BOV flutter or surge?
#1
BOV flutter or surge?
Ok, I thought I'd post this here to get some more opinions. Running anything above 5psi and letting off the throttle results in 5-8 "flutters" The more boost, the louder they are.
I am running a supra recirculating BOV and I tried a Bosch one as well with the same results.
I am recirculating into the tube between the air filter and compressor inlet. I have a megasquirt so no AFM. When I had my VAF in there it didn't make the sound, it only does it now once the VAF was removed for the megasquirt install.
The BOV hose is around 3/4 inch inner diameter.
My question is - do stock recirculating BOVs make a fluttering noise? Both BOVs I tried were stock recirculating ones.
Thanks for any input.
I am running a supra recirculating BOV and I tried a Bosch one as well with the same results.
I am recirculating into the tube between the air filter and compressor inlet. I have a megasquirt so no AFM. When I had my VAF in there it didn't make the sound, it only does it now once the VAF was removed for the megasquirt install.
The BOV hose is around 3/4 inch inner diameter.
My question is - do stock recirculating BOVs make a fluttering noise? Both BOVs I tried were stock recirculating ones.
Thanks for any input.
#6
The miata doesn't have lots of vac nipples - I found the same thing, until I removed the brass shim/disc? spring seat? from inside the BOV, and tee'd it into it's own vacuum nipple.
I only get a little bit of flutter on really light boost, but no flutter on higher boost - just the pcsssht sound
I only get a little bit of flutter on really light boost, but no flutter on higher boost - just the pcsssht sound
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