Aftermarket BOV on a CA

[DC2 GSR]

I was just wondering what the tricks are to running an open to atmosphere BOV on a CA18DET with a MAFS. Will this create idle or surge problems? Would you run into mixture problems?

Thanks

[themadscientist]

It will go rich and likely backfire on shifts under heavy boost and stumble possibly stall if you release the throttle from full throttle coasting to a stop. A mild nusiance, you can quickly learn to drive around it, redirect the blowoff back into the pipe LEADING TO the turbo, NOT THE PIPE THAT'S PRESSURIZED of get a HKS idling stabilizer. I like it like it is. Whoosh, Pop!

[240sxrunner]

I would never get a BOV that releases the pressure to the air. I would get one that would lead the air back into the intake. More power then no bogging down. My brothers DSM did that for while till we took it off

[DC2 GSR]

Do most people live with the richness and bogging/stalling problems? Every aftermkt BOV I've seen (on Ebay for example) for a silvia vents to atmosphere (HKS, Greddy, Blitz, etc..). factory DSM BOVs vent back to the intake (can't see you getting any more power out of this because you route it back into the turb inlet), but many people seem to use aftermkt ones as well. Do you need to switch to a MAP setup? (My turbo civic works well with on open BOV because intake pressure reduces when the valve opens and fuel is reduced accordingly).