BJM

iTrader: (1)

I know the A/C shuts off under high throttle, can someone tell me all the conditions where this will occur, does the A/C get shut off due to RPM limitations as well?

2xLS1

iTrader: (25)

typical settings

12secSS

iTrader: (30)

If the preset RPM or TPS% is exceeded, the A/C clutch will be diabled. It will re-enable at a preset, and lower, RPM or TPS%. Only one needs to be exceeded for this to happen.

BJM

iTrader: (1)

I had looked up the spec for similar Delphi compressor and its rated RPM was 6500 and with the pulley ratios that engine RPM makes sense.

The TPS settings seem impossible, on these cars can the throttle actually get to 100%? If I stomped the pedal on the floor at low RPM the A/C would never come on again, or would being below the RPM limit reactivate it?

12secSS

iTrader: (30)

You really do not want the A/C enabled while at 100% TPS, yes these cars will reach 100% when you mash the throttle. The reason the A/C disengages is not only to save the compressor, but to limit the un-necessary stress on the engine. Once the TPS% reaches the level you selected, like mine is set to:

A/C enable RPM: 3000
A/C disable RPM: 4000

A/C enable TPS%: 20%
A/C disable TPS%: 70%

Then the ECM re-engages the A/C clutch. The image posted is not the normal settings, those have been modified. The reason I have these settings on my truck is because I tow with it. My SS has similar values to allow the engine to put more power to the ground without being dragged down by the A/C compressor.

2xLS1

iTrader: (25)

The image posted is straight from a stock 02 M6 F-body file.

jimmyblue

iTrader: (11)

I don't like the 100%/0% settings even though my
car will hit both. That means (like on a highway trip)
if you pass somebody once you won't have A/C again
unless you drop out of cruise and release the pedal. I
set mine to 4000/3800 for RPM and 70%/50% TPS
(Edit>System>A/C for HPTuners users).

12secSS

iTrader: (30)

Autos have different settings than what you posted. The reason your are like that is due to being an M6, where you can press down on the clutch after you are finished with a WOT run, possibly in 3rd or 4th. When you are coasting, you are not on the accelerator and the TPS % is at 0 ... so your A/C will be re-enabled when you shift back to 6th. On autos we just let off of the throttle lightly to go back to our previous cruising speed, we do not need to go 0% TPS. You should have mentioned the example shown was from a manual, which probably is typical. On autos, that is not the case at all. I was referrencing your car (A4 in sig) and the data you posted, that would have been modified data for your car.

2xLS1

iTrader: (25)

I tune so I have more stock files than I care to count. All 99-02 A4 and M6 F-body files are set like the pic I posted from the factory. 98s M6s are set RE/D - 3650/4000 - 81%/86% and 98 A4s are RE/D - 3950/4294 - 100%/100%. Vettes are even different from those. The settings I posted were used on such a wide span of years and tranny types is why I chose to post those and why I called them typical.

12secSS

iTrader: (30)

Not on our 1998 Z28, 2001 SS, 1999 Sierra and 2002 Silverado ... all factory bin files. As well as other factory auto bin files I have. I would just say this, GM set them differently on similar cars.

FirstGen

iTrader: (10)

is something you can edit on LS1Edit also? If so where is this at?
Thanks.

SmokingWS6

iTrader: (1)

On all the cars I tune that have the 100%, 0% setting I change to 70% 20% just like above.

Another not shown table is low pressure cutoff, if you hear the a/c compressor cycling very frequently its probably due to a low pressure situation shutting it off.