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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 01-16-2013, 01:40 PM   #4366
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Has anybody successfully replaced the pins on the stock CVDs? I think I remember somebody saying that they were able to do it with the Hudy tool.
I heard it can be done as well.. but where to get the pins? how much is the tool? I know nada.
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Old 01-16-2013, 01:48 PM   #4367
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I heard it can be done as well.. but where to get the pins? how much is the tool? I know nada.
99 bucks. I have the tool and it does NOT work. Pins are too wide its designed to remove 1/8 size pins. The xray xb4 has 1/8 size pins in 1/10, thats the only car it will work for.

People use chain breakers but I do not have one myself. Anyone know when the MIP shafts are coming?
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Old 01-16-2013, 01:53 PM   #4368
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How about trying it off the kyosho pit mat and on something solid?? Would like to see if that makes a difference.
I was wondering the same thing so I also weighed it on our concrete floor and it made no difference, the picture looked way better on the K mat.
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Old 01-16-2013, 01:56 PM   #4369
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I recently changed all the pins on my Kyosho cars (FS2 & RB5) using a hammer, a pinion (to let the pin come out as you hammer it) and an old 1.5mm wrench.

Take your time and work with protective glasses, on a hard floor, it's not that hard to do.
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Old 01-16-2013, 02:00 PM   #4370
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I recently changed all the pins on my Kyosho cars (FS2 & RB5) using a hammer, a pinion (to let the pin come out as you hammer it) and an old 1.5mm wrench.

Take your time and work with protective glasses, on a hard floor, it's not that hard to do.
Nice what size pins did you put back. I am scared of doing it that way might break a hand (I have sanded off chunks off my fingers with a belt sander once).
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Old 01-16-2013, 02:03 PM   #4371
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And where did you find the pins?
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Old 01-16-2013, 02:06 PM   #4372
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Put the exotek rack and bell cranks on. If you use the Kyosho metal servo horn you'll have to grind on one of the bell cranks as well as the horn.

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Old 01-16-2013, 02:14 PM   #4373
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WTH? How did you get it that low? I did everything I could and still am at 1529. Slipper eliminator, no gear cover, small bore shocks, low pro servo, titanium everything. Lets see a pic without the body on.
Spektrum S6070 low profile servo, transponder, small Airtronics RX, Tekin RS Pro ESC, Fantom shorty pack, Fantom 17.5 motor. I wired the ESC with TQ 13 gauge wire and kept them as short as possible. The car also has an Avid Triad top shaft and slipper (entire Avid setup 7 grams lighter than stock setup with AE spur). It has diggity designs battery braces with Kyosho aluminum posts and RB5 carbon strap cut smaller. When it was weighed in the photo it had the three Exotek steering parts and the Exotek rear U-brace. I also have 14 grams of weight taped to the servo in that pic.

I originally had an Orion R10 Pro ESC in it but wanted to redo the wiring so I took it out and thought I would weigh it compared to the Tekin. Orion with wire was at 70 grams and the Tekin with wire was 44 grams if I remember correctly so that's 26 grams right there. My multi colored airbrushed body you see in the pic is quite a bit lighter than my all white spray canned special. A one color airbrushed body would prob save quite a bit of weight. The aluminum rear hubs with the bigger bearings weigh almost 20 grams more than the plastic which I have yet to break with some pretty good crashes. Some ideas......I think I could probably get it in the low 1480's or maybe even the 1470's if I really took the time to do it, but I don't have the time so I won't.
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Old 01-16-2013, 02:22 PM   #4374
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Yes I have replaced the pins on my 1/10 & 1/8th shafts. Got the pins from McMaster-Carr online ,50 for around 10 bucks,Very cheap. Just used a punch and hammer to remove and install with alittle CA, Never had one come out.
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Old 01-16-2013, 02:23 PM   #4375
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Question - Do any of the pro Kyosho driver (Tebo, King), ever get on here to help answer questions from us mear mortals??

I know that pro's from other manufacturers like Durango, AE, Losi, cant do enough to help out.

Dont get me wrong, im Kyosho through & through, but to me some of the top Kyosho guys seem a little quiet.
I have seen a couple of the K drivers get on here but its not as much as we would all like.

Ive seen a few non paid drivers like Zack rogers (been awhile) Jayson Pang, Josh Mitchell on here. Its not that often though.
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Old 01-16-2013, 02:51 PM   #4376
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Yes I have replaced the pins on my 1/10 & 1/8th shafts. Got the pins from McMaster-Carr online ,50 for around 10 bucks,Very cheap. Just used a punch and hammer to remove and install with alittle CA, Never had one come out.
If you have the part number handy can you post it? I like the xray method of outdrive and pin. They make the pin really soft so the outdrive stays pristine and you can refresh your cars very cheaply. So I will try to find that size pin in a xray part. Mcmaster I believe sells different hardness as well.

ALso I like the pinion idea very much will try it on the busted shafts I got tonight .
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Old 01-16-2013, 03:30 PM   #4377
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So if you could ask a kyosho pro....what kind of questions would you ask? I'm in Portland and usually see kyosho's team manager at the track. I could ask a list of questions and see what he says.

What would be your guy's top 5 questions?
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Old 01-16-2013, 03:50 PM   #4378
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Originally Posted by aloksatoor View Post
If you have the part number handy can you post it? I like the xray method of outdrive and pin. They make the pin really soft so the outdrive stays pristine and you can refresh your cars very cheaply. So I will try to find that size pin in a xray part. Mcmaster I believe sells different hardness as well.

ALso I like the pinion idea very much will try it on the busted shafts I got tonight .
McMaster-Carr part # 91595A026 alloy steel dowel pin 2mmx10mm Breaking strength 700lbs $7.36 for a bag of 50
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Old 01-16-2013, 03:55 PM   #4379
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Thanks!!
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Old 01-16-2013, 04:29 PM   #4380
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Originally Posted by aloksatoor View Post
Nice what size pins did you put back. I am scared of doing it that way might break a hand (I have sanded off chunks off my fingers with a belt sander once).
Quote:
Originally Posted by t0p_sh0tta View Post
And where did you find the pins?
KYO97018-098 is the part number, A-Main carries them.
Dimensions seem to be 2x9.8mm.
http://www.amainhobbies.com/product_...o-2x98mm-Pin-5
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