Is it an automatic trans? If so, (mine), I put a trans cooler on using some brackets (Lowe's) about 6" out in front of radiator. I run the fluid into it first to help take some heat off the radiator.
If you have to idle for more than a couple of minutes, you should put the trans in neutral to allow the temp to go down.
Use a 180* thermostat. Use a manual over-ride for the fan, so you can turn it on when you want.
Cycle the A/C manually (turn on/off by hand) when idling too long.
Remove the rubber strip/seal at firewall, that will let some heat out of engine compartment. (it worked great for mine)
Also..........
I discovered (by lowering my coolant to just above the core in radiator and watching the flow pattern) that the water pump does not flow much water at 6-700rpm. Just raising the rpm to 800 moves a lot more water.
You could raise the idle a bit with your foot during prolonged time periods.
PS. my car never gets hot anymore.
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Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
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