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Topic: Boost help (Read 22411 times)
judeisnotobscure
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Posts: 379
Re: Boost help
« Reply #30 on: October 19, 2011, 10:06:25 AM »
the ldrxn table in this file is simply set a little high up top... taper it more up top and req will line up better with actual.
I would also recomend messing with kflbts, note what load you are at in the rpm band when tuning kflbts, as this plays a big role.
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I have a b5 s4
but i just want to dance.
wannabeS4
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Re: Boost help
« Reply #31 on: October 19, 2011, 10:46:12 AM »
I have it tapering to around 13 psi but it is still requesting 16 psi for some reason.
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nyet
Administrator
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Karma: +607/-168
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Posts: 12255
Re: Boost help
« Reply #32 on: October 19, 2011, 11:02:30 AM »
Quote from: wannabeS4 on October 19, 2011, 10:46:12 AM
I have it tapering to around 13 psi but it is still requesting 16 psi for some reason.
There is no table that says '13 psi'
You clearly have too much requested load.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool
Please do not ask me for tunes. I'm here to help people make their own.
Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
lulu2003
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Posts: 242
Re: Boost help
« Reply #33 on: April 15, 2012, 04:25:07 AM »
any updates?!
but I take this thread for a common question:
at the end of the rpm axis around 6000 he does not get the desired boost, despite 95% duty cylce.
I am looking for some common problems with the same nature.
reasons:
- boost leak between compressor and intake.
- too weak WG actuators (which opens by exaust gas pressure)
- N75 Stuff
- too small turbos.
are there any other possible reasons for that?
how do you determine that the turbos (or compressor wheels) are at their limits? what are the limits? overrevs and bad efficiency -> hot IAT.
I would like to see some meanings based on either theory an physics but also experience.
thanks in advance.
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