A flowbench or air flow bench is a tool to measure the air flow capabilities of anything that s required to do this.
Homemade flow bench.
Start with a reading on the manometer with the plate completely blocked off for a zero flow depression test.
I m with oj on this one.
We had a nice superflow bench at epa and while it was cool and all it really is just a big shop vac and an incline manometer which you can make easily.
With high tech electronic sensors and a patented state of the art air flow metering element effective flow rate measurements can now be made with nothing more than an average shop vac for an air source.
Home made flow bench worth it.
While using a shop vacuum to move air through the flow bench the fp1 processor estimates the flow data to 28 wc test pressure in real time as the flow test is being performed.
This micro flow bench is the most basic easiest to build flow bench using the flow performance kit fp2 0bs.
The flow bench provides air flow through a component.
Typically the pressure drop across the component is held constant 28 inches of water or about 1 psi is a common standard pressure for cylinder heads and the air flow is measured.
Establishing the numbers step 1.
It is and has been for decades an invaluable tool to any one interested in increasing the performance of combustion engines.
This flow bench uses a shop vacuum for estimated flow data.
Or use a magnehelic as oj mentioned.
This flow bench will use blower motors scavenged from household vacuum cleaners to generate the airflow necessary for testing.
Note that all of the vacuum motors used in construction are recycled so the total cost may vary depending on what one is able to obtain second hand.
Make sure your bench is sealed so no leakage takes place except through the test piece.
The diy flow bench is a basic system to measure and display volumetric air flow.
Open the 5 cfm orifice.