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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 07-17-2013, 01:15 PM   #7621
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Quote:
Originally Posted by kyoshoracer77 View Post
I never been on a sugared track. Y don't u like it??
The grip is great but tire wear is astronomically high. I can't afford to keep tires on my cars when I am going through a set every 1-2 runs. With 2wd buggy it just eats the rears, but I also run ebuggy and a full set of four 8th scale tires, foams and rims is expensive.

I ran on a sugared track this past weekend. Tire wear started off as almost none, but as the groove formed and grip went up the tire wear went through the roof.
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Old 07-17-2013, 05:41 PM   #7622
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We have a sugared out door track here in Sydney. I personal don't like it when it's sugared that morning, but it's great if its sugared 1-2 days before race day. Just feels more natural but still super grip.

In winter it's really hard on tires 1-2 runs etc. In summer the tires still wear in 1-2 runs but the performance doesn't drop off that noticeable so we all end up running slicks. The sugar also helps hold the track together during bad weather witch is important for an out door track.
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Old 07-17-2013, 05:45 PM   #7623
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Has anyone run the new orion vst2 yet?

How would you compare it to vst1 and lrp x12 in 7.5-8.5 winds?
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Old 07-17-2013, 11:36 PM   #7624
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Originally Posted by Rfury View Post
Expecting some high grip I see.

Are they sugaring the track this year? I am really not liking the trend of big races this year sugaring the track after Cactus did it.
No sugar needed its a true blue groove track. The pits where 106 degrees and the track is already starting to groove up really good, everyone is switching over to mm cars. One more day of practice before racing on Friday and it should be very fast with very high traction. Tire wear is pretty high.

Go on jp's Facebook for videos..
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Old 07-18-2013, 03:21 PM   #7625
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Originally Posted by What up? View Post
No sugar needed its a true blue groove track. The pits where 106 degrees and the track is already starting to groove up really good, everyone is switching over to mm cars. One more day of practice before racing on Friday and it should be very fast with very high traction. Tire wear is pretty high.

Go on jp's Facebook for videos..
I prefer tracks like that over ones that have been enhanced using additives such as sugar.

If kept damp,a track like that will eat tires slower but in that heat that is not an option.
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Old 07-18-2013, 08:45 PM   #7626
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Great car here for sale guys, only 3 weeks old

3 week old Kyosho RB-6 for sale
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Old 07-18-2013, 11:54 PM   #7627
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Quote:
Originally Posted by Jam-Air View Post
Great car here for sale guys, only 3 weeks old

3 week old Kyosho RB-6 for sale

Bump for a great buggy is like-new shape.

I'm curious, what's the logic for switching to the Rb5 front a-arms?
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Old 07-19-2013, 01:13 AM   #7628
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You get the RB-5 arms for free when you buy the UM521-1 arms. For some reason kochi doesn't sell arms in sets, they sell them one front and rear per pack
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Last edited by Jam-Air; 07-19-2013 at 01:14 AM. Reason: Typo
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Old 07-19-2013, 06:43 AM   #7629
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Please use the for sale section.
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Last edited by Kraig; 07-19-2013 at 08:46 AM. Reason: Posting stuff for sale.
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Old 07-19-2013, 08:45 AM   #7630
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When did this become a for sale thread? Please use the appropriate section. Thanks!
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Old 07-19-2013, 09:26 PM   #7631
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anyone having issues with the shock leaking oil from the top?
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Old 07-19-2013, 11:16 PM   #7632
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Quote:
Originally Posted by skengines View Post
anyone having issues with the shock leaking oil from the top?
did you check the oring in the cap? might be bad or missing.
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Old 07-20-2013, 12:38 AM   #7633
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Quote:
Originally Posted by lewis4x4 View Post
I realize this question was not addressed to me but I agree that I don't like the direction, assuming this is going to become a standard, for big outdoor races to go to Sugar tracks. What I love about outdoor "Off-Road" racing is that it is just that: OFF-ROAD... I understand that at Pre-Worlds, the drivers had zero traction and it was bad but I blame that on A-Main for not watering the track properly leading up. Loose dirt is Off-Road and I hope we don't quickly turn this sport into On-Road with jumps.
All the 3 local tracks I race on is sugar or glued and loved it, we all run bald or slicks tires.... Coming from on-road the more traction the better..
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Old 07-20-2013, 12:41 AM   #7634
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Quote:
Originally Posted by vr6cj View Post
did you check the oring in the cap? might be bad or missing.
O-ring might be bad.. Or if you tighten the top cap too much the o-ring tends to pop out the groove from the top cap...
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Old 07-20-2013, 02:51 AM   #7635
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Check if the O-ring is seated properly. Use a little green slime.

Normally on the rb5 I can damage the front alum shock cap but on the rb6 they're behind the towers.
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