OEM AC question

[36chevy]

I live in Florida so it gets very hot here and my square is my dailey. I have the orginal AC but running a 5.3 from 2002 siverrado using the 2002 comressor and orginal clutch fan. In the morming or if its raining the AC is very cold. As soon as a get in any traffic the temp starts raising up to 79 degrees which is not comfortable.

Question is if I go electric will the increased cfm cool better and will that help with my ac problem. Also would going with an aluminum radaiter change anything.


Thank you in Advance
Jesse

[hatzie]

Electric fans will make it worse.
If the fan clutch is getting weak replace it.
Make sure you have the fan housing in place so the fan draws all of its' air through the cooling pack.
The cooling pack used to have waxed cardboard wings make sure the fan sucks air through the condenser and radiator.

If you have too much oil and any mineral oil floating around in the system it'll negatively affect your cooling.
Did you flush the hoses, evaporator, and condenser? The dryer is loaded with oil so you have to change it.

The R12 orifice valve is too large. It'll work with R134a but it won't cool as well. The Corvette guys use the Ford blue orifice valve.

If your refrigerant charge is too low the evaporator will freeze up. I recently posted a method to charge an R12 system with another refrigerant and not have too much or too little refrigerant be it Hydrocarbon or R134a or HFC152 or ...
https://www.67-72chevytrucks.com/vbo...1&postcount=10