XRAY - Model racing cars

There are alot of ways to help reduce roll. One of the most frequent ones is stiffen up the front end. I this case, using harder tires up front than in the rear. Try also

Also put the tires on the wider setting on the rim slots to give it a slightly wider wheelbase.

A very important part is you shouldn't have to turn lock to lock on your steering. Try turning down your steering trim so you juuust get enough steering to make your turns. The less of an angle the wheels have to turn at, the less chance that traction roll will happen.