ac cold feed idea
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Joined: Apr 2008
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From: Brisbane, Australia
No, you will not more power gain from the negligable drop in inlet temp than the A/C compressor will draw from the engine.
The Air con is designed to reduce the cabin temperature with a relatively small amount of flow through it. The engine will draw stacks of air flow through it, at 6000rpm a 2.0 ltr will consume 6 cubic metres of air per minute at 15 psi boost, at 22 psi it will consume 9 cubic metres of air.The cabin of an impreza is probably less than 3 m3.
Best way to get the power up efficiently is to get a good front mount i/c, something like the APS D/R 725. These are awesomely efficient, check out Frayz's my02 thread, he's using the APS FMIC and has figures to show how good it is.
The Air con is designed to reduce the cabin temperature with a relatively small amount of flow through it. The engine will draw stacks of air flow through it, at 6000rpm a 2.0 ltr will consume 6 cubic metres of air per minute at 15 psi boost, at 22 psi it will consume 9 cubic metres of air.The cabin of an impreza is probably less than 3 m3.
Best way to get the power up efficiently is to get a good front mount i/c, something like the APS D/R 725. These are awesomely efficient, check out Frayz's my02 thread, he's using the APS FMIC and has figures to show how good it is.
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