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HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   Forced Induction (https://www.homemadeturbo.com/forced-induction-7/)
-   -   Greddy Type S BOV....2 vacuum lines? (https://www.homemadeturbo.com/forced-induction-7/greddy-type-s-bov-2-vacuum-lines-60934/)

JolToN49 05-07-2006 07:55 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
How do i know if i have compressor surge? what does it sound like?
Right now i have the bottom line to atmosphere and when the bov goes off it lets out like a laser woosh sound immediately followed by a softer squeak/whistle sound

turboDA6 05-07-2006 07:57 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
Originally Posted by JolToN49
How do i know if i have compressor surge? what does it sound like?
Right now i have the bottom line to atmosphere and when the bov goes off it lets out like a laser woosh sound immediately followed by a softer squeak/whistle sound
the softer squeek whistle noise could be compressor surge, almost like a soft duck or a choked out pigeon

Slo_crx1 05-07-2006 09:04 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
Originally Posted by turboDA6
nope... it takes its air like the wg, positive pressure which helps lift the diaphram which reduces compressor surge cuz it actually opens sooner, gives you more of a whistle rather then a flutter.
That's exactly how my apexi twin chamber works. When i used to get compressor surge it kinda made a chu chu chu chu sound when you'd let off the throttle, just really fast though.

turboDA6 05-07-2006 09:24 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
Originally Posted by slo_crx1
That's exactly how my apexi twin chamber works. When i used to get compressor surge it kinda made a chu chu chu chu sound when you'd let off the throttle, just really fast though.
the chuc hu chu chu sound is compressor surge lol

lumpenst 05-09-2006 06:03 AM
Re: Greddy Type S BOV....2 vacuum lines?
 
for lower boost setup do you connect only the lower one or both of the nipples?

turboDA6 05-10-2006 03:20 AM
Re: Greddy Type S BOV....2 vacuum lines?
 
Originally Posted by lumpenst
for lower boost setup do you connect only the lower one or both of the nipples?
both, top for vac source, bottom to pre-throttle body, jus like the wg comes factory, like the nipple on the compressor housing. no vac source should go to the bottom one or else it wont blow off. only pre-throttle body positive pressure

jacob_kohler 05-10-2006 08:49 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
Im thinking about buying a cheap knock off Greddy tyoe s but is it worth it? I might buy a used Real one.

turboDA6 05-10-2006 09:14 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
i hear there almost the same, if you dont boost much, go for it. if your a power monster then get a real bov, not even a type s

Donald125 05-10-2006 09:30 PM
Re: Greddy Type S BOV....2 vacuum lines?
 
Originally Posted by turboDA6
i hear there almost the same, if you dont boost much, go for it. if your a power monster then get a real bov, not even a type s
AKS dump trunk bov :8

T-RO 05-12-2006 07:51 AM
Re: Greddy Type S BOV....2 vacuum lines?
 
I bought one of there BOV's too. They sent me a carbon fiber one though (I wanted a Purple one). I drilled a hole in the charge piping and JB Welded a brass fitting on there for the 2nd vac line.


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