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Lowon Lowon is offline
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Default 02-14-2017, 09:35 AM

Quote:
Originally Posted by SeanWRT
F series EWG.

My question has been really if inlet pipe makes DME run leaner if turbo does flow more with it at given boost.
No it shouldn't, it just allows there to be less of a bottle neck, if there is more air flow it will be accounted for by the maf. It's like breathing through a straw vs a snorkel, any varience should be compensated for by the O2 sensor or maf. Idle should still be the same though since the turbo still sucks the same volume of air just more freely. Under wot maybe it'll allow for more flow, but probably not much just frees up restriction.


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Default 02-14-2017, 09:59 AM

Nothing that the DME cannot compensate for if it does flow more on the stock turbo.


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Default 02-14-2017, 10:57 AM

Quote:
Originally Posted by Bimmer_Boost
Nothing that the DME cannot compensate for if it does flow more on the stock turbo.
+1
It's post maf too so there shouldn't be any weird roughness during idle.


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Default 02-14-2017, 11:25 AM

3 days ago i d/c my maf, using jb4 5.14 + mhd euro pump flash.
car idles BETTER than with the maf connected, it got rid of my random rough idle, and got rid of some weird rpm wobbles when coming to a stop.

no clue why, but it did.


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JETmn JETmn is offline
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Default 02-14-2017, 11:41 AM

Quote:
Originally Posted by ***sooba
3 days ago i d/c my maf, using jb4 5.14 + mhd euro pump flash.
car idles BETTER than with the maf connected, it got rid of my random rough idle, and got rid of some weird rpm wobbles when coming to a stop.

no clue why, but it did.
Are you EWG?

An inlet pipe can't make the car run lean if you are running the maf, it just pulls more air through the maf. Even with map it wouldn't as you would have more pressure at the manifold and it would account for the extra air.
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Default 02-14-2017, 11:46 AM

nothing to do with the inlet pipe
all of the wobbles and strange rpm happened before and after the inlet pipe.
only when i removed the MAF the engine started behaving smoother than ever.

i am E82 N55 PWG


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Weehe Weehe is offline
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Default 02-14-2017, 12:02 PM

If you have idle issues you probably have hardware issues. When running mafless I blew off my IC to CP coupler. Car still ran great, smooth idle, just no boost. Unplugging the MAF is just masking the problem.
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Default 02-14-2017, 12:20 PM

well, my car is a DCT
and since ever, it had rpm wobbly issues, maybe updating to the 98g0 through mhd solved this aswell, since my car has never had an ECU update since 10\2010


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Default 02-15-2017, 01:32 PM

Quote:
Originally Posted by SeanWRT
Question: will this inlet make air mixture slightly leaner, as turbo is supposed to flow better with it at any given boost? Or will pre *** o2 senser measure and adjust AFR so fuel trim is maintained?

I am going to use Pure inlet pipe on Dinan tune, which has a richer AFR target. I don't mind it's made a little bit leaner.
I can confirm, as expected, AFR is unaffected by hi flow inlet pipe. My logs show PWM has dropped hinting inlet side of turbo is doing less work to achieve the same boost target. I assume EGT's will be lower and my logs show timing advance is more stable.


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Ichiban Ichiban is offline
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Default 02-20-2017, 08:35 AM

how much for the inlet? I cannot seem to see the price on the pure site.
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Default 02-22-2017, 05:49 PM

Quote:
Originally Posted by 435TwinScroll
Im currently map 7....18psi max on my 2016 435i..

I have ER kaated ddpp , ER intercooler, ER chargepipe....


Would my car benefit from adding the inlet pipe ? Power wise ? Spool wise ?
There might be small gains I believe a member reported 5whp, it should free up some restriction and thus help the turbo spool quicker.


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Default 02-22-2017, 06:48 PM

Quote:
Originally Posted by 435TwinScroll
Im currently map 7....18psi max on my 2016 435i..

I have ER kaated ddpp , ER intercooler, ER chargepipe....


Would my car benefit from adding the inlet pipe ? Power wise ? Spool wise ?
IMO no. I saw zero difference when running 20 psi on the stock turbo.


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Default 02-22-2017, 11:39 PM

Quote:
Originally Posted by 435TwinScroll
Im currently map 7....18psi max on my 2016 435i..

I have ER kaated ddpp , ER intercooler, ER chargepipe....


Would my car benefit from adding the inlet pipe ? Power wise ? Spool wise ?
Based on my experience pre and post install running slightly less psi - yes and yes.


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Dirty3092 Dirty3092 is offline
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Default 02-25-2017, 12:10 AM

Does anyone know if they plan on making these for the F10 535i?


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Default 02-25-2017, 12:16 AM

Quote:
Originally Posted by Dirty3092
Does anyone know if they plan on making these for the F10 535i?
They said they didn't want to be in the inlet making business but did so out of necessity. If they haven't made one that fits it yet then they probably won't. I know they make an F series inlet but I don't know which ones it fits.


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Dirty3092 Dirty3092 is offline
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Default 02-25-2017, 12:19 AM

Quote:
Originally Posted by Bimmer_Boost
They said they didn't want to be in the inlet making business but did so out of necessity. If they haven't made one that fits it yet then they probably won't. I know they make an F series inlet but I don't know which ones it fits.
Damn thanks for the reply, it's been a major struggle trying to find parts for the 535i. I'm having a intercooler made and all the piping . Figured this would save my fab guy sometime when he goes to re make the intake.


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Default 02-25-2017, 04:32 AM

Quote:
Originally Posted by Dirty3092
It's been a major struggle trying to find parts for the 535i. I'm having a intercooler made and all the piping.
Why not just get a Wagner Tuning F1x 5 series intercooler?
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Dirty3092 Dirty3092 is offline
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Default 02-25-2017, 08:45 AM

Quote:
Originally Posted by bradsm87
Why not just get a Wagner Tuning F1x 5 series intercooler?
To me the wagner intercooler wasn't worth the price. for 1,000 dollars i can have a garret Bar and plate 600hp core with custom end tanks made and full intercooler piping. no more worrying about plastic intercooler *****. also the intake that runs around the motor will be replaced with just one from the turbo to behind the headlight.


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Default 02-25-2017, 10:56 AM

I'm sure you could reach out to Pure to purchase the CNC part that attaches to the turbo. Will make fabing up a pipe much easier. Didn't realize the F 5 series were different than F 1 and 3.
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Default 03-05-2017, 03:00 PM

So how hard is this to do on an X-Drive? Also is it worth the upgrade if I see myself planning on staying with stock turbos for the next year and a half or so?


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Default 04-17-2017, 07:00 PM

Quote:
Originally Posted by 963mw
So how hard is this to do on an X-Drive? Also is it worth the upgrade if I see myself planning on staying with stock turbos for the next year and a half or so?
For F-series EWG yes, for E series or F-series PWG doesn't seem worth it on stock turbos


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Default 10-04-2019, 10:29 AM

Hate to revive such an old post but...

im in the middle of doing this on my 2015 f30 335 auto xdrive.

I CANNOT get to the nut on the turbo at all, even from the bottom... Does anything else need to be removed in order to make it doable? Im lost. Pure wasnt any help, they sent me here

Thanks,


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Default 10-04-2019, 10:35 AM

2Addicts | BMW 2-Series forum - View Single Post - Turbo inlet pipe upgrade


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n55david n55david is offline
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Default 10-04-2019, 10:37 AM

right..

"loosen 10mm bolt that fastens inlet tube bracket to head"

Sure seems simple... Cept it doesnt tell you that you cant just do that. There isnt any way to get to it and do it without removing a bunch of stuff first, at least that I can see...


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rwalker rwalker is offline
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Default 10-04-2019, 10:41 AM

I recall it's super tight and frustrating, just keep wiggling...


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Last edited by rwalker; 10-04-2019 at 10:48 AM..
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