Calling you Engineer types: Intake screens
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,312
Likes: 2
From: Lake Havasu City AZ
Calling you Engineer types: Intake screens
Lets talk intakes and air vents. We have 4 or 5 intake mfgs that claim great HP gains from there parts and some show dyno numbers to prove it. First if your filter is in the stock location and you don't have intake screens, your taking in lots of hot air for combustion especially if your drag racing and sitting in the staging lanes. My question is: With a screen, at some speed the screen becomes blocked due to the erradic air flow thru the screen. Would it be better to just remove the stock cover and not install a screen at all? Can anyone calculate at what speed the screen actually becomes "solid?
:crazy: MikeV
:crazy: MikeV
Drifting
Joined: Jun 2000
Posts: 1,848
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From: Corpus Christi, TX
Re: Calling you Engineer types: Intake screens (MikeV)
The screen doesn't actually become 'solid', but the pressure will build up as the speed increases. As long as the engine is turning, it is sucking in air and will take its air from this high pressure region. If the engine were to stop then the screen would become 'solid'.
It is this increase in pressure that many of the manufacturers try to claim is responsible for increases in horsepower.
An engine is an air/fuel pump. The more air/fuel you can get inside of it the more explosive power the engine can harness during the burn. Turbos and superchargers do this by actually compressing the air to higher than atmospheric pressures.
I'm sure these intakes work (many have tried them and documented the increases) but I think it is mainly due to the stock air box being very restrictive and taking in hot under hood air.
Matt
It is this increase in pressure that many of the manufacturers try to claim is responsible for increases in horsepower.
An engine is an air/fuel pump. The more air/fuel you can get inside of it the more explosive power the engine can harness during the burn. Turbos and superchargers do this by actually compressing the air to higher than atmospheric pressures.
I'm sure these intakes work (many have tried them and documented the increases) but I think it is mainly due to the stock air box being very restrictive and taking in hot under hood air.
Matt
Le Mans Master
Joined: Mar 1999
Posts: 6,744
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From: delmont pa
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Re: Calling you Engineer types: Intake screens (MJM)
i have run temp tests at the stock air box location at full throttle speeds and there is less than 5 degrees difference with the outside temp shown on the A/C display. i even find dead bugs on the K&N filter in my cut stock airbox so cold outside air get to the stock airbox somehow. :chevy
