Originally Posted by Skiddins

If you've had to go that extreme with the rollbars you have another problem.

NOBODY runs without a rear roll bar as it effects the transition of the car.

Post your setup so others can have a look and make sure you fill in as much information as possible.

Skiddins

Originally Posted by Barry_Hughes

Have to disagree Damien, I ran without the rear roll bar at Eastbourne in the SRL in my last final leg as I was struggling with set up - set the fastest lap and apart from a couple of bad laps (bit of unfortunate maneuvers by other drivers as I was getting past them ) would have won that leg.
Wish I had taken it off a bit earlier

Originally Posted by cyba888

guys I am getting understeer and would like to decrease it a little bit more. Also want the car to have better turn in on slower corners.

my current setup on asphalt is below

530CST shock oil front and rear
2.5 springs all around
shocks laid all the way down front and rear
rear diff 2000 oil
stock sway bars and everything else is from stock setup.

I have all the option sway bars and springs to test out just not sure which setting I should touch first

Originally Posted by Skiddins

Interesting. I have thinner roll bars in case needed, but I never take them off completely as when I used to do that (a few years ago now) it felt good and did increase rear grip, my lap times suffered as it seemed to be worse on parts of the tracks with changes in direction.
There was always something else that could be changed to give me a better result.
I have never removed them since

Skiddins

Originally Posted by Barry_Hughes

I wanted to try thinner bars but only had thicker ones for the rear, no-one else running the T4 had any thinner, so decided to remove it completely.
Funny though at Eastbourne the times improved considerably

Normally like you I always run roll bars.

Originally Posted by CristianTabush

I agree that your oil is a bit thick. Which piston are you running? To get more steering I would start by adding 1mm of of shims to your steering rack for a total of 2mm. After that, go to the short camber links front and rear. Finally shorten your wheelbase in the front and rear of the car by 1mm (bring the front arms back and the rear arms forward).

Sound familiar Damian?

Originally Posted by Barry_Hughes

Why do you refuse to put thicker oil in the rear diff?

If you look on Xray's own forum the top drivers all run with thicker oil.

I run on carpet & ashpalt, when I first had my T4 I ran with kit oil in the rear diff changed it to 2000 and would NEVER go back to 700, the car is so much better with the thicker oil.

Never ever say no to any change advised, try it, if you don't like the difference it makes go back, but it is always worth trying something

Originally Posted by Skiddins

Interesting. I have thinner roll bars in case needed, but I never take them off completely as when I used to do that (a few years ago now) it felt good and did increase rear grip, my lap times suffered as it seemed to be worse on parts of the tracks with changes in direction.
There was always something else that could be changed to give me a better result.
I have never removed them since

Skiddins

Originally Posted by cyba888

You mean remove all the shims under the camber links?

Originally Posted by erchn

I had great luck with no rear bar and a very light front bar (thanks Paul L. for the loaner) at the Reedy Race this past weekend. The car was very easy to drive and felt really consistent corner to corner. The key was a relatively stiff set of springs from RSD. My setup is here.