Blow off valve killing car

[John1218360]

So i got a Turbo Xs hybrid bov and installed it on my 2015 wrx at idle it dies right after i was in boost anyway to fix this?

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[standardtranny]

youve got a boost leak check your clamps

[WMTwrx15]

Originally Posted by John1218360

So i got a Turbo Xs hybrid bov and installed it on my 2015 wrx at idle it dies right after i was in boost anyway to fix this?

Yes 2 ways

1) speed density tune (which unless full bolt on and big turbo is pointless for just a bov

2) remove it and replace with 100 percent recirculating

[hengyu408]

Add more spacers

[tegxsi]

Go back to stock

[gn4rwhals]

Is this the "washer" BOV that makes this board cringe?

I think you need to use all the washers then, also a tune for it would help immensely.

[WMTwrx15]

Originally Posted by gn4rwhals

Is this the "washer" BOV that makes this board cringe?

I think you need to use all the washers then, also a tune for it would help immensely.

If it’s the turbo Xs one I would remove it immediately

Why pay 4-500 for an sd tune you don’t need for a noise maker?

[noobultimatum]

FWIW im making 410whp/400wtq on e60... stock bpv. Specifically, my original bpv -- 107k miles

[subaru_gc8]

Originally Posted by standardtranny

youve got a boost leak check your clamps

uhh no. so what is happening is, why your vent to atmosphere blow off valve you are loosing metered air and it is going super rich and making your car die. get rid of that thing and just go with the stock valve.

[Rexy18]

Originally Posted by noobultimatum

FWIW im making 410whp/400wtq on e60... stock bpv. Specifically, my original bpv -- 107k miles

Stock bottom and if so how many miles on such setup (400/400)?

[gn4rwhals]

Stock BPV gang for life, unless you are big turbo pushing north of 30 psi stock BPV is fine.

[noobultimatum]

Originally Posted by Rexy18

Stock bottom and if so how many miles on such setup (400/400)?

built block. Stock heads.

5k miles on this set up so far -- most of it on e60. Used 93 when had some longer highway trips for the mpg swagz.

[standardtranny]

Originally Posted by subaru_gc8

uhh no. so what is happening is, why your vent to atmosphere blow off valve you are loosing metered air and it is going super rich and making your car die. get rid of that thing and just go with the stock valve.

don't tell me, ive got the cobb lf bpv

[liltonywrx]

I had this bov for a few months, at first this was happening to me too, but then I ran it with 5 washers and it was perfect.

[basyager]

if you use a BOV on this engine and think its fine just log out from Nasioc go on amazon grab a NEON kit and go post on facebook group or something..

[noobultimatum]

Originally Posted by basyager

if you use a BOV on this engine and think its fine just log out from Nasioc go on amazon grab a NEON kit and go post on facebook group or something..

Unfortunately, ^THIS x100

[basyager]

Originally Posted by noobultimatum

Unfortunately, ^THIS x100

Hell yea brotha! I love that I can be a mean ******* on here as long as Im right..

[WMTwrx15]

Originally Posted by basyager

if you use a BOV on this engine and think its fine just log out from Nasioc go on amazon grab a NEON kit and go post on facebook group or something..

I use a greddy type rs full vent to atmosphere...

Mine doesn’t stall, run rich, or anything...

Why you ask, because it is tuned appropriately for the modification...

All these problems come from inappropriate modifications for the level of tuning...

To say that using a bov other than stock is not appropriate with this engine is simply incorrect..

You must have the appropriate tuning for your modification..it’s thAt simple...

Want to run a bov..you need speed density tuning, with that comes a price..pay to play just like everything else in life..

[noobultimatum]

Originally Posted by WMTwrx15

I use a greddy type rs full vent to atmosphere...

Mine doesn’t stall, run rich, or anything...

Why you ask, because it is tuned appropriately for the modification...

All these problems come from inappropriate modifications for the level of tuning...

To say that using a bov other than stock is not appropriate with this engine is simply incorrect..

You must have the appropriate tuning for your modification..it’s thAt simple...

Want to run a bov..you need speed density tuning, with that comes a price..pay to play just like everything else in life..

Not denying the principle here of "pay to play" but what is the worth-to-cost? Was the change from BPV to BOV purely for the "woosh" What kind of gains were made, if any, from swapping to a BOV? Are there more complications due to this system change and what is the probable risk that the complications will cost more mula later? How soon is later? Are there preventative measures we can take?

I agree with doing what you want with your car. The problem is the assumption by too many that parts can be swapped in and around "because they do the same thing".

My basic understanding is that BPV allow for better throttle response while BOV means you start at 0 psi EVERYTIME you lift off the throttle thus having to deal with the turbo having to work more again to generate the desire boost.

BOV seems to be the best solutions to high HP turbo builds where the "stock" bpv or regular bpv will not be as reliable --- apparently there are high-flow BPV out there tho.

For our system -- FA20dit -- the only reason to run a BOV is for the noise. More power to you if that's what you want, but as you stated... you must tune for it.

[WMTwrx15]

Originally Posted by noobultimatum

Not denying the principle here of "pay to play" but what is the worth-to-cost? Was the change from BPV to BOV purely for the "woosh" What kind of gains were made, if any, from swapping to a BOV? Are there more complications due to this system change and what is the probable risk that the complications will cost more mula later? How soon is later? Are there preventative measures we can take?

I agree with doing what you want with your car. The problem is the assumption by too many that parts can be swapped in and around "because they do the same thing".

My basic understanding is that BPV allow for better throttle response while BOV means you start at 0 psi EVERYTIME you lift off the throttle thus having to deal with the turbo having to work more again to generate the desire boost.

BOV seems to be the best solutions to high HP turbo builds where the "stock" bpv or regular bpv will not be as reliable --- apparently there are high-flow BPV out there tho.

For our system -- FA20dit -- the only reason to run a BOV is for the noise. More power to you if that's what you want, but as you stated... you must tune for it.

I personally like the sound..no gains expected or made...

I was sd tuned due to big turbo maxing out the maf so I just unplugged the recric I have the recric kit so I can go back..but I agree with you..post maf airflow mods must be properly tuned..

If the op wants the car to run right..retune or remove

Simple as that

[John1218360]

Update: i left it on there and the csr runs fine now just had to get used to it i guess? It’s definitely running rich as it pops after it vents

[EvaUnit01]

*Raises Hand*

Team, I think the biggest question that should be asked, since it wasn't stated by the OP:

Did you just install it and that's it, or did you get an E-Tune/Dyno Tune to compensate?

If it's the first, then merely slapping a BOV is not advised, and you should be tuned to Speed Density to take advantage.

[WMTwrx15]

Originally Posted by John1218360

Update: i left it on there and the csr runs fine now just had to get used to it i guess? It’s definitely running rich as it pops after it vents

That’s not normal and will be a detriment to your cars over health in the future, many people responded to you and told you how to properly set the car up for that valve

Good luck my friend and safe travels

[brianthomp80]

moved