Hi All
I have an issue with running hot at speed. I've read as many threads as I could search for, but many are about running hot in extreme hot weather or in traffic. I'm at 3 o'clock in traffic on even the hottest of days.
However, when I get cruising at 80 mph even when its just 70F out, it doesn't take but a few minutes for the temp gauge to come very close to touching red. If I turn the heater on, I get a small decrease. If I slow down to 60mph it doesn't take too long for the needle to start dropping back down to a normal range. I want to add AC to the car, but want this issue ironed out first. At this point, all the potential items to try are getting to be pretty expensive experiments.
Things I've done/checked:
1) Timing, I'm exactly on and it runs awesome
2) Freshly rebuilt engine and had all the galleries cleaned and boiled out in the process
3) Gauge cluster has an extra ground wire
Things I've read about on the forum:
1) Tropical fan and/or shroud. Will this have any effect at speed, or is this more of a fix for slow traffic driving?
2) Triple core rad - seems Ingraham rads are no longer being made by Curt's successor, but I have seen where some members have gone to rad shops to have this done.
3) W&N High Performance Radiator - I eventually want to put AC in the car and this option is pretty expensive to try as an experiment.
4) Aluminum rad - i assume i lose the ability to run the fan with these thicker options. I'd prefer to stay with the original appearance.
5) Thermostat - using a lower temp thermostat. again, i'm not sure how that will impact my situation
any suggestions or other ideas would be greatly appreciated.
Thanks
Darren