Z06Vette.com - Corvette Z06 Forum

JLH-Z06 · 07-02-2002, 09:37 AM

Does anyone know the good, bad, or no difference in running at high RPM, near or at limiter with the AC on. I'm sure there would be some performance difference but is there harm to the compressor.

This is something that can and has happened while "protecting turf"

vette1 · 07-02-2002, 09:44 AM

I read somewhere that when car is floored A/C cuts off,i believe this to be true.

gmblack3 · 07-02-2002, 10:06 AM

Yes this is true. If you run at a road coarse leave the A/C on at all times, it will keep both fans on and your water temp will stay nice all day.

Quote:

Originally posted by vette1
I read somewhere that when car is floored A/C cuts off,i believe this to be true.

mgarfias · 07-02-2002, 10:12 AM

I remember it being WOT AND something like 5000 rpm.

ElectronZ06 · 07-02-2002, 10:26 AM

Yeah, This is a FACT. The A/C comp cuts off under hard throttle.

JLH-Z06 · 07-02-2002, 10:34 AM

This is GREAT news, thanks.

Jayzvette · 07-02-2002, 07:04 PM

Yes, great info. I had no idea the computer did this

70boss302 · 07-03-2002, 03:52 PM

And I thought it was the adrenaline rush that was making me sweat at high speeds when the whole time it was the AC kicking off!!

Bill

TAMUz06 · 07-03-2002, 06:20 PM

I have always been under the impression that it did it around 3500....never seen any hard evidence of it, so it very may well be at 5K!

Peterod45 · 07-04-2002, 12:39 PM

Quote:

Originally posted by 70boss302
And I thought it was the adrenaline rush that was making me sweat at high speeds when the whole time it was the AC kicking off!! Bill

You know this forum just never ceases to amaze me. I continue to expand my hat size with all of this info. Thanks again guys and gals.

Happy Birthday.

magnetic1 · 07-05-2002, 08:59 AM

It should happen at Wide Open Throttle and is independent of the RPM.

4vettes · 07-05-2002, 10:34 AM

Quote:

Originally posted by gmblack3
Yes this is true. If you run at a road coarse leave the A/C on at all times, it will keep both fans on and your water temp will stay nice all day.

I wouldn't do this if I were you!! Had a friend who (unintentionally) left his A/C on while on a road course track day (I was his passenger). The compressor does in fact cut out at full throttle or even 5K rpm or whatever....BUT, coming into corners and slower parts of the course the rpm drop and your out of the throttle causing the A/C to come on. The A/C comes on at typically high(er) rpm forcing the clutches to have to catch up with engine rpm. When our 20 minute session was over, we pulled into the pits with smoke coming from under the hood....the A/C compressor clutches had fried.

This was in a '96 LT4 car and unless the A/C compressor has been redesigned, I suggest driving with the windows open and go like hell to keep airflow going through the radiator.

HarryB

magnetic1 · 07-05-2002, 10:45 AM

Not to mention you are dripping water all over the place... that would piss some people off...