R/C Tech Forums

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

Like Tree1Likes
Reply
 
Thread Tools Search this Thread
Old 07-18-2011, 07:15 AM   #3256
Tech Elite
 
artwork's Avatar
 
Join Date: Sep 2004
Location: Thornton, CO
Posts: 3,086
Trader Rating: 59 (100%+)
Default

Well I figured I would post the process that I followed to fit the Yokomo gear diff in the TC6. I know that there are lots of opinions on how to do this, but this is the process that I followed and think it works pretty well. I am not advocating that anyone else try this, and if you do you take full responsibility for the outcome. I would say that this project is medium difficulty and will take about an hour or two to complete.

If you do attempt to do this please wear a mask and eye protection, especially on step 2.

Step 1) Remove the diff out drives from the gear diff housing. Please follow the provided instructions on this. The reason I do this is that the diff out drives get hot when grinding on them so it it best to not have it in contact with the plastic diff housing. Make sure you do both drive cups.

Step 2) In order to fit the longer AE CVAs it is required that you deepen the out drive cup. I did this by grinding a deeper groove in the bottom of the drive cup using a reinforced cut off wheel on my dremel. You don't have to go very deep but you want to remove about .25 mm of material and also square off the bottom of the out drive grooves. The idea here is that we need to get the CVA ball end and blade deeper into the out drive.


Step 3) It is time to trim the diff housing so that it will fit into the bulked. The idea here is to trim the lip that stops the belt tensioner so that the belt tensioner assembly can move closer to the center of the diff. I removed about .35mm of material. It is important that this be as straight as possible so that it will fit in the bulked straight. I once again used a cut off wheel in my dremel to accomplish this.


Step 4) You can now assemble the diff with your required oil and test fit the diff in the bulked. Based on how much you took off you may or may not need the shims that are required for the stock diff. I am not currently using any in my cars. For mod I am running 1000cst and for stock I am running 700cst!

Step 5) It is now time to grind down the CVA ball end so that it can fit without bind in the drive cup. I ground down the sides of the ball and was careful to stay clear of the pins. It is important to grind off enough material from both sides of the ball, and after you do this it will not look like much of a ball anymore. It is important to test fit as you go and ensure that you take off only enough material to make them fit without bind. Be patient here and be careful.


Step 6) The last step to remove some material from the CVA blade. It is important to narrow the section that fits the furthest into the drive cup and also remove some material (and flatten) the bottom of the blade. The idea here is to remove enough material so that the blade fits in the drive cup without any bind.

Once you have completed all of this test fit everything and make sure that the CVAs do not bind in anyway during rotation and arm movement both up and down.

Like I said there are lots of ways to do this and if I had it my way I would have used an end mill to do all of the metal work. But lets get real not very many of us have access to stuff like that. I was able to make three gear diffs fit with just the use of some patience and my dremel. Not the prettiest looking thing, but it works!

Good luck and I hope this helps anyone considering doing this until the actual AE gear diff comes out, which I hope is soon!
__________________
Sanwa | R1 Wurks | Avid | 2mm Designs
artwork is offline   Reply With Quote
Old 07-18-2011, 07:25 AM   #3257
Tech Addict
 
Join Date: Oct 2010
Location: East Coast
Posts: 725
Trader Rating: 25 (100%+)
Default

Let you know guys that I saw 3 LRP rotors for $25. at ebay 150634038510.
RustyRC is offline   Reply With Quote
Old 07-18-2011, 08:52 AM   #3258
Tech Fanatic
 
Join Date: Apr 2011
Location: France
Posts: 812
Default

Well, I have just fitted the Sakura diff gear in my TC6, no dremel here only a couple of parts changed.

You need a set of outdrive from a RRR V1 kyosho ref No: VZ219 (can be found cheap now)
I changed the internal gears for NT1 metal ones, the originals were plastic, but I guess they will do too.
The bearings are the same size, there is plenty shims to adjust your diff.
And you need a 40t diff which comes extra. (37 and 38 gears are standard in diff, 39 and 40 are separate spares)
It could be interesting to try a 39t on front...

On the minus point, you cannot use blades anymore, except if you remove some of the outdrive, which I did not want to.
So instead, I fitted some heatshrink on the ball and pin ends, it fits nicely with smooth action.

I am at the track tomorow to test all this if weather permits.
__________________
Electriquement votre...

Drink EARTH water and save lives! in support of WFP
olly986 is offline   Reply With Quote
Old 07-18-2011, 10:59 AM   #3259
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,769
Trader Rating: 11 (100%+)
Default

Guys, how much would you guys like us to make a lightweight spool and DC Universal Joints that bolt on straight on the car?

Would you be interested in either (or both)?

I am in the process of getting some prototypes made to evaluate them, but if the interest is high, we can pull the trigger on getting them made.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 07-18-2011, 11:08 AM   #3260
Tech Master
 
Verndog's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jun 2007
Location: PPDBillet.com USA
Posts: 1,845
Trader Rating: 16 (100%+)
Default

Quote:
Originally Posted by CristianTabush View Post
Guys, how much would you guys like us to make a lightweight spool and DC Universal Joints that bolt on straight on the car?

Would you be interested in either (or both)?

I am in the process of getting some prototypes made to evaluate them, but if the interest is high, we can pull the trigger on getting them made.
Cristian, IMO the lightweight spool could be a gamble as the AE one works pretty well, and with the upcoming release of the AE gear diff I would use caution in building...BUT that said, IMO the DC universals are a great idea. I'm running the Hot bodies on my TC6 and think they are nice improvement, but finding spares for the last month is pretty much impossible.
__________________
--->Dial-a-Grip for TC6
Kevin -- PPDBillet---TC6---Exoray 008
---Team Hoarders---
Verndog is offline   Reply With Quote
Old 07-18-2011, 11:08 AM   #3261
Tech Elite
 
artwork's Avatar
 
Join Date: Sep 2004
Location: Thornton, CO
Posts: 3,086
Trader Rating: 59 (100%+)
Default

Quote:
Originally Posted by CristianTabush View Post
Guys, how much would you guys like us to make a lightweight spool and DC Universal Joints that bolt on straight on the car?

Would you be interested in either (or both
I am in the process of getting some prototypes made to evaluate them, but if the interest is high, we can pull the trigger on getting them made.
universal joints interest me, but I think AE has a new spool in development.
__________________
Sanwa | R1 Wurks | Avid | 2mm Designs
artwork is offline   Reply With Quote
Old 07-18-2011, 11:09 AM   #3262
Tech Fanatic
 
Join Date: Apr 2011
Location: France
Posts: 812
Default

I would say the same for the spool.
__________________
Electriquement votre...

Drink EARTH water and save lives! in support of WFP
olly986 is offline   Reply With Quote
Old 07-18-2011, 11:39 AM   #3263
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,769
Trader Rating: 11 (100%+)
Default

Ok, I will take all your advice in consideration.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 07-18-2011, 11:40 AM   #3264
Tech Master
 
Big Features's Avatar
 
Join Date: Oct 2007
Location: Currituck, North Carolina
Posts: 1,879
Trader Rating: 4 (100%+)
Default

I wouldn't be surprised is AE isn't working on new CVDs as well.

Mike
__________________
Mike Kling
Team Associated REEDY Powered
JConcepts TXD Skin Graphix
Big Features is offline   Reply With Quote
Old 07-18-2011, 03:02 PM   #3265
Tech Regular
 
P.I.M.P's Avatar
 
Join Date: Jul 2009
Posts: 464
Trader Rating: 14 (100%+)
Default

Quote:
Originally Posted by olly986 View Post
Hi did you file your top deck?
What parts did you use to make the change?
and by doing this are you not by-passing the servo saver and losing the different positions for ackerman in the process?
hi yes you are by- passing the servo saver but the car will have a servo mount saver and the ackerman is still fully operational by loosening the ball stud as you would if there was just the screw there.cheers
__________________
Vbc wildfire D06
clinton livingstone
P.I.M.P is offline   Reply With Quote
Old 07-18-2011, 03:12 PM   #3266
Tech Fanatic
 
Join Date: Apr 2011
Location: France
Posts: 812
Default

Quote:
Originally Posted by P.I.M.P View Post
hi yes you are by- passing the servo saver but the car will have a servo mount saver and the ackerman is still fully operational by loosening the ball stud as you would if there was just the screw there.cheers
What do you mean by "the car will have a servo mount saver?"

and by the way, your servo horn doesn't look in the middle of its travel on your picture, you should rectify this
__________________
Electriquement votre...

Drink EARTH water and save lives! in support of WFP
olly986 is offline   Reply With Quote
Old 07-18-2011, 03:23 PM   #3267
Tech Champion
 
FastPete's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2009
Posts: 5,202
Trader Rating: 44 (100%+)
Default

I drove the car once with the ball diff and felt really good. Whats the advantage to the gear diff in the rear? Less maintance?

And I will wait for the AE one. Whens the supposed release date?

Thank You.
__________________
Authorized Dealer for /Agama / Tekno / Team Associated / Schelle / Hobbywing / PT Racing Shock & Diff oil / Serpent / Tekin / JConcepts / AKA / Proline / Savox / M2C / Picco / www.fiercercsolutions.com Like us on facebook www.facebook.com/FierceRCSolutions
FastPete is offline   Reply With Quote
Old 07-18-2011, 04:24 PM   #3268
Tech Master
 
Buckaroo's Avatar
 
Join Date: Oct 2010
Location: Norfolk, VA
Posts: 1,503
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by olly986 View Post
What do you mean by "the car will have a servo mount saver?"

and by the way, your servo horn doesn't look in the middle of its travel on your picture, you should rectify this
Kimbrough medium servo saver. Problem solved. The very same mod has been very well and completely researched/tested in the Photon.
__________________
Tom Keith

Tekin & Sweep, thanks for all that you do for you know who!

Associated/T.O.P./Mugen/Fantom/Spektrum/Savox
Buckaroo is offline   Reply With Quote
Old 07-18-2011, 06:25 PM   #3269
Tech Champion
 
geeunit1014's Avatar
 
Join Date: Sep 2005
Location: The dirty burnie
Posts: 5,465
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by FastPete View Post
I drove the car once with the ball diff and felt really good. Whats the advantage to the gear diff in the rear? Less maintance?

And I will wait for the AE one. Whens the supposed release date?

Thank You.
Gear diff in the rear gives you more foward bite, and less maintenance
__________________
Mike Gee

Awesomatix USA/Pyscho Cells Racing/LRP/Sweep Racing/RSD/Middle River Hobbies/Johns Mobile Raceway/TQ Wire/Avid
geeunit1014 is offline   Reply With Quote
Old 07-18-2011, 08:48 PM   #3270
Tech Master
 
pcar951's Avatar
 
Join Date: Dec 2005
Location: Cow Town
Posts: 1,691
Trader Rating: 19 (100%+)
Default

Quote:
Originally Posted by FastPete View Post
I drove the car once with the ball diff and felt really good. Whats the advantage to the gear diff in the rear? Less maintance?

And I will wait for the AE one. Whens the supposed release date?

Thank You.
I prefer the feel of a ball diff in the corners but the gear diff wins with no slip and nearly zero maintenence. I hate the fact that ALL gear diffs leak some!JMO
pcar951 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
THE TRACK RACEWAY Apex Mid Atlantic RC Racing 28961 07-11-2017 01:29 PM
Team Associated TC5 RCknight Electric On-Road 13254 05-12-2017 07:58 AM
Team Associated TC6 KostaG Electric On-Road 8 07-04-2010 11:42 AM



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 05:55 PM.


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