Reply With QuoteVery noticable difference in my wheezy little 2.5 with the a/c on.
Big Time Poster
AC and Power
Well, as many of you know. I got the car back from having the AC worked on (Hmmm...). I havent owned the car long and had never driven it with the AC actually working. Well, I have noticed a marked difference in performance (Power) when the AC is on. Is this normal for this car? I know that I have a slight vaccum leak which may be the problem but maybe not. What are your guys' thoughts?
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4 Grand Master
Very noticable difference in my wheezy little 2.5 with the a/c on.
"The gas pedal wouldn't go to the floor if it weren't meant to be there"
Major Contributor
My car loses 2+ mpg with the AC running.
Ramon
1994 540iA Nikasil EAT Chip
Tampa Bay, Florida USA
Green Beret Special Ops
a 2.5 can power an AC compressor??
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Big Time Poster
Wow, that's really disappointing. I'd expect a difference in mileage but such a difference in power is a surprise. I've seen large margins like this in cars like Saturns and the like, but my Honda shows only a minimal difference. Okay, now wail on me for comparing a BMW to a Saturn... come on I can take it.
Self proclaimed eBay Sleazeball
Big Time Poster
A guy I know uses his A/C only when driving downhill. Seriously. Off for flat or uphill grades, on for downhill. He claims increased engine braking, no noticeable loss in mileage, decreased brake wear, and A/C benefits (comfortable cabin) without much loss of mileage or increased cost.
I'm not sure I think that is such a great idea myself (ie: potentially increased wear on A/C components such as compressor with short and irregular duty cycle, etc. ) but there are some worthwhile points to consider in there.
Enjoy!
Fusion
Major Contributor
I can notice a difference on my V8. It's a smaller V8, but still a performance drop can be felt. Feels like when I had the OE ECU chip in there.. just not peppy- but still smooth.
Big, Big Time Poster
come on guys, stop complaining. i've driven a daewoo matiz, 0.8 l, inline 3, with about 48 hp and i didconected AC when i had to pass someone in busyer trafic. it seemed to cut the power in half... without AC it was a beast
3 Grand Master
Definitely noticable. Off the line like a snail. Passing requires much higher rev when dropping gear.
Big Time Poster
Thanks, well at least I know this is normal now.
Self proclaimed eBay Sleazeball
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