Combustion Meter

[CS]

Im 99% sure that some one has attempted this or made one. I just wanted to make one of these so i could measure the pressure (force) of the explosion. But since it is so quick i thought you could use a flow vavle so all the pressure wouldnt leave and the meter would stay up. Then you would have a ball vavle to replace the pressure. Heres a picture to explain it.
Blue= Pressure Meter
Green= Brass Tee
Pink= Flow Valve
Red= Ball Vavle
If it would work i could just hook it up to a end cap then hook it up to my freinds cannons to see how powerful they gun is.

[spudshot]

yeah, most people use them on their hybrids to record max pressure, and the flow valve is called a check valve, you'd want a spring check valve, not a swing one taht is used for water