Less Power With A/C On

[BoxMann]

Originally Posted by Topless

The A/C compressor only consumes about 2-3hp which is not very much unless you have one that is failing. Then it will add significantly more load.

I sure hope that's not the problem. IIRC, a new a/c compressor is something like a $4,000 job.

Hot weather has a much greater effect on performance than running the A/C in my testing. Once the car becomes heat-soaked I may give up 2-3 seconds per lap due to both engine and tire grip losses. My personal best laps always happen with plenty of cold air at the intake when ambient temps are 50-60F here in SoCal.

Interesting. Come to think of it, I started noticing it when the weather turned hot. OTOH, I started using the a/c when the weather turned hot.

[Cosmo Kramer]

Originally Posted by BoxMann

I sure hope that's not the problem. IIRC, a new a/c compressor is something like a $4,000 job.
.

$150 for a compressor from a wrecker + $500 to replace and recharge if you don’t do it yourself.

[BoxMann]

Originally Posted by Cosmo Kramer

$150 for a compressor from a wrecker + $500 to replace and recharge if you don’t do it yourself.

Well, I was talking about a new one. I was looking at a 987 before I bought my car, and the guy just replaced the a/c compressor, and the bill was about $4,000. I think they changed the drive belt too at the time, and maybe there was something else on the bill, but nothing significant. At least that's what I recall.

[dghii]

Originally Posted by BoxMann

Well, I was talking about a new one. I was looking at a 987 before I bought my car, and the guy just replaced the a/c compressor, and the bill was about $4,000. I think they changed the drive belt too at the time, and maybe there was something else on the bill, but nothing significant. At least that's what I recall.

Somebody paid the P-car surcharge if they spent $4k on AC....