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Kyosho Ultima RB6 & RB6.6 Car Thread

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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 02-21-2013, 05:41 PM
  #5341  
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Originally Posted by savageboy69
hey guys ive had some stuff come up and need to sell my rb6, its been ran one race weekend and had a chassis protector, comes with like 6 sets of springs, alum hubs, and misc parts, asking $415 or best offer just need it gone, check my forsale post or pm me
Where can I get a chassis protector?
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Old 02-21-2013, 06:10 PM
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Originally Posted by K_King
Cpt nailed it. I also find that more caster has more exit steering on low speed turns, almost making the car hook. But I have to test that more.
Ah ha. So it's not just me. I run the Japan setup which calls for +4 caster inserts, and at very low speeds right at exit the 6 will hook. Can I power steer the car away from ever reaching this scenario?
Last edited by gelshocker; 02-21-2013 at 06:14 PM. Reason: Typo
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Old 02-21-2013, 06:24 PM
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Originally Posted by Speedychris22
Where can I get a chassis protector?
it depends, if you just want the clear stick on ones jconcepts makes really good ones, or you could have a graphiics company make custom ones
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Old 02-21-2013, 06:37 PM
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So what is going to give me the most off power steering? My track is very small with 3 180 degree hairpin turns. I would link youtube videos of the track but my post count isn't high enough.

I've tried pro-dive 25 +4 caster and liked it a lot. Now i'm at 30 pro-dive 0 caster and it doesn't seem quite as good. I'm thinking of going to harder springs then red in rear.

Thanks!
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Old 02-21-2013, 06:51 PM
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Originally Posted by HalfManHalfGod
So what is going to give me the most off power steering? My track is very small with 3 180 degree hairpin turns. I would link youtube videos of the track but my post count isn't high enough.

I've tried pro-dive 25 +4 caster and liked it a lot. Now i'm at 30 pro-dive 0 caster and it doesn't seem quite as good. I'm thinking of going to harder springs then red in rear.

Thanks!
Turn and tap the brakes hard.
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Old 02-21-2013, 06:54 PM
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Originally Posted by HalfManHalfGod
So what is going to give me the most off power steering? My track is very small with 3 180 degree hairpin turns. I would link youtube videos of the track but my post count isn't high enough.

I've tried pro-dive 25 +4 caster and liked it a lot. Now i'm at 30 pro-dive 0 caster and it doesn't seem quite as good. I'm thinking of going to harder springs then red in rear.

Thanks!
Try 25/0
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Old 02-21-2013, 08:09 PM
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I put Brandon Collins setup on my car and it was an excellent base with just a few simple changes the car is hooked on my local track. Medium bite. Medium size and a good mix of technical for the size of the track. I went to white fronts with 32.5 Losi up front medium on the front camber link and that's it!
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Old 02-21-2013, 09:23 PM
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So what is going to give me the most off power steering? My track is very small with 3 180 degree hairpin turns. I would link youtube videos of the track but my post count isn't high enough.

Move the 1mm shim from behind the caster block to in front. Shortening the wheel base.
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Old 02-21-2013, 10:27 PM
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Originally Posted by HalfManHalfGod
So what is going to give me the most off power steering? My track is very small with 3 180 degree hairpin turns. I would link youtube videos of the track but my post count isn't high enough.

I've tried pro-dive 25 +4 caster and liked it a lot. Now i'm at 30 pro-dive 0 caster and it doesn't seem quite as good. I'm thinking of going to harder springs then red in rear.

Thanks!
Moving the battery forward if possible. Or lowering the axle height will give you more turn in but will lose some on exit
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Old 02-23-2013, 09:07 AM
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Hi,

those of you who are running a gear diff. Have you found a fitting hex screws ? If yes, which size/company screws ?

And what kind of grease are you putting into your transmission ? or none at all ?
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Old 02-23-2013, 09:34 AM
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Originally Posted by Hansie
Hi,

those of you who are running a gear diff. Have you found a fitting hex screws ? If yes, which size/company screws ?

And what kind of grease are you putting into your transmission ? or none at all ?
I've been pretty curious about gear diffs - seems easier to deal with and more consistent. Please update us on your findings with it ...
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Old 02-23-2013, 05:38 PM
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Finally got to race the car today. The car was great and drove well. Driver sucked. It was just one of those days.
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Old 02-23-2013, 09:06 PM
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Hey guy's.. Have a new RB6 coming making the switch from AE... One question are the wheels the same with the 5 ? Trying to get some ordered so I am ready to roll as soon as my kit is here ... Thanks in advance !!
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Old 02-23-2013, 09:13 PM
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Id like to know too.
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Old 02-23-2013, 09:31 PM
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Originally Posted by srs70
Hey guy's.. Have a new RB6 coming making the switch from AE... One question are the wheels the same with the 5 ? Trying to get some ordered so I am ready to roll as soon as my kit is here ... Thanks in advance !!
Yes they are. Highly recommend you check post #1 for a lot more useful info on this buggy...
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