Recommend the best BOV for my boost levels.
#82
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 857
Something is not right. At idle, my single piston opens with the blue spring, which is actually the one I'm staying with. Closes at part throttle on accel, but opens correctly on throttle lift.
#83
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 857
Oh, and don't anneal the spring. It will loose its properties and will either not have spring action, will break with use, or both. Cut and re-grind if you must, but better, find the problem.
#84
Do you have one of those quarter sized spacers in there or something? Something you can try just for the hell of it is to remove the small plastic piston temporarily and see if you get surges.
It's also possible that your line might be getting pinched or even closed shut from the vacuum.
3/16 line is fine. That's not a problem.
It's also possible that your line might be getting pinched or even closed shut from the vacuum.
3/16 line is fine. That's not a problem.
#85
I talked to Forge this morning. They said what I'm hearing is not compressor surge but BOV flutter at lower PSI's. I am a bit skeptical because I have been warned many times that lots of people think they have "cool" BOV flutter but its really compressor surge, so I took a quick video (give the link a try, not sure if it will work).
#86
I talked to Forge this morning. They said what I'm hearing is not compressor surge but BOV flutter at lower PSI's. I am a bit skeptical because I have been warned many times that lots of people think they have "cool" BOV flutter but its really compressor surge, so I took a quick video (give the link a try, not sure if it will work).
Listening to it.. and it does come off as a surge and not bov flutter.
Your vac source may not be strong enough to hold it open. Also if you're shifting with part throttle you could be taking away vac from your source and the bov never fully opens. And this bov is not adjustable is it?
Are you able to snap a pic of the engine bay? I'd like to see your vac source and where the hose is connected.
And per forge's site on this bov...
Made from billet aluminium, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound when the throttle is lifted.
Last edited by Girz0r; 10-09-2014 at 03:28 PM.
#97
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 857
Picture is supposed to show where the Vac/boost line is connected at the manifold, as well as the BOV. Also some reasonable level of photo quality is preferred. People want to help, but you're not cooperating.
*edit* you slipped. Some more pics in. I'm still trying to follow the hoses with some lack of success.
*edit* you slipped. Some more pics in. I'm still trying to follow the hoses with some lack of success.