Omni 4bar map sensor Plug and Play
Jan 26, 2009, 11:53 AM
#35
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Join Date: Nov 2006
Location: Union City, Ca
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Omni Power MAP sensor
I've already tested these out using the AEM EMS and they work great. I haven't had time to play with them using the stock ECU yet. Hopefully in the next week or so i'll get some time to test it out.
Jan 27, 2009, 03:17 PM
#37
Omni Power makes these sensors up to 7 bar i think. If there is interest im pretty sure they would offer a 5 bar version. I just really hope this picks up and mrfred uses these sensors for his boost control patches in the future. We can finally have a alternative to the JDM Map sensor.
Jan 28, 2009, 01:32 PM
#43
The reading is more sensitive to resolution the ADC then the accuracy of the sensor as most pressure transducers are very accurate.
An 8-bit ADC with a 4bar MAP sensor has a resolution of ~0.01568 bar (or 0.2275 PSI).
A 3 bar has a resolution of ~0.1177 bar (or 0.1706PSI).
That's assuming the sensor uses the full scale of the ADC, which it usually doesn't and actual resolution is usually even lower.
This is a pretty signifigant detail when using a MAP based system as your resolution goes to crap, the fueling becomes very unstable.
An 8-bit ADC with a 4bar MAP sensor has a resolution of ~0.01568 bar (or 0.2275 PSI).
A 3 bar has a resolution of ~0.1177 bar (or 0.1706PSI).
That's assuming the sensor uses the full scale of the ADC, which it usually doesn't and actual resolution is usually even lower.
This is a pretty signifigant detail when using a MAP based system as your resolution goes to crap, the fueling becomes very unstable.