N55 Behind the Grill Intake DIY

musclesmarinara75 · 07-19-2021, 08:50 PM

Quote:

Originally Posted by BrowBMW

I did win, it was against a stinger. I swear I went out to grab a log and hit a challenger and a WRX STI who didn't want to play and then I passed this stinger that wanted to hit it. I had to back off in 3rd cause there was a mini in front of me. That's when I got this code.

Outta those 3 cars... the Kia is the one who wanted to play??

BimmerHausPerformance · 07-19-2021, 08:59 PM

Quote:

Originally Posted by musclesmarinara75

Quote:

Originally Posted by BrowBMW

I did win, it was against a stinger. I swear I went out to grab a log and hit a challenger and a WRX STI who didn't want to play and then I passed this stinger that wanted to hit it. I had to back off in 3rd cause there was a mini in front of me. That's when I got this code.

Outta those 3 cars... the Kia is the one who wanted to play??

You ever see a stinger get on it? It will beat a stock 535. It is the fastest car out of those three on the top end.

musclesmarinara75 · 07-19-2021, 09:02 PM

Quote:

Originally Posted by BrowBMW

You ever see a stinger get on it? It will beat a stock 535. It is the fastest car out of those three on the top end.

Just seen a few around... never seen anyone pushing one, heard the got some pep to em'... good thing I'm not stock.. would love to hit it with one of them

BimmerHausPerformance · 07-20-2021, 11:06 AM

4.4 0-60, 12.9 1/4 mile - not bad stock - but it's still a KIA.

95blkmax · 07-20-2021, 02:09 PM

Quote:

Originally Posted by BrowBMW

4.4 0-60, 12.9 1/4 mile - not bad stock - but it's still a KIA.

I actually test drove one a month ago. A 2021 facelifted/ updated Stinger GT. That mofo moves! And the interior is gorgeous. BMS has their JB4 to it and gets great power out of it. Do not underestimate them folks! No challenge for a tuned PS2 F10 but stock turbo could be fairly matched or even outgunned depending on mods

BimmerHausPerformance · 07-20-2021, 04:16 PM

Just got word from DS and he said that the codes I got are a GOOD SIGN. He said he can adjust things so that the CAI doesn't ram too much air into the cylinders (which is where this code is from) by adjusting the throttle plate (pulling it back) but what that means is on the top end he'll be able to get more boost out of things as long as I can get the fuel there... so things are looking up as far as the behind the grill intake being an actual viable upgrade and a product I might be able to get out there to the community. Here you can see that at about 3500 RPMS even though I had the pedal smashed it was starting to close the throttle plate because it was getting TOO MUCH AIR... all good things!

95blkmax · 07-21-2021, 08:19 AM

Quote:

Originally Posted by BrowBMW

Just got word from DS and he said that the codes I got are a GOOD SIGN. He said he can adjust things so that the CAI doesn't ram too much air into the cylinders (which is where this code is from) by adjusting the throttle plate (pulling it back) but what that means is on the top end he'll be able to get more boost out of things as long as I can get the fuel there... so things are looking up as far as the behind the grill intake being an actual viable upgrade and a product I might be able to get out there to the community. Here you can see that at about 3500 RPMS even though I had the pedal smashed it was starting to close the throttle plate because it was getting TOO MUCH AIR... all good things!

BAHAHAHA!!!!

Now that this has been proven to outflow the traditional intakes, this brings up another question/ issue. Would this setup REQUIRE a custom tune, OR can the DME keep it all under control?

I know it's different with your car being PS2 and pushing that much more air than a stock turbo. Perhaps another kit should be made for a stock turbo community member to test (if you don't have one locally, I volunteer as guinea pig!

)

$howtime456 · 07-21-2021, 07:06 PM

Quote:

Originally Posted by BrowBMW

Just got word from DS and he said that the codes I got are a GOOD SIGN. He said he can adjust things so that the CAI doesn't ram too much air into the cylinders (which is where this code is from) by adjusting the throttle plate (pulling it back) but what that means is on the top end he'll be able to get more boost out of things as long as I can get the fuel there... so things are looking up as far as the behind the grill intake being an actual viable upgrade and a product I might be able to get out there to the community. Here you can see that at about 3500 RPMS even though I had the pedal smashed it was starting to close the throttle plate because it was getting TOO MUCH AIR... all good things!

yea i hated throttle closures!!!

BimmerHausPerformance · 07-22-2021, 06:08 PM

Quote:

Originally Posted by 95blkmax

BAHAHAHA!!!!

Now that this has been proven to outflow the traditional intakes, this brings up another question/ issue. Would this setup REQUIRE a custom tune, OR can the DME keep it all under control?

I know it's different with your car being PS2 and pushing that much more air than a stock turbo. Perhaps another kit should be made for a stock turbo community member to test (if you don't have one locally, I volunteer as guinea pig!

)

I think we'll need someone to test it out with a stock turbo. It's possible with a stock turbo that it couldn't push more air than what the engine could handle...? only one way to find out...

95blkmax · 07-22-2021, 09:54 PM

Quote:

Originally Posted by BrowBMW

I think we'll need someone to test it out with a stock turbo. It's possible with a stock turbo that it couldn't push more air than what the engine could handle...? only one way to find out...

I'd buy a kit from you if you make an additional one, or shoot me that parts list and I can fab it up myself and get this testing under way

Unspec · 07-24-2021, 01:17 PM

I am now deathly curious as to how the MST intake measures against this custom one.

95blkmax · 07-24-2021, 01:57 PM

Quote:

Originally Posted by Unspec

I am now deathly curious as to how the MST intake measures against this custom one.

I still haven't seen independent dyno testing on it either. That's really what I'd want to see.

I'd be more than happy to do a before and after dyno on this intake setup once I can get some parts rolling in

Bmwdoubles_ · 07-26-2021, 10:49 AM

I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors.

- smoke test and cure all leaks
- check for unmetered air after maf
- ensure your TMAPs are in working order(air plausibility errors can be checked by swapping tmaps atmospheric with charge pipe)
- of course the tune itself
- custom wiring harness, gauge of wires is oem and voltage is correct

BimmerHausPerformance · 07-26-2021, 10:53 AM

Quote:

Originally Posted by Bmwdoubles_

I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors.

- smoke test and cure all leaks
- check for unmetered air after maf
- ensure your TMAPs are in working order(air plausibility errors can be choked by swapping tmaps atmospheric with charge pipe)
- of course the tune itself
- custom wiring harness, gauge of wires is oem and voltage is correct

Thanks! So far he hasn't suspected any of those issues but I need to pull the DP and set the waste gate to close at 7 " of hg. Then we can go at it again. He can't control the over boost at this point.

Bmwdoubles_ · 07-26-2021, 11:30 AM

Quote:

Originally Posted by BrowBMW

Quote:

Originally Posted by Bmwdoubles_

I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors.

- smoke test and cure all leaks
- check for unmetered air after maf
- ensure your TMAPs are in working order(air plausibility errors can be choked by swapping tmaps atmospheric with charge pipe)
- of course the tune itself
- custom wiring harness, gauge of wires is oem and voltage is correct

Thanks! So far he hasn't suspected any of those issues but I need to pull the DP and set the waste gate to close at 7 " of hg. Then we can go at it again. He can't control the over boost at this point.

Just put on my new actuator and we set it to close a little above 6 inHg. Mines working like a champ. Also if you're doing you DP change the DP gasket to avoid leaks.

https://www.fcpeuro.com/products/bmw...ng-18307553601

BimmerHausPerformance · 07-26-2021, 11:33 AM

Quote:

Originally Posted by Bmwdoubles_

Quote:

Originally Posted by BrowBMW

Quote:

Originally Posted by Bmwdoubles_

I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors.

- smoke test and cure all leaks
- check for unmetered air after maf
- ensure your TMAPs are in working order(air plausibility errors can be choked by swapping tmaps atmospheric with charge pipe)
- of course the tune itself
- custom wiring harness, gauge of wires is oem and voltage is correct

Thanks! So far he hasn't suspected any of those issues but I need to pull the DP and set the waste gate to close at 7 " of hg. Then we can go at it again. He can't control the over boost at this point.

Just put on my new actuator and we set it to close a little above 6 inHg

Interesting- I wonder what the logic is behind different settings. He said at 6.5 should be starting to close and should be sealed at 7. He had showtime set it to 9!

Bmwdoubles_ · 07-26-2021, 11:35 AM

Quote:

Originally Posted by BrowBMW

Quote:

Originally Posted by Bmwdoubles_

Quote:

Originally Posted by BrowBMW

Quote:

Originally Posted by Bmwdoubles_

I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors.

- smoke test and cure all leaks
- check for unmetered air after maf
- ensure your TMAPs are in working order(air plausibility errors can be choked by swapping tmaps atmospheric with charge pipe)
- of course the tune itself
- custom wiring harness, gauge of wires is oem and voltage is correct

Thanks! So far he hasn't suspected any of those issues but I need to pull the DP and set the waste gate to close at 7 " of hg. Then we can go at it again. He can't control the over boost at this point.

Just put on my new actuator and we set it to close a little above 6 inHg

Interesting- I wonder what the logic is behind different settings. He said at 6.5 should be starting to close and should be sealed at 7. He had showtime set it to 9!

Go with DS advice. I have the new Pure upgraded actuator but using an OTS tune right now. When I go back to DS the setting might change. For now go with DS.

$howtime456 · 07-27-2021, 05:58 PM

Quote:

Originally Posted by BrowBMW

Interesting- I wonder what the logic is behind different settings. He said at 6.5 should be starting to close and should be sealed at 7. He had showtime set it to 9!

I actually had mine set to 9. I used the gauge as a reference to see when the flap fully closes and Pure also recommeded me for 9 after adjustment.

John H. · 09-11-2021, 08:45 PM

Quote:

Originally Posted by BrowBMW

4.4 0-60, 12.9 1/4 mile - not bad stock - but it's still a KIA.

What was your trap speed?

E90angeleyes · 01-17-2022, 06:47 PM

Was this ever completed? Wasn't there some issue regarding running lean or something?

Just wondering if there has been an official final edit or something.

BimmerHausPerformance · 01-17-2022, 06:51 PM

We are still working on the final tune… just about done. I was able to hit 21lbs of boost at around 6k rpm with a wgdc of only 45-55%.

Once I am done with this round (pump gas tune) I'll be starting the e85 and meth tune. Shooting for 600whp.

BimmerHausPerformance · 01-18-2022, 03:25 PM

Here is a log I just pulled. I actually got to play with a unicorn when I went out to get this, v10 m6... it couldn't keep up lol. That was fun.

Anyway, DS hasn't yet opened up the WGDC on this to make it hit full boost up top, that'll be his next adjustment however this does give you some solid data as it relates to the intake. You'll also notice quite a bit of oscillation between 3500 and 5500 RPM's but none the less you can still see some #'s there, we are still smoothing that out in the tune.

There isn't much point in logging this high of RPM because to stay in the power band I'd be shifting at about 6200 or so, and the turbo starts to fall off up top but none the less here it is. 4th gear @ 7k rpms is like 140MPH so yea, no thanks.

Breakdown of a 4th gear pull (manual transmission):

3k: 18.0lbs 50% WGDC
4k: 19.1lbs 42.4% (Average between two data points)
5k: 18.1lbs 63% WGDC
6k: 19.3lbs 54.9% WGDC
6.5k: 17.1lbs 52.4 WGDC

I took the average of my boost and WGDC from 3k to 6500 and it worked out to be 18.8 Lbs of Boost at 51% WGDC.

https://datazap.me/u/browbmw/rev-58-...5-19-30&solo=4

07-20-2021, 11:06 AM	#92
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	4.4 0-60, 12.9 1/4 mile - not bad stock - but it's still a KIA. __________________ 2011 F10 S55 6MT Website Insta @bimmerhausperformance YouTube
	Appreciate 0 Quote

07-20-2021, 04:16 PM	#94
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	Just got word from DS and he said that the codes I got are a GOOD SIGN. He said he can adjust things so that the CAI doesn't ram too much air into the cylinders (which is where this code is from) by adjusting the throttle plate (pulling it back) but what that means is on the top end he'll be able to get more boost out of things as long as I can get the fuel there... so things are looking up as far as the behind the grill intake being an actual viable upgrade and a product I might be able to get out there to the community. Here you can see that at about 3500 RPMS even though I had the pedal smashed it was starting to close the throttle plate because it was getting TOO MUCH AIR... all good things! Attached Images __________________ 2011 F10 S55 6MT Website Insta @bimmerhausperformance YouTube Last edited by BimmerHausPerformance; 07-20-2021 at 04:21 PM..
	Appreciate 1 95blkmax212.50 Quote

07-24-2021, 01:17 PM	#99
Unspec Colonel 1301 Rep 2,591 Posts Drives: 2015 BMW 535xi Join Date: Apr 2019 Location: DMV iTrader: (1)	I am now deathly curious as to how the MST intake measures against this custom one. __________________ 2015 BMW 535xi Bootmod3 Stage 2 \| ER charge pipe \| ER Catted DP \| Remus Exhaust \| Gplus FMIC \| KW V3 \| Turner Monoball thrust arm bushings \| Wallet regrets ISTA VM Setup/Tutorial
	Appreciate 0 Quote

07-26-2021, 10:49 AM	#101
Bmwdoubles_ Lieutenant 194 Rep 517 Posts Drives: BMW F10 535 Join Date: Mar 2020 Location: Los Angeles iTrader: (1) Garage List [0.00]	I went through this with my attempt to put the intake behind the grille and worked with DS. Here are some areas to check to avoid difficult to solve errors. - smoke test and cure all leaks - check for unmetered air after maf - ensure your TMAPs are in working order(air plausibility errors can be checked by swapping tmaps atmospheric with charge pipe) - of course the tune itself - custom wiring harness, gauge of wires is oem and voltage is correct __________________ BPM Tuned, Advanced Fuel Dynamics, Paddoq Valved Exhaust, Paddoq Magnetic Paddles, EDC dampers, Dinan Springs, H&R Sway. DCT all day long. https://www.youtube.com/channel/UCFu...fWjCtOz49FDMlg
	Appreciate 2 BimmerHausPerformance513.00 95blkmax212.50 Quote

01-17-2022, 06:47 PM	#108
E90angeleyes Private 7 Rep 90 Posts Drives: 325i Join Date: May 2008 Location: california iTrader: (1)	Was this ever completed? Wasn't there some issue regarding running lean or something? Just wondering if there has been an official final edit or something.
	Appreciate 0 Quote

01-17-2022, 06:51 PM	#109
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	We are still working on the final tune… just about done. I was able to hit 21lbs of boost at around 6k rpm with a wgdc of only 45-55%. Once I am done with this round (pump gas tune) I'll be starting the e85 and meth tune. Shooting for 600whp. __________________ 2011 F10 S55 6MT Website Insta @bimmerhausperformance YouTube
	Appreciate 0 Quote

01-18-2022, 03:25 PM	#110
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	Here is a log I just pulled. I actually got to play with a unicorn when I went out to get this, v10 m6... it couldn't keep up lol. That was fun. Anyway, DS hasn't yet opened up the WGDC on this to make it hit full boost up top, that'll be his next adjustment however this does give you some solid data as it relates to the intake. You'll also notice quite a bit of oscillation between 3500 and 5500 RPM's but none the less you can still see some #'s there, we are still smoothing that out in the tune. There isn't much point in logging this high of RPM because to stay in the power band I'd be shifting at about 6200 or so, and the turbo starts to fall off up top but none the less here it is. 4th gear @ 7k rpms is like 140MPH so yea, no thanks. Breakdown of a 4th gear pull (manual transmission): 3k: 18.0lbs 50% WGDC 4k: 19.1lbs 42.4% (Average between two data points) 5k: 18.1lbs 63% WGDC 6k: 19.3lbs 54.9% WGDC 6.5k: 17.1lbs 52.4 WGDC I took the average of my boost and WGDC from 3k to 6500 and it worked out to be 18.8 Lbs of Boost at 51% WGDC. https://datazap.me/u/browbmw/rev-58-...5-19-30&solo=4 __________________ 2011 F10 S55 6MT Website Insta @bimmerhausperformance YouTube Last edited by BimmerHausPerformance; 01-18-2022 at 03:38 PM..
	Appreciate 0 Quote