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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 11-17-2015, 09:42 AM   #12751
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Originally Posted by symmetricon View Post
Zack Roger's setup is a very good starting point..
This one?

http://site.petitrc.com/setup/kyosho...nmans20140821/

I see a number of people talking about aftermarket steering racks. Any other changes recommended out of the box to start on the 2015?
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Old 11-17-2015, 11:26 AM   #12752
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I bought the aluminium steering rack, V2 0* hubs, as well as aluminium RF and RR suspension holders so I could adjust toe and track width. Other than that I put 2x1.6 with 35 in the front and 2x1.7's in the rear with 30 and the car is very good on medium bite clay as well as high bite topsoil.
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Old 11-17-2015, 02:16 PM   #12753
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Thanks, i have alot of things to try this weekend.
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Old 11-18-2015, 03:50 PM   #12754
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Have a bunch of the 2 hole rear arms. Instead of buying the new 3 hole does anyone have a pic of a 3 hole mod arm? Just want to make sure I'm drilling in correct spot.

Also when I bought my car used it came with lots of spares. It has a gear diff right now. It also came with the MIP 17.5 setup. What's the diff between it and a mod? Can I use the 17.5 with my 7.5 motor or is it 17.5 only?

Last edited by gixxer420; 11-18-2015 at 04:17 PM.
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Old 11-18-2015, 04:36 PM   #12755
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Originally Posted by gixxer420 View Post
Have a bunch of the 2 hole rear arms. Instead of buying the new 3 hole does anyone have a pic of a 3 hole mod arm? Just want to make sure I'm drilling in correct spot.

Also when I bought my car used it came with lots of spares. It has a gear diff right now. It also came with the MIP 17.5 setup. What's the diff between it and a mod? Can I use the 17.5 with my 7.5 motor or is it 17.5 only?
Measure the distance between the 2 holes you have and go that same distance center of the arm.

The 17.5 setup is all aluminum. Your slipper setting will be critical to make it last. I set mine the way Tebo does on youtube. 1-2 inches of front end lift when you grab the throttle. I might back off from that with all aluminum drivetrain and keep a close eye on it.
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Old 11-18-2015, 04:54 PM   #12756
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Preciate the help.
So the 3rd hole will be drilled closer to the out drive instead of the wheelside?
I can use the 17.5 with my 7.5 as long as I keep and eye on it since it's all aluminum. I may just take the MIP out drives out and put standard in then I would really have to worry since I would be pretty much stock besides the MIP diff
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Old 11-18-2015, 09:31 PM   #12757
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hey nitroargi i finally have time to post what i found with the steering rack brace. for one i found that the directions from the buggy to the sc are different as the buugy calls for 1mm spacer under the bearings and the sc calls for it on top. any how i remo ed them from the buggy and put the 2 thin shims that came with the brace under the bearings and the brace ot the top by itself.no binding issues and car felt better. notsure if its because of the brace or because i lowered the rack 1mm. anyway i like it abd it seems fine.any questions hit me up
Thanks for lookinf that up...what was the effect of the rack? Did it make the steering more responsive?
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Old 11-18-2015, 10:15 PM   #12758
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Originally Posted by gixxer420 View Post
Preciate the help.
So the 3rd hole will be drilled closer to the out drive instead of the wheelside?
I can use the 17.5 with my 7.5 as long as I keep and eye on it since it's all aluminum. I may just take the MIP out drives out and put standard in then I would really have to worry since I would be pretty much stock besides the MIP diff
Yes the 3rd hole is inboard tward the ourdrive.

And maybe......
My MIP ball diff didn't jive with the stock ball diff. Might have to replace the whole unit.
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Old 11-19-2015, 05:22 AM   #12759
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Yes the 3rd hole is inboard tward the ourdrive.

And maybe......
My MIP ball diff didn't jive with the stock ball diff. Might have to replace the whole unit.
Thanks
This 2wd stuff is all new to me.
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Old 11-19-2015, 05:51 AM   #12760
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Originally Posted by RokleM View Post
This one?

http://site.petitrc.com/setup/kyosho...nmans20140821/

I see a number of people talking about aftermarket steering racks. Any other changes recommended out of the box to start on the 2015?
That's it...
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Old 11-20-2015, 04:10 AM   #12761
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Originally Posted by nitroargi View Post
Thanks for lookinf that up...what was the effect of the rack? Did it make the steering more responsive?
like i said i was running my rack on top of those 1mm shims so after getting rid of those the car seems to be less agressive when u are turning with the nose compressed. it helped my bump steer that stablizer didnt really do much except make the steering more consistant and the car seems to track more straight
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Old 11-21-2015, 09:26 PM   #12762
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How who makes this top battery brace and post?
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Old 11-21-2015, 09:36 PM   #12763
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Saw that one but didn't like 4 screws and 2 different tools. It's just screwed to the waterfall tabs and a backwards battery brace. Get a sheet of whatever and cut one out.
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Old 11-21-2015, 10:00 PM   #12764
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How who makes this top battery brace and post?
http://www.amainhobbies.com/rc-cars-...r10005/p469218
http://www.amainhobbies.com/rc-cars-...w520gm/p222069
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Old 11-21-2015, 10:09 PM   #12765
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Thanks all

Just trying to find a easy way to make the side way work and I see I need to get some side foam for each side of the pack to fill up the extra space.

What is the easies way to have a top battery brace? I just got it Friday.

And yes the 4 screws is a pain I see now.
Again thank you
And I love the shock package on this kit.
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