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Default N55 PURE Inlet Pipe Tested - 09-22-2016, 06:15 PM

Hey guys,

This week we had the opportunity to get some before and after PURE inlet pipe results. It seems the stock inlet pipe causes restriction above 400whp. This customer's PURE Stg2 car was capped around ~410whp. Only thing is it didn't have a PURE HiFlow inlet pipe. So we added one and were surprised to find it unleashed a lot of power! It made a ~40whp gain at the same boost pressures, and enabled us to later crank up the boost and hit 500whp.

We normally recommend the inlet for all PURE Stg2 customers. We will now consider them required. Available for E and F series N55.

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Default 09-22-2016, 06:18 PM

So what about right at 400whp? Should I buy one? Stock turbo.


Mike Levy
2017 X3 xDrive35i
2000 F150 Lightning
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Pure Turbos Pure Turbos is offline
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Default 09-22-2016, 06:26 PM

Quote:
Originally Posted by Mike_L
So what about right at 400whp? Should I buy one? Stock turbo.
We didn't test stock turbo. The PURE Stg2 car made more power with the inlet at even lower boost levels, 16-17psi. Yes, we suggest you buy one.
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Default 09-22-2016, 07:07 PM

Quote:
Originally Posted by Mike_L
So what about right at 400whp? Should I buy one? Stock turbo.
I did not see any change with the inlet in my logs with the stock turbo. I think since the stage 1 and 2 have bigger openings for the impeller you will see a result over the stock inlet fitting the stock turbo.


2011 E92 335i Auto
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66
Sold

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | JB4 ISO | N20 TMAP | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | BMS Methanol Injection |
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Default 09-22-2016, 07:13 PM

Huge difference, very impressive!
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Pure Turbos Pure Turbos is offline
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Default 09-22-2016, 07:30 PM

Quote:
Originally Posted by Bimmer_Boost
I did not see any change with the inlet in my logs with the stock turbo. I think since the stage 1 and 2 have bigger openings for the impeller you will see a result over the stock inlet fitting the stock turbo.
We didn't see any change in the logs either. Just power to the ground!
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Default 09-22-2016, 07:37 PM

Quote:
Originally Posted by Pure Turbos
We didn't see any change in the logs either. Just power to the ground!
We'll see. I just ordered it. I'll hit the dyno afterwards to find out.


Mike Levy
2017 X3 xDrive35i
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rwalker rwalker is offline
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Default 09-22-2016, 07:52 PM

I can vouch for spooling gains with Pure's inlet and the stock turbo. I had to dial back Duty Bias from 1500-5000 RPM because I was overboosting once I installed the Pure Inlet.

I'm FBO, and I run 100oct on map7. I also have a map6 that follows map7 with less taper up top.


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nickshih nickshih is offline
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Default 09-22-2016, 09:06 PM

hi Pure

will you have inlet pipe for F10 535i ?

the difference is huge on your dyno result .

Last edited by nickshih; 09-22-2016 at 09:24 PM..
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Default 09-22-2016, 10:30 PM

When I first had my stage2 turbo in March 2015 there was no inlet pipe on F series. Nor was there a DV upgrade. I was able to run +- 20-21 psi on just 98 or E20 mix and meth. Doing 100-200 kph in 7.2-7.3. But going faster was not possible. Then I got the inlet pipe and at same settings could do 6.7-6.8 100-200. This shows how much of a restriction the stock inlet is.

The inlet upgrade is a must for stage2 turbo.


F21 M140i - 100-200: 6.95
Audi TTRS - 100-200: 4.47 60-130: 5.16
F80 M3 - 100-200: 4.45, 60-130: 5.1
F20 M135i (sold) - 100-200: 6.26 , 60-130: 7.4
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Default 09-22-2016, 11:25 PM

"135/335 only, does not fit 535" Welp, I'm out. I hate that I prefer 4dr + space...seems like most of the N55 tuner items get made for the 3/4 series.


2011 535i M-Sport - MHD Stage 2+ BEF w/ JB4 (logging), xHP Stage 3, BMS Intake, FMIC, ER Chargepipe, RM Motors catted d/p, Megan Racing Supremo Exhaust
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nickshih nickshih is offline
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Default 09-23-2016, 12:08 AM

Quote:
Originally Posted by neejay
"135/335 only, does not fit 535" Welp, I'm out. I hate that I prefer 4dr + space...seems like most of the N55 tuner items get made for the 3/4 series.

I already put pure stage2 turbo into my 2011 F10 535i.

It is amazing by this upgrade . i suggest that you can try it .

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Default 09-23-2016, 05:08 AM

Quote:
Originally Posted by neejay
I hate that I prefer 4dr + space...seems like most of the N55 tuner items get made for the 3/4 series.
Not an excuse. My little 335GT has more interior space than your 5. It may look stupid, but it's got the biggest interior short of the LWB 7.


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Weehe Weehe is offline
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Default 09-23-2016, 06:04 AM

I have an inlet waiting to go in on my stock turbo. I was thinking of making an insert to make the lip of the stock turbo a smoother transition. Just need to find plastic to make it out of. These results make me think it will help a stock turbo too.
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Default 09-23-2016, 07:45 AM

I will be dyno-ing my EWG car in late Oct to re-fettle map 6 on stock turbo once I install Wagner FMIC, ER charge ***** and Pure inlet pipe......


F20 M135i EB AT with options - what a hoot !
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Default 09-23-2016, 02:40 PM

If you are running high boost on the oem EWG turbo I'd definitely recommend the Pure hi flow inlet. I seen a nice reduction in PWN at the same boost levels pre and post inlet.

Now that I'm running 20/21 psi peak and holding on to much more boost up the Rev range, the inlet has definitely helped me achieve that.

Get it done people!


M135i 8AT / JB4 + EWG Harness / N20 TMAP / VRSF 5" HD FMIC / Fuel-It TBI / Fuel-It STG2 LPFP / Pure High Flow Inlet / FTP Charge & Boost ***** / Richter ***** / Backbox delete / E50 Fuel / ngk 5992s / BBS CH-R's / KW V3 Coilovers / M4 LCA's / GP Front Splitter & Side Blades.
100-200kph: 7.8s
1/4 mile: 11.9s @ 120mph
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rwalker rwalker is offline
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Default 09-23-2016, 02:43 PM

DB90, can you share your map6 targets and Duty Bias?


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Default 09-23-2016, 04:07 PM

Quote:
Originally Posted by Pure Turbos
We didn't see any change in the logs either. Just power to the ground!
Quote:
Originally Posted by DB90
If you are running high boost on the oem EWG turbo I'd definitely recommend the Pure hi flow inlet. I seen a nice reduction in PWN at the same boost levels pre and post inlet.

Now that I'm running 20/21 psi peak and holding on to much more boost up the Rev range, the inlet has definitely helped me achieve that.

Get it done people!
I was targeting 20 psi before and after the inlet on the stock turbo and saw no change in quarter miles times or my logs. I think it is great if some people are seeing results on the stock turbo and I agree this should be required for the stage 2 turbo. I am just trying to set realistic expectations for future buyers of just the inlet. You may or may not see a difference.

As Pure has shown and Darkiedm4 has said, you will see the difference with the stage 2.

I looked around for almost a month trying to find any documented results on the stock turbo with the inlet before picking mine up. I knew I would be buying the stage 2 so if it did not show any gains the investment would not be a waste. In my research I saw that Pure said they purchased a dyno and would dyno the results at some point. If any gains were shown with the stock turbo I am sure sales would go up.

Keep in mind this is for the E series PWG turbo.


2011 E92 335i Auto
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66
Sold

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | JB4 ISO | N20 TMAP | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | BMS Methanol Injection |
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DB90 DB90 is offline
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Default 09-23-2016, 10:37 PM

Quote:
Originally Posted by rwalker
DB90, can you share your map6 targets and Duty Bias?
I can't find my log/support thread on my phone but I know you've commented and seen the DB settings etc.


Quote:
Originally Posted by Bimmer_Boost
I was targeting 20 psi before and after the inlet on the stock turbo and saw no change in quarter miles times or my logs. I think it is great if some people are seeing results on the stock turbo and I agree this should be required for the stage 2 turbo. I am just trying to set realistic expectations for future buyers of just the inlet. You may or may not see a difference.

As Pure has shown and Darkiedm4 has said, you will see the difference with the stage 2.

I looked around for almost a month trying to find any documented results on the stock turbo with the inlet before picking mine up. I knew I would be buying the stage 2 so if it did not show any gains the investment would not be a waste. In my research I saw that Pure said they purchased a dyno and would dyno the results at some point. If any gains were shown with the stock turbo I am sure sales would go up.

Keep in mind this is for the E series PWG turbo.
Yup for sure, I have no experience with the E series PWG but the f series EWG turbo flows much better from what I have seen I've basically got a pure stage 1 boost curve now with the stock EWG turbo. My vbox times also match very closely to Peters (darkiedm4) car when he was on pure stage 1 to add even more evidence.

Unfortunately I won't be removing the inlet just to see what difference going back to the stock inlet will do.


M135i 8AT / JB4 + EWG Harness / N20 TMAP / VRSF 5" HD FMIC / Fuel-It TBI / Fuel-It STG2 LPFP / Pure High Flow Inlet / FTP Charge & Boost ***** / Richter ***** / Backbox delete / E50 Fuel / ngk 5992s / BBS CH-R's / KW V3 Coilovers / M4 LCA's / GP Front Splitter & Side Blades.
100-200kph: 7.8s
1/4 mile: 11.9s @ 120mph
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Default 09-24-2016, 10:13 AM

@ Pure - don't suppose you fancy taking a look at the E N55 hotside charge pipe to see if there's any magic you can work there too?


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JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s (0.020")
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Default 09-24-2016, 02:58 PM

Can I ask a stupid question? How's the install of this on an xDrive car? I was just looking at Dinans turbo instructions and they drop the steering rack before they remove the inlet. Is that necessary? If I gotta do all that I may have consider a Stage 2 since I gotta tear everything apart anyway.


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Default 09-24-2016, 08:26 PM

Quote:
Originally Posted by Mike_L
Can I ask a stupid question? How's the install of this on an xDrive car? I was just looking at Dinans turbo instructions and they drop the steering rack before they remove the inlet. Is that necessary? If I gotta do all that I may have consider a Stage 2 since I gotta tear everything apart anyway.
Some people drop a motor mount or pull the engine. My shop just pulled my engine out to install the stage 2 turbo.


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Peter @ Pure Peter @ Pure is offline
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Default 09-25-2016, 03:19 AM

Quote:
Originally Posted by Mike_L
Can I ask a stupid question? How's the install of this on an xDrive car? I was just looking at Dinans turbo instructions and they drop the steering rack before they remove the inlet. Is that necessary? If I gotta do all that I may have consider a Stage 2 since I gotta tear everything apart anyway.
I installed the inlet pipe from top of engine. This is doable on X-Drive too.


F21 M140i - 100-200: 6.95
Audi TTRS - 100-200: 4.47 60-130: 5.16
F80 M3 - 100-200: 4.45, 60-130: 5.1
F20 M135i (sold) - 100-200: 6.26 , 60-130: 7.4
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rwalker rwalker is offline
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Default 09-26-2016, 01:25 PM

Quote:
Originally Posted by darkiedm4
I installed the inlet pipe from top of engine. This is doable on X-Drive too.
It's not doable from the top on an M235i because of this:
http://www.realoem.com/bmw/enUS/show...diagId=17_0907


The M135i looks like this:
http://www.realoem.com/bmw/enUS/show...diagId=17_0654


There's an extra oil-water heat exchanger (number 26 in first pic) that blocks access to the inlet, so you can only see the retaining nut from below. This is the same bugger that makes installation of the EWG wires a bloody knuckles affair.

The 335iGT looks like it has the same setup as the M135i...


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Default 09-26-2016, 01:46 PM

Quote:
Originally Posted by rwalker
It's not doable from the top on an M235i because of this:
http://www.realoem.com/bmw/enUS/show...diagId=17_0907


The M135i looks like this:
http://www.realoem.com/bmw/enUS/show...diagId=17_0654


There's an extra oil-water heat exchanger (number 26 in first pic) that blocks access to the inlet, so you can only see the retaining nut from below. This is the same bugger that makes installation of the EWG wires a bloody knuckles affair.

The 335iGT looks like it has the same setup as the M135i...
Is it possible to swap radiator cores to a larger aftermarket one? I noticed oil temps getting a bit too high with pure stage 2 on the track, and on my m2 temps look ok with the stock turbo and stock boost, but I don't know if it can take more boost or a larger turbo.


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