Ajusting BOV
#1
John Deere Drifter
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Ajusting BOV
Just got a Blitz SS BOV and I am not sure on the best setting for the spring tension. How do I find the sweet spot?
#2
Engine, Not Motor
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I adjusted mine (an Apex'I) unit almost as hard as I could. Takes 6 PSI to open the valve. My opinion is that this is not enough pressure to harm the turbo should the valve not open, and I am not running "too soft" a setting and loosing boost when I shift at 1-4 PSI.
#3
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That seems way to hard to me.... if 6 psi isn't to much to damage the turbo than why do all factory cars with stock boost at 5-6 psi have BOV's??
I'd say set it so you can hear it open if you get boost up to about 3 lbs and let off.
I'd say set it so you can hear it open if you get boost up to about 3 lbs and let off.
#4
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Just my opinion. Probably alot harder on the turbo then a lower setting, but everything is a tradeoff. I didn't want to bleed more boost then necessary. Besides, my turbo is getting hybridized anyway, so I wasn't too worried about it's longterm health.
#5
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First, do a rev test with the BOV if you will vent to air. After a few aggressive revs, the valve should close quickly on it's own power. If it does not close or takes too long, then the valve is set too softly. Then do a test drive to listen and be sure that you are getting proper pressure release.
#6
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The BOV's responsibility is to prevent compressor surge.  Adjust it until you get ZERO compressor surge.  You can run it lighter in the street, but if you're racing (on the track) I tighten mine all the way down.
-Ted
-Ted
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