BOV/ Diverter Valve question!!

BimmerBlack11 · 01-21-2010, 07:20 AM

i dont know if this guy knew what he was talken about but.. Is the HKS Titek BOV bad for the car(BOV in general)? (DCI and BOV are the only mods i got so far..) So if true.. would after market DV's be better?

Fern8321 · 01-21-2010, 11:44 AM

Search..just personal preference, in these cars it doesnt matter if it a bov or dv..im going with aftermarket dv's though..there are plently of posts regarding this, just do your homework

Jonny550 · 01-21-2010, 12:27 PM

I agree with Nando ^^^

1. BOV shoots used pressurized air into the atmosphere

2. DV's dump the pressurized air back into the engine

the way i looked at it was , Bmw uses diverter valves stock so why not make it better.the point is no your not hurting your car.

ar design · 01-21-2010, 12:32 PM

Quote:

Originally Posted by BimmerBlue07

i dont know if this guy knew what he was talken about but.. Is the HKS Titek BOV bad for the car(BOV in general)? (DCI and BOV are the only mods i got so far..) So if true.. would after market DV's be better?

Not at all. 100% personal preference. The car does not have a MAF

Willizm · 01-21-2010, 03:02 PM

Not trying to start a flame war, but I could see where some would like a BOV if they like that sort of sound, but what are the performance gains going with either a BOV or a DV. If a DV doesn't have any asthetic attributes such as sound, then what is the perpose in making the stock setup better?

Asclepius · 01-21-2010, 03:05 PM

Quote:

Originally Posted by Willizm

Not trying to start a flame war, but I could see where some would like a BOV if they like that sort of sound, but what are the performance gains going with either a BOV or a DV. If a DV doesn't have any asthetic attributes such as sound, then what is the perpose in making the stock setup better?

Guess you kinda answered your own question in the last 5 words of your post...."makes the stock set up better" lol....isnt that self explanitory?

LostMarine · 01-21-2010, 03:23 PM

stronger parts for performance oriented people.

ToadHollow · 01-21-2010, 03:33 PM

It's my experience that the aftermarket DVs along with an aftermarket chargepipe (to replace the oem flex piping) causes the boost to hold strong. Boost stays consistent & is very noticeable in the performance.

Not sure if you would notice as much without changing out the oem charge pipe.

lpphreakx06 · 01-21-2010, 03:41 PM

I lost power with forge DV's because I had it on my stock charge pipe. Definitely upgrade the charge pipe to avoid any sealing problems.

YngPhllyKd · 01-21-2010, 04:39 PM

What would be a good charge pipe to go along with the Forge DVs?

Willizm · 01-21-2010, 06:15 PM

Thanks guys for the info. I'm interested in anything that is going to increase the output of the car. Is there any data/graphs on the stock charge pipe vs an aftermarket one. Either dyno or boost levels? I just haven't seen anything concreate on it yet. I've got catless DP's, DCI, and FMIC on it's way and if it's worth going to a charge pipe then I'm going to consider it.

Thanks
-Will

ToadHollow · 01-21-2010, 06:53 PM

Quote:

Originally Posted by Willizm

Thanks guys for the info. I'm interested in anything that is going to increase the output of the car. Is there any data/graphs on the stock charge pipe vs an aftermarket one. Either dyno or boost levels? I just haven't seen anything concreate on it yet. I've got catless DP's, DCI, and FMIC on it's way and if it's worth going to a charge pipe then I'm going to consider it.

Thanks
-Will

The fact that the stock pipe expands, thereby decreasing boost, should be enough reason to go with aftermarket.

FWIW, I currently am using a RR pipe. The difference between the chargepipe function of oem & aftermarket is night & day.

BimmerBlack11 · 01-22-2010, 08:10 AM

Sounds good so i guess i'm keeping my BOV and going to enjoy the head turning sound!

Terrance28 · 01-22-2010, 01:21 PM

Its all personal preference man, not a power adder mod. They are made to hold boost and release them better. But a big +1 on the chargepipe. The stock cp has the accordian tube that flexes under boost and can cause turbulance. YOu can either upgrade the weak factory elbow alone for a quick fix or upgrade the whole pipe.

YngPhllyKd · 01-22-2010, 01:54 PM

Quote:

Originally Posted by Terrance28

Its all personal preference man, not a power adder mod. They are made to hold boost and release them better. But a big +1 on the chargepipe. The stock cp has the accordian tube that flexes under boost and can cause turbulance. YOu can either upgrade the weak factory elbow alone for a quick fix or upgrade the whole pipe.

What's a good charge pipe to go with Forge DVs??

01-21-2010, 07:20 AM	#1
BimmerBlack11 New Member 4 Rep 29 Posts Drives: 11 M 335i SP Join Date: Aug 2009 Location: Washington iTrader: (2)	BOV/ Diverter Valve question!! i dont know if this guy knew what he was talken about but.. Is the HKS Titek BOV bad for the car(BOV in general)? (DCI and BOV are the only mods i got so far..) So if true.. would after market DV's be better? __________________ Batmobile
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01-21-2010, 11:44 AM	#2
Fern8321 Captain 31 Rep 803 Posts Drives: X5 M60i Join Date: Sep 2009 Location: Naples, FL iTrader: (3)	Search..just personal preference, in these cars it doesnt matter if it a bov or dv..im going with aftermarket dv's though..there are plently of posts regarding this, just do your homework
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01-21-2010, 12:27 PM	#3
Jonny550 Brigadier General 261 Rep 4,936 Posts Drives: 2012 550i Xdrive Join Date: Feb 2009 Location: Jersey Shore iTrader: (14)	I agree with Nando ^^^ 1. BOV shoots used pressurized air into the atmosphere 2. DV's dump the pressurized air back into the engine the way i looked at it was , Bmw uses diverter valves stock so why not make it better.the point is no your not hurting your car. __________________ [SIGPIC][/SIGPIC] .
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01-21-2010, 03:02 PM	#5
Willizm Captain 26 Rep 610 Posts Drives: 2009 335Xi and 01 Trans Am WS6 Join Date: Oct 2009 Location: Joliet, Il iTrader: (0)	Not trying to start a flame war, but I could see where some would like a BOV if they like that sort of sound, but what are the performance gains going with either a BOV or a DV. If a DV doesn't have any asthetic attributes such as sound, then what is the perpose in making the stock setup better?
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01-21-2010, 03:23 PM	#7
LostMarine Banned 40 Rep 950 Posts Drives: Lying Vendors Crazy Join Date: Jul 2009 Location: F**K You Up- NJ iTrader: (2)	stronger parts for performance oriented people.
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01-21-2010, 03:33 PM	#8
ToadHollow Once upon a time ...... 279 Rep 5,048 Posts Drives: 2008 JB E92 - SOLD 5/2010 Join Date: Sep 2008 Location: Asti, Italy & Austin, Texas iTrader: (16) Garage List 2008 E92 335i [8.00]	It's my experience that the aftermarket DVs along with an aftermarket chargepipe (to replace the oem flex piping) causes the boost to hold strong. Boost stays consistent & is very noticeable in the performance. Not sure if you would notice as much without changing out the oem charge pipe. __________________
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01-21-2010, 03:41 PM	#9
lpphreakx06 Professional Moose Racer 325 Rep 7,509 Posts Drives: SG 335i E92 RIP + 2015 SS M3 Join Date: Jul 2008 Location: Bellevue, Wa iTrader: (25)	I lost power with forge DV's because I had it on my stock charge pipe. Definitely upgrade the charge pipe to avoid any sealing problems. __________________ Visit my blog anytime: http://www.sfpayments.com BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM
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01-21-2010, 04:39 PM	#10
YngPhllyKd Private First Class 30 Rep 153 Posts Drives: 2010 335i Coupe Join Date: Aug 2007 Location: Philly iTrader: (4)	What would be a good charge pipe to go along with the Forge DVs? __________________ 2010 BMW 335i Coupe 6MT \| Navi, Sports, Cold Weather, Hifi Sound, Premium \| BMS DCI \| Hood Scoops \| JB4 My House Mixes: http://soundcloud.com/khalmusic/breathe-november-2012
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01-21-2010, 06:15 PM	#11
Willizm Captain 26 Rep 610 Posts Drives: 2009 335Xi and 01 Trans Am WS6 Join Date: Oct 2009 Location: Joliet, Il iTrader: (0)	Thanks guys for the info. I'm interested in anything that is going to increase the output of the car. Is there any data/graphs on the stock charge pipe vs an aftermarket one. Either dyno or boost levels? I just haven't seen anything concreate on it yet. I've got catless DP's, DCI, and FMIC on it's way and if it's worth going to a charge pipe then I'm going to consider it. Thanks -Will
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01-22-2010, 08:10 AM	#13
BimmerBlack11 New Member 4 Rep 29 Posts Drives: 11 M 335i SP Join Date: Aug 2009 Location: Washington iTrader: (2)	... Sounds good so i guess i'm keeping my BOV and going to enjoy the head turning sound! __________________ Batmobile
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01-22-2010, 01:21 PM	#14
Terrance28 Brigadier General 114 Rep 3,334 Posts Drives: Crimson Red E92 Join Date: Nov 2007 Location: Killeen, TX iTrader: (17)	Its all personal preference man, not a power adder mod. They are made to hold boost and release them better. But a big +1 on the chargepipe. The stock cp has the accordian tube that flexes under boost and can cause turbulance. YOu can either upgrade the weak factory elbow alone for a quick fix or upgrade the whole pipe. __________________ Mods list got too long, lets just say more than enough.
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