I run 275/60/15 MT ET SS drag radials. I can get away with running 20 PSI at a well prepped track. If the track isn't good I drop down little by little. I wouldn't run less than 16 psi on a drag radial.
A 28-inch-tall Pro Drag Radial on a 3,200-lb car should run a minimum of 12 psi; the same tire on a 2,800-pound car can go as low as 10 psi
Mickey Thompson suggests the tires be heated to within 15 degrees of the track temperature.
Drag radials need less burnout because the special compounds that make them streetable gets gummy when they are heated too much. ET Street and Street Radial tires only need a short spin to haze the tires as they heat up quickly. This brings the special compounds to the surface, increasing the stickiness of the tire. BFGoodrich suggests a light spin to clean up the rubber and put a little haze on it as well. If you put too much heat in them they start to ball up, kind of like when you rub an adhesive and get little balls of goo. That balling up can actually work against you, slowing down the car in the first 60 feet. In the end, you need to take the manufacturer’s suggestions and experiment with your car.
