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Old 03-07-2011, 04:45 AM   #1
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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?
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Old 03-07-2011, 05:08 AM   #2
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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.
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Old 03-07-2011, 05:12 AM   #3
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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)?
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Old 03-07-2011, 08:08 AM   #4
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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?
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Old 03-07-2011, 09:29 AM   #5
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Old 03-07-2011, 09:32 AM   #6
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Quote:
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.
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Old 03-07-2011, 10:53 AM   #7
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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.
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Old 03-07-2011, 11:03 AM   #8
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Is the car balanced evenly left to right with even left to right droop settings?
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Old 03-07-2011, 11:12 AM   #9
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Left/right weight balance is pretty good.
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Old 03-07-2011, 11:23 AM   #10
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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?
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Old 03-07-2011, 02:14 PM   #11
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Quote:
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.
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Old 03-07-2011, 04:10 PM   #12
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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.
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Old 03-07-2011, 04:31 PM   #13
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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.
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Old 03-08-2011, 02:19 AM   #14
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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
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Old 03-08-2011, 04:21 AM   #15
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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.
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