XRAY - Model racing cars

Hello,

Got a problem with the rear end of my NT1. I've set the camber at a reasonable value that all the racers race with at my track but still have too much conical wear on the rear right outside. I have a soft setting on my shocks with a rebound of 25%. They have looked at my car and said that it needed more camber rise, i am thinking of traction roll but not knowing if that is the correct statement for it. Who can help me out what is best to do as my steering at the front is not that good and i have a solid lightweight axle, but i'm tending to try my original diff to get that steering right... Is it setting more camber rise or getting rid of traction roll?

Greets Ralph

My question too deep?

Traction roll happens when the car has so much side bite that it will simply roll on to it's roof, i don't think that is happening to your car?.

To get more coning towards the inside you van give the car more camber rise, by changing positions on the rollcenter bridge or on the upright.
To get more camber rise you need to shorten the arm.
By doing this you will make the tire incline faster for the same amount of displacement of the wishbones.

The solid axle is the faster option around rucphen, but it takes some practice to get used to it. Plus some people love it and some hate it.

What spring and anti rollbar settings are you currently running?.
For rucphen you can get away with a pretty stiff rear end, i.e. purple springs on the rear and a 2.4 or 2.6 rear anti rollbar.
Maybe fit the diff back in the car with 80k oil and then just take a look at the setup reference tabel, and start making adjustments which reduce understeer and are aimed at stiffening up the rear.

I have been practising today and i found the car very good on steering but the back was very tricky! Camberrise is ok now as well is the tire wear.

Can someone tell me what is going wrong at the back? Do i need to go back at the shocktower as i was? I have been changing the roll-center position but i don't think it has given me what i want.

This is the setup as it is now



Can someone tell me what kind of mistake i have made as you can see my other set-ups?

Thanks for the help!