MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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was in my mates golf the other day.. jus cruising with the Air-con on.. and my mate thought of a idea 
what if he could put a pipe of one of the Air-con outlets goin into the engine bay, either directly into the airbox or as a cold air feed??
i told him to shut up and dont be so stupid! but would happen if he did do this? would their be any gains of any kind?
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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Interesting idea. Would give more of a benefit on a turbo'd car.
I assume it wouldn't be able to flow nearly enough air, else that sort of system would be used on turbo's.
Interesting thought though.
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corsafreak
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Registered: 1st Dec 03
Location: --- NorthEast ---2.0 16v powered
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any benifit gained due to colder denser air would be cancelled out by the drag of the aircon compressor i'm afraid.
notice how your mpg drops when using aircon, or the engine labours more at tickover with the aircon running.
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sfxer
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Registered: 23rd Aug 00
Location: devon, england
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aircon saps power from the engine, but theoretically if it was set up right you could regain the lost power! waste of time tho really.
maybe a seperate aircon system running off a battery?
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5door_jon
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Registered: 23rd Apr 04
Location: tyldesley manchester
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buy one of them mini 12v fridges and rig that in
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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You don't get anything for nothing!
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sfxer
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Registered: 23rd Aug 00
Location: devon, england
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you do sometimes Ian, but not when it comes to engine power!
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ed
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Registered: 10th Sep 03
User status: Offline
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It's a similar idea to the electric supercharger that runs off of the alternator... Just won't work, unless you can do the physically impossible and make everything runn 100% effecient
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Joff
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Registered: 17th Oct 00
Location: Cambridgeshire
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Just get a can of perpetual motion and spray it all into your air intake. That'll be good for a few bhp - Revs did a test on it a couple of months ago!!
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Fraser Young
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Registered: 26th Dec 02
Location: Dundee City Drives: 58 Impreza WRX
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quote:
Originally posted by Joff
Just get a can of perpetual motion and spray it all into your air intake. That'll be good for a few bhp - Revs did a test on it a couple of months ago!!
pmsl... my fav. quote of the last month...
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ed
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Registered: 10th Sep 03
User status: Offline
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"In this house we will obay the laws of physics" 
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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lol i was going to add something along those lines joff until i read yours The fact that the air-con is sapping engine power in the first place means that you cannot regain or increase power by tracking through the mainfold. Would have to be 100% efficient, and there is no such thing in the real world the most efficient objects are step-down transformers used on national power grids. these are like 95% efficient. the %% is lost through radiation, sound, heat etc etc
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