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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 > Loss 5 psi of boost after intercooler install



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      08-03-2010, 04:35 PM   #23
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I called Dinan, Turbonetics and they all said that they have no idea what the problem would be. Dinan said to try to measure boost at the hot side of the ic and see what the difference is in psi or swap ic... think im gonna swap ic first and see what ha[ppens.
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      08-03-2010, 04:40 PM   #24
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Try recalibrating your boost gauge, then try again and see if the boost is reading correctly.......

So when you WOT, your car feels stock, right? Or does your car feel the same, but it's just the boost reading is off?
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      08-03-2010, 06:39 PM   #25
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Thats what you get for keepin secrets from me LOL ..I would have helped you out JKnnnnn.. Holla at me..
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      08-03-2010, 07:00 PM   #26
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question, from my understanding you are running a Dinan tune and no Dinan tune hits 15psi unless it's some custom tune.. so how were you able to up the boost by 2psi?
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      08-03-2010, 07:03 PM   #27
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Quote:
Originally Posted by dlbrooks18 View Post
question, from my understanding you are running a Dinan tune and no Dinan tune hits 15psi unless it's some custom tune.. so how were you able to up the boost by 2psi?
Only way I think is if he stacked another tune like JB+ with his Dinan flash..

Last edited by cn555ic; 08-03-2010 at 07:09 PM..
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      08-03-2010, 07:09 PM   #28
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I also explained to him, he has a stock intake no charge pipe just a tune car needs to breathe more, Ive noticed a simular effect on mine after i demodded for service and left the intercooler on by itself. Then installed the intake and charge pipe back on and my boost reading became higher again for some reason. Not sure if this was because of the larger charge pipe than OEM pipe. Just thought this might be helpful.
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      08-04-2010, 09:57 AM   #29
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Quote:
Originally Posted by cstmx_ryder View Post
Try recalibrating your boost gauge, then try again and see if the boost is reading correctly.......

So when you WOT, your car feels stock, right? Or does your car feel the same, but it's just the boost reading is off?
I have the p3 boost guage, i tried recal but still got the same reading... When i wot the car is actuall less powerful than with 3/4 throttle, but it has always been like that.

Quote:
Originally Posted by dlbrooks18 View Post
question, from my understanding you are running a Dinan tune and no Dinan tune hits 15psi unless it's some custom tune.. so how were you able to up the boost by 2psi?
My Dinan tune hit 15 psi max it's set to 14.5psi i was guessing that it was just a boost spike.
Quote:
Originally Posted by cn555ic View Post
Only way I think is if he stacked another tune like JB+ with his Dinan flash..
I do have the stack but without it i would be at 9psi with the tune which kinda bugs me out....
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      08-04-2010, 01:49 PM   #30
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Turbonetics said that its the charge pipe... I ordered it now lets see what happens wish me luck..........
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      08-04-2010, 11:48 PM   #31
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Quote:
Originally Posted by M335i Oreo Package View Post
Turbonetics said that its the charge pipe... I ordered it now lets see what happens wish me luck..........
Little broad, how did they come to that conclusion?

99% of me says that is not AT ALL your problem.

Last edited by Jeff@TopGearSolutions; 08-05-2010 at 02:00 PM..
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      08-05-2010, 08:45 AM   #32
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how much of a performance difference does an aftermarket intercooler provide over the stock one? Is it worth the headache?
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      08-05-2010, 10:12 AM   #33
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Quote:
Originally Posted by M335i Oreo Package View Post
Turbonetics said that its the charge pipe... I ordered it now lets see what happens wish me luck..........
It might be that, if it is a current leak point, in which case you get lucky. But I do not believe charge pipe will be the problem. Even a restricted charge pipe will register the boost being provided, granted it may not flow as much volume. You might have some pinholes somewhere, not letting you get to higher boost. My 2 cents.
Good luck, look forward to hearing the fix.

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      08-05-2010, 11:33 AM   #34
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Quote:
Originally Posted by Bavarian E92 View Post
how much of a performance difference does an aftermarket intercooler provide over the stock one? Is it worth the headache?
There's no head ache involved when doing it, this guy just did something wrong and broke something in the process. You can always bring it to a local shop who knows what they're doing.
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      08-06-2010, 12:34 PM   #35
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Quote:
Originally Posted by JPSlick View Post
Little broad, how did they come to that conclusion?

99% of me says that is not AT ALL your problem.
very true in my opinion. they said that the pipe that they provided with the intercooler for the cold side is what the problem is. I used the stock one cuz of an unfortunate mishap.
we can only wait and see.

Quote:
Originally Posted by Bavarian E92 View Post
how much of a performance difference does an aftermarket intercooler provide over the stock one? Is it worth the headache?
Ah hell yea unless your going with meth which i will not be...

Quote:
Originally Posted by happy4nk8er View Post
It might be that, if it is a current leak point, in which case you get lucky. But I do not believe charge pipe will be the problem. Even a restricted charge pipe will register the boost being provided, granted it may not flow as much volume. You might have some pinholes somewhere, not letting you get to higher boost. My 2 cents.
Good luck, look forward to hearing the fix.

Happy
hopefully i will keep you guys posted

Quote:
Originally Posted by tvieira24 View Post
There's no head ache involved when doing it, this guy just did something wrong and broke something in the process. You can always bring it to a local shop who knows what they're doing.
I didnt break anything, you would have to be a total novice not to be able to change an intercooler. u disconnect the hot side and the cold side then re-install in the same order. and if you need help you
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      02-02-2011, 10:10 PM   #36
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How did this go?? I just installed the xo2 knock off, used and I am missing my boost target by 1 psi. I tried the cold side pipe that came with it, and the stocker and the pipe that came with it seems to work better. It looks like someone hacked off the end of this pipe as there is no bead. Car is kinda laggy but running cooler.
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      02-03-2011, 09:26 AM   #37
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Quote:
Originally Posted by kjrulz View Post
get out of there...it's gonna BLOW!!!!
LoL. That's messed up, you're going to give the guy a heart-attack man.
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      02-03-2011, 09:48 AM   #38
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Quote:
Originally Posted by M3 Eater View Post
How did this go?? I just installed the xo2 knock off, used and I am missing my boost target by 1 psi. I tried the cold side pipe that came with it, and the stocker and the pipe that came with it seems to work better. It looks like someone hacked off the end of this pipe as there is no bead. Car is kinda laggy but running cooler.
When I installed my HPF intercooler I saw as much as 1psi~ lower from what I normally saw with the OEM intercooler so I would say its normal, but 5 psi off there is a MAJOR leak the OP is having...My bet would be the intercooler piping that is leaking....Even though people say its been double checked and triple checked, there is something that was overlooked for sure
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      02-03-2011, 09:58 AM   #39
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OP I am a bit confused reading your posts. Please be specific, what flash/piggy are you using and what IC are you using ?

Sorry if this is a repeat.
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      02-03-2011, 10:04 AM   #40
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Yeah defiantly check for leaks
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      02-03-2011, 10:29 AM   #41
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Looks like OP posted, solved his issue, and never posted the fix.
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      02-03-2011, 05:14 PM   #42
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I notice that this fmic should have less boost loss than stock

I hear a whistling noise coming from under the hood, driver side as well as jb4 target 1 psi higher than the boost that I reach. I was expecting
The opposite. I have rechecked
All connections and plan to go over the charge pipe next. Reseal the diverted valves insides. I have an injen intake that should be here today so I'll go over all of that again. Would I hear a whistling if the unit itself had a leak? There is also a bit of oil that is coming from the coupler. I let the unit sit sideways for a day and caught a bunch of oil before the install but I was thinking of putting some gasoline in it to clean it out but that wouldn't cause the whistling. Charge pipe is brand new and has 2 meth bungs. I will reseal them as well but charge pipe, as is worked leak free prior to install.
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      02-03-2011, 06:38 PM   #43
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Maybe when installing the charge pipe he released the pipe on the driver side was not connected. I higher doubt the diverter valve went bad while doing the install. 5 psi is a ton of boost and I would highly recommend doing a boost leak test by pressurizing the system when the car is off.

Thanks,

Michael
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      02-03-2011, 07:08 PM   #44
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same thing happened to me take cover off u will see oil where the leak is...tighten and go..
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