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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 you think stage 1 fbo would keep the turbos happy longer?



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      12-05-2020, 05:02 AM   #1
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Do you think stage 1 fbo would keep the turbos happy longer?

I'm about to throw my downpipes in and my intercooler (already have dci on the car) I'm stage 1 on mhd currently and was going to keep it on, and have stage 2 ready whenever I feel like having more fun. Do you think being fbo stage 1 will keep the turbos happier? Looking for longevity mainly.
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      12-05-2020, 08:53 AM   #2
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Inlets will do more to keep them happy than anything else besides leaving it stock. Inlets will lower your WGDC meaning your turbos arent working as hard and last longer
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      12-05-2020, 10:57 AM   #3
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So will the lower boost targets of a stage 1 map versus a stage 2+.

My stage 1+ E30 map keeps wgdc down in the 50% range, whereas the Stage 2+ E30 map can dip into 70% duty cycles.
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      12-05-2020, 06:36 PM   #4
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No catalytic converter helps as there will be lot less heat.
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      12-05-2020, 06:38 PM   #5
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Originally Posted by feuer View Post
No catalytic converter helps as there will be lot less heat.
Have you or anyone noticed oil temps lowering after going catless?
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      12-05-2020, 06:40 PM   #6
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Quote:
Originally Posted by Ilma View Post
So will the lower boost targets of a stage 1 map versus a stage 2+.

My stage 1+ E30 map keeps wgdc down in the 50% range, whereas the Stage 2+ E30 map can dip into 70% duty cycles.
That's what I'm looking for mainly to not stress components hard unless I flash to stage 2 when I want to have more fun or go to meets
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      12-05-2020, 06:53 PM   #7
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Quote:
Originally Posted by Ghostn54 View Post
Have you or anyone noticed oil temps lowering after going catless?
No I have not and I was referring to temperature difference the turbo housing would experience with and without catalytic converters
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      12-05-2020, 07:38 PM   #8
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Quote:
Originally Posted by Ilma View Post
So will the lower boost targets of a stage 1 map versus a stage 2+.

My stage 1+ E30 map keeps wgdc down in the 50% range, whereas the Stage 2+ E30 map can dip into 70% duty cycles.
Obviously running lower boost will reduce WGDC however allowing the turbos to breath easier with inlets will effectively have the same effect without having to run at a lower boost level. My WGDC on stage2+ with inlets at 20psi is roughly 40-50%
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      12-05-2020, 09:47 PM   #9
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Quote:
Originally Posted by Smgs1992 View Post
Obviously running lower boost will reduce WGDC however allowing the turbos to breath easier with inlets will effectively have the same effect without having to run at a lower boost level. My WGDC on stage2+ with inlets at 20psi is roughly 40-50%
I don't care.

I was answering the OP's original question about different stage tunes.....not interested in getting into a debate with you whatsoever.

He acknowledged my response as what he wanted to know.....so direct your comments to him.

Last edited by Ilma; 12-05-2020 at 09:57 PM..
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      12-06-2020, 01:32 AM   #10
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Quote:
Originally Posted by Ilma View Post
I don't care.

I was answering the OP's original question about different stage tunes.....not interested in getting into a debate with you whatsoever.

He acknowledged my response as what he wanted to know.....so direct your comments to him.
Geez someone woke up on the wrong side of the bed this morning
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      12-06-2020, 01:51 AM   #11
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Geez someone woke up on the wrong side of the bed this morning
lol, yeah.
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      12-06-2020, 08:27 AM   #12
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Quote:
Originally Posted by Ilma View Post
I don't care.

I was answering the OP's original question about different stage tunes.....not interested in getting into a debate with you whatsoever.

He acknowledged my response as what he wanted to know.....so direct your comments to him.
Lmao butthurt much? Offering the OP a better solution to lower WGDC while making more power should be more helpful and relevant than a blank response. “Oh yeah turn down boost”
You quoted WGDC figures so it makes sense to include your quote to compare what the figures are vs the addition of inlets. Why make the OP scroll around vs including it in one reply?
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      12-07-2020, 12:18 AM   #13
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Quote:
Originally Posted by Smgs1992 View Post
Lmao butthurt much? Offering the OP a better solution to lower WGDC while making more power should be more helpful and relevant than a blank response. “Oh yeah turn down boost”
You quoted WGDC figures so it makes sense to include your quote to compare what the figures are vs the addition of inlets. Why make the OP scroll around vs including it in one reply?
Have you got any WGDC figures/logs of Inlets on the same map vs without inlets on the same map?
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      12-07-2020, 01:14 AM   #14
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Quote:
Originally Posted by Smgs1992 View Post
Obviously running lower boost will reduce WGDC however allowing the turbos to breath easier with inlets will effectively have the same effect without having to run at a lower boost level. My WGDC on stage2+ with inlets at 20psi is roughly 40-50%
Wow that’s a huge difference. Are you on OTS map or custom?
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      12-07-2020, 09:26 AM   #15
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Quote:
Originally Posted by Saif2018 View Post
Have you got any WGDC figures/logs of Inlets on the same map vs without inlets on the same map?
I dont as i had inlets installed when i replaced my turbos. Which was before i even tuned the car.

Currently on OTS 93octane
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      12-07-2020, 10:59 AM   #16
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No rhyme or reason really...I've been on an E50 tune for ~60k miles with no issue (no noise, rattle, lag, etc.).

I wait until oil comes up to temp before getting into boost and let the car cool down sufficiently after the fact.

TLDR: don't beat the car like an idiot and you should be fine. If they still decide to die after only being pushed to modest power levels, it is what it is.
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      12-08-2020, 01:54 AM   #17
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Quote:
Originally Posted by Smgs1992 View Post
I dont as i had inlets installed when i replaced my turbos. Which was before i even tuned the car.

Currently on OTS 93octane
No worries, eventually gonna install inlets anyway, I read something in the region of 5-10% WGDC but around 10-20% or more is a huge difference.
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      12-08-2020, 08:56 AM   #18
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Quote:
Originally Posted by Ghostn54 View Post
I'm about to throw my downpipes in and my intercooler (already have dci on the car) I'm stage 1 on mhd currently and was going to keep it on, and have stage 2 ready whenever I feel like having more fun. Do you think being fbo stage 1 will keep the turbos happier? Looking for longevity mainly.
As long as you have the needed mods, stage 2 is as reliable as stock or stage 1
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      12-08-2020, 12:02 PM   #19
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Quote:
Originally Posted by Saif2018 View Post
Have you got any WGDC figures/logs of Inlets on the same map vs without inlets on the same map?
I've found 5% - 10% lower WGDC to be pretty accurate. Here are a couple logs from before and after I added inlets:

BEFORE:

https://datazap.me/u/stewbets/431whp...0&data=3-21-29

AFTER:

https://datazap.me/u/stewbets/445-wh...0&data=3-22-30
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      12-14-2020, 04:11 AM   #20
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Quote:
Originally Posted by stewbets View Post
Quote:
Originally Posted by Saif2018 View Post
Have you got any WGDC figures/logs of Inlets on the same map vs without inlets on the same map?
I've found 5% - 10% lower WGDC to be pretty accurate. Here are a couple logs from before and after I added inlets:

BEFORE:

https://datazap.me/u/stewbets/431whp...8;data=3-21-29

AFTER:

https://datazap.me/u/stewbets/445-wh...8;data=3-22-30
What was your setup to make that power?
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      12-14-2020, 09:30 AM   #21
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Quote:
Originally Posted by FCobra94 View Post
No rhyme or reason really...I've been on an E50 tune for ~60k miles with no issue (no noise, rattle, lag, etc.).

I wait until oil comes up to temp before getting into boost and let the car cool down sufficiently after the fact.

TLDR: don't beat the car like an idiot and you should be fine. If they still decide to die after only being pushed to modest power levels, it is what it is.
I second this.....

I've been on an E40 tune for a while now with stock turbos. There have been a few times where I've seen the boost peak at 20psi or maybe a little more.

The key is keeping up with maintenance, knowing when something sounds "off", taking some logs so you know what's going on........and not flogging on it like you are intentionally trying to kill the motor
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      12-14-2020, 09:11 PM   #22
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Quote:
Originally Posted by Ghostn54 View Post
What was your setup to make that power?
Just basic bolt-ons, stage 2 pump, inlets and e50 fuel.
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