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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Timing corrections on low boost



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      06-11-2022, 04:13 AM   #23
Saif2018
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Quote:
Originally Posted by Empire087 View Post
so the one i posted before was as good as .022, and heres one of .024
https://datazap.me/u/empire087/91-oc...13-15-20-21-24
Have you asked your tuner for what might be causing the corrections?

New Index 12 injectors, Coils new, plugs new, tried various gaps no difference, cylinder timing only going upto 3 degrees, IAT's fine, tried octane booster no difference.

This is a strange one, Could it be false knock?

Last edited by Saif2018; 06-11-2022 at 04:19 AM..
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      06-11-2022, 08:34 PM   #24
Empire087
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Quote:
Originally Posted by Saif2018 View Post
Have you asked your tuner for what might be causing the corrections?

New Index 12 injectors, Coils new, plugs new, tried various gaps no difference, cylinder timing only going upto 3 degrees, IAT's fine, tried octane booster no difference.

This is a strange one, Could it be false knock?
My tuner seems to be stumped, from what i can gather in talking with them Mostly why i started searching other places. Yeah its wierd, i can set boost from 14-20# with identical results. Not sure what would cause false knock with these motors. Went with a single mass flywheel and spec stage 3 clutch to avoid this in the first place.
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      06-13-2022, 10:07 PM   #25
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gonna try practically an e15 mix tomorrow or so. See if the corrections go away.
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