Does having air-con 'on' affect performance?
#31
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there was a rumour a while back that a bloke in australia had connected his aircon to the inlet and it did make a difference in performance but weather it incresed his power by more than it took i dont know
#32
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You wont notice it if you have a higher power output engine over say a 65bhp engine which will show a noticable effect.
In the hot weather, your car will show a drop off in power to start with (probably missed by a few people ) so its slower anyway, if you actually watch when you turn on the a/c unit, the revs should adjust slightly upwards to compensate, thus the reason you have lower fuel economy with it on.
Tony
In the hot weather, your car will show a drop off in power to start with (probably missed by a few people ) so its slower anyway, if you actually watch when you turn on the a/c unit, the revs should adjust slightly upwards to compensate, thus the reason you have lower fuel economy with it on.
Tony
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I'm far from an expert on air con but if I read the original post about the inlet, the way I see it was the guy is feeding the cold air into the inlet therefore cooling the charge and as even I am aware the colder the charge the denser the air the more power? I appreciate that there is a power loss to run the air con and whether the power gained would compensate or not I doubt it,
#34
Brit in Japan - point taken, but I still reckon pulling 30hp through a rubber band makes for a very very stiff compressor!
Wonder how much the alternator takes for basic systems and then with the headlamps on? There will be a sum there somewhere where the wattage equals XX horsepower versus alternator efficiency. Anyone?
D
Wonder how much the alternator takes for basic systems and then with the headlamps on? There will be a sum there somewhere where the wattage equals XX horsepower versus alternator efficiency. Anyone?
D
#35
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Originally Posted by Diesel
Brit in Japan - point taken, but I still reckon pulling 30hp through a rubber band makes for a very very stiff compressor!
Wonder how much the alternator takes for basic systems and then with the headlamps on? There will be a sum there somewhere where the wattage equals XX horsepower versus alternator efficiency. Anyone?
D
Wonder how much the alternator takes for basic systems and then with the headlamps on? There will be a sum there somewhere where the wattage equals XX horsepower versus alternator efficiency. Anyone?
D
To most people it is hardly noticeable, but to those of us who obsess over a 5hp gain with an aftermarket air filter , the power the aircon uses more significant relatively speaking!
#36
Originally Posted by Saxo Boy
Thats impossible surely - how can a machine be more than 100% efficient?
Not suggesting that feeding your air-con output into the inlet will do the same though, although I'm sure I remember seeing mention of a system on a modified American pickup truck that did something a bit similar - using the aircon to chill either water or air (water I think) that could then be dumped in to lower the charge temperature and recharged once you were off boost again - like a re-chargeable nitrous system.
Last edited by AvalancheS8; 13 February 2004 at 01:28 PM.
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