I seen this engine last night, after it was run a few times.. ONE word to describe the engine is junk. After the engine was run it was taken apart. The motor after a few runs looked like it was over 100 times. This is how much junk this engine is, do balance the turbine wheel they grinded the back side (which was a deep groove), which now the material is real thin right near the center section. Injectors were clogged, corrision galore, etc... Outside looked real nice and pretty, inside a nightmare!! This engine is a hazzard waiting to happen. I would not trust this engine on a test bench let alone a $3000 jet, not to mention the saftey of others while at a flying field or jet meet. ** DO NOT EVER THINK OF BUYING THIS ENGINE, NEVER!! **