Aircon induced power loss?
Aircon induced power loss?
Author
Discussion

Al D

Original Poster:

159 posts

295 months

Sunday 4th September 2005
quotequote all
I've done a quick search about this and have found a few related threads with respect to the aircon affecting idle speed etc, but has anyone else ever noticed a marginal increase/decrease in power when driving as the aircon clicks off/on? At times, mine almost feels the same as a very light application/release of the brakes!

I am of course very new to the car and am tending to notice every unusual characteristic, but coupled with my previous question about aircon noise, I am increasingly concerned that I may have a minor problem with my aircon pump or compressor?

ThatPhilBrettGuy

11,810 posts

263 months

Sunday 4th September 2005
quotequote all
Normal. The aircon has to get it's power from somewhere, and using up to 6HP you're going to notice it.

joust

14,622 posts

282 months

Sunday 4th September 2005
quotequote all
You absolutly notice it on track - it's quite marked difference aircon on/off.

Remember that the Noble has very little (read bugger all ) sound proofing between the engine and cockpit. You'll therefore notice every little noise until your brain gets reprogrammed as to what's normal.

J

broad

314 posts

250 months

Sunday 4th September 2005
quotequote all
6 bhp - really is that all ??

It noticeably holds my car back - wouldn't have thought you could really feel 6 bhp difference, mine feels more like 30 or so. Anyone else?

Graham

ThatPhilBrettGuy

11,810 posts

263 months

Sunday 4th September 2005
quotequote all
Remember that you generally notice it when you're going along at a steady speed. That meens you'll be using, say, 20-40bhp to maintain that speed. 6BHP is a large percentage compared with that.

Al D

Original Poster:

159 posts

295 months

Sunday 4th September 2005
quotequote all
Yep, that all seems to make sense! I'll add that to my TADTS list and forget it. Many thanks.

Mr Noble

6,538 posts

256 months

Sunday 4th September 2005
quotequote all
Mine does that too.

Either put up with it and be cool or leave aircon off and wear shorts!!

GN

lucozade

2,574 posts

302 months

Monday 5th September 2005
quotequote all
Mr Noble said:
Mine does that too.

Either put up with it and be cool or leave aircon off and wear shorts!!

GN


Can't wear shorts on a track day though.

obes

3,298 posts

267 months

Monday 5th September 2005
quotequote all
It might be worth getting the gas checked. If it's down it will be working harder to get the compression.

I had mine done recently and it's a revelation !
it used to take a few minutes to cool down but now it's pretty much ice cold in seconds !

>> Edited by obes on Monday 5th September 10:32