Car Control...

[godale03]

Hey guys,

I have a question I hope you can answer. I have a T4FT running a novak 6.8V BL system. I have loosened the ball diff, but have not touched the slipper. It is currently set factory. I am having a hell of a time keeping control of the car on pavment and no control on dirt. I keep spining the car out and when I hit the brakes I spin out. Even when the car is in motion and at about 3/4 throttle... I loose control as soon as I punch it. I guess the question is... what do I need to do to make this rig driveable in race conditions? I am playing with drag brake, but really see no difference in the cars handling. I know with a 2WD truck you do alot of controling with throttle inputs... but this is getting rediculous! Thanks in advance.

Tom

 

[beason]

is the rear toed in? whats your setup? any binding in the rear axles, bearing in the carriers going out? wheels to tight?

 

[godale03]

is the rear toed in? whats your setup? any binding in the rear axles, bearing in the carriers going out? wheels to tight?

Rear Tow set to factory. I am running 30wt front, and 35wt rear. No binding in the suspension... it all seems to flow smoothly. Bearings are brand new... of course it doesn't mean there isn't a bad one. The wheels don't seem to be to tight and spin freely in the front. The truck tracks straight at low throttle, it is just at full on throttle and braking I am havning the most trouble.

Tom

 

[beason]

wheels and bearings in the back could be tight/bad. ife had that befor. the diff will let the looser wheel spin more and you get a nasty torque steer

 

[HeartBreak]

How is your pack set? Your weight bias is a huge player in the handling. Otherwise, it'll take practicing the throttle (easy on, easy off, grasshoppa!) to gain the control.

 

[godale03]

Pack set dead center. It actually sits in a tray that is just big enough for the pack.

Tom

 

[FastEddy]

IMO, your probably way over powered.
When you take off quickly, do you pull hard to one side? (Known as torque steer)

If this is the case, you need to do some adjusting on your slipper and or on the radio / ESC.

Try reducing the total voltage getting to your motor with the ESC or radio whatever is the easiest. If this helps, get it to where its just a little over powered then start playing with your slipper till you can accelerate close to WOT with no torque steer. If you try to do this with the slipper only, it will be to loose and you will be trashing them left and right.

 

[godale03]

IMO, your probably way over powered.
When you take off quickly, do you pull hard to one side? (Known as torque steer)

If this is the case, you need to do some adjusting on your slipper and or on the radio / ESC.

Try reducing the total voltage getting to your motor with the ESC or radio whatever is the easiest. If this helps, get it to where its just a little over powered then start playing with your slipper till you can accelerate close to WOT with no torque steer. If you try to do this with the slipper only, it will be to loose and you will be trashing them left and right.

Gottcha... I will take a look at the voltage settings and see if I can adjust... along with the slipper.

When I gun it, it spins the tires and cuts a 180. As long as I ease into the throttle it handles much better, but any instant type throttle response sends it around.

Ed.. you are probably right.. I am probably over powering the thing... but then again... is too much power really a bad thing? :whistle:

Tom

 

[SIRMAXXALOT]

Eddy hit it, the slipper is a biggy in controling it out of the hole. You may be overpowered but loosen the slipper and take some of the expo out and this will help.--I think--lol

 

[Gforce]

suspension may have some to do with it too. WHat kind of surface are you running on? dirt or clay? loose or hard packed? smooth or bumpy?

Where I race, its a hard clay track with high traction so we tend to need the suspension a little stiffer in the front. This allows the truck to "squat" on acclleration thus providing more bite to the rear tires. The surface you run on has everything to do with how your truck handles. Ofcourse punching it to WOT out of a turn will probably cause a spinout on any track.

 

[godale03]

suspension may have some to do with it too. WHat kind of surface are you running on? dirt or clay? loose or hard packed? smooth or bumpy?

Where I race, its a hard clay track with high traction so we tend to need the suspension a little stiffer in the front. This allows the truck to "squat" on acclleration thus providing more bite to the rear tires. The surface you run on has everything to do with how your truck handles. Ofcourse punching it to WOT out of a turn will probably cause a spinout on any track.

Track surface is Hardpacked with granular surface. Not blue groove by any stretch. The track is also very rough. I have not had much time to test a bunch of setups out yet, and the weather is not cooperating much either. I will get out there and give a few things a shot and report back. Thanks for the info.

Tom