Just started up a "new" K80E. Actually it is serial no. 108 made in 2009. Has the original Kingtech pump. Fired up the first time and stabilized at 45000 rpm. Flawless. Changed the parameters to the Gaspar settings to see what effect it had. The result was a "softer" start, but a little more flames during the ramp up. Believe it or not, got the engine off of a guy on Ebay for under a grand...N.I.B. Looking forward to mounting it in my Sprint.