NorthwindHost

Ok, basically I was looking into getting an aftermarket BOV probably from APEX. ( the red matches my car. )

Anyway, I checked all throughout the service manual ( which is all I got from the car ) but I cannot seem to locate where the BOV is. I am thinking its under the black box where the intake is?

Can someone point me in the right direction?

Also, I read up somewhere the stock BOV is actually better? How would I actually make it so the pressure buildup goes out instead of back into the system?

TwinTurboRX-7

just vent the stock BOV to the atmosphere..... its loud as hell and yeah its ****** cool.

tBoWzeR

yeah a vented bov would be your smartest/cheapest move, plus its sounds friggin sick.

Quickfini

iTrader: (6)

NorthwindHost,

the BOV is the little black valve looking thing attached to the black air box. It should be attached to the intake by a small 1" hose.

mr_ouija

www.all-rotor.com/rx7vids

I have 2 videos there of my own. You can hear the stock bov and that's at 10psi if I remember right.

WaLieN

It should say "ABV" on it (or something like that). It's the one below the one that says "CRV". To cap off the 1/2" ID tube that goes into the airbox, goto home depot to buy a plastic plug, and use the stock clamps. The whole project should cost you $.59, not including gas. Have fun!

Mahjik

iTrader: (1)

Changing the BOV on a stock to mildly modded car is the same as changing the shift ****: It's not going to change performance in anyway but that doesn't mean you won't like the difference. I have no idea why people freak out when you want to change, however they'll change out their shift **** or other non-performance parts in a heartbeat.



The main difference is the sound. The Apexi sound is different from the stock vented without a doubt. That is the Apexi BOV mounted in the stock location above. It is possible to install an aftermarket BOV and hurt performance (i.e. the BOV starts leaking or something). However, that rarely happens but is a possibility.

93BlackFD

apexi sounds like crap, i mean, you can't hear it...

it seems to me that most people buy a BOV to hear it...

Mahjik

iTrader: (1)

I hear mine (as well as everyone else who as taken a ride in my car) just fine.

NorthwindHost

Apex in my opinion looks the best as well.

Well, to save money for now, ( side projects going on like getting my stupid speaker mount ), I would want to look into venting the current BOV.

Does anyone have a step by step on how to do this?

Also there is a black box coving the air filter at this point which I believe is stock?

RotorMotor

iTrader: (5)

isnt there one bov for each turbo? what is the brown one back by the turbos for that also goes to the airbox?

bus

This is a stupid question, but I just want to make sure. Walien The plug will be to plug the tube that goes to the airbox. right.

WaLieN

Yes -- make sure you don't lose the two stock hose clamps, as you will use it to clamp the plug to the tube and the tube to the airbox.

EviLPeNeviL

iTrader: (2)

Oh boy I love BOV questions........

The stock BOV is located right behind/near the stock air intake box. As for performance, I keep reading that boosting near stock, the stock BOVs will work just fine. Sounds great and looks funny......


-Dan

Silvia_S13

HKS = king of blow off valves. valve type instead of piston type so they cannot leak. can change inserts to change the sound too

RotorMotor

iTrader: (5)

so are there 2 bov's or 1? what is the brown one farther back if its not a bov?

NorthwindHost

I don't know much about turbo cars especially the rx7. All I know is basic repair and electical wiring.

It doesn't mean I don't want to learn. =)

So anyway, I took of the black box covering everything, now what?

I think I located the BOV but how would i vent it into the atmosphere and not back to the turbo's

Shinobi-X

Just remove the rubber hose from the BOV, and also from the end closest to your airbox. Cap off the side on the airbox itself where the hose used to meet, and you're done. It should look exactly like the first pic of this thread, and you will hear the difference to confirm it.

NorthwindHost

hehe, anyone know the size of the hose that I should buy a cap for, and where should I get it?

Mahjik

iTrader: (1)

Try a 2-liter plastic pop bottle top on the back of the airbox.

Shinobi-X

You can always take the hose in and size it accordingly for measurements.

NorthwindHost

hey you think the bottle cap would just like fly off?

Mahjik

iTrader: (1)

Why would it? The airbox isn't under pressure.

Mean Machine

Does anyone have a before pic of that area maybe with some arrows (wishful thinking) so i can compare them my shop manuals on order so til then im workin with pictures haha. Some one mentioned that the BOV says "ABV" on top of it, is this correct? and does the airbox need to be removed in order to access the BOV? plannin on doin this tomorrow thanks for your help

NorthwindHost

It doesn't always need to have pressure to fall off. =P. I am more worried about the sizing and when i hit a bump, ::clunk clunck::