Hey guys. This is my first post here, hope i'm not violating any rules with this post. I searched around and didn't find much, I'm just curious about something. Whenever my A/C is running on my D15, it's really slow to rev, shifts hard (because it's 5 speed and the RPM's drop really quickly) and the idle is anything but steady. I realize that the A/C takes power to run, but it literally makes my car feel dead. It's pretty quick when the A/c isn't running.

So, how bad should A/C affect my engine? It seems a little extreme.

 

its pretty noticeable, shifting shouldn't really be affected though

 

I just worry that my A/C compressor is either defective or garbage. The A/C blows cold, but it just seems to me sapping too much power and slowing the revs between shifts... I'm just curious if this is normal.

 

yea it's pretty sad but what sleeper said is true. i couldn't believe it myself when i felt how much running the a/c affected acceleration.

 

Same happens to my del sol with a jdm zc. Feels like its dual point when the ac is on.

 

Ah. I guess I feel better now. I forgot to mention that it's an aftermarket A/C system.

Is there any way to control when my A/C compressor turns on and off? It'll blow cold, then the compressor will shut off long enough to let the A/C get noticeably warm, then it'll kick on again.

 

well that's what it's supposed to do. if you want to turn the a/c compressor off then hit the a/c button lol

 

I mean I want it to stay on constantly when I have the A/C system on... Oh well.

 

it's not designed to stay on constantly for a reason. if it did the evaporator would freeze up. once the thermoswitch see's i believe 37 degrees fahrenheit it tells the compressor to shut down. once temp comes up a few degrees it will kick back on again

 

That makes sense. Maybe the ducting has a leak from when the previous owner installed the aftermarket A/C system, because it gets almost warm before it kicks back on.

 

the compressor will shut if the freon is low or if its icing up, check to see if either of these conditions are present