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Old 10-08-2011, 05:41 AM   #22 (permalink)
Arragonis
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Quote:
Originally Posted by suspectnumber961 View Post
Someone has claimed that with a Ford Focus...removing the tube going to the front of the hood (fresh air) and allowing air to directly go into the bottom of the filter box resulted in increased mpg. Less restriction and warmer air.

I'll eventually try this...but won't like the noise when it's punched....the throttle that is.
I'm trying this with my Aygo at the moment by blocking the front nostrils which (theory tells me) feeds cold air to the intake. The intake is on the left of the box on top of the engine :



EDIT - Apologies is some people got an email of nonsense, I got the image link wrong.

This has made no difference to the intake temps so far though because this is heated anyway by the fact it sits on top of the warm engine. A guy I link to in my thread measured temps with a CAI and found that made no difference either because of the heated manifold effect.

So I have a warm intake anyway

On some of my older cars they had a water heated inlet manifold too.
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