View Full Version : CrAzY traction problem


bnc_customs
01-17-2009, 01:30 PM
The past few nights of racing it seem that in every turn i take, my sedan rolls over... Im not even putting any traction compound on the tires... What could i do to adjust or fix this problem?

trailranger
01-17-2009, 01:51 PM
Stiffer springs first, Or Stand the shocks up vs. having them angled, or change roll center by moving the inner piviot up. That should be the easist way to overcome traction rolls. Make sure you adjust camber angles as moving the links will affect that.

OvalTrucker
01-17-2009, 01:54 PM
I'm not a sedan racer but, I'd start by cleaning my tires and looking to see if something in the front suspension is broken or worn out.

Tires that are "gummed up" can cause traction rolling.

RPM
01-17-2009, 03:00 PM
Stiffer springs first, Or Stand the shocks up vs. having them angled, or change roll center by moving the inner piviot up. That should be the easist way to overcome traction rolls. Make sure you adjust camber angles as moving the links will affect that.

He's right.
Center of gravity height is to high.
Stiffer springs will reduce weight transfer.
Also lowering your vehicle will help too.

OvalTrucker
01-17-2009, 03:25 PM
I guess I misunderstood the question. I assumed the car was working good before the traction rolling issue. my bad.

bnc_customs
01-17-2009, 06:33 PM
Ya, it was working well for awhile, but now i cant even make it around the track once without rolling.. how should i have the camber set for the tires?

jmccormick
01-17-2009, 10:45 PM
I would check tweak first and then do a full check over on the setup if the car was working fine the all of a sudden started traction rolling with out any changes sounds like something went out of wack..even a dead shock could do it but as far as roll centers and shock angles go I dont believe they could change that much from a crash to affect a car like that. I would also take the plates front and rear and see if they are bent ohh and what has the tire wear been like if your camber if off and as the tires cone they may start to flatten out and give you to much traction......Dont forgett track conditions is this a track that can have mad traction when the temp drops and be slick when its warm. these are all things to consider..........

jmccormick
01-17-2009, 10:47 PM
What car are you running??????????
If its a corally RDX I have a good foam setup for carpet......

DOUGHBOY
01-18-2009, 12:01 AM
i would check the camber on your r/f tire or you could try going to a harder r/f tire

bnc_customs
01-18-2009, 02:11 AM
I run a xxx-s. I have been messing with dif setups, so it could be just something i am doing wrong

Its my first year running a sedan, but i did take the first seasons points championship. Im not really sure what type of setup i should be running, so i keep trying different things, but now i think i just have it so out of wack. Btw, I run a 19 turn team checkpoint money motor

bnc_customs
01-19-2009, 12:06 AM
IM not really sure how to have the shocks set or how to have the camber set for the tires... etc any help would be great, cause anything has to be better then what im running lol

matt_s86
01-19-2009, 05:34 PM
RF:
Cyan Compound tire (hard outer edge)
-2* Camber
6 deg caster
Associated Yellow Spring

LF:
Magenta Compound tire
+1.5* camber
0 deg caster
Associated White Spring

RR:
Cyan
-2* Camber
Associated Gold Spring

LR:
Magenta
+1.5* camber
Associated Gold Spring

All shock collars to equal heights

That's the setup I ran on my TC4 at JT's. Worked great.

bnc_customs
01-19-2009, 11:02 PM
how far down should i have the shocks set?

matt_s86
01-20-2009, 01:16 AM
I only went just enough to take up the slack. Then you can make minor adjustments from there with preload