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Old 08-18-2004, 06:26 PM   #1
Drakar
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Camellia Red Pearl

Question 92 Turbo BOV problem?

Very new here, and new to Turbo Sub's as well.

the problem is when part throttle at 2K I get a wooshhing noise until about 3K and then it sorta gets quieter, also lacking in power. and when I let off I get a PSSSTTT noise.

or if WOT is applied I dont get the previously mentioned noise and it spikes over 3K very fast with alittle "extra" noise onto of the usual Turbo. then if I let off it gives the same PSSTTTT.

So would that be my BOV is toast? or one of the lines is toast?

Thanks for any help.
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Old 08-19-2004, 02:40 PM   #2
Matt Monson
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What you described doesn't sound like you have any problems. Your turbo doesn't fully spool until about 3000rpms. Your BOV is a bypass BOV that reroutes the air back into the intake tract before the turbo. If you are looking for a Fast and Furious type pssttt, you won't get it on a subby. THe recirculating BOV's are the only ones that work properly with our engines and ECU's. You could get a Go Fast Bits BOV that has some sound and still recirculates, but from a functional standpoint the stock unit is good for up to at least 20 psi. Not the best expenditure of $$$ if you are just starting to mod your car...
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Old 08-19-2004, 03:16 PM   #3
Drakar
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Quote:
Originally Posted by Matt Monson
What you described doesn't sound like you have any problems. Your turbo doesn't fully spool until about 3000rpms. Your BOV is a bypass BOV that reroutes the air back into the intake tract before the turbo. If you are looking for a Fast and Furious type pssttt, you won't get it on a subby. THe recirculating BOV's are the only ones that work properly with our engines and ECU's. You could get a Go Fast Bits BOV that has some sound and still recirculates, but from a functional standpoint the stock unit is good for up to at least 20 psi. Not the best expenditure of $$$ if you are just starting to mod your car...

You mis understand ill restate my problem.

The car up till 3 days ago, was fine, no BOV noise, just the turbo whine, and I was happy and the car was happy.

Now it makes loud wooshing noise from 2k to 3K at part throttle and a loud phsssttt when I let off the gas, the car stumbles and loses power all over the space and has an erradict idle now. Im suspect to the BOv but now, seeing as the car spent maybe 5 years of it's life in Palm Springs, that maybe the hoses got some dryrot and are toast causing leaks from the BOV.

Also this car is all stock. oh and Im not looking for a FNF type BOV noise. just want the car to run right
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Old 08-19-2004, 03:20 PM   #4
Fernely
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Sounds like the outlet hose from the BOV is popped loose or cracked. It could also be the connection to the intake pipe I remember on my turbo leg that pipe was cracked to all hell. I ended up making a new intake pipe. If it turns out to be the BOV I have two OEM ones at home PM me if you need one.
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Old 08-19-2004, 03:48 PM   #5
Drakar
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Quote:
Originally Posted by Fernely
Sounds like the outlet hose from the BOV is popped loose or cracked. It could also be the connection to the intake pipe I remember on my turbo leg that pipe was cracked to all hell. I ended up making a new intake pipe. If it turns out to be the BOV I have two OEM ones at home PM me if you need one.
thx for the reply, ill be checking hoses tonight, and buying new ones just as good maintenance.

ill let you know if I need that BOV.

Thanks
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Old 08-19-2004, 06:20 PM   #6
PKer
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Could be the BOV gasket leaking too.
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Old 09-01-2004, 09:38 AM   #7
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Quote:
Originally Posted by PKer
Could be the BOV gasket leaking too.
Don't run a gasket, suspended between to rubber hoses/fittings.....
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Old 08-19-2004, 11:31 PM   #8
Drakar
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Talking

FIXED!!!

Blow the vacuum hose between the BOV and Intake, replaced that and Im back in business.

Thanks guys
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