I've had this problem with both of my turbo Supras. I found a radiator shop that built me a couple of 3 row radiators. They helped, but the cars still run hot in the Phoenix summers. I changed the fan in the 1990 to a direct-drive stainless steel flex fan, and that helped, but it's a bit noisy.

In the summer, at ~110+ deg., both cars get up to ~220-230, on accurate gages, and the faster I drive the hotter they get. I run 50% antifreeze to keep the boiling point high. Both cars have good head gaskets.

I am convinced that Toyota screwed up and should have provided for a lot more airflow thru the rad.

^You should ask mrnickeleye about keeping your turbos cool. He lives in the desert as well and made some modifications to his N/A to keep it running cool, and they might help your turbos. Only I can't remember exactly what he did, but it had to do with cutting something out to increase the hot air flowing out.

The rubber seal that runs along the back of the engine bay above the firewall.... I know he removed that. it helps some heat escape through there.

Also make sure ur radiator cap is in good condition

Head Gasket
 

Hey, my car finally spilled coolant everywhere when I drove it.....and I got the hydrocarbon test done. It was indeed the head gasket, though we are unsure of the severity of the problem.

My mechanic has said that this is a very costly repair, and he is urging me to get a whole new motor....what would you all recommend?

Please help me save my baby!!!!!:help::help:

You could buy a new engine, but it wouldn't be smart to buy one and not do a rebuild, because that engine might have a bhg as well. Either way you are going to have to tear down a engine to see whats wrong if anything.

I would suggest you get the crank checked to see if it is withing tolerance of the TSRM, if it clears then you can do a rebuild on the engine you have now and keep your engine.

Do an ac delete and get rid of the condensor blocking the radiator.

SC: Is this the same mechanic that unplugged your coolant sensor??
If it is. Find a new one or start gearing up to get dirty. Because if this guy didn't know about the sensor. You don't want him near the internals.
This is your car not a guinnea pig.

a new engine is going to be just as costly, if not more, and probably will blow a head gasket within a short time if its on the original gasket

>"Do an ac delete and get rid of the condensor blocking the radiator."<

Except that I live near Phoenix, and the days may not get below 100+ until October----.

rebuild what you have use a stronger gasket and try some water wetter it works really good for about 3months my dad uses it in his drag car dropped his operating temp from 220 to 180-200

Exactly!!!
The fact that your mechanic did this leaves little room for doubting the fact that he is indeed a moron.