Thanks notme! very usefull tips. Thing is, I know allready the theory of the jump. I've watched a lot of youtube vids earlier. I think, the problem wasn't then while being in the air. In the air I couldn't do anything, and I think it is because the car is only 2wd, so it didn't pull up its nose when on the throttle like a 4WD does. Also I am sure that the car wasn't nose heavy. I think, the solution would have been the following: not to try to control it in the air (which anyway didn't work at all) but to give it the right throttle before leaving the ramp, which theoretically would have been pushed down the rear and lifted up the nose.
I will have to buy several front lower arms and other front suspention spares and start practicing
