Go Back  R/C Tech Forums > General Forums > Electric On-Road
One way in the back. >

One way in the back.

One way in the back.

Old 03-07-2011, 04:45 AM
  #1  
Tech Addict
Thread Starter
 
Join Date: Jul 2009
Posts: 542
Default One way in the back.

I have this strange problem on my TL-01 it refuses completely to be stable under braking. Im running a EZrun 9T.

I have tried spool in the front and i have given it more toe in at the back.
nothing helps..

So i tought.. Would a one way in the back help?

Im sure it will under braking, but it will perhaps behave differently on power as well?
MatsNorway is offline  
Old 03-07-2011, 05:08 AM
  #2  
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

A one way in the back is unheard of.

Even Drifters only have anything other than a normal gear or ball diff in the back, they sometimes use a spool.


the ezrun 9t is a lot of motor for a one way, I would be running diff/spool or diff/diff for that kind of motor.

One ways are not good for faster motors, I would only use them with stock motors imo.
tc3team is offline  
Old 03-07-2011, 05:12 AM
  #3  
Tech Elite
iTrader: (3)
 
Join Date: Jun 2003
Posts: 4,304
Trader Rating: 3 (100%+)
Default

I've tried balldiff front + one-way rear. Car had a weird behaviour that I could not put my finger on. Braking was also bad.

MatsNorway, my TL01 is front spool plus rear gear diff set very loose. Braking is straight and strong.

Maybe lack of grip (track or tires)?
rccartips is offline  
Old 03-07-2011, 08:08 AM
  #4  
Tech Addict
Thread Starter
 
Join Date: Jul 2009
Posts: 542
Default

Originally Posted by rccartips View Post
I've tried balldiff front + one-way rear. Car had a weird behaviour that I could not put my finger on. Braking was also bad.
But was it stable under braking? spool+ oneway at the back is what im thinking.

I think it will be a problem with wheelspin. because it would become a spool then right?
MatsNorway is offline  
Old 03-07-2011, 09:29 AM
  #5  
Tech Elite
 
Foxxrocket's Avatar
 
Join Date: Jul 2008
Location: Sonoma County
Posts: 2,018
Default

If you want to destroy your car, go for it.
Foxxrocket is offline  
Old 03-07-2011, 09:32 AM
  #6  
Tech Champion
iTrader: (73)
 
MikeXray's Avatar
 
Join Date: Oct 2006
Location: New York
Posts: 5,755
Trader Rating: 73 (100%+)
Default

Originally Posted by MatsNorway View Post
But was it stable under braking? spool+ oneway at the back is what im thinking.

I think it will be a problem with wheelspin. because it would become a spool then right?
try putting some limiters in the rear shocks to limit how much they can unload.
MikeXray is offline  
Old 03-07-2011, 10:53 AM
  #7  
Tech Addict
Thread Starter
 
Join Date: Jul 2009
Posts: 542
Default

Lovely arguments people...

It ain`t a little unstable. Its more like: i wanna go this way if you as much as even thinks of going of throttle.
MatsNorway is offline  
Old 03-07-2011, 11:03 AM
  #8  
Tech Adept
 
Join Date: Sep 2009
Location: Barbados
Posts: 214
Default

Is the car balanced evenly left to right with even left to right droop settings?
spongerX is offline  
Old 03-07-2011, 11:12 AM
  #9  
Tech Addict
Thread Starter
 
Join Date: Jul 2009
Posts: 542
Default

Left/right weight balance is pretty good.
MatsNorway is offline  
Old 03-07-2011, 11:23 AM
  #10  
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

A TL-01 was never designed to have that kind of power. I'd say there are a myriad of things that would be needed to get close to good handling. Sorry if i'm sounding rude.
What kind of shocks do you have?
What is your current set-up?
What tires do you use?
What is the surface like that you run on?
JR007 is offline  
Old 03-07-2011, 02:14 PM
  #11  
Tech Addict
 
academygaz's Avatar
 
Join Date: Apr 2005
Location: UK
Posts: 734
Default

Originally Posted by MatsNorway View Post
Lovely arguments people...

It ain`t a little unstable. Its more like: i wanna go this way if you as much as even thinks of going of throttle.
With a one-way in the rear, it'll do that same thing, but ON the throttle instead.

Sounds like you have a massive tweak issue, or something in the setup isn't equal left to right (ride height, droop, camber, toe, shock lenght etc). I'd put it mostly down to build tolerances between the plastic parts, as cheaper Tamiyas aren't as well made as the TRF or TA04-onwards cars.
academygaz is offline  
Old 03-07-2011, 04:10 PM
  #12  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,533
Trader Rating: 14 (100%+)
Default

I have run a one way in the rear. It's just different. Hard to explain. But it was driveable.

I think it has more to do with putting a 9t in a TL01.
skypilot is offline  
Old 03-07-2011, 04:31 PM
  #13  
Tech Addict
 
academygaz's Avatar
 
Join Date: Apr 2005
Location: UK
Posts: 734
Default

An EZRun 9T is similar to a bad 10.5, a bit softer on the power delivery with less RPM, so a bit like like a 19t brushed.

Its not a power issue, its a setup issue.
academygaz is offline  
Old 03-08-2011, 02:19 AM
  #14  
Tech Master
 
daleburr's Avatar
 
Join Date: May 2010
Location: Oxfordshire, UK
Posts: 1,002
Default

Reduce the drag brake as much as possible
Reduce the maximum brake
Get the weight distribution to about 50% front and 50% rear
Detweak
Stiffer springs
Thicker shock oil
Less droop
daleburr is offline  
Old 03-08-2011, 04:21 AM
  #15  
Tech Addict
Thread Starter
 
Join Date: Jul 2009
Posts: 542
Default

Im going to try spool again in the front. (last time i made cork screws of the yeah racing CVDs YR is crap i know)

I have HPI advan tires i think/or x-pattern. Carpet tires. I run carpet.. and kinda hard inserts.

I don`t have drag brake on..

what you guys think about trying HPI LP rims.. say 29mm front and 35mm rubber tires at the back for more grip and stability.

I have worked on the weight F/B L/R alot. its not 50/50 front/back.
but not half bad.

Edit: been reading in the hudy setup manual now.. It states harder springs in the back and softer front. I have that :/


Guess i have to try brick hard suspension all around.

Last edited by MatsNorway; 03-08-2011 at 05:31 AM.
MatsNorway is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.