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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 > Too slow spooling stock turbo's ? Plz help (logs included)



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      07-11-2015, 01:13 AM   #1
Odan.be
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Too slow spooling stock turbo's ? Plz help (logs included)

Hey,

I am trying to solve this problem.
I think my stock turbo's are spooling to slow, and throttle response is "laggy" too.

Bmw laggy rattle fix should be removed because i am running a Stage II map from MHD flasher, wich overwrites thee Waste gate tables.

What could be the cause. ? when i see healty logs stock turbo's hit 15 ish psi around 2500 rpm.

i am thinking vacuum lines or a boost solenoid ?
Can a failing boost solenoid cause slow spooling ?
I am runnig a forge FMIC wich uses stock couplers and er charge pipe wich seem to bee seated quite fine? so I hope these connections are ok .

here is a log file :

http://datazap.me/u/odanbe/stage-2-r...8&zoom=248-368


Thx for your time !

Grtz
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