When I turn on the AC in the IROC I swear I can feel the change in power. Now whenever I drive my Cavalier (yeah I know ) and I turn on the AC I don't feel any change in perfromance. I know that the IROC has more power than that little car, so what's the deal? Is it a different compressor design? Is it a lower pully ratio for the small higher reving engine?

 

Don't know but I can feel the difference when I hit the a/c in my Big Block powered 71 Impala

 

more efficient compressor and a/c system design.

 

Now here's the money question. Has anyone put one of those A/C systems into an older car?

I see a lot of you out there removing it, but it's hot down here (near 100F forcast tomorrow) A/C is a necessity.