bov placement

jtmp3

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2002 Lexus IS300 1997 Toyota 4runner
So what's the verdict on bov placement? I am doing a custom fmic on my MP3 and had to delete the foglights, so now you can see my i/c pipes through the holes and want to put my HKS SSQV right in front where you can see it, I thought it might look and sound better too. My friend has his that way in his supra but didn't know if it would be alright to do it on our cars?
 
jtmp3 said:
So what's the verdict on bov placement? I am doing a custom fmic on my MP3 and had to delete the foglights, so now you can see my i/c pipes through the holes and want to put my HKS SSQV right in front where you can see it, I thought it might look and sound better too. My friend has his that way in his supra but didn't know if it would be alright to do it on our cars?

I was told that you want it close to the turbo, as opposed to close to the TB like most people have. So I guess from what you are saying, having down there would work, as long as it's on the hot side. I could be wrong, I don't run a BOV I have a BPV, but this is just what I was told.
 
This is the way I look at it. When the throttle body closes, you want the bpv/bov to be close so that the air surge doesn't have to reflect back through the piping, and intercooler before it is released.

I would think that its better to have the bpv/bov on the cold side for this reason. Resulting in a quicker response.

I'm open to other ideas if they are explained of course.
 
yeah that's what I thought but I made custom pipes for my fmic and it was a b**** getting the front bumper on and don't want to take it off again. So I am leaning toward the hotside but I've seen the posts and I think it's a toss up.
 
weirdzen said:
This is the way I look at it. When the throttle body closes, you want the bpv/bov to be close so that the air surge doesn't have to reflect back through the piping, and intercooler before it is released.

I would think that its better to have the bpv/bov on the cold side for this reason. Resulting in a quicker response.

I'm open to other ideas if they are explained of course.

MPNick and MAM both run it on the hot side, they say it's better there. Maybe they can give a better explanation.
 
I got mine on the hotside. The logic that I have gotten is that the air on the hotside has not been cooled yet. So instead of getting rid of good cold air, use up that hot air that hasn't been cooled yet.
 
If i decide to put it near the tb can i correct the stalling with the mpi?
 
The MPI can't correct that. That is caused by you releasing metered air. The only way around is to put the MAF on the TB pipe with the BOV before the MAF.
 
It's settled bov on hot side 10 inches from turbo and maf 10 inches away from tb.
 

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