carburator dry flow bench Holley 500cfm testing - Car Racing Forums at Circle Track Magazine Circle Track

carburator dry flow bench Holley 500cfm testing

  
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carburator dry flow bench Holley 500cfm testing

 
Team53B Team53B
I watched NASCAR once | Posts: 1 | Joined: 12/08
Posted: 12/27/08
07:34 PM

My home made dry flow bench is simply a 5hsp shop vac powered thru a 1 inch id pipe that turns up 90 degrees thru a (too small) plenum right under the table top with a 1.69 inch hole (adjustable) to fit most carbs individual base throttle holes. The 1 inch runner pipe is totally controllable: off & all the way to suck all the water out if allowed and contains a home made pitot tube in to calculate air velocity thru its own Manometer. Question? to measure the bench flow should I be simply inserting my 1/4 inch (second vert manometer)tube into the side of this runner with the table top test hole open to the atmosphere and then read the Mnometer? Or should I cover the Table top hole except for the manometer tube and control my flow inches with the runner valve, then open the hole mount the carb and test mods  

 

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