Tuesday, 20 November 2012

4G63 Intake Manifold test by Reef


Below is all the data collected on the flow bench. The percentage under each
runner's cfm rating is the amount of difference from the highest flowing runner on that manifold.
Remember, that this percentage is the amount of fuel that would need to be reduced at that
cylinder in order to keep it from running richer than the cylinders getting the higher air flow numbers.
This works both ways as well. If the cylinders that are receiving the lower air flow amounts were
running at the optimal air fuel ratio, than cylinders receiving the higher airflow would be running lean.
I also included some notes or comments we wrote down as we were testing each manifold. All of the
tests were done at 28" water.



Credits to irocgsx@gmail.com


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