greggors84
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 posted on 8/2/07 at 02:03 PM |
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Range of MAP sensors?
Anyone know the range of an average MAP sensor? Wondering what I could use for my DIY flowbench.
Will they give readings from 1 bar?(atmospheric not boost)
What sort of vacuum will be seen in a normal petrol car manifold?
How accurate are they? I would imagine there wouldnt be much pressure difference in my flow bench. I guess I could use an orifice to up the vacuum but
want to avoid this to have the cleanest flow going into the ports.
Chris
The Magnificent 7!
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tks
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| posted on 8/2/07 at 02:54 PM |
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mhh
you only need 2 mountable parts
where in you fit the map sensor.
a engine sees negative pressure from 0,3bar to 0,8 on tickover saying that it will depend on allot of things...
peak pressures i don´t know..
the sensor will has an accurancy thats the same as what you could read.
you only need to do your measurements on a stable pressure and then measure the loss in pressure..
the formula will tell you that the lower pressure you do your measurements with the better you get a difference...
Tks
The above comments are always meant to be from the above persons perspective.
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sebastiaan
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| posted on 8/2/07 at 03:17 PM |
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On a N/A engine, 15-115 kPa or 15-105 kPa (absolute pressure!) is a normal range. If you use automotive sensors, they are probably more accurate then
your flowbench ;-)
I've experience with the GM ones (see: linky to sensor this
shows the 3 bar version, but older vuaxhalls should have this sensor in 1 bar version.) If I recall correctly these are 0Volt @11kPa and 20kPa/Volt
from there.
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