2.4 with AC on

[AeR0]

anyone notice how much power u loose with the AC on in these 2.4 grand ams..

wow...

i was suprised... i imagine its the same with all the 4cyl cars though...

[nice96gt]

My V6 loses so much power also. It seems like everything is cut in half. I was trying to pass a truck one time and I had the A/C on, usually I have no problem with power issues, but I actually had to turn it off to get enough power back to pass. I couldn't believe it!

[AeR0]

yeah i know..
i was doing the same and i was like **** i got a 3cyl now.

the 4th is running the AC

haha

[nice96gt]

Originally posted by AerosGA
yeah i know..
i was doing the same and i was like **** i got a 3cyl now.

the 4th is running the AC

haha

So true though. I wonder if there is an easy/cheap solution that will bring some of that power back...probably not since things are usually never easy/cheap, but you never know.

[AeR0]

thats why i threw up this post


like my motor is completely stock

so i dont know i guess just wait and see if anyone else has a solution!

:roll2:

[azeniskid]

okay the a/c compressor is run off the accessory belt, such accessory belt is linked the crankshaft... the a/c compressor when "turned on to blow cold" has to engage a lil mini clutch deal in there which than forces the motor to sap up more power to keep movin.... um yeah...

turn off your a/c

[AeR0]

haha yeah i thought so..

so enjoy the ride nice and cold but when it comes time to pass the big rig turn off the AC!

:lol: :lol:

[RocketFast321]

On my car the a/c cuts out at wot. I remember in the summer getting on the interstate with the a/c on hi and flooring it. Warm air would start coming from the vents.

[cyrrus]

actully I never noticed that much of a difference. When I had my Saturn with the dual overhead cams. when I turned on the AC the rpm would go down a bit but with the GA I've never notice any difference. Then I hardly ever use the AC

[Goldfever]

Yeah the ac really sucks the power out of my 2.4! I usually just turn it off and roll with the windows down.

[litdevil316]

here a funn lil trick i found out after i got my car. stump the gas and go WOT with the ac on, then turn the AC off, feels like a small shot of n2o or something. i know it not much, but i sure as hell can feel it.

[mthegodfather]

Yeah just leave the A/C off for passing and racing.

[Lash]

I ran .7 slower when I forgot to turn my A/C off at the track. It was damn hot waiting in the staging lanes forever :)

[litdevil316]

yea. AC, we love it so much, but we hate how it robs us blind. lol

[carlover626]

My A/C does the same to my engine power, I just leave it off. Although I have a weird question. When I put the temp knob to hot and set the vents to dash and floor, right past the A/C position, the engine sounds like the A/C is on, and my rpm's rise, not for long but it does do it. Is that just because I have to pass the A/C setting or is there a problem?

[litdevil316]

i think mine does that too. my AC is broke so i cant tell. i got the reg marked AC points then the one just right of them is "compressor on" as well, i can tell by the way the car sounds like with the muffler with AC on.

[RocketFast321]

On my car the compressor will turn on in windshield and feet or when you just have it set for windshield.

[litdevil316]

yea, thats your defrost. every car i can think of does that. its so the motor warms up faster, which it does, when the compressor is on.

[azeniskid]

what a/c? *giggles*

[matts]

it drains power in every motor........same holds true for my V8. turn it off and squal tires........turn it on and you'll get a little sound from them, but not much

[litdevil316]

yea, but my now AC compressure doesnt want to kick on.

[Quantum]

A/C is on when you are in the following modes:

MAX A/C
A/C
Vents/Floor
defrost and floor
defrost

So to answer your question, when you have the knob set for vents and floor, your A/C is running, eating up your fuel. Ah luxury!

Regards,

[litdevil316]

yea, fuel it does eat, or well, drink

[RocketFast321]

Weird my a/c is only on it Max, Floor&Windshield, and windshield

[litdevil316]

your switch mess up?

[RocketFast321]

i know my 2001 has a a/c switch. But when the a/c switch is off, and you turn it to Max, Floor&Windshield, and windshield the a/c comes on

[litdevil316]

well, not sure of the 99+ but with most any car, defrost will turn the A/C compressure on, helps to warm up the motor faster.

[tenspeed]

Originally posted by litdevil316
well, not sure of the 99+ but with most any car, defrost will turn the A/C compressure on, helps to warm up the motor faster.

Actually, the A/C comes on to take the moisture out of the air. When you have the heat on, the air gets chilled first then heated.

In some cars there is a vacuum switch connected to the compressor clutch wiring. When the vacuum decreases with acceleration, the compressor turns off for more engine power. It's a easy addition to any motor.

[gbe357]

i'd say....take the AC out completely....and thats the reason for a sunroof and windows..or you could go convertible....
http://activities.fit.edu/thetaxi/buttons/gbe357/photoshop04.jpg

[RocketFast321]

Originally posted by tenspeed
Actually, the A/C comes on to take the moisture out of the air. When you have the heat on, the air gets chilled first then heated.

In some cars there is a vacuum switch connected to the compressor clutch wiring. When the vacuum decreases with acceleration, the compressor turns off for more engine power. It's a easy addition to any motor.
I think the newer GAs have it summer time a/c on max, floor it and the air gets warm. Well my car does that

[RocketFast321]

Originally posted by gbe357
i'd say....take the AC out completely....and thats the reason for a sunroof and windows..or you could go convertible....
http://activities.fit.edu/thetaxi/buttons/gbe357/photoshop04.jpg

me like the chop. :) I can not live without a/c, and i don't trust the power windows in my car

[litdevil316]

had both my power window motors go out on mine, both at diff times. and for the A/C with the deforst, either way, it still does warm it up faster.