The reason was: pedal to the metal
. "Almost" stock 2.0 DOHC with compresion ratio over 10:1 simply hates rotations over 7k rpm (remember this)
Rear axle ratio 4.3 and speed about 215 km/h. That was the reason. I've killed this engine
Speed record beaten but it was very expensive record
This engine was mounted in FSO Polonez. Now I've this engine in one of my 131 2d's