I have experienced exactly the same problem with both engines failing shortly after take off. I will also try limiting the power, keeping an eye on the gauges. Did this cure the problem for you Igor?
Also however, despite setting the pitch trim to zero before take off, the aircraft rotates and lifts off prematurely, without any stick input and I need massive amounts of pitch trim down (forward stick) to control this pitching up of the nose. It is as if the CG is much to far aft, yet it it is fine, according to the balance sheet. I am flying solo, with main tanks 3/4 full.