Car cooler with AC on?

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May 28, 2004 | 01:21 AM

sandmanusd

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Drifting

Joined: May 2004

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From: Central CA

Car cooler with AC on?

Ok, wierd question, but I heard from someone that the Vettes run cooler at idel and what not when the AC is on... explanation given is that the fan runs while the AC is on, which in turn cools the engine.. but when the AC is off, the fan only turns on when engine is 250+... any truth to this? :confused:

May 28, 2004 | 01:34 AM

99C5Vert

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From: VA

St. Jude Donor '03-'11

Re: Car cooler with AC on? (sandmanusd)

not exactly. Fan comes on at 226 I believe. If you have the AC on, the second fan comes on as well, but I'm not sure at what temp.

Edit: this is easy to try. start your car and let it idle while watching coolant temp... at 226, fan should come on. turn AC on and off and listen to fan noise.

[Modified by 99C5Vert, 1:35 AM 5/28/2004]

May 28, 2004 | 05:59 AM

pure energy

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Joined: Jan 2004

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From: hamilton ontario

Re: Car cooler with AC on? (99C5Vert)

When the Air conditioning is on,the cooling fans come on.The fans come on with the a/c ,no matter what the temperature is :yesnod:

May 29, 2004 | 06:53 AM

ndirishr1

Burning Brakes

Joined: Aug 2002

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From: Indianapolis Indiana

Re: Car cooler with AC on? (sandmanusd)

I use this trick when we run 4th of July parades. Definitely stays cooler with the A/C on because the blower runs more.

May 30, 2004 | 02:06 AM

sandmanusd

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Drifting

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From: Central CA

Re: Car cooler with AC on? (pure energy)

Quote:

When the Air conditioning is on,the cooling fans come on.The fans come on with the a/c ,no matter what the temperature is

So it does stay cooler with A/C on then? and the fan runs with AC on. no matter the temp..? :shocked:

May 30, 2004 | 02:56 AM

Dope

Resident moron

Joined: Jun 2003

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From: Assachusetts

Re: Car cooler with AC on? (sandmanusd)

Quote:

When the Air conditioning is on,the cooling fans come on.The fans come on with the a/c ,no matter what the temperature is

So it does stay cooler with A/C on then? and the fan runs with AC on. no matter the temp..? :shocked:

Yes. This is nothing special, most cars do this. The fans get air moving through the radiator and AC condenser.

Dope

May 30, 2004 | 07:38 AM

AFVETTE

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From: Swansea IL

Re: Car cooler with AC on? (sandmanusd)

During a recent dyno day some cars temps would rise, so they would kick on the AC and sure enough the temps would fall to about 205 or so from well over 220. I know the fans kick on earlier with the AC engaged.

Considering I grew up in the 50 and 60's this concept is alien to me but it sure works when I'm sitting traffic and I see my temps start to creep up, I turn on the AC.

Tom