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Rick · 07-14-07, 02:05 AM

One ofthe dilemas that has been hinted at but not fully addressed is the fact that it has been proven that the majority of the injested air comes from the outer edge of the velocity stack or carburetor mouth and not from directly above. The standard Weber stack with its "Sharp edge" promotes a shearing effect for the air being ingested, and reducing the diameter of the opening with the rubber rings or creating any sort of a "Dam" at the outer edge will cause the problem to be manifested.

Thank you Bill

This type of stack design will promote the better flow rates than the OEM stack before the screen is added. The ring that is at the outer circumfrence of the screen inhibits any benefit from the stacks superior design.

07-14-07, 02:05 AM	#75 (permalink)
Rick Rick A Tenth Join Date: Sep 2006 Posts: 105 Rep Power: 4	Re: individual Weber screens One ofthe dilemas that has been hinted at but not fully addressed is the fact that it has been proven that the majority of the injested air comes from the outer edge of the velocity stack or carburetor mouth and not from directly above. The standard Weber stack with its "Sharp edge" promotes a shearing effect for the air being ingested, and reducing the diameter of the opening with the rubber rings or creating any sort of a "Dam" at the outer edge will cause the problem to be manifested. Thank you Bill This type of stack design will promote the better flow rates than the OEM stack before the screen is added. The ring that is at the outer circumfrence of the screen inhibits any benefit from the stacks superior design. Last edited by Rick; 07-14-07 at 02:16 AM.