Quote:
Originally Posted by 4M
Just seems near impossible to measure and there's so many places the air can go without a hose to contain/direct it. No engineer by any means, but if air is a gas and gas expands to fill the container it's put in, where there is no container (hose) I'm hard pressed to think much air could be directed at the brakes.
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The factory duct setup on most BMW's until fairly recently and many other cars is this less-than-perfect but better-than-nothing method. Sure you'd rather dunk your 400 degree pizza in ice water to get it cooled off faster, but putting a slice on a plate and letting it sit for a few minutes works too. Still better than switching the oven off and leaving it in there