Compressor Surge!!! - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Blackv6Stang · 05-16-2006, 08:29 PM

It's been going on with the stock BPV (converted to Bov) but i never noticed this until i put a CAI on the car. It sounded like a horrible choking sound and almost like a "clunk" but definitely caused by air!

I know this is bad for the turbo but what do i do since even with the car being stock this is still going on!

please help

WRXD · 05-16-2006, 09:20 PM

Quote:

Originally Posted by Blackv6Stang

It's been going on with the stock BPV (converted to Bov) but i never noticed this until i put a CAI on the car. It sounded like a horrible choking sound and almost like a "clunk" but definitely caused by air!

I know this is bad for the turbo but what do i do since even with the car being stock this is still going on!

please help

might have something to do with the stock bpv being converted to a bov...I know on WRXs this is really bad...there is a chance you can suck unfiltered air back in through the valve. I assume that by 'converted' you mean that you just disconnected the recirculating hose and all the air is just venting...

I dont know if its surge or not, but thats definitely not good for the car.

Blackv6Stang · 05-16-2006, 11:20 PM

i'll ask about that on the saab forum too.

thanks man.

any other ideas?

Raven18940 · 05-19-2006, 01:42 PM

I'd love to try and help, but frankly I have idea what kind of noise you're talking about. Diagnosing sounds on the internet sucks.

peteyturbo · 05-19-2006, 10:08 PM

Did you vent your diverter valve out into the open air? Do you have a mass airflow sensor? How much boost does you car hit (maximum)..Answer theese ??'s and I will explain.

03tarmacblack · 05-23-2006, 04:53 PM

Sorry for bringing this back from the dead, but I had the same thing as you when I had the intake and stock diverter valve. Its normal, even though you converted it, its still bypassing some air causing that sound. The only way to solve to problem is to spend some money..(ex. a new bov welded directly to your upper icp, so you dont use the stock tubes that still have a hole for a bypass valve) or go back to stock.

05-16-2006, 08:29 PM	#1
Blackv6Stang Tri-State Addict Join Date: Sep 2005 Location: Langhorne, Pa Member #847 iTrader: (0)	Compressor Surge!!! It's been going on with the stock BPV (converted to Bov) but i never noticed this until i put a CAI on the car. It sounded like a horrible choking sound and almost like a "clunk" but definitely caused by air! I know this is bad for the turbo but what do i do since even with the car being stock this is still going on! please help __________________ -Ryan I love my saab 900. Used to have a 1997 mustang

05-16-2006, 11:20 PM	#3
Blackv6Stang Tri-State Addict Join Date: Sep 2005 Location: Langhorne, Pa Member #847 iTrader: (0)	i'll ask about that on the saab forum too. thanks man. any other ideas? __________________ -Ryan I love my saab 900. Used to have a 1997 mustang

05-23-2006, 04:53 PM	#6
03tarmacblack Tri-State Addict Join Date: Mar 2005 Location: Southampton - Phila. Member #219 iTrader: (0)	Sorry for bringing this back from the dead, but I had the same thing as you when I had the intake and stock diverter valve. Its normal, even though you converted it, its still bypassing some air causing that sound. The only way to solve to problem is to spend some money..(ex. a new bov welded directly to your upper icp, so you dont use the stock tubes that still have a hole for a bypass valve) or go back to stock. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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05-19-2006, 10:08 PM	#5
peteyturbo Tri-State Post Whore Join Date: Feb 2006 Location: NE Phila. Member #1450 iTrader: (0)	Did you vent your diverter valve out into the open air? Do you have a mass airflow sensor? How much boost does you car hit (maximum)..Answer theese ??'s and I will explain.