Took the XFire to the dyno shop today .Wanted to establish a baseline prior to doing any mods. We were unable to get it to rev past 4K. Turned off the traction control but it was a no-go. Talked to the tech at the Chrysler dealer and he said it has a sensor that limits rpm if the car does not sense enough load on the drivetrain. Went back to the dyno shop & we tried to dial in some load. He kept turning up the brake until it started to stall the engine but it still would not exceed 4K rpm. So- who's actually had a dyno run done on their car and how did you do it? :?