boost problems...again
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boost problems...again
<a href="http://homepages.nyu.edu/~jod204/45degreemorning.xls">Excel file for 5 2nd or 3rd gear pulls- Right click, save as</a>
So. last night at around 55-60 degrees, i was pulling 13.15psi or about 1910mbar PEAK boost.(requested was 1920) Today i hooked it up again...it was about 45-50degrees this morning and i peaked at 12.9 or about 1900mBar (requeseted was 1920mBar)
being that requeseted is pretty much matched to actual boost, i'd rule out any problems with the turbo system....
what confuses me though is why am i only getting 13psi...the only conclusion i can think of is the engine management software realizes it's cooler out, thus reducing boost to get the same amount of power- i could be wrong...but that's my only logical conclusion....unless of course, my APR chip just isn't working right....
can anyone help!?!?
oh- and all these were measured logged using VAG_Com
So. last night at around 55-60 degrees, i was pulling 13.15psi or about 1910mbar PEAK boost.(requested was 1920) Today i hooked it up again...it was about 45-50degrees this morning and i peaked at 12.9 or about 1900mBar (requeseted was 1920mBar)
being that requeseted is pretty much matched to actual boost, i'd rule out any problems with the turbo system....
what confuses me though is why am i only getting 13psi...the only conclusion i can think of is the engine management software realizes it's cooler out, thus reducing boost to get the same amount of power- i could be wrong...but that's my only logical conclusion....unless of course, my APR chip just isn't working right....
can anyone help!?!?
oh- and all these were measured logged using VAG_Com
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emailed them...no reply as of yet. i assumed i'd be hitting 15psi
cause that's what most people report on the boards- then again it's possible that a reading taken with boost guage is different than one taken from intake.
regardless- 1bar=14.5psi.......so i'd be expecting that.
regardless- 1bar=14.5psi.......so i'd be expecting that.
AudiWorld Super User
Joined: Nov 2000
Posts: 9,996
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From: Miami
A difference of .25 psi is miniscule.....chalk it up to the ambient temp. change. Don't sweat it :)
Your APR chip is working, and your logical conclusion about the affect of ambient temps. is correct. Good luck
Andy
Andy
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