No AC at high RPM

[gsrhoden]

This is the first summer I have owned my 2004 986 and in Houston traffic, driving fast is not an usually an option. However, yesterday I was passing a line of traffic and had a chance to rev the engine to the 6K range and noticed that the AC quit cooling temporarily. When I went back to normal driving all was well. To test my theory, I ran the RPM up near maximum a few more time and each time, it seemed like the AC quit cooling. The fan and everything worked as normal, just the cold air stopped flowing for a short while. Is this normal? Does the system shut the compressor off to protect it from high RPMs or should I be looking at something else.

Thanks for any advice.