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oldertech · 05-08-2010, 10:03 PM

It's the nice time of year where you can drive without A/C here in Kansas, and leanburn is at its best on the highway on the Honda VX, or any other car. As soon as the AC gets kicked in, FE drops.

My idea.... A/C is preset to a certain temp and it cycles on and off based on that preset. Is it adjustable? When I get too cold, my only choice is to either turn off the AC button, or add heat to the system with the temperature control. Inefficient, don't you think?

Assuming that there is no adjustable control somewhere inside the Honda A/C unit on the '92 system, I'm wondering if a secondary A/C thermostat may be installed. (The old underdash A/C units used these switches that had a sensor bulb that read the temp from the evaporator coils and flipped switch contacts on and off.) The adjustable knob could be installed in the dash. It could simply interrupt the signal going to the compressor and turn off the clutch. I could run my AC and decide how warm I want the car for maximum FE.

Thoughts?????

05-08-2010, 10:03 PM	#1 (permalink)
oldertech OldertechGuy Join Date: Aug 2008 Location: Topeka, Kansas Posts: 51 Scott'sTxVx - '92 Honda Civic VX 90 day: 48.7 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	A little less AC, please. It's the nice time of year where you can drive without A/C here in Kansas, and leanburn is at its best on the highway on the Honda VX, or any other car. As soon as the AC gets kicked in, FE drops. My idea.... A/C is preset to a certain temp and it cycles on and off based on that preset. Is it adjustable? When I get too cold, my only choice is to either turn off the AC button, or add heat to the system with the temperature control. Inefficient, don't you think? Assuming that there is no adjustable control somewhere inside the Honda A/C unit on the '92 system, I'm wondering if a secondary A/C thermostat may be installed. (The old underdash A/C units used these switches that had a sensor bulb that read the temp from the evaporator coils and flipped switch contacts on and off.) The adjustable knob could be installed in the dash. It could simply interrupt the signal going to the compressor and turn off the clutch. I could run my AC and decide how warm I want the car for maximum FE. Thoughts?????