I posted this in the Civic forum with some results. Wanted to know if there could be something else that i can do since there are more road racers here.

My car is overheating whenever i road race it. It doesn't over heat badly because if i turn on the heat, it will run fine for the day. But i have already mixed the coolent to be 30/70 and the thermostat has already been replaced. Is there anything else i should look into besides that? I am also running a delsol dual core rad. It didn't do this before and just started for the past 2 lapping days. Thanks.