Map pressure drop after 6500rpm

[mladjan]

Hi guys,

Attached is log file for high compression k20 setup, with stock throttle body and k&n typhon kit (now is changed to injen cai, but log is few months ago).
I would like to know, what can be the cause of drop of map pressure?
As you can see after 6500 rpm until 8500 rpm ecu is not using 10th column, only 8th and 9th:
https://cl.ly/0B3c2K3B2O3o

[chukhchukh]

I have the same problem with you. Hope for help,please.

[JackSVM]

Can you post a datalog with this happening?

[mladjan]

Yes, I have two logs attached. Take a look at WOT around 7-8.5k rpm

autoput log.kdl

autoput 2 - 8.kdl

[fonzeka]

It's not dropping that much, but there is probably some intake restrictions.
Try using a bigger intake pipe and throttle body.
You could also insert a new load index between column 8 and 9 to get a bit better resolution on your tuning.
But make sure you enable boost tables first, click on Options>Show boost tables.

[chukhchukh]

This is my datalog for the problem of pressure drop above 7000rpm , thank you