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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 > Do the 335, need Turbo timers



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      05-02-2007, 06:41 PM   #1
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Do the 335, need Turbo timers

Just curious to see if the 335 need turbo timers, because i know that lot of people with turbo engines get that. Does the engine keep running after the ignition is turned off.
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      05-02-2007, 06:45 PM   #2
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No need for turbo timers! Do a search for more info on other threads about turbo timers.
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      05-03-2007, 01:00 PM   #3
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There is no need for a turbo timer in the 335i. If you sit in the car after you have parked and turned off the ignition you can hear a whirring noise. After a couple minutes you hear a clunk. That is the coolant pump continuing to pump coolant through the turbo bearing housings for a couple minutes, then the pump shuts off. This prevents the turbos from heat soaking and oil coking in the seals.
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      05-03-2007, 03:18 PM   #4
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Quote:
Originally Posted by merritt View Post
There is no need for a turbo timer in the 335i. If you sit in the car after you have parked and turned off the ignition you can hear a whirring noise. After a couple minutes you hear a clunk. That is the coolant pump continuing to pump coolant through the turbo bearing housings for a couple minutes, then the pump shuts off. This prevents the turbos from heat soaking and oil coking in the seals.
very good to know! I didn't know that...always wondered what that noise was.

I checked your site out...and don't get me wrong...it's not very common to see girls on a car forum, especially one that knows the inner workings of a high-performance cars.

by the way, i wouldn't be surprised if your friend, James Tate, knows my friend LJ Garcia...he's been in the import scene for a long time and my other friend Leon Casino.

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      05-03-2007, 04:51 PM   #5
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      05-03-2007, 04:54 PM   #6
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No u don't need one, it's built in...
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      05-03-2007, 06:44 PM   #7
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Quote:
Originally Posted by merritt View Post
This prevents the turbos from heat soaking and oil coking in the seals.
To a point. Personally, I wouldn't get one here, but I do in my RX-7. Continuing the coolant flow is one thing, but the oil sitting in the CHRA is not so there's still a chance it will.
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      05-04-2007, 09:46 PM   #8
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Thanks everyone. I was just curious b/c i'm still waiting for my car to arrive and all this reading about turbos made me think about it. Still got two more months to wait......It's killing me!!!!!
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      05-06-2007, 07:30 PM   #9
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good info. I just sit for 10-30 seconds depending on how long and hard I have been driving
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