Quote:
Originally Posted by ps2cho
The cool harness mod is not what I need. I need to stop it getting to 100C point before the fans kick in. Out here when it hits 120F, its incredibly difficult to cool the engine down, its not a matter of fans turning on and it suddenly drops.
I need to make it so that it slows the rise.
So the cool harness mod is not what I need.
Also raising head pressures is the opposite of what I want. Increased head pressures increases condenser temperatures, which raises coolant temperatures, which raises condenser temperatures which lowers A/C cooling. Its a vicious cycle. Plus, I don't feel the need to contest with MB Engineering on pressures or reduce efficiency and longevity.
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The thing is- increasing the head pressure in
relation to the ambient temp (by increasing the charge) causes the AUX fan to kick on earlier. The AUX fan is both temp (by coolant temp) driven, and by high side system pressure. Raise one or the other and the AUX fan comes on. You won't be charging the system beyond spec, but to the maximum allowed.
Bypassing pressure switches isn't a good idea, either your compressor may die one day due to low freon (and you won't know it till it's too late) or you'll run the system till a barrier hose pops.
Read the thread I linked- note the mode of operation, and the fact those systems are properly charged by pros.
rjp