Grego.77 Member 195 Member For: 9y 4m 30d Gender: Male Location: St Clair NSW Posted 30/10/15 07:28 PM Share Posted 30/10/15 07:28 PM Gday guys this has probably been answered a thousand times but cant seem to find the thread. My BOV which is a stock OEM lets boost out at idle and low rpms. Is this normal? Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,673 Member For: 15y 11m 2d Gender: Male Location: adelaide hills- 'race air' central Posted 30/10/15 08:40 PM Share Posted 30/10/15 08:40 PM they can jam open. I just had to replace mine as it wasnt holding boost. I think they are only rated to 12 psi or something anyway? mine held 20 ok for quite a while though... 1 Link to comment Share on other sites More sharing options...
OZYWALKER XR50T Gold Donating Members 2,795 Member For: 10y 11m 17d Gender: Male Location: Western Sydney Posted 30/10/15 08:57 PM Share Posted 30/10/15 08:57 PM Yea mine did that, probably running vacuum at lower rpm and pulling it open. 1 Link to comment Share on other sites More sharing options...
El Andrew Gold Donating Members 2,019 Member For: 8y 11m 27d Gender: Male Location: Canberra ACT Posted 30/10/15 09:12 PM Share Posted 30/10/15 09:12 PM What does it do at higher rpm? You wouldn't normally have boost at idle. Is it leaking air at idle? Link to comment Share on other sites More sharing options...
Wilko16 Donating Members 1,672 Member For: 16y 4m 28d Gender: Male Location: Melbourne Posted 30/10/15 11:09 PM Share Posted 30/10/15 11:09 PM They open in vacuum, And you have full vacuum at idle Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,291 Member For: 16y 8d Gender: Male Location: Melbourne Posted 01/11/15 07:54 AM Share Posted 01/11/15 07:54 AM (edited) You definitely don't have boost at idle or low RPM Unless something else is spinning your turbocharger, of course... Edited 01/11/15 07:56 AM by k31th Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 11y 11m 14d Gender: Male Location: Central Coast Posted 02/11/15 10:34 PM Share Posted 02/11/15 10:34 PM Antilag is fun Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,291 Member For: 16y 8d Gender: Male Location: Melbourne Posted 02/11/15 10:41 PM Share Posted 02/11/15 10:41 PM Agreed. A tad destructive, though.. Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 11y 11m 14d Gender: Male Location: Central Coast Posted 02/11/15 10:42 PM Share Posted 02/11/15 10:42 PM Sounds good though Link to comment Share on other sites More sharing options...
Grego.77 Member 195 Member For: 9y 4m 30d Gender: Male Location: St Clair NSW Posted 09/12/15 12:39 PM Author Share Posted 09/12/15 12:39 PM While on the dyno It was hissing a bit of air, had an old $30 Chinese bov sitting around which fitted straight up and has solved the problem. The Chinese 1 seems to have a spring which is a bit to tough and now at low boost deceleration the turbo is making that anoying flutter sound. (very light throttle) But works when open so I guess it couldnt be doing too much damage. I hope Link to comment Share on other sites More sharing options...
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