Intake diameter
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From: springfield il
from what i know about physics, in general, the bigger the opening, the more air u can get into it, but the less momentum and speed that air will have going into the opening and vice versa
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From: Holt, MI & Lima, OH
Originally Posted by Sol
I always thought if you keep it kind of small, the air gets packed in more, causing a higher velocity.
/not a physics major
/not a physics major
Shawn
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The key to air intake on our cars isn't highest CFM, it'* laminar air flow. 3" is the same diameter of the entrance to the upper intake/Supercharger from the throttle body. 3" has been dyno proven to provide more power, because the air doesn't have turbulence added from going to a smaller diameter later on.
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From: Buffalo Grove, IL
I would agree with BonneMeMN, the best would be the same size as the TB. It is more laminar, and that .5 won't be a big difference for a simple CAI. If we had a FWI, or a real hood scoop, then that might be different, but as it stands, there is none.
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The throttle body opening, as well as the intake opening measures 2 3/4" to be exact. At the opening to the throttle body it is 3 1/4" ID (3 1/2" OD) and then there is a very gradual transition within the throttle body.
The key to reducing turbulence is smooth walls and smooth gradual transition.
3 1/2" is still best IMO for minimal pressure drop and while maximizing flow....the bigger the better and then a smooth transition down to the 3 1/2" OD connection to the throttle body.
The key to reducing turbulence is smooth walls and smooth gradual transition.
3 1/2" is still best IMO for minimal pressure drop and while maximizing flow....the bigger the better and then a smooth transition down to the 3 1/2" OD connection to the throttle body.
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Originally Posted by 2000SilverBullet
The throttle body opening, as well as the intake opening measures 2 3/4" to be exact. At the opening to the throttle body it is 3 1/4" ID (3 1/2" OD) and then there is a very gradual transition within the throttle body.
The key to reducing turbulence is smooth walls and smooth gradual transition.
3 1/2" is still best IMO for minimal pressure drop and while maximizing flow....the bigger the better and then a smooth transition down to the 3 1/2" OD connection to the throttle body.
The key to reducing turbulence is smooth walls and smooth gradual transition.
3 1/2" is still best IMO for minimal pressure drop and while maximizing flow....the bigger the better and then a smooth transition down to the 3 1/2" OD connection to the throttle body.
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The L36 is the same size.
ADTR tested different diameters, and had the best performance response from 3". I belive it was due to the more laminar flow. This is more critical if you run with no MAF screen.
ADTR tested different diameters, and had the best performance response from 3". I belive it was due to the more laminar flow. This is more critical if you run with no MAF screen.
