R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Electric Off-Road (https://www.rctech.net/forum/electric-off-road-4/)
-   -   Team Associated B4.2 Thread (https://www.rctech.net/forum/electric-off-road/694124-team-associated-b4-2-thread.html)

Wildcat1971 09-03-2013 01:00 PM

I use the stock rings. Dont think the sanded rings from Bfast are worth it. I dont think MIP preps the rings either.

shadowracer24 09-03-2013 01:42 PM

I put the Bfast kit in mine and gotta tell ya man, I have never had a smoother diff in my life. Have run a half a dozen races on it and it is still as smooth as glass. Have been very pleased with mine.

Autocratic 09-03-2013 02:08 PM

For anyone wondering about diff rings, I purchased this awhile back.

http://www.reflexracing.net/QTEQ-Dif...rs_p_1065.html

It's expensive at first, but if you like to rebuild a lot, or like to have spare diffs, a lot of cars, etc, I think it's worth it.

The BFast setup is nice for the initial purchase, but with this kit you essentially can do the same thing over and over. The paper will last a long time. I've done dozens of rings on the same sheet and the cross-hatch comes out looking the same every time.

racer1812 09-03-2013 02:14 PM


Originally Posted by Grasschopper (Post 12510734)
Well I wound up getting the JCon ball cups for free...do I try them?

Were all of the popping off issues related to using the hockey stick shaped cups on the inside rear? Or were people having issues with them popping off in other locations?

Ahh and an unrelated question: gear diff or ball diff for 17.5 racing on a med-high bite smooth clay track with wood jumps.

Here's the track (layout changes a few times a year):
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

layout..track..:weird: what do you guys even call that carpet..clay.....carclay.:confused: what kind of motor configuration do you use on that? 4 gear w/ RM?

I know you guys that run there are gonna think I'm being a complete ass but I don't get the point of a clay track that has all the jumps made of wood and carpet...I just don't get it, please explain the why??

Wildcat1971 09-03-2013 02:17 PM


Originally Posted by racer1812 (Post 12512028)
layout..track..:weird: what do you guys even call that carpet..clay.....carclay.:confused: what kind of motor configuration do you use on that? 4 gear w/ RM?

I know you guys that run there are gonna think I'm being a complete ass but I don't get the point of a clay track that has all the jumps made of wood and carpet...I just don't get it, please explain the why??

they make their money off dirt oval. The track is converted to offroad with the wooden jumps, but its oval first offroad secondary. I am confused by oval as well. But those crazy guys on the east coast.

racer1812 09-03-2013 02:18 PM


Originally Posted by Autocratic (Post 12512007)
For anyone wondering about diff rings, I purchased this awhile back.

http://www.reflexracing.net/QTEQ-Dif...rs_p_1065.html

It's expensive at first, but if you like to rebuild a lot, or like to have spare diffs, a lot of cars, etc, I think it's worth it.

The BFast setup is nice for the initial purchase, but with this kit you essentially can do the same thing over and over. The paper will last a long time. I've done dozens of rings on the same sheet and the cross-hatch comes out looking the same every time.

cool, and ya not exactly cheap for some but it might help stop the NSA from asking so many questions as to why I have NO finger prints..:lol:


Ya I know use an out drive to sand rings. It was a joke....unless you're the NSA:ha:

racer1812 09-03-2013 02:23 PM


Originally Posted by Wildcat1971 (Post 12512040)
they make their money off dirt oval. The track is converted to offroad with the wooden jumps, but its oval first offroad secondary. I am confused by oval as well. But those crazy guys on the east coast.

Won't find many dirt oval fans in this thread for sure but ok that explains it.

I raced dirt oval for years. And it really is huge fun! I grew up in the age of the original Dominator running Top Flight 9 turns on 7 cells.....I'm dating myself now, gotta go..:lol: I was too young and broke to run that class then, but man they were fast!! for the early 90's.

racer1812 09-03-2013 02:26 PM

And if they're cash cow is dirt oval they need to tap into it! Have you guys seen the price of a basic dirt oval car (any class) lately! You don't go dirt oval racing on the cheap these days!

Not on the level that would equal a mod 2wd or 4wd off road buggy anyway.

JiuHaWong 09-03-2013 02:29 PM

I really like the Bfast rings, but you can sand rings yourself, it just takes time to get them flat.

Get a diff ring holder from

racer1812 09-03-2013 02:36 PM

wait for it..wait for it.....someone is gonna come in and say there's NO reason to sand a stock $2 AE ring because they're laser flat to begin with..:tire:

JiuHaWong 09-03-2013 02:36 PM


Originally Posted by racer1812 (Post 12512106)
wait for it..wait for it.....someone is gonna come in and say there's NO reason to sand a stock $2 AE ring because they're laser flat to begin with..:tire:

:lol:

racer1812 09-03-2013 02:44 PM

I'm just saying I've burned my finger tips down to MI5 standards and still had moon craters with 400 grit...but that's me. I must have gotten a bad set.

Jmuck69 09-03-2013 02:51 PM


Originally Posted by racer1812 (Post 12512106)
wait for it..wait for it.....someone is gonna come in and say there's NO reason to sand a stock $2 AE ring because they're laser flat to begin with..:tire:

Maybe Tame Blueberry...

Grasschopper 09-03-2013 04:53 PM


Originally Posted by Autocratic (Post 12512007)
For anyone wondering about diff rings, I purchased this awhile back.

http://www.reflexracing.net/QTEQ-Dif...rs_p_1065.html

It's expensive at first, but if you like to rebuild a lot, or like to have spare diffs, a lot of cars, etc, I think it's worth it.

The BFast setup is nice for the initial purchase, but with this kit you essentially can do the same thing over and over. The paper will last a long time. I've done dozens of rings on the same sheet and the cross-hatch comes out looking the same every time.

Hmm...I'm really liking that. Might have to make my own. :D

Racer1812 - you got the answer already...yea oval racing is big there...I'm just happy to have a place to run that's 112mi from my house. :cry:

Man we need a track closer to home. If I ever win the lottery I have the building picked out and it's gonna be awesome.

biggles97 09-03-2013 05:16 PM


Originally Posted by Autocratic (Post 12512007)
For anyone wondering about diff rings, I purchased this awhile back.

http://www.reflexracing.net/QTEQ-Dif...rs_p_1065.html

I just use the female diff outdrive to hold the ring when sanding.

Yeah Racing has one too:

http://www.yeahracing.com/catalog/ba...bu-p-2590.html

What I like about that one is the the diff setting tool. No more struggling with holding two hex drivers in the outdrives with one hand while testing the diff with the other.


All times are GMT -7. It is currently 11:57 PM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.