Tial BOV

JacobT · 03-19-2014, 06:49 PM

Just received my new Tial BOV. After some test, I found out the valve is so tight I could not push it with bare hand at all no matter how hard I tried. Is this normal?

I took it apart and found out the cylinder was stuck so I lubricated the rubber o-ring on the cylinder and put it back together. The spring was copper color, is this the so-called yellow spring? The spring was so strong, took lots of force to push it back in place. After re-assembled, I still could not push the cylinder to move even 1 mm by hand. I was wondering if this BOV will work on the car after installation? Please help!

AlpineSwift · 03-19-2014, 06:55 PM

Copper? That sounds like a brown spring to me which is WAY too strong. The Yellow spring is like a Ferrari Yellow so you definitely don't have the right spring.

EDIT: Use this as a reference - http://www.tialsport.com/documents/w3_tial_qqr_sp.pdf

JacobT · 03-19-2014, 08:16 PM

Quote:

Originally Posted by AlpineSwift

Copper? That sounds like a brown spring to me which is WAY too strong. The Yellow spring is like a Ferrari Yellow so you definitely don't have the right spring.

EDIT: Use this as a reference - http://www.tialsport.com/documents/w3_tial_qqr_sp.pdf

From what I can tell, it's not painted. It's just raw metal. Can you push the cylinder by hand?

AlpineSwift · 03-19-2014, 08:17 PM

If it's raw metal then it's an unpainted spring which is one step lower in resistance to the yellow.

JacobT · 03-20-2014, 10:19 AM

Any more input on Tial Q BOV?

e90Mark · 03-20-2014, 12:59 PM

Post up a picture of your spring..

Jeff@TopGearSolutions · 03-20-2014, 01:04 PM

Where did you get it from and did you get it with it's original box? If so what was the part number on it?

JacobT · 03-20-2014, 03:29 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

Where did you get it from and did you get it with it's original box? If so what was the part number on it?

I got it from Evalution Racework, the Tial BOV was installed on ER charge pipe when I got it. I've noticed the other Tial BOV's have "Made in US" on the top, but mine has the "ER" there. So this is the ER version of Tial Q BOV.

Javy · 03-20-2014, 03:47 PM

I have a Tial BOV. Not to long ago I took it apart and lubricated it. The spring inside was what Tial calls the "plain color" which has a spring pressure of 11psi. It was the one recommended for my e92. I have to say, when the BOV is assembled, it is quite difficult to move the piston by hand.

JacobT · 03-20-2014, 04:01 PM

Looks like we got the same Tial BOV. I also took it apart and lubricated the internals. So is you Tial BOV functioning correctly? Does it release charged pressure when you let off the gas pedal?

Give_Em_The_DD · 03-20-2014, 05:00 PM

Just ordered my tial BOV/ER Charge-pipe today from TGS...it seems like many of you guys are having to lubricate the tial BOV, is pretty common?

JacobT · 03-20-2014, 08:21 PM

Quote:

Originally Posted by Give_Em_The_DD

Just ordered my tial BOV/ER Charge-pipe today from TGS...it seems like many of you guys are having to lubricate the tial BOV, is pretty common?

Yes, if the Tial BOV sees a long shelf time, the rubber ring on the cylinder got stuck to the side wall, so it's not moving at all. When I opened it up, even without the spring, the cylinder would not move, after some lubrication, the cylinder moved freely inside the chamber.

select99 · 03-20-2014, 08:37 PM

JUST install vrsf cp vs tial bov,bought new from vr-speed,so do i need to lubricate anything or check color of my spring.cause i dont know how it should work correctly!but as for me now everything is ok,but a little quite!

Give_Em_The_DD · 03-21-2014, 12:40 AM

Quote:

Originally Posted by JacobT

Quote:

Originally Posted by Give_Em_The_DD

Just ordered my tial BOV/ER Charge-pipe today from TGS...it seems like many of you guys are having to lubricate the tial BOV, is pretty common?

Yes, if the Tial BOV sees a long shelf time, the rubber ring on the cylinder got stuck to the side wall, so it's not moving at all. When I opened it up, even without the spring, the cylinder would not move, after some lubrication, the cylinder moved freely inside the chamber.

What did you use for lubrication?

SINGH_ · 03-21-2014, 03:59 AM

I'm gonna go from a raw spring to a white on soon... I get the bov opening in multiple phases/flutter at low boost levels. I'm sure its not compressor surge, but worth switching out anyways - sounds annoying lol.

e90Mark · 03-21-2014, 10:07 AM

Quote:

Originally Posted by E92 N54

I'm gonna go from a raw spring to a white on soon... I get the bov opening in multiple phases/flutter at low boost levels. I'm sure its not compressor surge, but worth switching out anyways - sounds annoying lol.

I get this sometimes. Did you ever have the Yellow spring?

Mike@N54Tuning.com · 03-21-2014, 10:50 AM

Quote:

Originally Posted by JacobT

I got it from Evalution Racework, the Tial BOV was installed on ER charge pipe when I got it. I've noticed the other Tial BOV's have "Made in US" on the top, but mine has the "ER" there. So this is the ER version of Tial Q BOV.

Its just a Tial BOV made for ER. ER orders so many Tials that Tial puts the ER logo on them.

Mike

Dcara · 03-21-2014, 12:08 PM

Quote:

Originally Posted by Javy

I have a Tial BOV. Not to long ago I took it apart and lubricated it. The spring inside was what Tial calls the "plain color" which has a spring pressure of 11psi. It was the one recommended for my e92. I have to say, when the BOV is assembled, it is quite difficult to move the piston by hand.

So f you have that bov rated at 11psi and u get a tune so your hitting up to 18 psi do you need to order a different doing? How does it work for guys that stunning their tune all the time?? You have to keep swappng the springs?

AlpineSwift · 03-21-2014, 12:09 PM

The 11psi spring is for vacuum on the Tial bov. It doesn't involve boost pressure.

JacobT · 03-21-2014, 12:27 PM

Quote:

Originally Posted by Give_Em_The_DD

What did you use for lubrication?

I just applied small amount of engine oil around the cylinder and the o-ring. Tha should be good enough.

Dcara · 03-21-2014, 12:37 PM

Quote:

Originally Posted by AlpineSwift

The 11psi spring is for vacuum on the Tial bov. It doesn't involve boost pressure.

Oh ok thanks!!

SINGH_ · 03-21-2014, 12:44 PM

Quote:

Originally Posted by e90Mark

I get this sometimes. Did you ever have the Yellow spring?

No I didn't, just came with the plain spring. Hopefully the white spring will fix now low boost flutters.

03-19-2014, 06:49 PM	#1
JacobT Captain 74 Rep 751 Posts Drives: 08 E90 335i JB Join Date: Sep 2007 Location: Austin TX iTrader: (2) Garage List 2008 BMW E90 335iA [9.50] 1999 Lexus GS400 [0.00]	Tial BOV Just received my new Tial BOV. After some test, I found out the valve is so tight I could not push it with bare hand at all no matter how hard I tried. Is this normal? I took it apart and found out the cylinder was stuck so I lubricated the rubber o-ring on the cylinder and put it back together. The spring was copper color, is this the so-called yellow spring? The spring was so strong, took lots of force to push it back in place. After re-assembled, I still could not push the cylinder to move even 1 mm by hand. I was wondering if this BOV will work on the car after installation? Please help! __________________ 08 E90 335i Jet Black/Black/Piano Black Step/PS ZSP ZPP PDC CA KW V2/AG M550/ACS roof/Pedals/CF Roundels/M3 rep bumper/Lux 5.0/Yellow fogs/Alpina B3/JB4 G5/VRSF FMIC/ER CP/Tial BOV/Muffler Delete
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03-19-2014, 06:55 PM	#2
AlpineSwift Colonel 78 Rep 2,114 Posts Drives: 2008 335Xi Coupé Join Date: Feb 2010 Location: Castle Rock, CO iTrader: (3)	Copper? That sounds like a brown spring to me which is WAY too strong. The Yellow spring is like a Ferrari Yellow so you definitely don't have the right spring. EDIT: Use this as a reference - http://www.tialsport.com/documents/w3_tial_qqr_sp.pdf __________________ E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler. Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile.
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03-19-2014, 08:17 PM	#4
AlpineSwift Colonel 78 Rep 2,114 Posts Drives: 2008 335Xi Coupé Join Date: Feb 2010 Location: Castle Rock, CO iTrader: (3)	If it's raw metal then it's an unpainted spring which is one step lower in resistance to the yellow. __________________ E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler. Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile.
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03-20-2014, 10:19 AM	#5
JacobT Captain 74 Rep 751 Posts Drives: 08 E90 335i JB Join Date: Sep 2007 Location: Austin TX iTrader: (2) Garage List 2008 BMW E90 335iA [9.50] 1999 Lexus GS400 [0.00]	Any more input on Tial Q BOV? __________________ 08 E90 335i Jet Black/Black/Piano Black Step/PS ZSP ZPP PDC CA KW V2/AG M550/ACS roof/Pedals/CF Roundels/M3 rep bumper/Lux 5.0/Yellow fogs/Alpina B3/JB4 G5/VRSF FMIC/ER CP/Tial BOV/Muffler Delete
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03-20-2014, 12:59 PM	#6
e90Mark Captain 31 Rep 722 Posts Drives: 2008 BMW 335xi Join Date: Aug 2013 Location: Detroit iTrader: (5) Garage List 2008 BMW 335xi [10.00]	Post up a picture of your spring..
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03-20-2014, 01:04 PM	#7
Jeff@TopGearSolutions 3472 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Where did you get it from and did you get it with it's original box? If so what was the part number on it?
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03-20-2014, 03:47 PM	#9
Javy e92javy 46 Rep 1,056 Posts Drives: Alpine White E92 M Join Date: Apr 2010 Location: Miami iTrader: (7)	I have a Tial BOV. Not to long ago I took it apart and lubricated it. The spring inside was what Tial calls the "plain color" which has a spring pressure of 11psi. It was the one recommended for my e92. I have to say, when the BOV is assembled, it is quite difficult to move the piston by hand. __________________ Instagram- (javy_e92) 09 335i coupe / M package / Alpine White / Dinan Stage 2 / Alpina B3 Flash / Alufelgen SF71 / ST coils / Lux H8 / AFE Stage 2 intake / 6700k mtech HID / Performance trunk spoiler / Gloss black roof / CF interior wrap / PE Muffler Mod / ETS Charge pipe / Tial BOV / Cyba Quad Diffuser / Cyba Quad Black Chrome tips / Gloss black grills / AW reflectors / LED turn signals / Remote Key +
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03-20-2014, 04:01 PM	#10
JacobT Captain 74 Rep 751 Posts Drives: 08 E90 335i JB Join Date: Sep 2007 Location: Austin TX iTrader: (2) Garage List 2008 BMW E90 335iA [9.50] 1999 Lexus GS400 [0.00]	Looks like we got the same Tial BOV. I also took it apart and lubricated the internals. So is you Tial BOV functioning correctly? Does it release charged pressure when you let off the gas pedal? __________________ 08 E90 335i Jet Black/Black/Piano Black Step/PS ZSP ZPP PDC CA KW V2/AG M550/ACS roof/Pedals/CF Roundels/M3 rep bumper/Lux 5.0/Yellow fogs/Alpina B3/JB4 G5/VRSF FMIC/ER CP/Tial BOV/Muffler Delete
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03-20-2014, 05:00 PM	#11
Give_Em_The_DD Banned 259 Rep 1,084 Posts Drives: 2010 black 335xi coupe Join Date: Sep 2013 Location: IL iTrader: (2)	Just ordered my tial BOV/ER Charge-pipe today from TGS...it seems like many of you guys are having to lubricate the tial BOV, is pretty common?
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03-20-2014, 08:37 PM	#13
select99 Enlisted Member 0 Rep 45 Posts Drives: bmw 335xi e90 Join Date: Mar 2014 Location: philadelphia iTrader: (0) Garage List 2008 bmw 335xi [0.00]	JUST install vrsf cp vs tial bov,bought new from vr-speed,so do i need to lubricate anything or check color of my spring.cause i dont know how it should work correctly!but as for me now everything is ok,but a little quite!
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03-21-2014, 03:59 AM	#15
SINGH_ N54 E92 54 Rep 342 Posts Drives: 2009 BMW 335i Join Date: Nov 2013 Location: Nor Cal iTrader: (1)	I'm gonna go from a raw spring to a white on soon... I get the bov opening in multiple phases/flutter at low boost levels. I'm sure its not compressor surge, but worth switching out anyways - sounds annoying lol.
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03-21-2014, 12:09 PM	#19
AlpineSwift Colonel 78 Rep 2,114 Posts Drives: 2008 335Xi Coupé Join Date: Feb 2010 Location: Castle Rock, CO iTrader: (3)	The 11psi spring is for vacuum on the Tial bov. It doesn't involve boost pressure. __________________ E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler. Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile.
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