Single Turbo + ER CP / Tial BOV = Weird Noise?

aflatau · 10-20-2013, 04:51 PM

Alright guys, I seem to have an issue here with my custom single turbo setup using the ER Charge pipe. I am getting a high pitch noise when it's part throttle and I let go off the throttle.

You can hear the noise clear as day at the 44 second mark.

https://www.facebook.com/photo.php?v...type=2&theater

I have tried a softer spring, changing out vacuum lines, and I directly hooked the vacuum line from the BOV to the intake manifold, still same issue. Please note in this video my boost gauge is not hooked up.

WedgePerformance · 10-20-2013, 04:58 PM

You need to log to see what your boost spikes to when you let off before the BV discharges. I'm not hearing anything wrong. I have Forge DVs and they make an URCH sound when they discharge. I get about a 2 to 3 PSI surge before they discharge.

aflatau · 10-20-2013, 07:10 PM

King mode · 10-20-2013, 07:57 PM

How old is the bov? They can get dirt and stuff in them that make higher pitch discharges from the cylinder scratching on the dirt when it opens.

aflatau · 10-20-2013, 08:07 PM

Quote:

Originally Posted by King mode

How old is the bov? They can get dirt and stuff in them that make higher pitch discharges from the cylinder scratching on the dirt when it opens.

It's brand new.

3000GT MR · 10-20-2013, 08:56 PM

Make sure it's the 11psi spring required. I had to disassemble my brand new tial and lube the inner guide. After that mine started working perfect for the last year. You may be having the same issue. From what i can tell it's not blowing off correctly.

07tundra · 10-20-2013, 11:20 PM

Quote:

Originally Posted by 3000GT MR

Make sure it's the 11psi spring required. I had to disassemble my brand new tial and lube the inner guide. After that mine started working perfect for the last year. You may be having the same issue. From what i can tell it's not blowing off correctly.

Didn't you put a different vaccum source on your intake?

3000GT MR · 10-20-2013, 11:47 PM

Quote:

Originally Posted by 07tundra

Quote:

Originally Posted by 3000GT MR

Make sure it's the 11psi spring required. I had to disassemble my brand new tial and lube the inner guide. After that mine started working perfect for the last year. You may be having the same issue. From what i can tell it's not blowing off correctly.

Didn't you put a different vaccum source on your intake?

Still comes from the manifold just drilled and tapped a -4 line in lieu of the small stock nipple. This was done months after i had issues with the tial.

07tundra · 10-21-2013, 12:03 AM

Quote:

Originally Posted by 3000GT MR

Still comes from the manifold just drilled and tapped a -4 line in lieu of the small stock nipple. This was done months after i had issues with the tial.

So you had fixed the issue by lubing the tial then you did the mod tp the intake...I see! What did you lube it with?

3000GT MR · 10-21-2013, 12:18 AM

Quote:

Originally Posted by 07tundra

Quote:

Originally Posted by 3000GT MR

Still comes from the manifold just drilled and tapped a -4 line in lieu of the small stock nipple. This was done months after i had issues with the tial.

So you had fixed the issue by lubing the tial then you did the mod tp the intake...I see! What did you lube it with?

Yup. I used this stuff call cristolube. Any light lithium grease will work. Once apart you'll see the guide inside. I even put a thin coat around the seal. Which to my amazement is still there and hasn't collected dust or dirt or anything. Make sure the spring is seated properly and the force is even all the way around the piston.

07tundra · 10-21-2013, 01:50 AM

Quote:

Originally Posted by 3000GT MR

Yup. I used this stuff call cristolube. Any light lithium grease will work. Once apart you'll see the guide inside. I even put a thin coat around the seal. Which to my amazement is still there and hasn't collected dust or dirt or anything. Make sure the spring is seated properly and the force is even all the way around the piston.

Ty

10-20-2013, 04:51 PM	#1
aflatau First Lieutenant 57 Rep 334 Posts Drives: XM Join Date: Mar 2012 Location: Buffalo, NY iTrader: (1)	Single Turbo + ER CP / Tial BOV = Weird Noise? Alright guys, I seem to have an issue here with my custom single turbo setup using the ER Charge pipe. I am getting a high pitch noise when it's part throttle and I let go off the throttle. You can hear the noise clear as day at the 44 second mark. https://www.facebook.com/photo.php?v...type=2&theater I have tried a softer spring, changing out vacuum lines, and I directly hooked the vacuum line from the BOV to the intake manifold, still same issue. Please note in this video my boost gauge is not hooked up. __________________ 24 XM(Current) 22 X540i(Sold) 21 M5 Comp(Sold) 07 Single Turbo 335i(one of the first, sold)
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10-20-2013, 04:58 PM	#2
WedgePerformance BimmerPost Supporting Vendor 1339 Rep 1,701 Posts Drives: Slot Machines.. Keep Taking $ Join Date: Oct 2013 Location: Portland, OR iTrader: (0) Garage List 2007 BMW 335i Sport [9.67]	You need to log to see what your boost spikes to when you let off before the BV discharges. I'm not hearing anything wrong. I have Forge DVs and they make an URCH sound when they discharge. I get about a 2 to 3 PSI surge before they discharge.
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10-20-2013, 07:10 PM	#3
aflatau First Lieutenant 57 Rep 334 Posts Drives: XM Join Date: Mar 2012 Location: Buffalo, NY iTrader: (1)	__________________ 24 XM(Current) 22 X540i(Sold) 21 M5 Comp(Sold) 07 Single Turbo 335i(one of the first, sold)
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10-20-2013, 07:57 PM	#4
King mode First Lieutenant 8 Rep 374 Posts Drives: 335xi Join Date: May 2012 Location: Denver iTrader: (0)	How old is the bov? They can get dirt and stuff in them that make higher pitch discharges from the cylinder scratching on the dirt when it opens. __________________ 2008 335xi AT Cobb AP stage 1, drop in filter, the rest stock 13.10@106.01 w/ 1.86 60' (5,800' altitude)
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10-20-2013, 08:56 PM	#6
3000GT MR Major 265 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Make sure it's the 11psi spring required. I had to disassemble my brand new tial and lube the inner guide. After that mine started working perfect for the last year. You may be having the same issue. From what i can tell it's not blowing off correctly. __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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