Quote:


So what has been the experience of anyone going from to a wider rim and/or from a slick to drag radial?



Don't know about drag radials, but in IHRA and NHRA Stock, where we are limited to a 9" slick, most people run a 10" rim, if it will fit. Depending on the car and tire, pressures can be anywhere from 14 lbs to 24. But I have heard of some being higher. As mentioned before, the wider rim allows more air, which stiffens and prolongs the life of the sidewall and helps maintain a fuller contact patch. Radial slicks are faster and usually need more air pressure. But they are more sensitive to track conditions.