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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 > post-dp install: wastegate rattly and turbo spool



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      07-31-2009, 06:51 PM   #1
jadeddjay
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post-dp install: wastegate rattly and turbo spool

just wanted to get some opinions/experiences. i just installed my dps and now the wastegates seem to be alot more rattly and the turbo spool is MUCH more pronounced... much more than i expected

any ideas? i thought i was pretty careful and got everything tight, 3hr drive and no codes
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      07-31-2009, 07:20 PM   #2
scalbert
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How much more so? I could see the turbo spool being more pronouced but more wastegate rattling? Were the wastegates rattling before?
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      07-31-2009, 07:30 PM   #3
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it used to rattle when it was cold. i havent spent enough time to pin down exactly how it is now but it was definitely rattly after my roadtrip when i parked and gave the throttle a quick rev up to 2500rpm

however i did find this..

Quote:
Originally Posted by ar design View Post


Any catless downpipe will make the wastegate rattle more pronounced, if its there. Try Shivs newest maps and let me know how it works out!

Enjoy!
so what up with the rattling? if it starts doing damage will i get a code or something? i assume my procede will warn me if my turbos are overspooling or something
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      07-31-2009, 07:32 PM   #4
theGhost
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By chance, do you have any piggyback or a flash to your ecu? Most likely its the maps to your device.
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      07-31-2009, 07:36 PM   #5
scalbert
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Quote:
Originally Posted by jadeddjay View Post
it used to rattle when it was cold. i havent spent enough time to pin down exactly how it is now but it was definitely rattly after my roadtrip when i parked and gave the throttle a quick rev up to 2500rpm

so what up with the rattling? if it starts doing damage will i get a code or something? i assume my procede will warn me if my turbos are overspooling or something
The rattling appears to be mostly an annoyance. If too much duty cycle is called for, the PROcede will put you in Valet mode.

But that said, if they were rattling before, yes, they will be more pronouced with DPs.

I may be traveling through Jackson, MS (to McComb, MS and Kentwood, LA) here soon and could possibly take a look if needed.
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      07-31-2009, 07:43 PM   #6
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wow that would be awesome. only if you have time. when will you be doing?

it would be nice to meet the famous scalbert haha

if you have time i can take you out to lunch or something

Quote:
Originally Posted by theGhost View Post
By chance, do you have any piggyback or a flash to your ecu? Most likely its the maps to your device.
procede rev2 w/canbus and newest stage 2 maps and dci... ar design dps, rennart catback
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      07-31-2009, 07:45 PM   #7
Mike@N54Tuning.com
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Noticed the same thing with my car after DP install. Wound up with a new turbo

Mike
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      07-31-2009, 08:05 PM   #8
scalbert
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Quote:
Originally Posted by jadeddjay View Post
wow that would be awesome. only if you have time. when will you be doing?
It should be a week from Monday (10th) when I hit the road. Will probably be coming into Jackson (I-20 to I-55) around 2 - 3 PM Central so lunch will not be needed. But can certainly plan something. It is a travel day so I have no commitments on time.

Drop me a PM late next week and we can coordinate.
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