How to - Logging boost in HPT Scanner 3.x

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Mar 24, 2016 | 09:32 AM

#11

Atomic

I have a gauge for that

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From: Huntsville, AL

Something simple has to be going on then, it certainly works. Are you using the 2bar map sensor in the equation?

Mar 24, 2016 | 09:44 AM

#12

madmann26

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From: Somewhere north of 285, south of 985.

Quote:

Originally Posted by Atomic

Are you using the 2bar map sensor in the equation?

Yes. It doesn't work.

Mar 24, 2016 | 10:13 AM

#13

03sierraslt

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Quote:

Originally Posted by Atomic

A better way would be to just subtract atmospheric pressure from your MAP sensor. I know for a fact the 99-07 gas trucks dont have a baro sensor (just a MAP), not sure about the diesels. If the baro value defaults to 14.6, which is sea level, it will only be accurate if you are at sea level. At 6000ft altitude ambient pressure is around 12psi.

The MAP sensors read absolute pressure anyway, so 10psi of boost will read 24.6psi on the gauge. If you know your ambient pressure, just subtract ambient pressure the MAP sensor.

I didn't think they had a baro either, I've always done it the way your speaking of also. Here the baro works out to 96-97 kpa