In Chamber Testing

[vex]

If I had to guess the pressure sensors are directly bolted in to the combustion chamber via a spark plug hole as I doubt he's using MEMS. Temperature of the combustion chamber could be taken almost directly by placing a temp sensor on the housing immediately outside of the combustion housing (ie in the coolant flow). This would allow the modeling of the temperature fairly easily, though would be rather troublesome to do.

If what I said is true then I wonder how the pressure transducers affect your readings.

[RETed]

Originally Posted by vex

If I had to guess the pressure sensors are directly bolted in to the combustion chamber via a spark plug hole as I doubt he's using MEMS.

You'd think this would be an automatic, but this presents one problem...
This will almost always affect the spark ignition due to changing the location of the spark (plug).
It might be a minor thing, but this might throw the data off just enough...


-Ted

[Silver86]

wish i could see the pictures at work...

[vex]

Originally Posted by RETed

You'd think this would be an automatic, but this presents one problem...
This will almost always affect the spark ignition due to changing the location of the spark (plug).
It might be a minor thing, but this might throw the data off just enough...


-Ted

My thoughts exactly. IT's a pity we can't have pressure transducers directly on the faces of the apex seals or combustion tub.