I am noticing higher than average temperatures when driving at highway speed. In fact the temp increases as I cruise, all the way to 215*, I am wondering if the GTP's came with 1" from the factory. I know mine was replaced at some point and it is only 5/8" thick. I don't think that this thing is thick enough for use down here where the temps are in the 100+ range and very high humidity. I am just wondering what the normal is for these cars. I am going to get a 1" thick cored one this weekend and change it out.
I have looked at the ducting and don't have anything broken missing or out of place so I should have more than enough airflow to keep the engine cycling off of the thermostat without issue. When I am in traffic the temp runs pretty low in the 197-206 range with the AC running. I also noticed that when I shut the AC off that the temp dropped a few degrees due to not having the heat load from the condenser to deal with but wasn't able to remain at speed long enough to see if it would drop in temp.
Jeff
