This is a question on a problem I had , but never got an answer for , so here we go . A couple years ago I was racing a track and really had a problem getting the kart to grip in the corners , I was down to 5 psi on the right sides and 4 psi left and it really did not help . Someone had seen me struggling , asked what pressures I was running , and told me to go up to 10 psi in the rights and 8 in the lefts . When I asked how it was going to help , with me figuring if I made the tire harder , how would it grip , he stopped talking to me , maybe he thought I was thinking he was BS'ing me when all I wanted was a answer to how it would help . Track was VERY dry , but not as dusty as I thought it would be , so could someone please explain it to me ??