Supercharging

F12M6MD · 02-22-2015, 04:44 PM

Unfortunately, I have not heard an E9x with a supercharger in person...only through video. Besides some whining from the supercharger, are there any desirable or undesirable noises at idle, on throttle, changing gears, or coming off throttle (from either inside or outside the car) as compared to stock?

Thanks for your input.

Mark

squartus · 02-22-2015, 05:38 PM

After you break it in after about 1500 miles or so the whine will really kick in, which is normal for a supercharger. At idle it makes a fair amount of noise especially if your hood is up, not really a whine at idle more like a gear noise. You really only hear this if your outside the car.

Your exhaust note will get more loud as well as some intake sound when you get on it, This is with ESS im sure the others act in a similar fashion.

Gear changes etc no extra noise other than the whine/intake sound going up and down depending on RPM. Make sure when they install it they align your engine up right or your engine brace may touch the manifold causing vibration.

*Also as a side note, with ESS's air intake the filter will press slightly against your front left fender liner. No biggie unless your running some really close wheel widths, then you may rub slightly

W Cole · 02-22-2015, 05:50 PM

The exhaust got louder. But I don't hear it at idle from inside the car nor any whine under throttle.

With the hood open you can hear the supercharger. Sounds like shit tbh.

CIFUM3 · 02-22-2015, 06:21 PM

Quote:

Originally Posted by W Cole

The exhaust got louder. But I don't hear it at idle from inside the car nor any whine under throttle.

With the hood open you can hear the supercharger. Sounds like shit tbh.

Catless?

BobS · 02-22-2015, 06:32 PM

Doesn't sound to much different. Some more mechanical noise as some have said, but with the upside of the increase in power, the slight change in sound at idle is well worth it. My system and AA use a rotrex blower, which might be slightly quieter IMO.... but overall I don't think you have anything to worry about when it comes to sound and a supercharger on the s65.

ashtaron14 · 02-22-2015, 07:36 PM

My Harrop utilizes a Twin-Screw design, so it's a higher pitch whine from the get go. The whine will resonate when you go from full boost WOT to letting go of the gas to roll to a stop.

For comparison sake, It sounds exactly like the whine from a Charger/Challenger Hellcat in YouTube Videos.

dogbone · 02-22-2015, 10:53 PM

A Vortech-style blower unit has a distinctive grinding/whirring sounding sound at idle, and at speed, you can hear the blower whine spinning at it's own higher rate compared to the engine spinning.

None of these sounds are overwhelming at all, but they are distinctive and give the car a unique sound. Anyone who knows anything about car modding will recognize it immediately. I've been stopped in parking lots by people asking if "something has been done" to the car, or "that's not stock is it?"……hehe And one time, I was entering a track, and the gate/sign-in sheet guy laughed as my car pulled up. He goes, "something's not stock under that hood!" hahahaha

People who aren't familiar with cars won't know anything different. It's not like a crazy loud exhaust that has people turning their heads if that's what you're worried about.

F12M6MD · 02-22-2015, 11:07 PM

Great thanks for everyone's input.

F12M6MD · 02-22-2015, 11:11 PM

Any blowoff noises coming off throttle or during gear changes?

Sered · 02-23-2015, 07:04 AM

Depends on what valve is in use. Most use the Vortech valve (ESS and VF), which recirculates into the intake, making it very quiet, though its the standard 2-bolt flange so you can run aftermarket valves provided you use the correct spring. Some kits have external BOVs vented to atmosphere (like the Active Autowerke kit).

W Cole · 02-23-2015, 11:24 AM

Quote:

Originally Posted by CIFUM3

Catless?

Yes. Before and after.

CIFUM3 · 02-23-2015, 11:25 AM

Quote:

Originally Posted by W Cole

Quote:

Originally Posted by CIFUM3

Catless?

Yes. Before and after.

Got videos????

Prestige@ActiveAutowerke · 02-23-2015, 09:41 PM

Quote:

Originally Posted by BobS

Doesn't sound to much different. Some more mechanical noise as some have said, but with the upside of the increase in power, the slight change in sound at idle is well worth it. My system and AA use a rotrex blower, which might be slightly quieter IMO.... but overall I don't think you have anything to worry about when it comes to sound and a supercharger on the s65.

Agreed. I love how it sounds. Not too loud but menacing at the same time

Amaproracin · 02-23-2015, 11:47 PM

My AA kit you can hear the blow off valve purdy good in this vid.

Amaproracin · 02-23-2015, 11:50 PM

That never gets old!!

to///m · 02-24-2015, 07:08 AM

Quote:

Originally Posted by Amaproracin

My AA kit you can hear the blow off valve purdy good in this vid.

When the time comes... AA is where I will be going

imstimpy · 02-24-2015, 08:57 AM

I drive around with the radio off just to listen. It is subtle, but it is a slightly more engaging sound even around town.

BobS · 02-24-2015, 06:55 PM

hahah that AA car sounds dirty!!! I love it!

lve2xlr8 · 02-24-2015, 08:19 PM

Do you lose the legendary intake sound from the ITBs when you put a blower on?

Patrón · 02-24-2015, 09:50 PM

Quote:

Originally Posted by lve2xlr8

Do you lose the legendary intake sound from the ITBs when you put a blower on?

Yes, but it's worth the trade off.

imstimpy · 02-25-2015, 10:07 AM

Lost the ITB sound? I don't think so. The car still screams at high RPM and you will be too dumbstruck by the power to really take in the engine note.

karim_m3e92 · 01-19-2016, 02:52 PM

Hi guys. I know you might have already answered my question but I just finished installing my ESS 650 on my M3.. The first startup was very noisy.. Some whining noise coming from the belts and a very noisy probably mechanical sound coming from the blower itself. I'm a bit worried.. Any idea if all that is normal?

Thanks in advance

02-22-2015, 04:44 PM	#1
F12M6MD Lieutenant 326 Rep 498 Posts Drives: Rivian R1T Join Date: Dec 2012 Location: TX iTrader: (0)	Supercharging - How does the sound change? Unfortunately, I have not heard an E9x with a supercharger in person...only through video. Besides some whining from the supercharger, are there any desirable or undesirable noises at idle, on throttle, changing gears, or coming off throttle (from either inside or outside the car) as compared to stock? Thanks for your input. Mark __________________ Rivian R1T
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02-22-2015, 05:38 PM	#2
squartus Major 314 Rep 1,017 Posts Drives: 2010 E92 M3 6MT Join Date: Apr 2013 Location: Mississippi iTrader: (0) Garage List 2010 E92 BMW M3 [10.00]	After you break it in after about 1500 miles or so the whine will really kick in, which is normal for a supercharger. At idle it makes a fair amount of noise especially if your hood is up, not really a whine at idle more like a gear noise. You really only hear this if your outside the car. Your exhaust note will get more loud as well as some intake sound when you get on it, This is with ESS im sure the others act in a similar fashion. Gear changes etc no extra noise other than the whine/intake sound going up and down depending on RPM. Make sure when they install it they align your engine up right or your engine brace may touch the manifold causing vibration. *Also as a side note, with ESS's air intake the filter will press slightly against your front left fender liner. No biggie unless your running some really close wheel widths, then you may rub slightly __________________ 4.4L LC stroker/ESS VT2-625/Volk te37 sl's/AA exhaust/DSS Carbon Fiber driveshaft/ARH Headers.. etc
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02-22-2015, 05:50 PM	#3
W Cole Major 145 Rep 1,130 Posts Drives: 2009 M3 Join Date: Dec 2010 Location: Newport Coast, CA iTrader: (5)	The exhaust got louder. But I don't hear it at idle from inside the car nor any whine under throttle. With the hood open you can hear the supercharger. Sounds like shit tbh.
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02-22-2015, 06:32 PM	#5
BobS Colonel 97 Rep 2,002 Posts Drives: M3 Join Date: Feb 2009 Location: Southern NJ iTrader: (0)	Doesn't sound to much different. Some more mechanical noise as some have said, but with the upside of the increase in power, the slight change in sound at idle is well worth it. My system and AA use a rotrex blower, which might be slightly quieter IMO.... but overall I don't think you have anything to worry about when it comes to sound and a supercharger on the s65. __________________ ESS 650 ACM-R Upgrades
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02-22-2015, 07:36 PM	#6
ashtaron14 Major 1123 Rep 1,083 Posts Drives: G80 M3 Join Date: Jun 2011 Location: HK iTrader: (0)	My Harrop utilizes a Twin-Screw design, so it's a higher pitch whine from the get go. The whine will resonate when you go from full boost WOT to letting go of the gas to roll to a stop. For comparison sake, It sounds exactly like the whine from a Charger/Challenger Hellcat in YouTube Videos. __________________ My G80 M3 Follow me on IG
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02-22-2015, 10:53 PM	#7
dogbone Colonel 5356 Rep 2,806 Posts Drives: '09 E90 M3 - IB Join Date: Feb 2012 Location: 93 million miles from the Sun iTrader: (1) Garage List 2009 BMW E92 M3 [0.00] 2009 BMW E90 M3 [0.00]	A Vortech-style blower unit has a distinctive grinding/whirring sounding sound at idle, and at speed, you can hear the blower whine spinning at it's own higher rate compared to the engine spinning. None of these sounds are overwhelming at all, but they are distinctive and give the car a unique sound. Anyone who knows anything about car modding will recognize it immediately. I've been stopped in parking lots by people asking if "something has been done" to the car, or "that's not stock is it?"……hehe And one time, I was entering a track, and the gate/sign-in sheet guy laughed as my car pulled up. He goes, "something's not stock under that hood!" hahahaha People who aren't familiar with cars won't know anything different. It's not like a crazy loud exhaust that has people turning their heads if that's what you're worried about.
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02-22-2015, 11:07 PM	#8
F12M6MD Lieutenant 326 Rep 498 Posts Drives: Rivian R1T Join Date: Dec 2012 Location: TX iTrader: (0)	Great thanks for everyone's input. __________________ Rivian R1T
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02-22-2015, 11:11 PM	#9
F12M6MD Lieutenant 326 Rep 498 Posts Drives: Rivian R1T Join Date: Dec 2012 Location: TX iTrader: (0)	Any blowoff noises coming off throttle or during gear changes? __________________ Rivian R1T
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02-23-2015, 07:04 AM	#10
Sered Major 146 Rep 1,201 Posts Drives: 08 E90 335i Join Date: Apr 2012 Location: Melbourne, FL iTrader: (3)	Depends on what valve is in use. Most use the Vortech valve (ESS and VF), which recirculates into the intake, making it very quiet, though its the standard 2-bolt flange so you can run aftermarket valves provided you use the correct spring. Some kits have external BOVs vented to atmosphere (like the Active Autowerke kit). __________________ '08 E90 w/ just boltons '09 Z4 sDrive35i w/ just boltons
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02-23-2015, 11:47 PM	#14
Amaproracin First Lieutenant 57 Rep 329 Posts Drives: 09 E93 M3 Join Date: May 2012 Location: Delaware iTrader: (1)	My AA kit you can hear the blow off valve purdy good in this vid. __________________ #MyFault
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02-23-2015, 11:50 PM	#15
Amaproracin First Lieutenant 57 Rep 329 Posts Drives: 09 E93 M3 Join Date: May 2012 Location: Delaware iTrader: (1)	That never gets old!! __________________ #MyFault
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02-24-2015, 08:57 AM	#17
imstimpy Enlisted Member 6 Rep 46 Posts Drives: 2010 M3 Join Date: Dec 2013 Location: United States iTrader: (1)	I drive around with the radio off just to listen. It is subtle, but it is a slightly more engaging sound even around town.
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02-24-2015, 06:55 PM	#18
BobS Colonel 97 Rep 2,002 Posts Drives: M3 Join Date: Feb 2009 Location: Southern NJ iTrader: (0)	hahah that AA car sounds dirty!!! I love it! __________________ ESS 650 ACM-R Upgrades
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02-24-2015, 08:19 PM	#19
lve2xlr8 Major 195 Rep 1,186 Posts Drives: E92 M3 Join Date: Aug 2008 Location: Los Angeles iTrader: (11)	Do you lose the legendary intake sound from the ITBs when you put a blower on? __________________ R8 V10 6MT S65 M3 Tesla 3
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02-25-2015, 10:07 AM	#21
imstimpy Enlisted Member 6 Rep 46 Posts Drives: 2010 M3 Join Date: Dec 2013 Location: United States iTrader: (1)	Lost the ITB sound? I don't think so. The car still screams at high RPM and you will be too dumbstruck by the power to really take in the engine note.
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01-19-2016, 02:52 PM	#22
karim_m3e92 New Member 0 Rep 10 Posts Drives: BMW M3 E92 09' Join Date: Feb 2015 Location: Lebanon iTrader: (0)	Hi guys. I know you might have already answered my question but I just finished installing my ESS 650 on my M3.. The first startup was very noisy.. Some whining noise coming from the belts and a very noisy probably mechanical sound coming from the blower itself. I'm a bit worried.. Any idea if all that is normal? Thanks in advance
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