B58 Billet BMS Intake

ErkanTR16 · 11-29-2016, 12:51 PM

Anyone that has the B58 Billet BMS Intake noticed any MPG gains? I've installed it last night and on my way to work, 30 Mile cruise in Comfort Mode noticed i'm getting 39.4 MPG lol.

Highest i've gotten before the install was around 32-34 MPG.

shawntech · 11-29-2016, 02:34 PM

probably because it skews the maf which in turn skews the mpg calculation

Spikey · 11-29-2016, 02:43 PM

have not driven the 340 in comfort.....it goes into sport as soon as the car is started

kern417 · 11-29-2016, 04:08 PM

how would the maf affect mpg calculation? fuel sender and wheel speed have no connection to maf.

E90ROXS · 11-29-2016, 06:57 PM

Is there a way to save Sport Mode? Why do they have to revert back to normal each time the engine is turned off? There are a few things that BMW really annoys me.

shawntech · 11-29-2016, 07:34 PM

Quote:

Originally Posted by kern417

how would the maf affect mpg calculation? fuel sender and wheel speed have no connection to maf.

What? Please research how the maf value impacts fuel delivery.

kern417 · 11-30-2016, 01:58 PM

Quote:

Originally Posted by ls3c6

What? Please research how the maf value impacts fuel delivery.

miles/gallons = change in odometer/change in fuel level

maf may impact the instantaneous mpg calculation (but more likely using something like throttle position and injector timing/pressure) but it doesn't make sense to calculate the long term from maf readings.

understand now?

shawntech · 11-30-2016, 02:00 PM

Quote:

Originally Posted by kern417

miles/gallons = change in odometer/change in fuel level

maf may impact the instantaneous mpg calculation but it doesn't make sense to calculate the long term from maf readings.

understand now?

yeah that's not how it works at all, try again lol.

FeelinBlessed · 11-30-2016, 05:39 PM

mike@x-ph.com · 11-30-2016, 07:45 PM

Quote:

Originally Posted by Erkan_340i

Anyone that has the B58 Billet BMS Intake noticed any MPG gains? I've installed it last night and on my way to work, 30 Mile cruise in Comfort Mode noticed i'm getting 39.4 MPG lol.

Highest i've gotten before the install was around 32-34 MPG.

I highly doubt the intake will get you another 9mpg but it would be awesome if it did

kern417 · 12-01-2016, 08:17 AM

Quote:

Originally Posted by ls3c6

yeah that's not how it works at all, try again lol.

ok, so explain how it works? how does the car knows your mpg goes to infinity when you're rolling to a stop in gear if the maf readings are the same as idle? how does it know that a maf reading in 1st gear is getting less mpg than the same maf reading in 6th gear? how do cars without a maf calculate mpg?

kern417 · 12-01-2016, 08:26 AM

you know what, i see where the disconnect is so i'll just stop it right here. I'm guessing you're talking about the actual mpg the car is getting vs the mpg readout on the cluster.

I'm *assuming* the OP is referring to the mpg reading on the cluster since he mentioned such a high number and cars are known for being generous with their calculation. Plus he is referencing a 30 mile stretch of highway vs his last fillup.

i agree the maf will affect actual mpg whether it's the wrong size or dirty or whatever. but intakes are known for giving a 1-2 mpg bump (when you can stay out of the throttle)

shawntech · 12-01-2016, 08:28 AM

Quote:

Originally Posted by kern417

ok, so explain how it works? how does the car knows your mpg goes to infinity when you're rolling to a stop in gear if the maf readings are the same as idle? how does it know that a maf reading in 1st gear is getting less mpg than the same maf reading in 6th gear? how do cars without a maf calculate mpg?

MAF isn't the same coasting and it uses MAF + IPW to determine mpg, read how EFI works guy.

kern417 · 12-01-2016, 08:35 PM

injector timing makes sense, maf readings do not.

shawntech · 12-01-2016, 08:54 PM

Quote:

Originally Posted by kern417

injector timing makes sense, maf readings do not.

Seriously man not being a dick, read an EFI book.

Roki187 · 12-02-2016, 05:01 AM

Maf or a map+intake temp are input sensors. Dme bases its calculations on the information gathered from the input sensors + engine load to achieve the desired power output by the consumer (you pressuring the gas pedal). So whatever sensor you have on the vehicle (map/maf) the air volume and air temp is the single most important input of which all calculations are based off of including mpg.

E90ROXS · 12-05-2016, 11:06 PM

Just install mine. Don't bother if you buy this thing for the sound. It's very quiet. Very disappointed!

ErkanTR16 · 12-05-2016, 11:15 PM

Quote:

Originally Posted by E90ROXS

Just install mine. Don't bother if you buy this thing for the sound. It's very quiet. Very disappointed!

Really? No complaints with mine. I can hear it really well with all windows rolled up.

mikeleeyh · 12-06-2016, 04:54 PM

Quote:

Originally Posted by Erkan_340i

Really? No complaints with mine. I can hear it really well with all windows rolled up.

Same here, it sounds amazing.

ErkanTR16 · 12-06-2016, 05:34 PM

Quote:

Originally Posted by mikeleeyh

Quote:

Originally Posted by Erkan_340i

Really? No complaints with mine. I can hear it really well with all windows rolled up.

Same here, it sounds amazing.

Roki187 · 12-06-2016, 07:10 PM

Bms intake was my first mod, and it was worth the $$ for sure. Love the in cabin sound.
Pair that with a downpipe and tune and you're golden. Or just leave the intake on and enjoy

FeelinBlessed · 12-06-2016, 07:14 PM

I need this in my life!!!

11-29-2016, 12:51 PM	#1
ErkanTR16 64-bit 598 Rep 814 Posts Drives: 2018 BMW 340i xDrive Join Date: Aug 2015 Location: Maryland iTrader: (0) Garage List 2018 BMW 340i xDrive [0.00]	B58 Billet BMS Intake \| MPG Anyone that has the B58 Billet BMS Intake noticed any MPG gains? I've installed it last night and on my way to work, 30 Mile cruise in Comfort Mode noticed i'm getting 39.4 MPG lol. Highest i've gotten before the install was around 32-34 MPG.
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11-29-2016, 02:34 PM	#2
shawntech The Wolf 247 Rep 987 Posts Drives: stuff Join Date: Oct 2013 Location: Midwest iTrader: (0) Garage List [0.00] 2019 BMW M850i conv ... [0.00]	probably because it skews the maf which in turn skews the mpg calculation __________________ -2019 BMW m850i convertible -2021 Dodge Charger Hellcat Redeye Widebody
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11-29-2016, 02:43 PM	#3
Spikey Captain 64 Rep 960 Posts Drives: erratically Join Date: Sep 2009 Location: around town~ iTrader: (0)	have not driven the 340 in comfort.....it goes into sport as soon as the car is started
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11-29-2016, 04:08 PM	#4
kern417 Cheapskate 4445 Rep 4,993 Posts Drives: 2018 440i \|2016 340i \| 2010 X5 Join Date: Aug 2016 Location: Cincinnati iTrader: (1)	how would the maf affect mpg calculation? fuel sender and wheel speed have no connection to maf.
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11-29-2016, 06:57 PM	#5
E90ROXS Captain 225 Rep 676 Posts Drives: E90 Join Date: Feb 2012 Location: SJ iTrader: (1)	Is there a way to save Sport Mode? Why do they have to revert back to normal each time the engine is turned off? There are a few things that BMW really annoys me.
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11-30-2016, 05:39 PM	#9
FeelinBlessed Lieutenant 227 Rep 418 Posts Drives: 2017 340i AW MPPSK/Track Join Date: Aug 2016 Location: Los Angeles iTrader: (0) Garage List 2017 BMW [0.00]	__________________ ///MPPSK///MP FRONT SPLITTER///MP KIDNEY GRILLS///CF MIRRORS///CF SPOILER///CF TIPS///HUPER OPTIK 20%///NBT///AC SCHNITZER///M4 437M///ZMP///ZTR///iND///
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12-01-2016, 08:26 AM	#12
kern417 Cheapskate 4445 Rep 4,993 Posts Drives: 2018 440i \|2016 340i \| 2010 X5 Join Date: Aug 2016 Location: Cincinnati iTrader: (1)	you know what, i see where the disconnect is so i'll just stop it right here. I'm guessing you're talking about the actual mpg the car is getting vs the mpg readout on the cluster. I'm assuming the OP is referring to the mpg reading on the cluster since he mentioned such a high number and cars are known for being generous with their calculation. Plus he is referencing a 30 mile stretch of highway vs his last fillup. i agree the maf will affect actual mpg whether it's the wrong size or dirty or whatever. but intakes are known for giving a 1-2 mpg bump (when you can stay out of the throttle)
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12-01-2016, 08:35 PM	#14
kern417 Cheapskate 4445 Rep 4,993 Posts Drives: 2018 440i \|2016 340i \| 2010 X5 Join Date: Aug 2016 Location: Cincinnati iTrader: (1)	injector timing makes sense, maf readings do not.
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12-02-2016, 05:01 AM	#16
Roki187 First Lieutenant 126 Rep 369 Posts Drives: Rocket :-) Join Date: Dec 2013 Location: Earth iTrader: (1) Garage List 2016 Bmw 340xi [0.00] 2016 Vw golf gti pp [0.00] 2003 Svt cobra [0.00] 1995 Nissan 240sx [0.00]	Maf or a map+intake temp are input sensors. Dme bases its calculations on the information gathered from the input sensors + engine load to achieve the desired power output by the consumer (you pressuring the gas pedal). So whatever sensor you have on the vehicle (map/maf) the air volume and air temp is the single most important input of which all calculations are based off of including mpg.
	Appreciate 0 Quote

12-05-2016, 11:06 PM	#17
E90ROXS Captain 225 Rep 676 Posts Drives: E90 Join Date: Feb 2012 Location: SJ iTrader: (1)	Just install mine. Don't bother if you buy this thing for the sound. It's very quiet. Very disappointed!
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12-06-2016, 07:10 PM	#21
Roki187 First Lieutenant 126 Rep 369 Posts Drives: Rocket :-) Join Date: Dec 2013 Location: Earth iTrader: (1) Garage List 2016 Bmw 340xi [0.00] 2016 Vw golf gti pp [0.00] 2003 Svt cobra [0.00] 1995 Nissan 240sx [0.00]	Bms intake was my first mod, and it was worth the $$ for sure. Love the in cabin sound. Pair that with a downpipe and tune and you're golden. Or just leave the intake on and enjoy
	Appreciate 0 Quote

12-06-2016, 07:14 PM	#22
FeelinBlessed Lieutenant 227 Rep 418 Posts Drives: 2017 340i AW MPPSK/Track Join Date: Aug 2016 Location: Los Angeles iTrader: (0) Garage List 2017 BMW [0.00]	I need this in my life!!! __________________ ///MPPSK///MP FRONT SPLITTER///MP KIDNEY GRILLS///CF MIRRORS///CF SPOILER///CF TIPS///HUPER OPTIK 20%///NBT///AC SCHNITZER///M4 437M///ZMP///ZTR///iND///
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