BOV instead of BPV

Chriskm3 · 02-17-2013, 10:15 PM

Quick question to the sc community.
Is there a way to upgrade the by pass valve on the ESS /VF sc kits to a blow off valve without a problematic outcome?
I am intrigued by the way AA supercharger kits sound with the three BOV setup.
Andrew please provide your input along with roman and Robert . Thanks guys
Is there a specific reason why aa kit implements 3 BOVs in their setup or is it strictly cosmentic.

here are the videos:
vf bpv vented to air

Tial BOV

I found this aswell so i figured all post it as well
ESS supercharger with a BOV

dvpouldar26 · 02-17-2013, 11:44 PM

I have personally seen an ESS Kit with it's BRV vented to atmosphere and several VF kits with a Tial BOV fitted on. As far as hardware goes, i'm sure it's doable, however I am not sure if changes have been made to the software to compensate for those changes.

Here's a few photos of the VF kit fitted with a TIAL BOV.

To answer your question, please refer to this past post. EAS has given a more definitive answer on venting to atmosphere rather than recirculating.
http://www.m3post.com/forums/showpos...5&postcount=16

///Montreal3 · 02-18-2013, 01:48 AM

Not sure if they have a vendor account to personally comment, but the Gintani kits uses a Tial BOV as well.

pbonsalb · 02-18-2013, 04:23 AM

Since the metering of air for fuel occurs after the blow off or bypass valve, either kind of valve may be used. It does not matter which. It is only with air mass meters that a bypass valve must be used so that air for which fuel has been metered is not discharged, resulting in a richer than expected mixture.

THE TECH · 02-18-2013, 08:43 AM

Quote:

Originally Posted by pbonsalb

Since the metering of air for fuel occurs after the blow off or bypass valve, either kind of valve may be used. It does not matter which. It is only with air mass meters that a bypass valve must be used so that air for which fuel has been metered is not discharged, resulting in a richer than expected mixture.

+1

akh23456 · 02-18-2013, 09:02 AM

Quote:

Originally Posted by Chriskm3

Quick question to the sc community.
Is there a way to upgrade the by pass valve on the ESS /VF sc kits to a blow off valve without a problematic outcome?
I am intrigued by the way AA supercharger kits sound with the three BOV setup.
Andrew please provide your input along with roman and Robert . Thanks guys
Is there a specific reason why aa kit implements 3 BOVs in their setup or is it strictly cosmentic.

VAC had a BOV i believe at Mpact i would talk to them honestly.

sales@ESSTuning · 02-18-2013, 10:03 AM

Simple to do you can just install one and cap the intake where we feed our bypass back into the intake, just make sure it is adjusted correctly. Personally BOV with a SC sounds awful but for those that think it sounds good it can be done.

tom @ eas · 02-18-2013, 02:25 PM

Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back.

NFAM3 · 02-18-2013, 08:46 PM

Quote:

Originally Posted by tom @ eas

Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back.

LoL. That's awesome.

M3sicko · 02-18-2013, 09:20 PM

Quote:

Originally Posted by tom @ eas

Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back.

I have to say this time 6mt FTW!

HoodR$CH · 02-18-2013, 09:46 PM

Quote:

Originally Posted by M3sicko

Quote:

Originally Posted by tom @ eas

Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back.

I have to say this time 6mt FTW!

^ This! My car has no asthma issues on freeway.

SflBimmer8484 · 02-19-2013, 08:39 AM

Quote:

Originally Posted by Chriskm3

Quick question to the sc community.
Is there a way to upgrade the by pass valve on the ESS /VF sc kits to a blow off valve without a problematic outcome?
I am intrigued by the way AA supercharger kits sound with the three BOV setup.
Andrew please provide your input along with roman and Robert . Thanks guys
Is there a specific reason why aa kit implements 3 BOVs in their setup or is it strictly cosmentic.

There is a reason we have added a 3rd Bov to our system and it is to eliminate the jerky on/off throttling issue many supercharger customers seem to complain about. The Third Bov is actually located behind the bumper and invisible when everything is buttoned up. The results are a oem-silky smooth driving experience for all of our customers. If you get a chance to drive one let us know what you think.

3rd Bov located on the intercooler Piping (see bottom left)

Chriskm3 · 02-19-2013, 08:51 AM

Thank you guys for your input. Another question , does the BPV stay partially open at times to regulate manifold pressure? I came across several threads. One claims that one can revent the BPV to atmosphere and another one that the BPV vacuums at times there fore doing such would have detrimental effect on the setup. Thanks

NikB316 · 02-19-2013, 08:41 PM

Well I have had my AA Gen 1 kit for over 10k miles and Gen 2 kit now for a few hundred and can say that I honestly LOVE the sound of the BOVs. I am not sure why someone had said the SC + BOV sounds bad? Maybe it's that particular setup? I have had many M3 guys drive my car, some with various s/c kits, and they all have said how great the sound is. Not trying to toot my own horn but I actually get a lot more compliments on the particular sound of my car from these M3 guys than I expected! I was first a bit skeptical of BOVs on a DCT myself but after driving the car it was a no brainer. It's not like I hear the BOVs every shift - you really need to open the car up to even hear them! When just cruising around and not shifting aggressively, I can't even tell that they are there. In regard to the car sounding like it has an asthma attack, I would like to hear what these different setups sound like as that doesn't sound very appealing to me.

I've been so busy but after March 1st life should calm down a little bit and I'll get some videos up. Anyone is more than welcome to come take my car for a spin and hear it yourself then also. I will be in Wayne, NJ and East Hanover, NJ 7 days a week starting then.

Chriskm3 · 02-20-2013, 06:26 PM

Quote:

Originally Posted by Roman@ESS

Simple to do you can just install one and cap the intake where we feed our bypass back into the intake, just make sure it is adjusted correctly. Personally BOV with a SC sounds awful but for those that think it sounds good it can be done.

Thank you guys for your input. Another question , does the BPV stay partially open at times to regulate manifold pressure? I came across several threads. One claims that one can revent the BPV to atmosphere and another one that the BPV vacuums at times there fore doing such would have detrimental effect on the setup. Thanks

Chriskm3 · 02-20-2013, 06:27 PM

[QUOTE=Andrew@ActiveAutowerke;13504750]There is a reason we have added a 3rd Bov to our system and it is to eliminate the jerky on/off throttling issue many supercharger customers seem to complain about. The Third Bov is actually located behind the bumper and invisible when everything is buttoned up. The results are a oem-silky smooth driving experience for all of our customers. If you get a chance to drive one let us know what you think.

Thank you guys for your input. Another question , does the BPV stay partially open at times to regulate manifold pressure? I came across several threads. One claims that one can revent the BPV to atmosphere and another one that the BPV vacuums at times there fore doing such would have detrimental effect on the setup. Thanks

GirlsGarage · 02-20-2013, 07:26 PM

Quote:

Originally Posted by Roman@ESS

Simple to do you can just install one and cap the intake where we feed our bypass back into the intake, just make sure it is adjusted correctly. Personally BOV with a SC sounds awful but for those that think it sounds good it can be done.

which BOV do u recommend that works with Ess Manifold well?!

THE-FN-MAN · 02-20-2013, 07:46 PM

Part of the reason I went with Gintani is because of the beautiful sounds their kit makes. Get a BOV man, you'll love it

tom @ eas · 02-20-2013, 07:57 PM

Quote:

Originally Posted by EssM3

which BOV do u recommend that works with Ess Manifold well?!

Even the one provided with the kit will work, as long as the intake tract is properly capped off.

NikB316 · 02-20-2013, 08:36 PM

BOV FTW. Th-Fn-Man speaks the truth! I imagine the Gintani setup sounds quite sexy as well!

One thing maybe some could shed some more light on...I have heard of some issues with the kits without BOVs that the car will actually keep on pulling when in boost but off the throttle? Maybe some guys can chime in to see if this is an isolated incident or exactly what is happening?

m33 · 02-20-2013, 09:37 PM

Quote:

Originally Posted by tom @ eas

Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back.

Lmfao !!!!!! Fluttering choo choo train , and not io mention boost drop cause slight lag .

M3sicko · 02-20-2013, 10:05 PM

Quote:

Originally Posted by tom @ eas

Even the one provided with the kit will work, as long as the intake tract is properly capped off.

I would like to see someone getting it done as i am really considering going that route! A DIY thread would be awesome.

02-17-2013, 10:15 PM	#1
Chriskm3 Colonel 59 Rep 2,186 Posts Drives: M3 Join Date: Jul 2012 Location: Toronto iTrader: (4)	BOV instead of BPV Quick question to the sc community. Is there a way to upgrade the by pass valve on the ESS /VF sc kits to a blow off valve without a problematic outcome? I am intrigued by the way AA supercharger kits sound with the three BOV setup. Andrew please provide your input along with roman and Robert . Thanks guys Is there a specific reason why aa kit implements 3 BOVs in their setup or is it strictly cosmentic. here are the videos: vf bpv vented to air Tial BOV I found this aswell so i figured all post it as well ESS supercharger with a BOV Attached Images __________________ Vf supercharger + tune/H&R coils/ Akra evolution exhaust/Volk te37/ Rs-3 tires/ Brembos /TIal BOV/ OSS blacked out headlights/LUX v3/Led taillights/ Challenge Front lip/ P3 vent gauge/ F10 m5 shift mob/Matte black front grills/ And a funky air fresher Last edited by Chriskm3; 03-01-2013 at 01:35 PM..
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02-17-2013, 11:44 PM	#2
dvpouldar26 Major 64 Rep 1,498 Posts Drives: 2008 e92 328i, Porsche 987.1 Join Date: May 2008 Location: Beverly Hills, CA iTrader: (4)	I have personally seen an ESS Kit with it's BRV vented to atmosphere and several VF kits with a Tial BOV fitted on. As far as hardware goes, i'm sure it's doable, however I am not sure if changes have been made to the software to compensate for those changes. Here's a few photos of the VF kit fitted with a TIAL BOV. To answer your question, please refer to this past post. EAS has given a more definitive answer on venting to atmosphere rather than recirculating. http://www.m3post.com/forums/showpos...5&postcount=16 Attached Images __________________ E92 328i Jet Black / Gloss Black Grilles / 8000k D1S low beam / 6000k HID fogs / GP Thunder 8500k angels & cornering bulbs / black reflectors / gloss black vinyled window trim / tints / smoked rear turn signals / black roundels / AC Schnitzer roof spoiler / VRS style decklid spoiler / Matte black Stripes / Rear fogs / matte mirrors / 19" LM reps / APR lip Last edited by dvpouldar26; 02-18-2013 at 02:30 AM..
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02-18-2013, 01:48 AM	#3
///Montreal3 Second Lieutenant 4 Rep 233 Posts Drives: 2011 AW E92 M3 Join Date: Dec 2011 Location: ///Montreal iTrader: (0)	Not sure if they have a vendor account to personally comment, but the Gintani kits uses a Tial BOV as well.
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02-18-2013, 04:23 AM	#4
pbonsalb Lieutenant General 5234 Rep 10,616 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	Since the metering of air for fuel occurs after the blow off or bypass valve, either kind of valve may be used. It does not matter which. It is only with air mass meters that a bypass valve must be used so that air for which fuel has been metered is not discharged, resulting in a richer than expected mixture.
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02-18-2013, 10:03 AM	#7
sales@ESSTuning 391 Rep 3,149 Posts Drives: ESS M3 / M4 Join Date: May 2007 Location: AZ iTrader: (6)	Simple to do you can just install one and cap the intake where we feed our bypass back into the intake, just make sure it is adjusted correctly. Personally BOV with a SC sounds awful but for those that think it sounds good it can be done.
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02-18-2013, 02:25 PM	#8
tom @ eas BimmerPost Supporting Vendor 8224 Rep 18,823 Posts Drives: BMW Join Date: Nov 2005 Location: Anaheim, CA iTrader: (19) Garage List 2018 BMW i3s [5.00] 2010 BMW M3 [6.50] 2015 BMW M4 [6.20]	Don't recommend it on a DCT car. Did a trip back from Vegas from a track event with the Tial installed and it sounded like it was having an asthma attack the entire way back. __________________ Tom G. \| european auto source (eas) email: tom@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x22 GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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02-19-2013, 08:51 AM	#13
Chriskm3 Colonel 59 Rep 2,186 Posts Drives: M3 Join Date: Jul 2012 Location: Toronto iTrader: (4)	Thank you guys for your input. Another question , does the BPV stay partially open at times to regulate manifold pressure? I came across several threads. One claims that one can revent the BPV to atmosphere and another one that the BPV vacuums at times there fore doing such would have detrimental effect on the setup. Thanks __________________ Vf supercharger + tune/H&R coils/ Akra evolution exhaust/Volk te37/ Rs-3 tires/ Brembos /TIal BOV/ OSS blacked out headlights/LUX v3/Led taillights/ Challenge Front lip/ P3 vent gauge/ F10 m5 shift mob/Matte black front grills/ And a funky air fresher
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02-19-2013, 08:41 PM	#14
NikB316 Captain 58 Rep 605 Posts Drives: 2014 M5 Competition, F83 M4 Join Date: Aug 2007 Location: Miami, Florida iTrader: (4)	Well I have had my AA Gen 1 kit for over 10k miles and Gen 2 kit now for a few hundred and can say that I honestly LOVE the sound of the BOVs. I am not sure why someone had said the SC + BOV sounds bad? Maybe it's that particular setup? I have had many M3 guys drive my car, some with various s/c kits, and they all have said how great the sound is. Not trying to toot my own horn but I actually get a lot more compliments on the particular sound of my car from these M3 guys than I expected! I was first a bit skeptical of BOVs on a DCT myself but after driving the car it was a no brainer. It's not like I hear the BOVs every shift - you really need to open the car up to even hear them! When just cruising around and not shifting aggressively, I can't even tell that they are there. In regard to the car sounding like it has an asthma attack, I would like to hear what these different setups sound like as that doesn't sound very appealing to me. I've been so busy but after March 1st life should calm down a little bit and I'll get some videos up. Anyone is more than welcome to come take my car for a spin and hear it yourself then also. I will be in Wayne, NJ and East Hanover, NJ 7 days a week starting then. __________________ 2014 M5 Competition Alpine/Sakhir BMS Tune. Undercover Performance Custom Downpipes & Connector. H&R 10mm Spacers. BMW CF Rear Spoiler. IND Cosmetics. ALP & BEL Radar & Laser. 2011 Space Grey E92 M3 AA Gen 2 Lvl 3 586whp 398wtq SAE (sold)
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02-20-2013, 06:27 PM	#16
Chriskm3 Colonel 59 Rep 2,186 Posts Drives: M3 Join Date: Jul 2012 Location: Toronto iTrader: (4)	[QUOTE=Andrew@ActiveAutowerke;13504750]There is a reason we have added a 3rd Bov to our system and it is to eliminate the jerky on/off throttling issue many supercharger customers seem to complain about. The Third Bov is actually located behind the bumper and invisible when everything is buttoned up. The results are a oem-silky smooth driving experience for all of our customers. If you get a chance to drive one let us know what you think. Thank you guys for your input. Another question , does the BPV stay partially open at times to regulate manifold pressure? I came across several threads. One claims that one can revent the BPV to atmosphere and another one that the BPV vacuums at times there fore doing such would have detrimental effect on the setup. Thanks __________________ Vf supercharger + tune/H&R coils/ Akra evolution exhaust/Volk te37/ Rs-3 tires/ Brembos /TIal BOV/ OSS blacked out headlights/LUX v3/Led taillights/ Challenge Front lip/ P3 vent gauge/ F10 m5 shift mob/Matte black front grills/ And a funky air fresher
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02-20-2013, 07:46 PM	#18
THE-FN-MAN Captain 39 Rep 890 Posts Drives: E92 M3 x2 Join Date: Feb 2012 Location: the wood iTrader: (0)	Part of the reason I went with Gintani is because of the beautiful sounds their kit makes. Get a BOV man, you'll love it
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02-20-2013, 08:36 PM	#20
NikB316 Captain 58 Rep 605 Posts Drives: 2014 M5 Competition, F83 M4 Join Date: Aug 2007 Location: Miami, Florida iTrader: (4)	BOV FTW. Th-Fn-Man speaks the truth! I imagine the Gintani setup sounds quite sexy as well! One thing maybe some could shed some more light on...I have heard of some issues with the kits without BOVs that the car will actually keep on pulling when in boost but off the throttle? Maybe some guys can chime in to see if this is an isolated incident or exactly what is happening? __________________ 2014 M5 Competition Alpine/Sakhir BMS Tune. Undercover Performance Custom Downpipes & Connector. H&R 10mm Spacers. BMW CF Rear Spoiler. IND Cosmetics. ALP & BEL Radar & Laser. 2011 Space Grey E92 M3 AA Gen 2 Lvl 3 586whp 398wtq SAE (sold)
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