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      10-07-2016, 11:28 AM   #43
Richbot
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Drives: Jerez Black E90
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Quote:
Originally Posted by 4M View Post
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.
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
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