Am I the only one that notices this?
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From: Bonney Lake/Ellensburg, Washington- WCBF '04, '05, '06, '07 Survivor-
Originally Posted by BillBoost37
Originally Posted by driverjohn2005
I don't care about the intake as much as wtf is up with the turbo looking indentation on the top of the engine 
If the "tuned Intake" one of the major differences between the S3 and the 3.9 V6 (Other than the .1 liters bigger)
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From: Texarkana, Texas
Originally Posted by J Wikoff
If you have a certain length and diameter of an intake runner (on an NA engine), the speed attained by the air on the intake stroke can help pull in more air by using the air'* momentum. Done properly, you can acheive slight positive pressure right before the intake valve closes. It will work best at one RPM, so any fixed runner length is a compromise.
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One marketing person probably asked to get rid of it. One engineer said he needed it for his intake runner length. Another marketer said it looks cool so lets make it a cutout through the engine cover.
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From: Bonney Lake/Ellensburg, Washington- WCBF '04, '05, '06, '07 Survivor-
Originally Posted by J Wikoff
If you have a certain length and diameter of an intake runner (on an NA engine), the speed attained by the air on the intake stroke can help pull in more air by using the air'* momentum. Done properly, you can acheive slight positive pressure right before the intake valve closes. It will work best at one RPM, so any fixed runner length is a compromise.
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From: Rochester, NY (college)
Originally Posted by J Wikoff
If you have a certain length and diameter of an intake runner (on an NA engine), the speed attained by the air on the intake stroke can help pull in more air by using the air'* momentum. Done properly, you can acheive slight positive pressure right before the intake valve closes. It will work best at one RPM, so any fixed runner length is a compromise.
95nasta knows a lot about the tuned /variable port stuff.
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From: Enfield, CT
Originally Posted by driverjohn2005
Well, it'* obvious it'* not the cover, otherwise it would be plastic as well.
A turbo would be part of the exhaust stream and too hot to be mounted under a plastic shield as seen in the pic.
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From: Rochester, NY (college)
Originally Posted by BillBoost37
Originally Posted by driverjohn2005
Well, it'* obvious it'* not the cover, otherwise it would be plastic as well.
A turbo would be part of the exhaust stream and too hot to be mounted under a plastic shield as seen in the pic.
