No they don't "rig the solenoid" they use a Killer kit that eliminates the low end vtec lobe. http://www.todaracing.com/products/h...ec_killer.html there is an example of a killer kiet. The reason for this is they don't need it since they are never in a low rev range and it takes a whole lot of dead wieght out of the valvetrain that otherwise wouldn't be used. also not all drag racers do this only the smart ones