well xjet doesnt look like 85 bucks is going to be what you pay for the next one. i went to look for one and tower shows yours is discontinued. the one that replaced it is 125

old
http://www3.towerhobbies.com/cgi-bin...?&I=LXKF93&P=0
new
http://www3.towerhobbies.com/cgi-bin...?&I=LXKF99&P=0


hopefully your lhs has some still in stock looks like a superb engine. I had always heard bad things about those engines but i have noticed most of the people who used to say that probably haven't ever actually flown with one either. yours makes for a cooler story you should send the photos to them as a testament to the abuse they will take lol.