ER charge pipe - DV or blow off - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

ajshanny · 08-13-2012, 02:18 PM

I'm planning to buy a an ER charge pipe for my 1M and can't decide whether to reuse the stock DVs or get the TIAL blow off set up. A third option would be the Forge replacement DVs.

My car is stock and my objective is to increase reliability for street use and occasional HPDE. Looking for opinions as to advantages and disadvantages of each set up.

Thanks

LofgrenCL · 08-13-2012, 02:47 PM

I too am interested in hear others preference and results..

I also am curious exactly what does the charge pipe look like?

Apparently there are two different models. One for those 2010 and earlier N54 (that have a remove-able accordion rubber connector and 2011 and later models where the rubber piece is permanently attached.

Can anyone confirm which one is correct for the 1M..??
I would assume the longer but is that absolutely a necessity.. ??

Thanks..

OP - I am planning on running the original DVs.. As I do not plan on tracking my car and I am still on the fence about a tune.

Great Car..

MDORPHN · 08-13-2012, 03:07 PM

Unless you'll be running higher boost levels from an aftermarket tune, no reason to switch from the stock diverter valves.

My 2 cents.

Neil

LV-E92M3 · 08-13-2012, 03:20 PM

get an ER charge pipe with a forge DV. You'll lose about 5-7hp with a blow off valve.

ajshanny · 08-13-2012, 03:59 PM

Quote:

Originally Posted by LV-E92M3

get an ER charge pipe with a forge DV. You'll lose about 5-7hp with a blow off valve.

Why is the Forge DV better than stock? More reliable? I haven't heard anyone mention any failure of a stock DV before.

MDORPHN · 08-13-2012, 04:31 PM

Quote:

Originally Posted by ajshanny

Why is the Forge DV better than stock? More reliable? I haven't heard anyone mention any failure of a stock DV before.

Failures are pretty common at higher boost levels.

Neil

Amnizu · 08-13-2012, 05:19 PM

Not sure about the n54 valves from forge but typically they are serviceable and you can swap the springs to a desired levels.

In short, the car was designed for DVs unless you want to tune around the complications of BOVs you should stick with DVs.

sparoz · 08-13-2012, 05:26 PM

Definitely DVs unless you go very high boost. Don't want to loose that power to sound

.

sparoz · 08-13-2012, 05:41 PM

Quote:

Originally Posted by LofgrenCL

I too am interested in hear others preference and results..

I also am curious exactly what does the charge pipe look like?

Apparently there are two different models. One for those 2010 and earlier N54 (that have a remove-able accordion rubber connector and 2011 and later models where the rubber piece is permanently attached.

Can anyone confirm which one is correct for the 1M..??
I would assume the longer but is that absolutely a necessity.. ??

Thanks..

OP - I am planning on running the original DVs.. As I do not plan on tracking my car and I am still on the fence about a tune.

Great Car..

If you are not tracking or tuning, then really there is no need for a chargepipe until the stock dies. If it is for looks - it certainly looks good! I will try to post some pics tonight.

Texas F1 · 08-13-2012, 06:17 PM

I had this same question recently when I replaced my broken stock charge pipe with the ER pipe. I have the COBB stage 2+ intercooler tune, so I'm running more than stock power levels. I asked COBB about the advisability of upgrading the stock diverter valves and here is the advice I got:

"Initially the stock valves should hold up very nicely. Heat and time does takes it's toll on them. If you want to be cautious, I would recommend the Forge BPVs. They have worked great on the our 335i stock all the way up to the aftermarket turbos. Hope that helps."

So, I plan to wait until my stock ones melt or wear out at some point in the future. So far, all the new plumbing is holding together.

lightning · 08-14-2012, 05:48 PM

Quote:

Originally Posted by LV-E92M3

get an ER charge pipe with a forge DV. You'll lose about 5-7hp with a blow off valve.

How does a bov cause a 5-7hp loss for our car? Would like to hear your explanation

1911A145 · 08-14-2012, 07:12 PM

Quote:

Originally Posted by lightning

How does a bov cause a 5-7hp loss for our car? Would like to hear your explanation

I was just about to ask the same thing... lol

deepsunzhine · 08-16-2012, 09:52 PM

Quote:

Originally Posted by 1911A145

Quote:

Originally Posted by lightning

How does a bov cause a 5-7hp loss for our car? Would like to hear your explanation

I was just about to ask the same thing... lol

+2....they say u would gain hps....im confused

ams109 · 08-16-2012, 10:03 PM

stett charge pipe with forge dv's

HP Autowerks · 08-17-2012, 03:32 PM

Stock DV's with ER CP is fine if you are stock or slightly elevated boost levels. Forge DV's will give you more reliability at higher boost levels.

We went with the BOV simply because of the cleaner look, without the additional couplers.

deepsunzhine · 08-17-2012, 10:02 PM

Quote:

Originally Posted by lightning

Quote:

Originally Posted by LV-E92M3

get an ER charge pipe with a forge DV. You'll lose about 5-7hp with a blow off valve.

How does a bov cause a 5-7hp loss for our car? Would like to hear your explanation

no one is gonna answer this ?... pls....

drumdude1978 · 08-18-2012, 01:28 PM

I'm curious too. I'm planning on upgrading my charge pipe along w the HKS bov. Haven't heard anything about loosing power. Why the sudden remark w no explanation?

1911A145 · 08-22-2012, 03:19 PM

Quote:

Originally Posted by drumdude1978

I'm curious too. I'm planning on upgrading my charge pipe along w the HKS bov. Haven't heard anything about loosing power. Why the sudden remark w no explanation?

because... bullshit. lol

sparoz · 08-22-2012, 06:00 PM

Quote:

Originally Posted by 1911A145

because... bullshit. lol

I am not sure about losing 5-7hp as I have seen no data on this. I would say theoretically at higher rpm where our stock turbo struggles would see some benefit having air recycled back after the turbo.

Now, BOV has been run on many N54 without any report of loss of power so it might not be significant.

That swoosh sound many people like to hear carries some energy - but probably not that significant.

1911A145 · 08-22-2012, 06:59 PM

Quote:

Originally Posted by sparoz

I am not sure about losing 5-7hp as I have seen no data on this. I would say theoretically at higher rpm where our stock turbo struggles would see some benefit having air recycled back after the turbo.

Now, BOV has been run on many N54 without any report of loss of power so it might not be significant.

That swoosh sound many people like to hear carries some energy - but probably not that significant.

A valve that allows excessive air build-up to escape once the throttle bottle closes does nothing to add, nor take away, horsepower created by the engine. Could allowing the air to vent outside create a small lag in the throttle response in the time it takes to fill the intake back with air immediately afterwards? yea... but by no means does an external venting BOV do anything to the HP, especially not take away 5-7 as stated above. Or... because bullshit. like I said. Lol

lightning · 09-17-2012, 10:54 PM

hmmm, in actual fact there is no difference at all between DVs and BOVs.

I'm currently running my ER chargepipe together with Tial BOV, the response seems better than stock IMO.

Anyone tried both BOV and Forged DVs?

lightning · 09-17-2012, 10:58 PM

Quote:

Originally Posted by HP Autowerks

Stock DV's with ER CP is fine if you are stock or slightly elevated boost levels. Forge DV's will give you more reliability at higher boost levels.

We went with the BOV simply because of the cleaner look, without the additional couplers.

So can you tell us if there is a difference between ER CP with forge DVs and the ER CP with a BOV?

08-13-2012, 02:18 PM	#1
ajshanny Second Lieutenant Drives: 1M Join Date: Oct 2008 Location: United States Posts: 200 iTrader: (0)	ER charge pipe - DV or blow off I'm planning to buy a an ER charge pipe for my 1M and can't decide whether to reuse the stock DVs or get the TIAL blow off set up. A third option would be the Forge replacement DVs. My car is stock and my objective is to increase reliability for street use and occasional HPDE. Looking for opinions as to advantages and disadvantages of each set up. Thanks
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08-13-2012, 03:20 PM	#4
LV-E92M3 Lieutenant Drives: Donkey Join Date: Apr 2009 Location: كابول‎ Posts: 506 iTrader: (1)	get an ER charge pipe with a forge DV. You'll lose about 5-7hp with a blow off valve. __________________ E92 M3 DCT/ESS VT-575/FABSPEED hfc's/AE exhaust/BBS LM 19'/ KW CS/RD sways/STOPTECH TK/ RECARO PP /BMW PSW/WIECHERS SPORT roll cage/CF parts that covers the back seat/VRS hood/bumper/csl trunk/diffuser type 2/CF:mirror cap/side & front grills

08-13-2012, 05:26 PM	#8
sparoz Brigadier General Drives: VO 1///M; AW X3 30d Join Date: Jun 2008 Location: Sunshine Coast Posts: 4,524 iTrader: (0)	Definitely DVs unless you go very high boost. Don't want to loose that power to sound . __________________ 1///M - Valencia Orange X3 30d - Alpine White Under Six Seconds http://www.under6s.com

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08-13-2012, 02:47 PM	#2
LofgrenCL Private First Class Drives: 1M, E89, E46 Join Date: Jan 2010 Location: Stuttgart, Germany Posts: 140 iTrader: (5)	I too am interested in hear others preference and results.. I also am curious exactly what does the charge pipe look like? Apparently there are two different models. One for those 2010 and earlier N54 (that have a remove-able accordion rubber connector and 2011 and later models where the rubber piece is permanently attached. Can anyone confirm which one is correct for the 1M..?? I would assume the longer but is that absolutely a necessity.. ?? Thanks.. OP - I am planning on running the original DVs.. As I do not plan on tracking my car and I am still on the fence about a tune. Great Car..

08-13-2012, 03:07 PM	#3
MDORPHN Lieutenant Colonel Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC Posts: 1,789 iTrader: (0)	Unless you'll be running higher boost levels from an aftermarket tune, no reason to switch from the stock diverter valves. My 2 cents. Neil

08-13-2012, 05:19 PM	#7
Amnizu Second Lieutenant Drives: 502 of 740 Join Date: May 2010 Location: Seattle Posts: 225 iTrader: (0)	Not sure about the n54 valves from forge but typically they are serviceable and you can swap the springs to a desired levels. In short, the car was designed for DVs unless you want to tune around the complications of BOVs you should stick with DVs.

08-13-2012, 06:17 PM	#10
Texas F1 1M Owner Drives: Lotus, BMW Join Date: Jul 2011 Location: Leander, TX Posts: 174 iTrader: (0)	I had this same question recently when I replaced my broken stock charge pipe with the ER pipe. I have the COBB stage 2+ intercooler tune, so I'm running more than stock power levels. I asked COBB about the advisability of upgrading the stock diverter valves and here is the advice I got: "Initially the stock valves should hold up very nicely. Heat and time does takes it's toll on them. If you want to be cautious, I would recommend the Forge BPVs. They have worked great on the our 335i stock all the way up to the aftermarket turbos. Hope that helps." So, I plan to wait until my stock ones melt or wear out at some point in the future. So far, all the new plumbing is holding together.

08-16-2012, 10:03 PM	#14
ams109 Enlisted Member Drives: 135i n54 Join Date: Apr 2012 Location: Bahrain Posts: 47 iTrader: (0)	stett charge pipe with forge dv's

08-17-2012, 03:32 PM	#15
HP Autowerks Lieutenant General Drives: 2011 135i DCT & 2011 1M Join Date: Mar 2007 Location: Santa Barbara, AST, Brembo, Eibach, H&R, GIAC, Koni, Quaife, Stoptech, Vorshlag, Posts: 10,052 iTrader: (26)	Stock DV's with ER CP is fine if you are stock or slightly elevated boost levels. Forge DV's will give you more reliability at higher boost levels. We went with the BOV simply because of the cleaner look, without the additional couplers.

08-18-2012, 01:28 PM	#17
drumdude1978 New Member Drives: 2011 BMW 1 Series M (VO) Join Date: Jun 2012 Location: Hollywood, Fl Posts: 14 iTrader: (0)	I'm curious too. I'm planning on upgrading my charge pipe along w the HKS bov. Haven't heard anything about loosing power. Why the sudden remark w no explanation?

09-17-2012, 10:54 PM	#21
lightning Private First Class Drives: BMW 1M AW Join Date: Sep 2009 Location: Singapore Posts: 177 iTrader: (0)	hmmm, in actual fact there is no difference at all between DVs and BOVs. I'm currently running my ER chargepipe together with Tial BOV, the response seems better than stock IMO. Anyone tried both BOV and Forged DVs?