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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 01-13-2015, 12:13 PM   #11506
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Do you guys use Kyosho springs or is there a cheaper alternative?
I use Kyosho springs, and have been advised by those whom are very familiar with the brand at my local track to do so. That's not to say that I might not notice a difference if I used Losi or AE, but I figured I'd run brand specific.

The cheapest place I have found them is at www.losipartshouse.com
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Old 01-13-2015, 01:32 PM   #11507
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Originally Posted by beedee View Post
I use Kyosho springs, and have been advised by those whom are very familiar with the brand at my local track to do so. That's not to say that I might not notice a difference if I used Losi or AE, but I figured I'd run brand specific.

The cheapest place I have found them is at www.losipartshouse.com
losi parts house.
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Old 01-13-2015, 01:35 PM   #11508
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Yes I heard that the losi low freq springs work pretty well. I just already had a bunch of the tuning xgears so never bothered. I tend to replace them when I can no longer tell the colors haha. So next batch I will get some losis.
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Old 01-13-2015, 02:12 PM   #11509
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losi parts house.
ironic name eh. lol.

http://www.losipartshouse.com/Shocks...show=20&page=2
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Old 01-13-2015, 03:37 PM   #11510
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Ok.. so I'm switching my rear motor over to mid motor. I'm a little confused with the shims that go below and on top of the rear,rear suspension holder. There is supposed to be one below the suspension holder and one above. So my question is on the setup sheets which one are they referring to??? And what is the point of the shim thats above the suspension holder?? It seems like it just raises the shock tower.
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Old 01-13-2015, 03:52 PM   #11511
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what are they putting in front of the battery ? what are u guys doing to the side pods to mount the battery sideway?
what are the bearing sizes when using the v2 hubs?

http://ultralinehobbies.com/products...sc-kyoumw704-0
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Old 01-13-2015, 04:55 PM   #11512
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Originally Posted by Potoczak View Post
Ok.. so I'm switching my rear motor over to mid motor. I'm a little confused with the shims that go below and on top of the rear,rear suspension holder. There is supposed to be one below the suspension holder and one above. So my question is on the setup sheets which one are they referring to??? And what is the point of the shim thats above the suspension holder?? It seems like it just raises the shock tower.
You want to keep the same distance between the chassis and the tower,so if it calls for the .5 put that below the suspension mount and the 1.0 above and vice versa.
At least that's my understanding.
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Old 01-13-2015, 05:30 PM   #11513
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what are the bearing sizes when using the v2 hubs?

http://ultralinehobbies.com/products...sc-kyoumw704-0
These hub carriers feature 0 of outboard rear toe in, and bearing inserts that allow you to use either a 5x13/5x11mm axle bearing configuration, or a 5x10/5x10 bearing configuration. Additionally, the use of bearing inserts helps to improve drive train efficiency and extend the life of the hubs.
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Old 01-13-2015, 05:40 PM   #11514
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Which bearings do u recommend ?
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Old 01-13-2015, 05:45 PM   #11515
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From what I can remember, I would run the 5x10 inside and the 5x13 on the outside. I know that isn't a configuration I listed but the kit is 5x10 so you will have to get some 5x13's for the outside. I can't see myself buy a 5x11.
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Old 01-13-2015, 08:13 PM   #11516
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Originally Posted by Potoczak View Post
Ok.. so I'm switching my rear motor over to mid motor. I'm a little confused with the shims that go below and on top of the rear,rear suspension holder. There is supposed to be one below the suspension holder and one above. So my question is on the setup sheets which one are they referring to??? And what is the point of the shim thats above the suspension holder?? It seems like it just raises the shock tower.
Pete you always want the total amount of shims equal 1mm. So if it calls for .5 then u put .5 under holder and the other .5 u under bulkhead. If it Calls for 1mm the 1mm under holder and 0 under bulkhead
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Old 01-13-2015, 09:19 PM   #11517
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Default split pistons 4 hole

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Originally Posted by E73 View Post
Has anyone tried the Schelle 4-hole 1.4 + 1.1, 1.5 + 1.1, or 1.6 + 1.1 pistons? If so, please share you experiences including shock oil used etc. Going to try 1.4 in front and 1.6 in rear with 32/30 oil respectively.
The pistons come with a tuning guide that includes oil and track condition recommendations. Rule of thumb, use the same oils as:

1.6+1.1 is close to 2x1.7, use 30-32.5 wt in rear

1.5+1.1 is close to 2x1.6, use 27.5-30wt in rear; 30-32.5 in front

1.4+1.1 is close to 2 x 1.5, use in front with 32.5wt-35wt

The 4 hole pistons have less low speed damping= more traction and grip on small bumps, but they pack up on big jumps to prevent the car from bottoming.
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Old 01-14-2015, 03:54 AM   #11518
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Pete you always want the total amount of shims equal 1mm. So if it calls for .5 then u put .5 under holder and the other .5 u under bulkhead. If it Calls for 1mm the 1mm under holder and 0 under bulkhead
Quote:
Originally Posted by powerslave View Post
You want to keep the same distance between the chassis and the tower,so if it calls for the .5 put that below the suspension mount and the 1.0 above and vice versa.
At least that's my understanding.
Got it. Thanks for the reply guys.
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Old 01-14-2015, 08:07 AM   #11519
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Are there pics of tebo's rb6 with the battery mounted sideways? Are u guys cutting the side pods?
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Old 01-14-2015, 08:29 AM   #11520
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Originally Posted by yodace View Post
Are there pics of tebo's rb6 with the battery mounted sideways? Are u guys cutting the side pods?
Here you go...
Kyosho Ultima RB6 & RB6.6 Car Thread-img_2071.jpg

Kyosho Ultima RB6 & RB6.6 Car Thread-img_2072.jpg
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