Intake airflow restriction?
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Intake airflow restriction? Is there a reliable way to check for air intake restrictions while datalogging without installing a vacuum gauge?
Would comparing the baro KPA(in HG) at the top of datamaster with the Map (HG) at WOT give you accurate data if it does; how much of a drop is normal/acceptable?
Here's a screenshot....
(code was fixed but not cleared...this was the check ride)
Would comparing the baro KPA(in HG) at the top of datamaster with the Map (HG) at WOT give you accurate data if it does; how much of a drop is normal/acceptable?
Here's a screenshot....
(code was fixed but not cleared...this was the check ride)
Key on engine off record MAP reading, do a WOT run the closer the MAP reading under WOT compared to key on engine off is what you want.
The further they are apart the more restriction.
The further they are apart the more restriction.
Yes I did and had a lengthy post on this board with the results.
https://ls1tech.com/forums/lt1-lt4-m...-diagnose.html
Shoebox said it best on how to measure.
https://ls1tech.com/forums/lt1-lt4-m...-diagnose.html
Shoebox said it best on how to measure.
Thread Starter
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Joined: Nov 2005
Posts: 520
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BLUFF
Went for another test ride, seems like the drop is 1.96" HG so is that bad or good at 6900+?
...here's a shot of engine off.
and engine at WOT
58 MM tb, cut lid with KN filter, stock ducting.
Mike
Went for another test ride, seems like the drop is 1.96" HG so is that bad or good at 6900+?
...here's a shot of engine off.
and engine at WOT
58 MM tb, cut lid with KN filter, stock ducting.
Mike
Last edited by aboatguy; Jun 26, 2010 at 09:47 PM.
