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 08-07-2017, 05:20 PM
  #14341  
JAE
Tech Master
iTrader: (30)
 
Join Date: Jun 2015
Posts: 1,974
Trader Rating: 30 (100%+)
Default

Are the AE gullwing's a pop in solution, or do you need extra parts? Any special dremeling or work required? thx

Originally Posted by RogerM
I do on high grip surfaces yes.

Gullwing arms basically change the way the shock inclination changes as the car rolls. The result of this is that, changing nothing else, you lose a little initial steering but gain a good chunk of mid-exit steering.

This makes the car feel more neutral through the whole turn with the tire combinations we run on astroturf / carpet.
JAE is offline  
Old 08-14-2017, 04:23 AM
  #14342  
Tech Master
 
Join Date: Dec 2005
Location: Cheltenham, Gloucestershire, England
Posts: 1,211
Default

Originally Posted by JAE
Are the AE gullwing's a pop in solution, or do you need extra parts? Any special dremeling or work required? thx
Drop straight on with a few spacers, think it's 1.5mm outboard and 3mm inboard from memory.
RogerM is offline  
Old 08-14-2017, 02:33 PM
  #14343  
Tech Master
iTrader: (12)
 
Woulvesbaine's Avatar
 
Join Date: Feb 2012
Location: California
Posts: 1,325
Trader Rating: 12 (100%+)
Default

Originally Posted by RogerM
Drop straight on with a few spacers, think it's 1.5mm outboard and 3mm inboard from memory.
On the AE, a different tower is run; I'm guessing to maintain sufficient droop. Maybe someone can confirm that in which case double the amount of droop you have after switching.
Woulvesbaine is offline  
Old 08-15-2017, 05:02 AM
  #14344  
Tech Master
 
Join Date: Dec 2005
Location: Cheltenham, Gloucestershire, England
Posts: 1,211
Default

Originally Posted by Woulvesbaine
On the AE, a different tower is run; I'm guessing to maintain sufficient droop. Maybe someone can confirm that in which case double the amount of droop you have after switching.
If you were running short eyelets on the front run mediums, if you were running mediums then run long.

If you were already running long your track isn't going to be suited to gullwing arms anyway so no need to worry.
RogerM is offline  
Old 08-20-2017, 05:50 PM
  #14345  
Tech Addict
iTrader: (21)
 
Tommy R's Avatar
 
Join Date: Mar 2011
Location: Austin, TX, USA
Posts: 641
Trader Rating: 21 (100%+)
Default

Hey folks,

I bought my RB6.6 used and raced it for the first time yesterday. Did pretty well with it, but the motor ran hotter than I feel comfortable with. I need a fan on it and have been searching for what is available in the aftermarket world....such as the waterfall mount I had on my Assoc. B5M. So far, I've come up empty. Any suggestions?

Thanks!
Tommy
Tommy R is offline  
Old 08-20-2017, 08:13 PM
  #14346  
Tech Addict
iTrader: (16)
 
Join Date: Feb 2010
Location: Phoenix, AZ
Posts: 508
Trader Rating: 16 (100%+)
Default

Originally Posted by Tommy R
Hey folks,

I bought my RB6.6 used and raced it for the first time yesterday. Did pretty well with it, but the motor ran hotter than I feel comfortable with. I need a fan on it and have been searching for what is available in the aftermarket world....such as the waterfall mount I had on my Assoc. B5M. So far, I've come up empty. Any suggestions?

Thanks!
Tommy
The exotek angled fan mount is what I use, however . . . I used to shoe-goo it to the chassis as well, and while not nearly a cool it works.
mupchu is offline  
Old 08-21-2017, 04:48 PM
  #14347  
Tech Addict
iTrader: (10)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 577
Trader Rating: 10 (100%+)
Default

Originally Posted by Tommy R
Hey folks,

I bought my RB6.6 used and raced it for the first time yesterday. Did pretty well with it, but the motor ran hotter than I feel comfortable with. I need a fan on it and have been searching for what is available in the aftermarket world....such as the waterfall mount I had on my Assoc. B5M. So far, I've come up empty. Any suggestions?

Thanks!
Tommy
nvm...
Stinkin photobucket...
oPAULo is offline  
Old 08-21-2017, 10:11 PM
  #14348  
Tech Addict
iTrader: (21)
 
Tommy R's Avatar
 
Join Date: Mar 2011
Location: Austin, TX, USA
Posts: 641
Trader Rating: 21 (100%+)
Default

Well, I ordered a 30mm fan from Maclan and will try to install it similar to what I saw in an RC Car Action article. Haven't decided on the mounting method yet, however...and I can't quite tell how this one (below) was attached.

Tommy R is offline  
Old 08-22-2017, 05:55 AM
  #14349  
Tech Addict
iTrader: (10)
 
oPAULo's Avatar
 
Join Date: Mar 2015
Location: Bedford, IN
Posts: 577
Trader Rating: 10 (100%+)
Default

I can't figure out this image linking anymore...
oPAULo is offline  
Old 08-22-2017, 10:01 AM
  #14350  
Tech Addict
iTrader: (16)
 
Join Date: Feb 2010
Location: Phoenix, AZ
Posts: 508
Trader Rating: 16 (100%+)
Default

Originally Posted by Tommy R
Well, I ordered a 30mm fan from Maclan and will try to install it similar to what I saw in an RC Car Action article. Haven't decided on the mounting method yet, however...and I can't quite tell how this one (below) was attached.

Looks like double-sided tape to be honest . . .
the fan does not have a screw in it for a mount, and it does work . . .
mupchu is offline  
Old 08-22-2017, 10:03 AM
  #14351  
JAE
Tech Master
iTrader: (30)
 
Join Date: Jun 2015
Posts: 1,974
Trader Rating: 30 (100%+)
Default

Best way is to CA glue the fan to the double sided tape and stick the tape to the chassis. This is better than the fan mount as it doesn't bounce around. Distributor for WTF fans gave me the advice and haven't broken one since
Originally Posted by mupchu
Looks like double-sided tape to be honest . . .
the fan does not have a screw in it for a mount, and it does work . . .
JAE is offline  
Old 08-23-2017, 11:45 AM
  #14352  
Tech Addict
iTrader: (21)
 
Tommy R's Avatar
 
Join Date: Mar 2011
Location: Austin, TX, USA
Posts: 641
Trader Rating: 21 (100%+)
Default

Originally Posted by JAE
Best way is to CA glue the fan to the double sided tape and stick the tape to the chassis. This is better than the fan mount as it doesn't bounce around. Distributor for WTF fans gave me the advice and haven't broken one since
Now that's pretty interesting! I may give it a try when the fan arrives tomorrow. Thanks!
Tommy R is offline  
Old 08-23-2017, 11:57 AM
  #14353  
Tech Apprentice
iTrader: (6)
 
Join Date: Jun 2011
Location: Reno, NV
Posts: 94
Trader Rating: 6 (100%+)
Default

I shoe goo mine down. No issues at all and with a little heat it releases clean.
Arcain41 is offline  
Old 08-23-2017, 12:02 PM
  #14354  
JAE
Tech Master
iTrader: (30)
 
Join Date: Jun 2015
Posts: 1,974
Trader Rating: 30 (100%+)
Default

Best thing about doing it this way, other than it stays secure, is that being it is CA glued to the tape you can still take your motor out. The fan can be bent since it is the tape that flexes a little and fan is CA'd to the tape.
I've taken my motor out a dozen time and never had to re-tape the fan.


Originally Posted by Tommy R
Now that's pretty interesting! I may give it a try when the fan arrives tomorrow. Thanks!
JAE is offline  
Old 08-23-2017, 12:18 PM
  #14355  
Tech Addict
iTrader: (21)
 
Tommy R's Avatar
 
Join Date: Mar 2011
Location: Austin, TX, USA
Posts: 641
Trader Rating: 21 (100%+)
Default

I have a setup question(s) for everyone. I picked up my RB6.6 used. I went through it and set it up with the box stock setup as best I could, but the manual was a bit unclear in some regards. I also noticed that the rear pistons were 4 hole, but I believe they were originally 2 hole?

I'm running on a very smooth turf track that's awfully high bite so I'm running a laydown transmission setup with a shorty pack as far forward as I can get it. I'm also running the hardest front springs and the second hardest rears, based on some info I found online. Given the high grip levels, I thought it seemed pretty reasonable. Anyway, I threw 35 WT in the dampers and raced it last weekend. It did well, but had a few issues...

It had a slight push on corner entry. Not awful, but it was noticeable. It also flat-landed poorly and would seem to slap and get sideways sometimes. The track's landings are easy to overshoot and when I did, the car would typically get pretty upset costing me lots of time. Here's a video a friend took for me while I was practicing:
https://www.youtube.com/watch?v=Uqc9ODkej98

I also checked the petitrc site, but didn't see a setup for high grip, smooth turf that's geared for an RB6.6 (as opposed to an RB6). Any suggestions?
Tommy R 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.