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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
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

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Old 03-08-2014, 02:30 PM   #10051
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Originally Posted by bigdaddy13 View Post
Rear or mid? And are you running all the screws?
Mid. All side pod screws are in. Motor brace screws are not in.
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Old 03-08-2014, 04:19 PM   #10052
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Originally Posted by VenturaDC View Post
DE Speedline rims fit awesome as well, plus they come in multiple colors.
+1
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Old 03-08-2014, 04:20 PM   #10053
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Originally Posted by bigdaddy13 View Post
Rear or mid? And are you running all the screws?
Mid all screws in
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Old 03-08-2014, 05:54 PM   #10054
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+1
Ok, i have heard good things about the de wheels.
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Old 03-08-2014, 10:10 PM   #10055
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well I am about to order this car , which will be my first 2wd buggy , and just have a couple of newb questions . what is a good servo for this type of vehicle ? do I need to get a low profile servo if i am going to run rear motor , with a regular two cell battery from my touring car ? thanks !
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Old 03-09-2014, 09:56 AM   #10056
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Hey guys I just raced my rb6 for the first time last night and loved won a heat and qualified 2nd. Now I am running rear motor and the rear is locked but has a on power push. I am wondering if mid motor would be better what's everyone's opinion with this car?
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Old 03-09-2014, 11:13 AM   #10057
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Originally Posted by Jspires688 View Post
Hey guys I just raced my rb6 for the first time last night and loved won a heat and qualified 2nd. Now I am running rear motor and the rear is locked but has a on power push. I am wondering if mid motor would be better what's everyone's opinion with this car?
From ride height adjusts to just letting off the throttle a bit, an on power push can be from many different things. Mid motor is faster as long as you have "medium" grip or more. I have yet to try mine outdoors at an actual "loose" track but i have the feeling it might be just fine.
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Old 03-09-2014, 01:26 PM   #10058
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I have yet to try mine outdoors at an actual "loose" track but i have the feeling it might be just fine.
I dont think the RB6 will do well at all in a loose outdoor setting. Our track when good is a solid medium grip track, sometimes might push a semi high grip track, but when its dry its miserable to drive, youd have to put so much weight in the back it wouldnt even be worth it. my car drives really well when we have a good water schedule but when we are at the tail end of the heats i might as well pull it off the track, i lose easily a lap and a half.
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Old 03-09-2014, 01:41 PM   #10059
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Quote:
Originally Posted by purple haze View Post
well I am about to order this car , which will be my first 2wd buggy , and just have a couple of newb questions . what is a good servo for this type of vehicle ? do I need to get a low profile servo if i am going to run rear motor , with a regular two cell battery from my touring car ? thanks !
You don't need a low profile servo. I am running mine with a full size servo but the receiver is mounted along side the battery. So the layout is like this, Servo, Battery, Speed Control, Motor Brace, Motor.

If you do get a low profile servo you could probably run the receiver behind it instead of on its side. However, I have yet to find a low profile servo that I feel comfortable with its speed and torque output.


Quote:
Originally Posted by Jspires688 View Post
Hey guys I just raced my rb6 for the first time last night and loved won a heat and qualified 2nd. Now I am running rear motor and the rear is locked but has a on power push. I am wondering if mid motor would be better what's everyone's opinion with this car?
Can you post your setup?
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Old 03-09-2014, 01:56 PM   #10060
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Hey guys, have any rb6 owners come from the b4.2/c4.2 platform and can give a short comparison. I currently run c4.2 and deciding between rb6 or b5 and b5m
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Old 03-09-2014, 03:39 PM   #10061
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Setup is
Pink springs front red rear
Front camber link 1mm washer inside 1mm outside inside middle hole
Steering reversed with 1 mm washer inside none outside
Rear camber link inside middle with 2mm washer outside outside hole 1mm washer
Ride hieght started out 23f 22r but I raised the rear a few turns throughout the night to help with the push. Hope that's not to confusing
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Old 03-09-2014, 03:41 PM   #10062
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I was also able to drive the rear motor b5 back to back with my rb6 last night and I must say the rb6 was way faster through the whoop section and tracked straight way better under power
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Old 03-09-2014, 03:52 PM   #10063
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Was rb6 in rear motor too?
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Old 03-09-2014, 04:36 PM   #10064
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Yes both we're rear motor
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Old 03-09-2014, 04:40 PM   #10065
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Originally Posted by Graham11 View Post
Hey guys, have any rb6 owners come from the b4.2/c4.2 platform and can give a short comparison. I currently run c4.2 and deciding between rb6 or b5 and b5m
I came from a B4.2 before i got my RB6, the last set up i ran was Maifields set up from CRCRC and it was the best set up i had run to date. I wanted the option of mid motor without having to have two cars so i got the RB6 used already set up in MM. I was shocked at how easy this car is to drive and especially jumping right into MM with a 7.5 motor. i think what shocked me the most is that this car turned better than my B4.2, the RB6 jumps better as well in the MM set up. Ive become so comfortable at MM that i havent even tried the RB6 in RM form.
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