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 Tree25Likes
Reply
 
Thread Tools Search this Thread
Old 10-23-2012, 04:58 PM   #2011
Tech Elite
 
aloksatoor's Avatar
 
Join Date: Dec 2010
Location: N California
Posts: 3,099
Trader Rating: 42 (100%+)
Default

We can put in some non sticky putty, or balancing clay in that gap and press in screw down the tranny. After that remove the tranny and see how much clay is left. Maybe epoxy in that much so the impact moves to the soft plastic of the tranny?

P.S. I don't have my buggy till saturday (or if fedex decides to be kind sooner) so I will try it once I get mine in hand should be brand new.
__________________
MP9 TKI3 | ZX6 | RB6 | MBX7r Eco

Last edited by aloksatoor; 10-23-2012 at 05:40 PM.
aloksatoor is offline   Reply With Quote
Old 10-23-2012, 05:04 PM   #2012
Tech Adept
 
Join Date: Jan 2012
Location: concord ca.
Posts: 230
Default

Ditto or as you guys say bump or +1 (im learn'n)
ems
hey RB6 all the way, after Kyosho resolves situation we'll have RB7
Eric Summers is offline   Reply With Quote
Old 10-23-2012, 06:27 PM   #2013
Tech Elite
 
eper's Avatar
 
Join Date: Jan 2010
Location: new milford, CT.
Posts: 2,607
Trader Rating: 14 (100%+)
Default

i wonder why they made the tail section of the chassis thinner then the rest? anyone have any ideas on this, and are the people who are denting the chassis setting ride height on the thinner part of the chassis. the way the setup sheet look it should be measured under the rear bulkhead, just wonder if that may be causing excessive chassis slap
__________________
new milford ct,
WOLCOTT HOBBIES.. TEAM SCREAM..PRO-LINE RACING,,RC Truck Stop, and FTM grip
I CALL IT HOW I SEE IT!!!!!
eper is offline   Reply With Quote
Old 10-23-2012, 06:39 PM   #2014
Tech Adept
 
Join Date: Jan 2012
Location: concord ca.
Posts: 230
Default

Lets go RB7 or mount a plate?
Eric Summers is offline   Reply With Quote
Old 10-23-2012, 06:51 PM   #2015
Tech Elite
 
rokitman's Avatar
 
Join Date: Jul 2007
Location: VA
Posts: 2,665
Trader Rating: 128 (100%+)
Default

Got mine today

Start the build tommorrow night... cant wait
rokitman is offline   Reply With Quote
Old 10-23-2012, 06:56 PM   #2016
Tech Regular
 
fastestwon's Avatar
 
Join Date: Oct 2006
Location: michigan USA
Posts: 258
Trader Rating: 15 (94%+)
Default

I talked with Kyosho usa yesterday . they said if i am not comfortable with the chassis to send it to them with a sales receipt and they would take care of it . as i checked my chassis it has a slight dent crease also . mine is not a performance issue yet.. but as capt said we wouldn't want to get stuck having to buy another chassis . hopefully Kyosho will come up with a solution for this issue . Kyosho also said for now pack clay in the porous area around the transmission case . i will surely send mine back before the 90 days is up because my chassis is already compromised and will eventually fail .
fastestwon is offline   Reply With Quote
Old 10-23-2012, 07:14 PM   #2017
Tech Adept
 
Join Date: Jan 2012
Location: concord ca.
Posts: 230
Default

Just CAll, it Will Be Resolved.
I still like my plate
ps It is not a delima
ps
some like to spake it harder than others
Eric Summers is offline   Reply With Quote
Old 10-23-2012, 07:16 PM   #2018
Tech Addict
 
steam's Avatar
 
Join Date: Sep 2010
Location: Buena Park
Posts: 560
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by eper View Post
i wonder why they made the tail section of the chassis thinner then the rest? anyone have any ideas on this, and are the people who are denting the chassis setting ride height on the thinner part of the chassis. the way the setup sheet look it should be measured under the rear bulkhead, just wonder if that may be causing excessive chassis slap
Yes my ride height was set correctly. I've ran the car 4 times since this happened and it hasn't gotten any worse. I went through it thoroughly before ever running it, I'm one of those 16 to 20 hours to build people, although I know it can be done in 3 or 4 hrs. I've raced r/c since 1992.

I haven't broken anything on the car, and I'm still running the stock steering rack and decided not to run the longer ball studs in the front outer hubs. I've had no issues the car drives fantastically, responds amazingly to set up changes as well.

I mean I can be upset about it, but I have faith in Kyosho making this right. I really don't see the point in complaining. It's really great all these people on here are helpful and are more looking to finding a solution.

I was told the next batch of cars should be here in the US in early November.

For all you racers who run this car at AE and Losi dominated tracks. Don't sweat the smack talk. Let em drive your car, that should shut em up.
__________________
Yokomo YZ-2, Kyosho Ultima SC-R, RT5, Airtronics M12
steam is offline   Reply With Quote
Old 10-23-2012, 07:18 PM   #2019
Tech Elite
 
Join Date: Jun 2010
Location: Southern California
Posts: 2,167
Trader Rating: 77 (100%+)
Default

Quote:
Originally Posted by steam View Post
Yes my ride height was set correctly. I've ran the car 4 times since this happened and it hasn't gotten any worse. I went through it thoroughly before ever running it, I'm one of those 16 to 20 hours to build people, although I know it can be done in 3 or 4 hrs. I've raced r/c since 1992.

I haven't broken anything on the car, and I'm still running the stock steering rack and decided not to run the longer ball studs in the front outer hubs. I've had no issues the car drives fantastically, responds amazingly to set up changes as well.

I mean I can be upset about it, but I have faith in Kyosho making this right. I really don't see the point in complaining. It's really great all these people on here are helpful and are more looking to finding a solution.

I was told the next batch of cars should be here in the US in early November.

For all you racers who run this car at AE and Losi dominated tracks. Don't sweat the smack talk. Let em drive your car, that should shut em up.
Agreed. I have converted 2 die hard AE B4 guys already with just a few laps of the 6.
goin2drt is offline   Reply With Quote
Old 10-23-2012, 07:22 PM   #2020
Tech Adept
 
Join Date: Jan 2012
Location: concord ca.
Posts: 230
Default

Any thing -Every thing is possible.
Iam not giving up.
in fact everything has a idiosyncrasy.
ems
Eric Summers is offline   Reply With Quote
Old 10-23-2012, 07:51 PM   #2021
Tech Addict
 
gelshocker's Avatar
 
Join Date: Sep 2011
Posts: 717
Trader Rating: 1 (100%+)
Default

IMHO the easiest would be for K to release a update trans tree where the plastic fits into the chassis. What's the purpose of the bottom angling upwards? They probably missed this part from rb5. The rb6 trans was updated to support the wing supports anyway; release a 'B' or 'C' version. And then issue a skid plate similar to the dex210 (410?).

I know in my case I will not be able to seek a replacement chassis. We build multiple tranmissions anyway, this would appear the most sensible solution. My 2 cents, Cheers
__________________
Kyosho RT5 | RB6
gelshocker is offline   Reply With Quote
Old 10-23-2012, 08:33 PM   #2022
Tech Elite
 
Rfury's Avatar
 
Join Date: Apr 2007
Location: NW Ga
Posts: 4,503
Trader Rating: 6 (100%+)
Send a message via AIM to Rfury Send a message via Yahoo to Rfury
Default

Quote:
Originally Posted by fastestwon View Post
Kyosho also said for now pack clay in the porous area around the transmission case .
It is nice to have my theories all but confirmed.

This would solve the denting issue as there would be no way for it to bend without breaking the transmission case. Filling the gaps between the chassis and the case with something that won't flex is the only way to prevent the issue.
__________________
Kyosho RB6
Kyosho ZX6
Kyosho MP9e TKI
Rfury is offline   Reply With Quote
Old 10-23-2012, 09:02 PM   #2023
Tech Addict
 
gelshocker's Avatar
 
Join Date: Sep 2011
Posts: 717
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Rfury View Post
It is nice to have my theories all but confirmed.

This would solve the denting issue as there would be no way for it to bend without breaking the transmission case. Filling the gaps between the chassis and the case with something that won't flex is the only way to prevent the issue.
Having a trans box that does fit plus a skid plate, the chassis would be sandwiched from both sides preventing flex in both directions.
__________________
Kyosho RT5 | RB6
gelshocker is offline   Reply With Quote
Old 10-23-2012, 09:28 PM   #2024
Tech Adept
 
powerslave's Avatar
 
Join Date: Jun 2008
Location: Newbury Park,CA
Posts: 181
Trader Rating: 12 (100%+)
Default

I just stripped my chassis down to ship to Kyosho. Took some measurements with my calipers,the rear chassis thickness is 2.5mm the milled out trans section seems to be 2.1mm deep,that little square doesn't stand a chance.

I wish they would have made a cut out in the chassis for the transmission!
powerslave is offline   Reply With Quote
Old 10-23-2012, 09:30 PM   #2025
Tech Elite
 
Rfury's Avatar
 
Join Date: Apr 2007
Location: NW Ga
Posts: 4,503
Trader Rating: 6 (100%+)
Send a message via AIM to Rfury Send a message via Yahoo to Rfury
Default

Unless the screws strip out of the trans case or the case breaks, I would not see the chassis bending as it has for some people with a case that fits properly.
__________________
Kyosho RB6
Kyosho ZX6
Kyosho MP9e TKI
Rfury 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 22984 Today 10:14 AM
Island Raceway & Hobby (IRH), Lindenhurst, NY - Indoor Off-Road Track in Long Island Asharus Northeast Racing Forum 15026 11-02-2017 04:19 PM
Kyosho Ultima RB5 Thread Drift_Buggy Electric Off-Road 14641 11-10-2015 09:28 AM
Kyosho Ultima SC aeRayls Electric Off-Road 2599 04-27-2014 05:30 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 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 10:42 AM.


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