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 02-07-2013, 12:48 PM
  #5041  
Tech Champion
iTrader: (73)
 
MikeXray's Avatar
 
Join Date: Oct 2006
Location: New York
Posts: 5,755
Trader Rating: 73 (100%+)
Default

Now apply the "traction curve" to slip angles and contact patch

When using a rpm type camber gauge what do you find is the best way to measure camber consistently, rims with no tires? obviously once wheels/tires are run they can deflect..
MikeXray is offline  
Old 02-07-2013, 01:15 PM
  #5042  
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 MikeXray
Now apply the "traction curve" to slip angles and contact patch

When using a rpm type camber gauge what do you find is the best way to measure camber consistently, rims with no tires? obviously once wheels/tires are run they can deflect..
aahhh yes, slip angles... that's another day

Ya know, I have tried 3 different ways to measure camber. 1. on-road setup wheels and fixed tamiya on-road camber gauge, 2. hudy off-road setup station, and 3. plastic rpm gauge up against the tire.

My favorite, is using on-road setup wheels with my on-road gauge. Where I really see a difference, is in the rear of the car. With the setup wheels on, I can measure -1 camber. If I toss the tires back on the car and measure with the RPM, I am usually at 0. Considering the bottom of the tire should be "squished out" more, you would think that it would read something more like -2... but it doesn't. I'm not sure why the big difference.... anybody know? (I admit, I haven't spent much time thinking about it).

(edit: now that I think about it, i guess it would be happening because of how the car is being set down onto the surface. If the outer edge of the tire hits first (at the bottom), it could pull the top of the hub/tire outwards, throwing off the measurement. I bet if you pulled the bottom of the tire outwards when you settle the car, you would get -1 as well... ill have to experiment at the track )

Last edited by Cpt.America; 02-07-2013 at 01:28 PM.
Cpt.America is offline  
Old 02-07-2013, 01:40 PM
  #5043  
Tech Regular
iTrader: (42)
 
Join Date: May 2009
Posts: 428
Trader Rating: 42 (100%+)
Default

Originally Posted by Cpt.America
There are a LOT of things you an do (or not do) that can make one end of the car either locked in, or loose. But with everything else being 100% equal, a wider track will yield less grip on that end of the car. (were not talking vast amounts here, just a slight difference)
I went from wide to narrow. Just a very minor difference but more locked down. I like it
noworries is offline  
Old 02-07-2013, 01:42 PM
  #5044  
Tech Regular
iTrader: (42)
 
Join Date: May 2009
Posts: 428
Trader Rating: 42 (100%+)
Default

Originally Posted by Gitsum
Has anyone found the sweet spot for gearing a vst 17.5 in the Rb6?
69 spur 33 pinion blinky mode on a tight track i found to be the best. I also added the associated slipper/kimbrough spur and much better
noworries is offline  
Old 02-07-2013, 01:45 PM
  #5045  
Tech Regular
iTrader: (42)
 
Join Date: May 2009
Posts: 428
Trader Rating: 42 (100%+)
Default

Originally Posted by Cpt.America
Ever built kyosho big bore shocks? They are the easiest and most buttery shocks you will ever build.
Echo that. I have built lots of shocks. It is a pleasure to sit and build Kyosho shocks.
noworries is offline  
Old 02-07-2013, 01:47 PM
  #5046  
Tech Regular
iTrader: (42)
 
Join Date: May 2009
Posts: 428
Trader Rating: 42 (100%+)
Default

Originally Posted by Rfury
Yeah, I had made my choice awhile ago. I just needed the cash to buy it. My RB5's will be up on eBay soon.

I saw that one on eBay as well. My local hobby shop is checking for me as well.
I was lucky enough to find mine factory sealed on Ebay for $398.
noworries is offline  
Old 02-07-2013, 01:48 PM
  #5047  
Super Moderator
iTrader: (81)
 
Kraig's Avatar
 
Join Date: Aug 2001
Location: Sun Prairie, WI
Posts: 6,944
Trader Rating: 81 (100%+)
Default

Originally Posted by Dusttt
and don't get me started on turnbuckles LOL
For turnbuckles I chuck the ball cup in a drill. Then I hold the turnbuckle with a wrench and slowly turn the drill on. The drill turns the ball cup, obviously, and the turnbuckle threads together nicely.

Now nobody steal my idea and submit it to Car Action. I need that free subscription or whatever they are offering these days for reader submitted tips.
Kraig is offline  
Old 02-07-2013, 01:58 PM
  #5048  
Tech Regular
iTrader: (1)
 
Join Date: Oct 2009
Posts: 400
Trader Rating: 1 (100%+)
Default

I'm running the Avid slipper and I really like it - except it seems I've got it tightened down almost to the end of the spring (if that makes since) - in other words the spring is almost fully collapsed. It's 17.5 blinky mode, and it almost needs to be even tighter ... is the spring worn out already?

Anyone else experience this yet?
ChadBlanton is offline  
Old 02-07-2013, 02:30 PM
  #5049  
Tech Regular
iTrader: (11)
 
Just1More's Avatar
 
Join Date: Jan 2011
Location: Bremerton, WA
Posts: 426
Trader Rating: 11 (100%+)
Default

Originally Posted by ChadBlanton
I'm running the Avid slipper and I really like it - except it seems I've got it tightened down almost to the end of the spring (if that makes since) - in other words the spring is almost fully collapsed. It's 17.5 blinky mode, and it almost needs to be even tighter ... is the spring worn out already?

Anyone else experience this yet?
Make sure it's assembled correctly. Or disassemble and look for wear on all surfaces of the pads that touch a moving plate, it sounds like you have a shim or washer in the wrong spot so you're only using 1-2 of the 3 pads. My Triad works great with tons of adjustment room left.
Just1More is offline  
Old 02-07-2013, 02:33 PM
  #5050  
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

With my B4 pads.... my lock nut is tightened down 98% of the way. I wonder if my spring is wearing out already?

Last edited by Cpt.America; 02-07-2013 at 02:51 PM.
Cpt.America is offline  
Old 02-07-2013, 03:18 PM
  #5051  
Tech Master
 
Join Date: Jul 2011
Location: Kaohsiung City, Taiwan
Posts: 1,570
Default

Originally Posted by Kraig
For turnbuckles I chuck the ball cup in a drill. Then I hold the turnbuckle with a wrench and slowly turn the drill on. The drill turns the ball cup, obviously, and the turnbuckle threads together nicely.

Now nobody steal my idea and submit it to Car Action. I need that free subscription or whatever they are offering these days for reader submitted tips.


I do the same thing. I got tired of trying to do it by hand.
JiuHaWong is offline  
Old 02-07-2013, 03:29 PM
  #5052  
Tech Master
iTrader: (21)
 
mdowney's Avatar
 
Join Date: Jun 2010
Location: Seattle, WA
Posts: 1,562
Trader Rating: 21 (100%+)
Default

New setups posted on kyoshoamerica.com

Jared Tebo's 2013 Reedy Race RB6 setup

Atsushi Hara's 2013 Reedy Race RB6 Mid-motor setup

Jared Tebo's 2013 Reedy Race Lazer ZX-5 SP setup
mdowney is offline  
Old 02-07-2013, 03:31 PM
  #5053  
Tech Master
iTrader: (29)
 
silvalis's Avatar
 
Join Date: Aug 2011
Location: Brisbane
Posts: 1,547
Trader Rating: 29 (100%+)
Default

What is the best way to set the slipper on stock ? I've been having trouble setting my avid correctly, just guessing and adjusting on the track. Don't want to do a clamp-nose-lift as I'll probably burn my 17.5 out...
silvalis is offline  
Old 02-07-2013, 03:33 PM
  #5054  
Tech Master
iTrader: (3)
 
Join Date: Dec 2006
Location: Imperial,Missouri
Posts: 1,297
Trader Rating: 3 (100%+)
Default

Can someone tell me what the advantage or purpose of running the RB5 front spindles is. Thanks
X God is offline  
Old 02-07-2013, 03:34 PM
  #5055  
Tech Regular
iTrader: (1)
 
Join Date: Oct 2009
Posts: 400
Trader Rating: 1 (100%+)
Default

Originally Posted by silvalis
What is the best way to set the slipper on stock ? I've been having trouble setting my avid correctly, just guessing and adjusting on the track. Don't want to do a clamp-nose-lift as I'll probably burn my 17.5 out...
... yep, I've been doing the same thing trying to get it just right. The trouble is you can't hear your car w/ all the other cars and noise, ect ...
ChadBlanton 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.