a/c question

[varg]

Just remember, don't open your windows all the way. Only a little bit. When you open them fully it creates a lot of turbulence and increases the size of the wake big time. I remember when tuft-testing my VGs when I opened my windows all the tufts of yarn went all wonky because the mass of turbulence the windows created wrapped around the car.

[rvanengen]

If you are worried about adding hot air via the heater core, you could put a manual shutoff valve on the inlet line from the engine, and ensure that no hot coolant is flowing to the heater core in the summer.

[Bill in Houston]

I just leave the knob turned all the way to cold...

[rvanengen]

Me too...luckily, my car has a manual button for the compressor, so I just turn the climate control all the way down, and if it gets cool enough, I can just turn the compressor off until I want it.

[Bill in Houston]

Originally Posted by rvanengen

Me too...luckily, my car has a manual button for the compressor, so I just turn the climate control all the way down, and if it gets cool enough, I can just turn the compressor off until I want it.

Mmm-hmm. Me too.

[cheapybob]

Run AC full cold on recirc if you really need it, and turn AC part off/on manually leaving fan on 3rd position.

AC ruins gas mileage

[Hockey4mnhs]

Or never use it and you WILL get used to it eventually

[GasSavers_bobski]

Originally Posted by rvanengen

If you are worried about adding hot air via the heater core, you could put a manual shutoff valve on the inlet line from the engine, and ensure that no hot coolant is flowing to the heater core in the summer.

Every water-cooled car I've seen already has one. It's generally cable-operated by the temperature control just like the air mix flap, though some cars have a vacuum or motor operated valve.