Flowbench made from vacuum cleaners…

Energy & Sustainability
Flowbench made from vacuum cleaners…

Img413 39I asked Terry about the Flowbench he made, here’s what he said – “My flowbench started because I wanted to modify my car’s engine by porting the heads. I don’t know how familiar you are with engines, but “Porting the head” means modify the cylinder head so that more air will flow thru them and into the cylinder. Horsepower is directly proportional to airflow, i.e. 10% more air equals 10% more power. But I knew that just making the ports larger doesn’t mean more for airflow.”

Img413 41
I had used a flowbench in college and knew how they worked and how to calculate airflow from them, so I stopped porting and built this flowbench. A flowbench uses vacuum motors to create a differential pressure across a cylinder head (or whatever you want to measure the flow of) and an orifice (a hole) of know flow. By measuring the pressure drop across the cylinder head as a percentage of the know orifice you can calculate the flow thru the cylinder head. To do this all you need are vacuum motors, which I took out of used vacuum cleaners I got from the thrift shop. Some sheet metal orifices, which I used shells of a washer and dryer I had, because I had taken the motors out to make my planer and disk sanders and hadn’t gotten rid of them yet. Manometers to measure the pressure change. These too are easy to make with wood and plastic tubing. And then a wooden bench to hold it all. I built my first one for $120 and am still using it three years later. Link.

3 thoughts on “Flowbench made from vacuum cleaners…

  1. haveblue says:

    neet project. too bad he is charging for the plans ($30) and has a pretty weak description of it.

  2. Shop Vacuum Motors | Top Vacuum Cleaners says:

    […] Flowbench made from vacuum cleaners… – To do this all you need are vacuum motors, which I took out of used vacuum cleaners I got from the thrift shop. Some sheet metal orifices, which I used shells of a washer and dryer I had, because I had taken the motors out to make my planer and disk … […]

  3. I Need A Vacuum Cleaner | Canister Vacuum Cleaner says:

    […] Flowbench made from vacuum cleaners… – To do this all you need are vacuum motors, which I took out of used vacuum cleaners I got from the thrift shop. Some sheet metal orifices, which I used shells of a washer and dryer I had, because I had taken the motors out to make my planer and disk … […]

Comments are closed.

Discuss this article with the rest of the community on our Discord server!
Tagged

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone

ADVERTISEMENT

Ready to dive into the realm of hands-on innovation? This collection serves as your passport to an exhilarating journey of cutting-edge tinkering and technological marvels, encompassing 15 indispensable books tailored for budding creators.

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).

FEEDBACK