R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

    Hide Wikipost
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

Print Wikipost

Like Tree14Likes
Reply
 
Thread Tools Search this Thread
Old 12-30-2013, 03:15 AM   #9181
Tech Master
 
KalEl63's Avatar
 
Join Date: Jun 2011
Location: 3rd Rock
Posts: 1,950
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by K_King View Post
Ok fellers here's what I have been running since the chassis addition. I ran it this last Saturday and was able to run my personal bests in Round 1, then beating that by 4 seconds in Round 2. In the main I ran my fastest lap and had a lap on everyone, with some good competition. The new chassis makes the car easier to drive for sure in my opinion. I run on an indoor track that isn't really clay, its mainly hard packed dirt. Needless to say it can get dusty and loose at times so traction is up and down.

I put the new chassis on, went back to a setup I had run before, and did some battery adjustments that the new chassis allows you to do. My car weighs 1545g, and on the old chassis it was around 1580g. Pretty nice difference and it flexes more!

https://dl.dropboxusercontent.com/u/...Dec%202013.pdf
I am guessing the 3.5 rear toe helps?
I run 3.5 in my rear mount out our track where it can dust up and it is far better than 3.0 without taking any steering away.

What’s the difference between UM128 and 97050M ball stud on the rear block?
Now I finally have my MM RB6 back together again after the $150 worth of parts crash I can do a back to back of my RM and MM at our club track and see what I like.

I have been paying close attention to the MM talk for medium bite tracks
__________________
Team Associated RC10 B6D
Team Associated RC10 B64D
Team Associated RC10 T5M

1.21 GIGAWATTS!!!
KalEl63 is offline   Reply With Quote
Old 12-30-2013, 09:00 AM   #9182
E73
Tech Apprentice
 
E73's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2013
Location: Issaquah, WA
Posts: 88
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by K_King View Post
Ok fellers here's what I have been running since the chassis addition. I ran it this last Saturday and was able to run my personal bests in Round 1, then beating that by 4 seconds in Round 2. In the main I ran my fastest lap and had a lap on everyone, with some good competition. The new chassis makes the car easier to drive for sure in my opinion. I run on an indoor track that isn't really clay, its mainly hard packed dirt. Needless to say it can get dusty and loose at times so traction is up and down.

I put the new chassis on, went back to a setup I had run before, and did some battery adjustments that the new chassis allows you to do. My car weighs 1545g, and on the old chassis it was around 1580g. Pretty nice difference and it flexes more!

https://dl.dropboxusercontent.com/u/...Dec%202013.pdf

Thanks for the update on the new gear. Curious why, if the chassis flexes more, you have all three side-pod screws secured. Doesn't that effectively cancel the new found flex you've gained? Still trying to decide if the new chassis is in my future.
E73 is offline   Reply With Quote
Old 12-30-2013, 09:18 AM   #9183
Tech Elite
 
K_King's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 4,184
Trader Rating: 38 (100%+)
Send a message via AIM to K_King
Default

You can have too much flex. Most of the milling is in the rear end so, in my opinion, making the torsional flex less will make the area that has more flex, work more. That may or not be correct on how it works but that's how I'm treating it until someone tells me I'm wrong, which I'm ok with!

I have a buddy with a Tamiya who says their chassis have so much torsional flex it creates a snap effect to the car. It would essentially flex to a point and snap back really fast. He made CF braces and it fixed it. I'm not really lacking side bite either.

If anything I can take them out to get even more grip out of it but right now it's pretty good.
__________________
TLR - Spektrum - Pro-Line - Team Orion - Stickit1 - Schelle
K_King is offline   Reply With Quote
Old 12-30-2013, 09:27 AM   #9184
Tech Elite
 
ryanpatrickgore's Avatar
 
Join Date: May 2011
Location: TRCR
Posts: 2,022
Trader Rating: 14 (94%+)
Default fresh car

here is my new ride. the quickie paint job turned out ok. i dremmeled the side pod just a bit for the reciever. i have an r10pro in my wheeler but just like the feel of the flow better so i kept it in my 2w (blasphemy i know)
Attached Thumbnails
Kyosho Ultima RB6 & RB6.6 Car Thread-image_2.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-image.jpg   Kyosho Ultima RB6 & RB6.6 Car Thread-image_1.jpg  
ryanpatrickgore is offline   Reply With Quote
Old 12-30-2013, 10:27 AM   #9185
Tech Adept
 
Join Date: Sep 2011
Posts: 188
Default

Very nice ^^^

Do you guys use weights on front for mid motor ?

I'm going to switch out my wire layout and put my battery as far as I can on my MM. . I have a low pro servo on it and a standard one that weighs just a bit more and I was thinking if it's good to add a bit weight on front when using a low profile servo..
iMarky is offline   Reply With Quote
Old 12-30-2013, 05:58 PM   #9186
Tech Apprentice
 
Join Date: Feb 2013
Location: Sydney, Australia
Posts: 52
Trader Rating: 1 (100%+)
Default

Hi all, I have had my rb6 for about 1 month and have driven it twice, in the two times I took it to practice, I have bent the front suspension plate, has anyone got the same problem?, can it be fixed or do I just buy a new one every time I cartwheel my car after a jump?
skhadka17 is offline   Reply With Quote
Old 12-30-2013, 06:37 PM   #9187
Tech Master
 
nickdawg18's Avatar
 
Join Date: Jul 2010
Location: Granite City, IL
Posts: 1,696
Trader Rating: 33 (100%+)
Default

Quote:
Originally Posted by skhadka17 View Post
Hi all, I have had my rb6 for about 1 month and have driven it twice, in the two times I took it to practice, I have bent the front suspension plate, has anyone got the same problem?, can it be fixed or do I just buy a new one every time I cartwheel my car after a jump?
Kyosho makes a beefier front plate

http://www.amainhobbies.com/product_...n-Plate-Type-B

And btw, don't cartwheel lol
__________________
Nick Carroll
Mugen Mbx7-reds r5t team edition 2 [] Mugen Mbx7 Eco-Tekin rx8 gen 2 1900kv [] Losi 8ight T 2.0-fusion x7 [] Losi 8ight T E 2.0-Tekin 2000kv [] Kyosho RB6-Tekin RS gen 2 8.5t [] Losi 22sct
VP Pro USA [] Up-Grade RC
nickdawg18 is offline   Reply With Quote
Old 12-30-2013, 08:48 PM   #9188
Tech Apprentice
 
Join Date: Feb 2013
Location: Sydney, Australia
Posts: 52
Trader Rating: 1 (100%+)
Default

Yeah, that's the front plate which I've been buying, I think it also comes stock cause that was the same part number in the manual, I tried bending them back but it's very difficult, has anyone tried reinforcing them or has an idea as to how to?
skhadka17 is offline   Reply With Quote
Old 12-30-2013, 09:54 PM   #9189
Tech Elite
 
ryanpatrickgore's Avatar
 
Join Date: May 2011
Location: TRCR
Posts: 2,022
Trader Rating: 14 (94%+)
Default

Well, I drove the car and it was awesome, as always. Chassis flex screws out was better. More traction for sure. Went to the 27* caster setting thanks to a tip from Matesa. Faster steering in the infield was good.
ryanpatrickgore is offline   Reply With Quote
Old 12-30-2013, 10:02 PM   #9190
Tech Elite
 
B00t13g's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2012
Location: Houston, TX
Posts: 2,041
Trader Rating: 9 (100%+)
Default

I was able to get a new phantom body painted up. I really like this body as it fits perfectly and has a very unique look with or without the fin.
__________________
Mackenzie Meyercord
Rc America, Xray, MOTIV, Avid, Team EAM, Apex Rc Pro Shop, Pro Spec USA, Sanwa, RSD
B00t13g is offline   Reply With Quote
Old 12-30-2013, 10:03 PM   #9191
Tech Elite
 
B00t13g's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2012
Location: Houston, TX
Posts: 2,041
Trader Rating: 9 (100%+)
Default

Double
__________________
Mackenzie Meyercord
Rc America, Xray, MOTIV, Avid, Team EAM, Apex Rc Pro Shop, Pro Spec USA, Sanwa, RSD
B00t13g is offline   Reply With Quote
Old 12-31-2013, 01:48 AM   #9192
Tech Regular
 
Join Date: Oct 2010
Posts: 324
Default

Quote:
Originally Posted by skhadka17 View Post
Yeah, that's the front plate which I've been buying, I think it also comes stock cause that was the same part number in the manual, I tried bending them back but it's very difficult, has anyone tried reinforcing them or has an idea as to how to?
You may have a broken front suspension mount block (UM721) or inner hinge pin(UMW101) which could be causing the brace to bend due to the additional flex allowed.

If you really want to avoid bending that piece, slap an aluminum suspension block on it. GHEA makes one. But keep in mind that thing is bending for a reason, and it's preventing things like your arm or bulkhead from snapping.
__________________
Jason Dias
http://www.facebook.com/jasondiasrc
Team Kyosho - AKA - KO PROPO - Hobbywing - Schuur Speed - Schelle Racing - OCRC Raceway - Tuning Haus
Jason.Dias is offline   Reply With Quote
Old 12-31-2013, 02:10 AM   #9193
Tech Adept
 
Join Date: May 2007
Posts: 187
Default

Quote:
Originally Posted by B00t13g View Post
I was able to get a new phantom body painted up. I really like this body as it fits perfectly and has a very unique look with or without the fin.
Did you take it out for a spin??
nitroargi is offline   Reply With Quote
Old 12-31-2013, 04:15 AM   #9194
Tech Master
 
nickdawg18's Avatar
 
Join Date: Jul 2010
Location: Granite City, IL
Posts: 1,696
Trader Rating: 33 (100%+)
Default

Quote:
Originally Posted by Jason.Dias View Post
You may have a broken front suspension mount block (UM721) or inner hinge pin(UMW101) which could be causing the brace to bend due to the additional flex allowed.

If you really want to avoid bending that piece, slap an aluminum suspension block on it. GHEA makes one. But keep in mind that thing is bending for a reason, and it's preventing things like your arm or bulkhead from snapping.
Ouch, $45 for a little piece of aluminum.
__________________
Nick Carroll
Mugen Mbx7-reds r5t team edition 2 [] Mugen Mbx7 Eco-Tekin rx8 gen 2 1900kv [] Losi 8ight T 2.0-fusion x7 [] Losi 8ight T E 2.0-Tekin 2000kv [] Kyosho RB6-Tekin RS gen 2 8.5t [] Losi 22sct
VP Pro USA [] Up-Grade RC
nickdawg18 is offline   Reply With Quote
Old 12-31-2013, 07:03 AM   #9195
Tech Champion
 
MikeXray's Avatar
 
Join Date: Oct 2006
Location: New York
Posts: 5,749
Trader Rating: 73 (100%+)
Default

Quote:
Originally Posted by nickdawg18 View Post
Ouch, $45 for a little piece of aluminum.
Yaiba makes one as well
http://www.yaiba-racing.com/products/YRG084_eng.html
__________________
Mike L. Awesomatixusa.com | TQWire.com | Islandraceway.com |JacksonRCracing.com | Horsham RC | Sweepracingusa.com
MikeXray is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ryde it like you stole it: the Ryde Drivers thread. old_skoolie Australian Racing 22956 Today 04:13 AM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15015 08-29-2017 12:36 PM
Kyosho Ultima RB5 Thread Drift_Buggy Electric Off-Road 14641 11-10-2015 08:28 AM
Kyosho Ultima SC aeRayls Electric Off-Road 2599 04-27-2014 04:30 PM



Currently Active Users Viewing This Thread: 3 (0 members and 3 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 07:18 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net