[ChetG]

I find the AC to severely drain the cars power, particularly at the low end. I also notice that it is less resonsive, and looses smoothness. Also, that loud rpm driven fan seems to be on most of the time when AC is on. I try to minimise AC use for these reasons, Is this normal??

Thanks in advance.

 

[Kaz]

Essentially none.

Not enough that my ass-dyno notices.

This is a nice change, as the AC on my old car was called the 'anti-turbo' since it sucked SO MUCH power.

 

[ALEX325i]

Re: Essentially none.

Not enough that my ass-dyno notices.

I second that...

 

[Nick325xiT 5spd]

I notice a huge difference IF it is also hot and humid outside. Otherwise, it's not that bad. Above 90 degrees, the A/C just kills my engine.

 

[Dr. Phil]

I notice a huge difference IF it is also hot and humid outside. Otherwise, it's not that bad. Above 90 degrees, the A/C just kills my engine.

I would second this, especially when accelerating hard off the line. In moderate use, not a real noticeable problem.

 

[Mike 325xi]

What I notice is that the revs drop between shifts much faster...I don't notice a very big power drop though.

 

[Dr. Phil]

What I notice is that the revs drop between shifts much faster...I don't notice a very big power drop though.

Funny I don't notice that:dunno: ......that's right my rev limiter takes care of that stuff for me

That would make sense though, at idle, I notice that the RPMs lower when AC is turned on

 

[Nick325xiT 5spd]

What I notice is that the revs drop between shifts much faster...I don't notice a very big power drop though.

Funny. I notice MORE rev hang with the A/C on.

 

[vexed]

No problem

I have not noticed any signs of power robbing unlike my pickup where I shut it off sometimes to gain speed up a hill.:yikes:

 

[alee]

I only feel a slight loss unless it's very hot outside, and in cases like that I tend to think the air temperature has more to do with my power loss than the actual A/C.

 

[Nick325xiT 5spd]

I only feel a slight loss unless it's very hot outside, and in cases like that I tend to think the air temperature has more to do with my power loss than the actual A/C.

Try turning it off when it's really hot outside. It was 85 and humid outside on Friday, and I was having trouble shifting smoothly until I turned it off. There was a DRAMATIC change in the way the car behaved. With A/C on, the car bogged and didn't want to go. With it off, it revved freely and pulled nicely, though not as well as in 50 degree weather.

 

[alee]

Try turning it off when it's really hot outside. It was 85 and humid outside on Friday, and I was having trouble shifting smoothly until I turned it off. There was a DRAMATIC change in the way the car behaved. With A/C on, the car bogged and didn't want to go. With it off, it revved freely and pulled nicely, though not as well as in 50 degree weather.

Makes very little difference. There is a loss, but it's nothing like my other cars which feel like they lose about 20 hp at a push of a button.

 

[Nick325xiT 5spd]

Bah. Let's do an engine swap since you can't tell.

 

[alee]

Bah. Let's do an engine swap since you can't tell.

Oh yeah, I forgot you drive a hearse with a wimpy engine.

 

[Nick325xiT 5spd]

Oh yeah, I forgot you drive a hearse with a wimpy engine.

Yes, but I can fit you AND all your M68s into it!

 

[alee]

Yes, but I can fit you AND all your M68s into it!

But I CAN fit all my M68s into my car.

My car definitely felt a lot slower with all those M68s inside. I bet a wimpy 2.5L engine like yours would barely move!

 

[Nick325xiT 5spd]

You'd be surprised at how much I've had in my car. Besides, I bet you couldn't tell the difference if I swapped engines, anyhow. With your pansy transmission and slow driving habits, you'd never notice. :lmao: And I could fit all ELEVEN of your M68s into my car without cheating and putting four outside and one in the spare well.

 

[alee]

With your pansy transmission and slow driving habits, you'd never notice. :lmao:

At least I don't have to get gas every other day like you! I got 30.8mpg on my last tank of gas.

 

[Nick325xiT 5spd]

At least I don't have to get gas every other day like you! I got 30.8mpg on my last tank of gas.

30.8MPG! :yikes: :yikes: :yikes: You must not ever see stop signs.

 

[alee]

30.8MPG! :yikes: :yikes: :yikes: You must not ever see stop signs.

Nah, my city driving is around 21mpg. Driving between NYC and Philly, I usually get 28-29mpg. 30.8mpg was pretty special.