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Author Topic: Chris tuning thread. now running meth - overboost :(  (Read 62414 times)
phila_dot
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« Reply #75 on: July 31, 2014, 09:11:23 AM »

Am I the only one that swaps the axis on DIMX?

Swap it how?
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nyet
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« Reply #76 on: July 31, 2014, 09:18:30 AM »

That won't work very well.

I will over accumulate.

For some reason his setup requires a ton of WGDC. It actually looks reasonable to me...
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carsey
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« Reply #77 on: July 31, 2014, 09:27:49 AM »

Just a little overview of setup.

1.8T bored out 1mm (82mm JE 9.25:1 pistons)
Rods
Ported manifold
Standard turbo
Forge Actuator - yellow spring - about 10-12psi cracking pressure
Free flowing intercooler pipework with large core
3" downpipe into custom exhaust.



Duty seems pretty similar to my last setup but running me3.8.  log attached showing duty of that (only VCDS as all I had at the time)

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ddillenger
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« Reply #78 on: July 31, 2014, 09:48:02 AM »

Swap it how?

To view it.
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phila_dot
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« Reply #79 on: July 31, 2014, 09:52:55 AM »

For some reason his setup requires a ton of WGDC. It actually looks reasonable to me...

Same DC for all boost requests?

To view it.

I set all my tables up to my preference.
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nyet
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« Reply #80 on: July 31, 2014, 10:05:14 AM »

Same DC for all boost requests?

Ah. I was referring to in comparison to what he had before, which was a bunch of crazy dips in the last row (highest plsolr)

You are, of course, correct. He has way too much I for the lower plsolr areas.

My mistake, did not look closely.
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carsey
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« Reply #81 on: July 31, 2014, 10:13:18 AM »

What am I needing to pull back then?  not too clued up with all these PLSOLR abbreviations yet Tongue
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nyet
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« Reply #82 on: July 31, 2014, 10:18:37 AM »

Compare the shape of your IMAX to the stock one...

You say you don't know what plsolr is... what do you think the other axis of that table is?

Hint: do NOT alter a table unless you know what both axis are.
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carsey
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« Reply #83 on: July 31, 2014, 10:25:43 AM »

I knew that hPa was boost pressure, just wasnt exactly sure (without looking at the FR) what plsolr was.

I guess instead of altering each individual RPM column, I need to alter individual load sites instead, which is going to take a pretty long time I believe and a lot of testing.  What I tried to do was keep each RPM column the same duty, and make the whole chart linear and smooth.

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carsey
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« Reply #84 on: July 31, 2014, 10:41:33 AM »

This is what I have currently.

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carsey
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« Reply #85 on: August 03, 2014, 04:17:12 PM »

Going to give this one a try later on today, so hopefully it will add a touch more actual boost on spool up (not that I need it due to traction haha) and hopefully smooth out those nasty adaptions

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carsey
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« Reply #86 on: August 04, 2014, 05:06:14 AM »

Todays log.   See I now have  overboost from specified boost on spool.  WGDC% curve looks pretty smooth from what it has been.

Still getting those boost adaptions though.  Fine tuning this is getting a bit tricky haha
« Last Edit: August 04, 2014, 05:10:50 AM by carsey » Logged
nyet
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« Reply #87 on: August 04, 2014, 09:02:11 AM »

That actually looks really good.
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carsey
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« Reply #88 on: August 04, 2014, 10:03:13 AM »

Even though the PID is pulling back through those LDIMXA_* variables?

Hopefully going to sneak it onto a set of rollers tuesday/wednesday if i can find time so can see what its putting out.

Timing correction factors seems to have pulled themselves back a bit aswell.  -3 is my highest from 5000rpm.   0 before that so plenty scope for a touch more midrange timing.
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nyet
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« Reply #89 on: August 04, 2014, 10:51:15 AM »

Even though the PID is pulling back through those LDIMXA_* variables?

Considering your log, I have a tough time believing the PID is doing any adaptation, unless that is post adaptation.

Does it look like that on the first run after clearing codes?
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ME7.1 tuning guide
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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
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