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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 11-15-2013, 06:53 PM   #8656
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Does that gear require the Avid pads as well? any other things needed? to use this gear? Slipper plates? Slipper pads?

Thanks for your help
You need the Kyosho Top Shaft from Avid and also this below.

http://www.amainhobbies.com/product_...Clutch-81T-84T

It really is a great setup and Avids Customer service is top notch
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Old 11-15-2013, 07:12 PM   #8657
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Default spur gear

I'll grab the top shaft and the spur gear conversion

Thanks!!!
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Old 11-15-2013, 07:54 PM   #8658
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No problem.

It is this one here. They have different top shafts but this is the one you want.

http://www.amainhobbies.com/product_...minum-Topshaft
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Old 11-15-2013, 10:24 PM   #8659
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Originally Posted by kes7u View Post
Also change to the short shock bottoms.
Not a requirement, you can get the same droop with mediums.
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Old 11-15-2013, 10:31 PM   #8660
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Not a requirement, you can get the same droop with mediums.
Only difference between small & medium would be where the threaded shock collar is on the shock body correct? Collar higher with medium & lower with small?
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Old 11-15-2013, 10:56 PM   #8661
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I have a couple of question's. #1 where can I get a spring kit for my buggy both front and rear. #2 can I run a stick pack in the mid motor layout????? #3 is the kit durable??? #4 is it easy to tune???
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Old 11-16-2013, 06:04 AM   #8662
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Default spur gear

Awesome, thanks for your help!

This will be my first big race in a few years, and my first time running in the 17.5 class. Open is our usual class where I race.

I just picked up an RB6, this machine looks great! Cant wait to hit the track with it!
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Old 11-16-2013, 06:25 AM   #8663
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I have a couple of question's. #1 where can I get a spring kit for my buggy both front and rear. #2 can I run a stick pack in the mid motor layout????? #3 is the kit durable??? #4 is it easy to tune???
You can get the Avid Spring kit, but I only run the Kyosho Springs on mine. I don't know if anyone has tried AE 12mm springs and I'm not sure if they will even fit.

Kit is durable but then again I don't crash too often.
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Old 11-16-2013, 07:05 AM   #8664
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You can get the Avid Spring kit, but I only run the Kyosho Springs on mine. I don't know if anyone has tried AE 12mm springs and I'm not sure if they will even fit.

Kit is durable but then again I don't crash too often.
Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???
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Old 11-16-2013, 07:22 AM   #8665
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I don't think a full stick will work in mid motor but maybe others here can chime in on this. I know it will in rear motor though.

All I run is saddle packs or shorty in mid motor.

Car is easy to tune.....except I wish the rear bull stud to the bulkhead was a little easier to access.
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Old 11-16-2013, 07:26 AM   #8666
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Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???
I'm pretty sure its made to fit a full stick, but you would have to mount the receiver and speedo up high.
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Old 11-16-2013, 08:04 AM   #8667
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Originally Posted by E73 View Post
Only difference between small & medium would be where the threaded shock collar is on the shock body correct? Collar higher with medium & lower with small?
Only because the actual length is 2mm longer.

They droop will be the same if adjusted but you will have less CVD plunge.
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Old 11-16-2013, 03:40 PM   #8668
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Originally Posted by TheRcworld101 View Post
Thanks but can you run a stick in the mid motor layout or do you need to run shorty or saddle.And is the kit easy to work on and easy to tune???
Quote:
Originally Posted by MikeXray View Post
I'm pretty sure its made to fit a full stick, but you would have to mount the receiver and speedo up high.
MikeXeay is right you can but do need to mount things high I checked my MM RB6 to see if it would work.
Plus have a look at this link and there is a car about half way down in MM with a full pack.

Yes this car is easy to work on and tune.
I have only changed about 3 things from the kit set up.
The best thing I changed was to put the GHEA 4x1.3mm pistons in it.

I guess when it comes to the springs it depends on the track to what you need.
My rear mount dirt car the kit springs work very very well but I'm still working on the springs for my carpet mid mount car and I am going to try the kit springs again. (TLR springs fit and work)
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Last edited by KalEl63; 11-16-2013 at 06:02 PM.
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Old 11-16-2013, 05:29 PM   #8669
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Originally Posted by Jochim_18 View Post
Raise the tranny 1mm.. And if you shim the RR hanger 2mm you'll get zero anti-squat..
I've never heard of anyone raising the tranny on the rb6. I don't think its necessary. I thought only the 22 guys were doing it.
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Old 11-16-2013, 10:03 PM   #8670
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Anyone have a good setup for MOD on a loamy track in MM? If not I might just go back to RM and not deal with out ever changing track conditions.
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