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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 10-29-2012, 01:22 PM   #2206
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rb6 comes with ceramic bearings?
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Old 10-29-2012, 01:28 PM   #2207
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No I think they are are either carbide or tungsten steel.
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Old 10-29-2012, 02:10 PM   #2208
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rb6 comes with ceramic bearings?
no but they are sooo smooth
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Old 10-29-2012, 02:13 PM   #2209
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http://www.rcdriver.com/rcd/index.ph...rb6-2wd-buggy/

"Body more than 10 different body styles were in the wind tunnel and track testing, to achieve the perfect blend of performance and appearance."

Wind tunnel, really or seriously? It takes a pretty big funding for a wind tunnel.
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Old 10-29-2012, 02:14 PM   #2210
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Originally Posted by superspeed View Post
http://www.rcdriver.com/rcd/index.ph...rb6-2wd-buggy/

"Body more than 10 different body styles were in the wind tunnel and track testing, to achieve the perfect blend of performance and appearance."

Wind tunnel, really or seriously? It takes a pretty big funding for a wind tunnel.
are you gonna nit pick the car apart or build it and race it?
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Old 10-29-2012, 02:15 PM   #2211
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Wind tunnel, really or seriously? It takes a pretty big funding for a wind tunnel.
Not really. It doesn't require you do your testing at Nasa. Iv seen wind tunnel's rates at around $500 an hour. I imagine you could get enough data to find a body that works best with the car (and your goal), in a day of testing. Call it $4k.
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Old 10-29-2012, 02:18 PM   #2212
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Not really. It doesn't require you do your testing a Nasa. Iv seen wind tunnel's rates at around $500 an hour. I imagine you could get enough data to find a body that works best with the car (and your goal), in a day of testing. Call it $4k.
even better..

http://www.youtube.com/watch?v=i0Q0nx0_Dgc
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Old 10-29-2012, 05:29 PM   #2213
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Guys building my car now for the most steering should I go with the 4 in front hub over the zero just checking before I put it together! Thanks guys
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Old 10-29-2012, 05:45 PM   #2214
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Guys building my car now for the most steering should I go with the 4 in front hub over the zero just checking before I put it together! Thanks guys
For the most aggressive steering, run 25 in the suspension hanger and 0 in the inserts. The car has a TON of steering out of the box.. it's the most aggressive car iv ever driven. Iv been doing nothing but setup tweak to try and calm the car down. I love it
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Old 10-29-2012, 06:00 PM   #2215
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Any preference for pack style? I can go with any right now though have her wired for saddles. The cg location will be the same for shorty as it is for the saddles which is more towards the rear than the full pack I think.
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Old 10-29-2012, 06:06 PM   #2216
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Any preference for pack style? I can go with any right now though have her wired for saddles. The cg location will be the same for shorty as it is for the saddles which is more towards the rear than the full pack I think.
Do you mean the car's F/R weight balance? I think you would be correct. I haven't tried a shorty yet, been running a full normal 2s. With the normal 2s pack, I don't seem to be lacking any forward traction though.
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Old 10-29-2012, 08:21 PM   #2217
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Do you mean the car's F/R weight balance? I think you would be correct. I haven't tried a shorty yet, been running a full normal 2s. With the normal 2s pack, I don't seem to be lacking any forward traction though.
I have run an Orion WTS pack in it with 22gram weight in the middle pocket on pack. Was very good. Now running Short lipo as far forward as possible due to running Ko Propo RSX One10 servo. Great balance with this setup. Servo is AWESOME for this car. Have yet to run saddles, but would be interesting to try. Anyone got a pack I can borrow to test
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Old 10-29-2012, 08:24 PM   #2218
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Originally Posted by gas1313 View Post
Guys building my car now for the most steering should I go with the 4 in front hub over the zero just checking before I put it together! Thanks guys
A lot of guys in So Cal have been trying the 4 in front and seem to really like it. I will try mine on Wednesday and file a report.
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Old 10-29-2012, 08:25 PM   #2219
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Originally Posted by jpcopeland1 View Post
I have run an Orion WTS pack in it with 22gram weight in the middle pocket on pack. Was very good. Now running Short lipo as far forward as possible due to running Ko Propo RSX One10 servo. Great balance with this setup. Servo is AWESOME for this car. Have yet to run saddles, but would be interesting to try. Anyone got a pack I can borrow to test
Me too. Rsone10 up front. But Shorty backwards as we are always hunting for grip on my track.

Might try saddles next week for fun
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Old 10-29-2012, 09:46 PM   #2220
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Me too. Rsone10 up front. But Shorty backwards as we are always hunting for grip on my track.

Might try saddles next week for fun
Servo is so nice, so smooth, and for the size has mass torque, and with enhanced mode on my Eurus with the FHSS module, fast as h**l....
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