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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 03-30-2013, 10:54 PM   #5971
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Ahahah well that's why you got second...if you would have geared higher you would have abviously won...!!!
Gearing was more than enough for the layout and going against Micheal Losi is no easy task the kid was on fire all week.
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Old 03-31-2013, 07:46 AM   #5972
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Originally Posted by brwn bggr View Post
I was running some laps on a test track here in battle creek Michigan...very loose track,with light gravel and dirt mix...buggy was wonderful...then that alarm sounding noise...a small piece of debris had found its way into the slipper gear housing and several prices of very small stone were impregnated into both...spur and opinion...I'm running an aluminium pinion...I think the garbage got in through the motor bolt hole...is there a gasket or seal to correct this issue...
I use aluminum tape for sealing up ducting. I use a hole punch that I punch vent holes in tires to put a hole in the middle. Then slip that hole over the output shaft of the motor and trim the outside to the motor profile with an exacto. Clear the two taps that you are going to mount the motor with and that will keep dirt and small rocks from getting in. Basically a homemade gasket.

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Old 03-31-2013, 08:54 AM   #5973
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Installed and ran the AVID slipper clutch last night. Incredibly tunable, super easy to set, great feel, 100% consistent through the entire run. I would say better than the kyosho slipper. A tad pricy, but worth it for me. AND you get get 66, 69, and 72 spurs for you 17.5 drivers.
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Old 03-31-2013, 09:01 AM   #5974
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do they make allunminum RF2 or do they come in RF only for rear inner hinge pin holders for rear? Do they even make the RF2? so confused. im new to kyo. maybe a link or whatever u guys can help thanks
The very first post for this thread has all the info & specific part numbers for the Alum Rear hangers... It's worth the read if this is your first K car
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Old 03-31-2013, 09:52 AM   #5975
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Thanks turbo....for the input on a fix for the slipper box seal...being both pinion and spur have gone south,and I need to order the spur,might as well upgrade...so a triad shaft and slipper are on the way...maybe not a bad day after all...grin!
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Old 03-31-2013, 10:01 AM   #5976
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Thanks turbo....for the input on a fix for the slipper box seal...being both pinion and spur have gone south,and I need to order the spur,might as well upgrade...so a triad shaft and slipper are on the way...maybe not a bad day after all...grin!
I switched to the Kyosho steel pinions, cause the aluminum gall too easily. I think the Kyosho spur/pinion set is the smoothest and quietest of anything I have run. Interesting idea about the Triad slipper, might have to try that one. Not sure, but don't you have to change the output shaft as well with the triad?
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Old 03-31-2013, 10:57 AM   #5977
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^^^ If you want to upgrade to the Avid Triad slipper, you do need to purchase their Kyosho specific top shaft. While the Kyosho stock slipper is really good, the Triad (in my opinion!), an awesome upgrade. The consistency, ability to put the power down w/o wheelspin and spur selection are 2nd to none!
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Old 03-31-2013, 11:49 AM   #5978
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Originally Posted by desertracerdad View Post
^^^ If you want to upgrade to the Avid Triad slipper, you do need to purchase their Kyosho specific top shaft. While the Kyosho stock slipper is really good, the Triad (in my opinion!), an awesome upgrade. The consistency, ability to put the power down w/o wheelspin and spur selection are 2nd to none!
Sounds like something good to try for stock class. What about mod or scr? Around here people been having trouble burning them up in mod or sc
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Old 03-31-2013, 12:56 PM   #5979
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Anyone try the wide aluminum wheel hubs?
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Old 03-31-2013, 01:13 PM   #5980
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How would people compare the stock slipper Vs the WC vented slipper Vs the avid?
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Old 03-31-2013, 01:27 PM   #5981
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Originally Posted by desertracerdad View Post
The very first post for this thread has all the info & specific part numbers for the Alum Rear hangers... It's worth the read if this is your first K car
Thanks
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Old 03-31-2013, 03:32 PM   #5982
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How would people compare the stock slipper Vs the WC vented slipper Vs the avid?
Stock slipper pads are junk. I only ran the avid for their 69 tooth spur gear. Now that I'm no longer running stock I'm using the vented plates red pads and 78 t Kyosho spur.
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Old 03-31-2013, 04:14 PM   #5983
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Originally Posted by mikeyscott View Post
How would people compare the stock slipper Vs the WC vented slipper Vs the avid?
good better best?
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Old 03-31-2013, 04:23 PM   #5984
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I am looking for the part numbers for the plastic washer spacers on the four bolts that hold the tranny case to the motor plate. Exploded view shown um508c which is wrong, cause the have the um508c in front of me and there are not on that.

Also the motor centering spacer is also listed as um508c and that is not on it as well. Wanted to put together a emergency complete transmission for the spare parts box.

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Old 03-31-2013, 04:57 PM   #5985
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ny 2mm shim will work as long as it sits flush on the tranny case. u can use plastic ones and trim thod so it sits flush. or shorten your tranny screws
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