Hondata

Hi, just one question, is there a way I can match the reading in the MAP Sensor and in my Boost gauge, the problem is that my boost gauge is reading 9 psi of boost while the Map sensor only read 5 psi..

Is there a way to correct this??

Thanks in advance

No there is not. Is this a mechanical or electronic gauge?

its a mechanical gauge.

Where is the pressure source for the gauge?

Also : what elevation are you at?

from here:

<a href="http://s105.photobucket.com/albums/m207 ... G_0337.jpg" target="_blank"><img src="http://i105.photobucket.com/albums/m207 ... G_0337.jpg" border="0" alt="Photobucket"></a>

http://i105.photobucket.com/albums/m207 ... G_0337.jpg

And my elevation is 2240 meters (7350 ft) above sea level.

I can't see where you boost gauge is connected, but the difference is because of the way your boost gauge reads and your elevation.

The MAP has an absolute reference, so 5 psi is 5+14.7 = 19.7 psi absolute.

The boost gauge reads boost relative to atmospheric pressure, which is 78 kPa / 11.2 psi absolute. So at 19.7 psi absolute pressure, the boost gauge will read 19.7-11.2 = 8.5 psi relative, which is close to what you said it reads.

thnks for the explanation...

Just one more thing, so how much boost Iam actualy getting into the engine, 9.5 or 5?

Thanks ind advance.

19.7 psi absolute pressure, so 5 psi as sea level.

thank U for all the explanation and your time!