For exhaust you can put a short piece of pipe on the head and connect that to the bench. pressure in the cylinder or vacuum in the pipe are pretty much the something flow wise. Then you bolt the head to a cylinder and add a quick clay stack to the case end of the cylinder and you're flowing exhaust. Mine is really not designed well to convert either....but its possible.
Do you have a brand or model for anything for it that I could google?
The unit as it is will certainly tell you if you are making the flow better, you just won't have numbers with units. To get units you need to calibrate, to calibrate you need something of known flow, that something is an orifice plate. I have no idea how much it costs to buy a set, but you can make them easily enough and the flow comes from here:
https://www.efunda.com/formulae/fluids/ ... wmeter.cfmI cal at 0, 67, 131, 171 @10" which is about 0, 115, 226, 295 @28"
I'd have to check the dimensions I used..they were round numbers IIRC and I sized my stuff around the max flow I expected from the heads....I was shooting for 160 and got 156. (@10")
I put the plate on and measure the flow, the manometer reading goes into excel, excel gives me values for an the equation of the line that goes through the points and I plug the equation values into a table calculator so I had a calibrated table I can look at to convert my manometer readings to actual flow values. When I'm on the bench I work directly in manometer readings, more is better and once the development is done I know exactly what readings I'm looking for to match the other ports to the 1st.....so the cal table just tells me what to plug into dynomation and lets me make a pretty graph to post on the forum
I do a cal every day with the plates or with the head I'm matching. When you do it this way you really don't need to worry about temp or baro, it washes out in the cal.