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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 12-08-2012, 09:36 PM   #3241
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Default Avid Triad top shaft and slipper clutch

just got back from practice first time running the avid system . defiantly smoother then the stock system can really come on the throttle a lot harder . on the speed control adjustment for punch before i was only able to run at 4 and now i can run at 9 with the speed passion revention pro . i turned the fastest laps from any class . my fastest lap was 15.6 my ave laps were 16.3 . most racers were turning anywhere from 16.8 as their fastest and their ave laps were around 18.0 and higher . i would say the avid system is a must have.
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Old 12-08-2012, 10:15 PM   #3242
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Originally Posted by Cpt.America View Post
lets see some pictures of the car... sounds like something is a miss. Did you buy truck springs instead of Buggy springs? Lets measure the length of the unloaded spring.

EDIT. Springs are 73mm
Unfortunately the wife took our camera out of state so I have no way to take a picture. My gold springs are 73mm long, but seem to be very stiff. Without changing anything else but the gold springs to the kit red springs the car almost bottomed out. After adjusting the shock collars appropriately I got the ride height where I want it.
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Old 12-08-2012, 10:20 PM   #3243
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Originally Posted by fastestwon View Post
just got back from practice first time running the avid system . defiantly smoother then the stock system can really come on the throttle a lot harder . on the speed control adjustment for punch before i was only able to run at 4 and now i can run at 9 with the speed passion revention pro . i turned the fastest laps from any class . my fastest lap was 15.6 my ave laps were 16.3 . most racers were turning anywhere from 16.8 as their fastest and their ave laps were around 18.0 and higher . i would say the avid system is a must have.
If you can turn the punch up and hit the throttle harder, doesn't this just mean it slips more?


Quote:
Originally Posted by Ctimrun View Post
Unfortunately the wife took our camera out of state so I have no way to take a picture. My gold springs are 73mm long, but seem to be very stiff. Without changing anything else but the gold springs to the kit red springs the car almost bottomed out. After adjusting the shock collars appropriately I got the ride height where I want it.
Sounds to me like you've either got a bad set or the wrong spring altogether. Do you still have the kyosho bag that says the part no?
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Old 12-08-2012, 10:29 PM   #3244
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If you can turn the punch up and hit the throttle harder, doesn't this just mean it slips more?
no.... it just don't break loose with very little slip. were as the stock system is very inconsistent with adjustment .
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Old 12-08-2012, 10:45 PM   #3245
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Sounds to me like you've either got a bad set or the wrong spring altogether. Do you still have the kyosho bag that says the part no?
As you were typing this I was out in the side yard digging through our trash can with a flashlight to find the tag for the springs. Part number is XGS034. Looking for part numbers....

EDIT: If I am looking at this right XGS034 are truck springs and the buggy springs are XGS013. Looks like CA was on the right track, even though these are also 73mm long just like the buggy springs. I think they just have a different wind.

Last edited by Ctimrun; 12-08-2012 at 11:21 PM.
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Old 12-09-2012, 07:40 AM   #3246
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Im just getting in to running 1/10th scale. What servos are you guys running in your rb6 ? All my servos are for my 1/8 scale cars im sure they will be over powered.
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Old 12-09-2012, 07:47 AM   #3247
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Spektrum 6040 in mine.
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Old 12-09-2012, 08:39 AM   #3248
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Originally Posted by fastestwon View Post
just got back from practice first time running the avid system . defiantly smoother then the stock system can really come on the throttle a lot harder . on the speed control adjustment for punch before i was only able to run at 4 and now i can run at 9 with the speed passion revention pro . i turned the fastest laps from any class . my fastest lap was 15.6 my ave laps were 16.3 . most racers were turning anywhere from 16.8 as their fastest and their ave laps were around 18.0 and higher . i would say the avid system is a must have.
Are you running that in Mod or 17.5?
I run 17.5 and am wondering if it will help or am I just adding more rotating mass. I run on a med/high traction indoor clay track.
I guess my question is; is this helpful for 17.5? Or just mod?
Your thoughts please?
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Old 12-09-2012, 09:50 AM   #3249
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Originally Posted by CanyonCarverR1 View Post
Are you running that in Mod or 17.5?
I run 17.5 and am wondering if it will help or am I just adding more rotating mass. I run on a med/high traction indoor clay track.
I guess my question is; is this helpful for 17.5? Or just mod?
Your thoughts please?
IMO its a waste of money for 17.5. I ran stock at spectrum with a slipper iliminator and 64 pitch gears with no problems. But if ur having problems with wheel spin and putting the power down then it's a good option. I run the ae setup in my mod car and I think it does help.
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Old 12-09-2012, 10:36 AM   #3250
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Quote:
Originally Posted by CanyonCarverR1 View Post
Are you running that in Mod or 17.5?
I run 17.5 and am wondering if it will help or am I just adding more rotating mass. I run on a med/high traction indoor clay track.
I guess my question is; is this helpful for 17.5? Or just mod?
Your thoughts please?
i practiced with 17.5 blinky 13.5 blinky and 10.5 worked great with all three . the only difference between the three is 17.5 slips less then 13.5 and 13.5 less then 10.5 . the adjustment really didn't change but the fastest was the 13.5 on the given layout . the avid system was warm not hot and it is nice and quite running... true gears very nice gear mesh. that was running till the battery lipo cut off.
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Old 12-09-2012, 10:39 AM   #3251
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Originally Posted by jwood7 View Post
IMO its a waste of money for 17.5. I ran stock at spectrum with a slipper iliminator and 64 pitch gears with no problems. But if ur having problems with wheel spin and putting the power down then it's a good option. I run the ae setup in my mod car and I think it does help.
What's the biggest advantage to running 64p gearing?
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Old 12-09-2012, 12:24 PM   #3252
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I went up to a new track and after running this car two days of prac...... Why did I wait so long I feel very connected to the car very quick. I had a few issues at first where it felt slow of the bottem Tekin Rs and gen2 17.5 "blinky" I went in my Hotwire messed with when the throttle comes on a little bit sooner this car is a rocket I had ppl asking what I did to the car cause from my first two runs then switched the setting and the car was night and day different I had ppl accusing me of running boost . The tracks average fast laps are 15'6 I broke into a 14'4 overall very happy with this car!
Will Kyosho realese a 2wd SCT version of this car?
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Old 12-09-2012, 12:42 PM   #3253
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Hey guys I've been tweaking on my car here at SDRC. Still going to work on a few things on the front end, but so far this feels pretty good.

https://dl.dropbox.com/u/18166464/Ke...DRC%20Base.pdf
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Old 12-09-2012, 12:42 PM   #3254
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Default scr sp

i have sold mine . awaiting on the new one to be released
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Old 12-09-2012, 02:11 PM   #3255
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Originally Posted by K_King View Post
Hey guys I've been tweaking on my car here at SDRC. Still going to work on a few things on the front end, but so far this feels pretty good.

https://dl.dropbox.com/u/18166464/Ke...DRC%20Base.pdf
Do u really have the 2mm spaced behind the arms on the toe block hinge pins? I was thinking about going back 1mm to see how it would respond.
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