How much are the electronic nannies in the Crossfire still kicking in even with traction control switched off? I know it's never really "off" with these cars, but the EVO et al quite often will disable TC fully. Add to that the fact that these guys are probably running not only engine mods but suspension mods, R-compound tires, etc AND they know the track better than you AND they have more track time in general than you, and it's no wonder you're getting beat. If their corner speed is significantly higher than yours, and they can put the power down sooner coming out of the corners, you'll never catch them on a long straight.

The two biggest improvements you can make to lap times will be from better tires and the all important driver mod. Please understand I'm not taking a shot at you - you admitted that these guys have more experience than you. Here in the States we have the option of ride along instructors (included in the entry fee) who will work with you on corner entry, braking points, etc. They'll even get behind the wheel of YOUR car with you riding shotgun and give you some instruction that way.

For an inexperienced driver, simply piling on more power is not the answer. In fact, most driving instructors will tell you it's a very bad thing. In my lowly little Limited 6MT Roadster I've chased down C5 Corvettes, modified Mustangs, fully race prepped Spec Miatas, E36 M3s, and scared the crap out of a guy in a Porsche 911 when I significantly outbraked him from 125mph.