2,015
Trader Rating: 14 (94%+)
Default

Originally Posted by jackcarter3
So I am new to the kyosho experience and wow is it confusing with all the part numbers from the rb5. Finally have the car nearly built and noticed that the rb5 rear arms only come 1 to a pack with one front arm. So I am now waiting for those to come off back order.

What are people that are running these rear arms doing with the rb5 front arms?
giving them as charity to the RB5 owners...
t8rtot is offline  
Old 01-29-2013, 08:11 AM
  #4845  
Tech Lord
Thread Starter
iTrader: (52)
 
Cpt.America's Avatar
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,085
Trader Rating: 52 (100%+)
Default

Originally Posted by mdowney
Yeah, I see that on the CRCRC setup sheet. So what is Brandon talking about with the narrow track width. I thought that could only be changed through the caster block...
Nope.. you change front track width of the rb6, with the rb6 caster block inserts. Hole to the outside, or hole to the inside. Have to make sure you orient them so that you don't also flip your caster affect though... a +2 caster insert can also be a -2 if put in the wrong way.

So Tebo is running the narrow front track width, but wide front hexes. Since roll center is measured out to the center of the tire contact patch... im not sure what this will accomplish, except maybe let him run a different offset front wheel without drastically changing his track... just a guess.
Cpt.America is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.