Originally Posted by
blah
So what you are saying to me is that if you're traveling 55 mph in an average commuter car (i.e. a civic), there's a stream of air going over the top of the hood at 55 mph and an equal stream of air going through the engine compartment under the hood also at 55 mph?
If the weather stripping in the front of the hood and rear of hood are gone and there is space for the air to travel then air will travel at a high rate of speed possibly like 55 mph but it doesn't have to be going the exact speed. It needs to have enough pressure to keep the air from on top of the hood from pushing air back into/ keeping air in the hood. This is getting so far off the topic though. This is about whether hood spacers work or not. Which they have been proven to.