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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech Forums Thread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
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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

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Old 12-11-2014, 11:32 PM   #11236
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Looking for setup advice on a low-medium bite/damp-wet/med-large track..

Tried the Zach Rogers setup, that was a diffidently a no go.. Feel that it's going to need an odd setup or something, because the car is just terrible with the Zach Rogers setup. (but dialed at the other track we have)
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Old 12-12-2014, 12:09 AM   #11237
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First off I would like to say thank you for trying my setup, I love seeing so many people giving it a try and hearing the feedback.

Second off, what do you feel like you need under the current track conditions you are asking about? I am assuming maybe more grip? Let us know and I(and I am sure many others) will do our best to assist you!

I know it is A LOT of work but a sideway battery will definitely give you more grip....if you car is to bouncy you can try going to a 4 hole piston in the rear and it also make the car feel more stable(traction wise) in the middle of the corner(30wt oil) you can also lengthen your rear camber length, along with many more options....

Sorry I don't get on here much but I am sure if you post more detail of what you are looking for we can do our best to assist you

Take it easy mate.
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Old 12-12-2014, 01:16 AM   #11238
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have been wanting to get an rb6 ever since i tried my friends running a b5m right now in 2wd mod, what parts will i need to get that dont come in the kit for $440 i would hope it has most of what i need thanks.
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Old 12-12-2014, 05:14 AM   #11239
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Does anyone know if the jconcepts buggy wheels are a good fit? I have a bunch, and want to know if I will need different ones. I do have Durango wheel nuts coming if that helps.
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Old 12-12-2014, 06:32 AM   #11240
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Quote:
Originally Posted by 3srcracing View Post
Looking for setup advice on a low-medium bite/damp-wet/med-large track..

Tried the Zach Rogers setup, that was a diffidently a no go.. Feel that it's going to need an odd setup or something, because the car is just terrible with the Zach Rogers setup. (but dialed at the other track we have)
I started out with the Tebo/King Reedy Race setup, then did Zach's new arm hole. Then I went up from whites to gold springs on the rear. I finally put 2mm spacers under the bulkhead ballstuds and nothing under the hub ball studs to give it more roll.

Lately I have gotten a lot of reward by adjusting the roll center. I find that the proper roll center depends not only on the grip of the track, but also the speed and agressiveness with which you drive.

Typically I have found that I need a little higher roll center than the pro setups because I don't drive as hard as they do.

Less speed + more leverage = same grip.

As of last night, I found the traction at our new track is starting to come up and I was on the hairy edge of traction rolling, so I will probably decrease the roll center a little. I would have done it last night but those ball studs are so difficult to get to on the rear bulkhead!
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Old 12-12-2014, 08:57 AM   #11241
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Gentle People of the RB6 Thread,

Thank you for your help with my transmission issues. Last night I was able to successfully finish an entire race night without issue. I babied it a little in qualifying just to make sure. In the main I had a marshall pull my car off the track because he thought I was broke, even though I was wiggling the front wheels (I didn't want to hit the throttle because it looked like his finger was near the drive shaft!). So after going a lap+ down to the field of 10, I was able to battle back up to 4 in the process passing everyone but the leader.

I am not sure what the root cause of my issue was. I installed a new transmission housing and was super dilligent about cleaning the gears and bearings. I also found that one of the shims where the rear bulkhead attaches to the suspension hanger was missing.

So thanks again, despite my marshalling misfortune it was a fun night!
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Old 12-12-2014, 10:01 AM   #11242
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Quote:
Originally Posted by ThePanda View Post
Does anyone know if the jconcepts buggy wheels are a good fit? I have a bunch, and want to know if I will need different ones. I do have Durango wheel nuts coming if that helps.
Jconcepts wheels do fit but the front ones rub a little on the steering knuckle when tightened down. I just chamfer the edge with a knife.
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Old 12-12-2014, 08:40 PM   #11243
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Think I read somewhere that the tlr 22 aluminum servo horn fits w/O modification. Anybody know which one
http://www.amain.com/team-losi-racin...tlr-22/p203507
Or
http://www.amain.com/losi-aluminum-servo-arm-fut/p13553
Or
http://www.amain.com/team-losi-racin...protek/p268680
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Old 12-12-2014, 08:51 PM   #11244
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Quote:
Originally Posted by dpcardoza View Post
Think I read somewhere that the tlr 22 aluminum servo horn fits w/O modification. Anybody know which one
http://www.amain.com/team-losi-racin...tlr-22/p203507
Or
http://www.amain.com/losi-aluminum-servo-arm-fut/p13553
Or
http://www.amain.com/team-losi-racin...protek/p268680
The first one
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Old 12-12-2014, 09:32 PM   #11245
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I am working on my roller. got it going tonight. Seems the slipper clutch it out of adjustment. Tried tightening it but still didnt work. I assume that the pads should not be glazed over right? How do I fix this? thanks again.
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Old 12-12-2014, 11:42 PM   #11246
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Quote:
Originally Posted by katoom007 View Post
I am working on my roller. got it going tonight. Seems the slipper clutch it out of adjustment. Tried tightening it but still didnt work. I assume that the pads should not be glazed over right? How do I fix this? thanks again.
If you plan to stick stock get new pads and vented discs. Or look at the avid or schelle solution.
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Old 12-13-2014, 04:07 AM   #11247
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katoom007 -Just get some 600 grit sandpaper and sand the disks till the glaze is gone. Then good as new.
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Old 12-13-2014, 07:36 AM   #11248
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Quote:
Originally Posted by katoom007 View Post
I am working on my roller. got it going tonight. Seems the slipper clutch it out of adjustment. Tried tightening it but still didnt work. I assume that the pads should not be glazed over right? How do I fix this? thanks again.
If your running stock(17.5) just get the exotek slipper eliminator. I just installed one on my buggy, it made a big difference for me.
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Old 12-13-2014, 01:33 PM   #11249
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Quote:
Originally Posted by Potoczak View Post
If your running stock(17.5) just get the exotek slipper eliminator. I just installed one on my buggy, it made a big difference for me.
well after tearing into the slipper a little more I have found that the pads are out of a Team associated. I am also running a 8.5 motor. The spring on the clutch is crushed and still slipping. time to upgrade I guess. I will check out these other clutches you mentioned.
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Old 12-13-2014, 06:27 PM   #11250
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When doing the sideways battery, how far down are you dremeling the side pods?
All the way to the chassis?
can some one post a picture of there chas sis after its been dremeled out
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Last edited by mdwaeracer; 12-13-2014 at 07:58 PM.
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