Using a flow bench

[gijoe985]

I was reading another article and the poster talked about using the flow bench to see where turbulence is being created. How does that work? I always thought you only got numbers off the flow bench? is there a way to visually see where air is getting held up?

 

[tqmx1]

When you have port turblance your ears are your #1 tool once you here the air braking away from the wall it's a sound you will never miss.

 

[allwheelTSI]

The Flow bench is'nt gonna tell you where it is directly but you can tell by porting a little and then looking at your numbers.

 

[SBR Joe]

Here's a thread i did back in the day when i was playing with a flowbench and a 6 bolt head. Not much talk about turbulence but there is numbers. You can hear the turbulence in the head, you just keep porting and cleaning imperfections up and it goes away along with flow numbers going through the roof.

http://www.dsmtuners.com/forums/cyl...75-4g63-cylinder-head-flow-bench-results.html

 

[92awddsm]

They also make probe attachments so you can probe the port and look for low and high depression areas. This is a better, more accurate way of finding turbulence than to listen, and guess port. No matter how good your ears are, you will not be able to pinpoint and fix the turbulence without guessing.

 

[tqmx1]

^^^ A1 to that. The port volisity (sp) should be very close to the same on the roof/floor and walls of the port.