[cruiser_guy]

Originally Posted by Otterav

hey,
Its most likely the radiator. When Toyota designed the car they sized the components to work with each other. You added a turbocharger, which increased the exhaust back pressure as well as increased the power output. Both of these things increased the heat in the engine. Your cruiser was designed for the 3B at its original power output, the turbo and operating your cruiser in central america , gasp near the equator. You have 2 choices 1) reduce the heat load in the cruiser(lower the power, ie. remove the turbo) 2) increase heat rejection rate(more cooling capacity)(assuming your cooling system is operating correctly).

I have a BJ60 with a turbo (with water cooling), A/C and the OEM 4 core rad. My A/C is on almost all the time. I have no issues with overheating and I'm also way down south here in Guatemala City. If there is overheating issues I would look at cooling system problems. The factory 4 core rad is quite sufficient for the A/C and turbo. If you have a three core rad then I'd suggest swapping it out for a 4 core which is what Toyota did to these trucks when they added A/C.