Need some BOV help

HaZe_X · 09-21-2011, 06:26 PM

Got done installing my Synapse BOV today, sounds fantastic but I have 2 concerns.

1) When going over 10lbs of boost at WOT and when it hits ~14.5lbs, during the whole time I have the throttle pressed I'm hearing like a high pitched squeal. Kins of like when your letting air out of a ballon very slowly and it has the squeal to it...Once I left off the throttle the sound is gone.

2) I notice if I shift really fast, the BOV doesn't release pressure, if I slow the shifts down a tiny bit, it releases pressure fine.

Any idea here?

Jeff@TopGearSolutions · 09-21-2011, 06:48 PM

Logs? Sounds like boost leak.

HaZe_X · 09-21-2011, 06:55 PM

No logs...according to gas gauge though boost is good. Im hitting target boost.

One thing i did screw up on was the T-Map o-ring, I tore it. I tried to well nig-rig it back on, it really does seem nice and snug on there...could that be it?

TommyLights · 09-21-2011, 07:00 PM

You will wind up with an oil leak right at that spot if you dont replace the ring....

HaZe_X · 09-21-2011, 07:02 PM

Quote:

Originally Posted by tomz_335i

You will wind up with an oil leak right at that spot if you dont replace the ring....

I looked on realoem...I need a whole new T-map? I don't see it seperate...Any idea where I can get a new o-ring?

Jeff@TopGearSolutions · 09-21-2011, 07:15 PM

Quote:

Originally Posted by HaZe_X

No logs...according to gas gauge though boost is good. Im hitting target boost.

One thing i did screw up on was the T-Map o-ring, I tore it. I tried to well nig-rig it back on, it really does seem nice and snug on there...could that be it?

That might be the like right there.... But if you log WGDC you can see if your turbos are being pushed harder then they should too. Tighten up your clamps on charge pipe.

HaZe_X · 09-21-2011, 08:34 PM

Never really logged with the JB4, ill have to find the Wastegate option...

So everyones guess is the o-ring..wonderful!

I found this http://www.ecstuning.com/Search/N90563801/ES251595/

hope it fits/works

09-21-2011, 06:26 PM	#1
HaZe_X Second Lieutenant 24 Rep 251 Posts Drives: 2011 335is Join Date: Apr 2011 Location: New Jersey iTrader: (0)	Need some BOV help Got done installing my Synapse BOV today, sounds fantastic but I have 2 concerns. 1) When going over 10lbs of boost at WOT and when it hits ~14.5lbs, during the whole time I have the throttle pressed I'm hearing like a high pitched squeal. Kins of like when your letting air out of a ballon very slowly and it has the squeal to it...Once I left off the throttle the sound is gone. 2) I notice if I shift really fast, the BOV doesn't release pressure, if I slow the shifts down a tiny bit, it releases pressure fine. Any idea here? __________________ 2011 335is Le Mans Blue l Black Interior l Convenience Package l iDrive l Heated Seats l Manual Trans l PROcede V5 l BMS DCI l ETS ChargePipe l Synapse BOV l Order Date: 4/12/11 Delivery: 5/30/11
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09-21-2011, 06:48 PM	#2
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Logs? Sounds like boost leak.
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09-21-2011, 06:55 PM	#3
HaZe_X Second Lieutenant 24 Rep 251 Posts Drives: 2011 335is Join Date: Apr 2011 Location: New Jersey iTrader: (0)	No logs...according to gas gauge though boost is good. Im hitting target boost. One thing i did screw up on was the T-Map o-ring, I tore it. I tried to well nig-rig it back on, it really does seem nice and snug on there...could that be it? __________________ 2011 335is Le Mans Blue l Black Interior l Convenience Package l iDrive l Heated Seats l Manual Trans l PROcede V5 l BMS DCI l ETS ChargePipe l Synapse BOV l Order Date: 4/12/11 Delivery: 5/30/11
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09-21-2011, 07:00 PM	#4
TommyLights Colonel 213 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	You will wind up with an oil leak right at that spot if you dont replace the ring.... __________________ https://t.me/pump_upp
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09-21-2011, 08:34 PM	#7
HaZe_X Second Lieutenant 24 Rep 251 Posts Drives: 2011 335is Join Date: Apr 2011 Location: New Jersey iTrader: (0)	Never really logged with the JB4, ill have to find the Wastegate option... So everyones guess is the o-ring..wonderful! I found this http://www.ecstuning.com/Search/N90563801/ES251595/ hope it fits/works __________________ 2011 335is Le Mans Blue l Black Interior l Convenience Package l iDrive l Heated Seats l Manual Trans l PROcede V5 l BMS DCI l ETS ChargePipe l Synapse BOV l Order Date: 4/12/11 Delivery: 5/30/11
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