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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech ForumsThread 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 11-08-2012, 09:44 AM
  #2461  
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I took a lil break for about 8 months and Im looking to get ready for 2013. I owned a Losi 22, DEX210, and B4.1 Worlds. I really liked the DEX210 but at the time it was hard to find parts for the car, traction was great, steering was good slight push on power, pain in the a$$ to work on when club racing.
So I sold it and got a losi, what a bad idea...lol..Sold the losi and got a B4.1 Worlds..Wow I was instantly faster with this car added Kyosho BB springs and was really happy...Then I took break and sold the kit. I never got around to trying the K-Cars but I am considering a RB6. How does this car compare to the B4.1 Worlds? Is the kit that good to carry a $450 price tag?
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Old 11-08-2012, 09:46 AM
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they coulda sold it for $550 and i would have bought it after driving one.. and RC is a budgeted hobby for me.

its easy to work on, traction is great on/off power. haven't broken a single part (knock on wood) and i continue to beat on it.

and will turn inside any car on the track
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Old 11-08-2012, 10:10 AM
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+1 on that ...this car is worth every penny ...some of the other racers at my local track are going to be buying the RB6 they can't keep up with my 6
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Old 11-08-2012, 11:11 AM
  #2464  
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Originally Posted by aloksatoor
Dang I feel like a doofuss.


I keep a tiny "L" shaped allen wrench in my pit just for this. I slide the short end of the allen into the hole in the outdrive, and you tighten or loosen the diff by turning the right wheel.
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Old 11-08-2012, 12:31 PM
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Originally Posted by Lonestar
Thanks Kraig.

I think the fairer way would be to link to David Ronnefalk's site directly, where petitrc actually got their pics from. Don't even get me started on that website policy (or absence thereof) about "hosting" pics, there was a massive discussion about this lately that imho sealed the fate of the orange site...

http://www.davidronnefalk.com/index....ma-rb6-gallery

cheers guys!

Paul
You are right as I first saw them on his site. I also wanted to showcase others build as well as I had to use them as a reference as well when building the front end of my car.
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Old 11-08-2012, 01:24 PM
  #2466  
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Originally Posted by fastestwon
+1 on that ...this car is worth every penny ...some of the other racers at my local track are going to be buying the RB6 they can't keep up with my 6
Nice....
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Old 11-08-2012, 02:48 PM
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Default Rb6

Originally Posted by BIGTIME
I took a lil break for about 8 months and Im looking to get ready for 2013. I owned a Losi 22, DEX210, and B4.1 Worlds. I really liked the DEX210 but at the time it was hard to find parts for the car, traction was great, steering was good slight push on power, pain in the a$$ to work on when club racing.
So I sold it and got a losi, what a bad idea...lol..Sold the losi and got a B4.1 Worlds..Wow I was instantly faster with this car added Kyosho BB springs and was really happy...Then I took break and sold the kit. I never got around to trying the K-Cars but I am considering a RB6. How does this car compare to the B4.1 Worlds? Is the kit that good to carry a $450 price tag?
You can't compare the RB6 to the Losi22,DEX210 or the B4.1, it's in a league of its own.
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Old 11-08-2012, 03:12 PM
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I priced a mid motor conversion (since the kit already has parts) around 200$ from speedtech. They have some parts missing out of stock. So next is to update the ol WC up to spec in mid motor.

The most important was the rear outer hinge pins which have those two m3 nylocs at the end. I can bypass by just going with rb5 rear arms though. Thats about the only thing I hate on the rb6, that and the body hehehe which is next to nothing compared to other cars I have owned.
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Old 11-08-2012, 03:12 PM
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Originally Posted by Cpt.America
Thanks, and not a problem! That's usually how it is when you travel... I could of brought my wife's RB5 for you to drive though... She has en entire set up. Next time
Sweet. Sounds great.
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Old 11-08-2012, 03:50 PM
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Running WCRC/OCRC, what oil should I start with on provided pistons?

I've got AE 27.5, 32.5 and Losi 25,27.5,30,40 oil on hand.
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Old 11-08-2012, 03:58 PM
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I have 475 ptrc and 425 ptrc front and back with stockers. That is around 42 37.5 I believe converted to AE wts. I just ran her last sat for the first time. I will get the 1.3 pistons in another set of shocks to try those out with lighter oils.
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Old 11-08-2012, 04:02 PM
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Originally Posted by lagcisco
Running WCRC/OCRC, what oil should I start with on provided pistons?

I've got AE 27.5, 32.5 and Losi 25,27.5,30,40 oil on hand.
Check out Jason's setup on his web page...

www.jasondias.com
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Old 11-08-2012, 04:27 PM
  #2473  
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I only have the stock pistons, 5 hole.

Originally Posted by lbckevin
Check out Jason's setup on his web page...

www.jasondias.com
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Old 11-08-2012, 04:37 PM
  #2474  
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Hi All,

Bunch of new parts came in as promised.

http://www.exotekracing.com/kyosho/
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Old 11-08-2012, 04:42 PM
  #2475  
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Originally Posted by MikeR
Hi All,

Bunch of new parts came in as promised.

http://www.exotekracing.com/kyosho/
You the man! Ordering now!
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