gcooper9

i took the air chamber off of the stock BOV so i could hear it better and my boost gauge stopped working could some one tell me why?thanks

13bturbo2

the stock bov isnt a bov, its and air bypass valve, its not supposed to make noise and you probably ended up screwing up your abv by opening it.

YearsOfDecay

What he said!!!

Welcome to the club.

RotaryEvolution

iTrader: (30)

stock ABV will also cause drivability problems on an FC by pulling it off of the intake duct. stock ABV's do not fully seat at idle or cruise and will let some air escape causing a rich condition, surging idle, backfiring, etc.

if you gutted it and put it back in place or vented to the atmosphere then you created a huge boost leak and obviously your boost gauge isn't working because you have no boost.

FDluv

is that why theirs backfire?

what can u do to fix that prob?

Kingsfan

iTrader: (12)

reconnect the bypass valve, or buy an aftermarket BOV

NZConvertible

Whatever you want to call it, fact is they all work exactly the same way and do exactly the same thing. You can't hear it normally because the noise id contained within the intake system. If you open-vent it it will make noise, but it certainly isn't going to screw it up.

Ottoman

if u plug the Hole in the intake snorkel where the BOV used to recirculate too

there's NO diff then an aftermarket BOV...

the main reason to buy an aftermarket bov is to have an adjustable spring tension, or if ur turbo is so big it's causing the stock BOV to leak... or ur putting a BOV on a non BOVed turbo car (eg. n/a to turbo conversion )

ppl who make threads like "Which BOV is the loudest" or "how can I run my BOV vented WITHOUT the problems" are doin it for all the wrong reasons

A bov was made for a reason, the "sound" is the by product not the soul purpose

if ur still running ur metering system Draw through (like stock) venting to atmposphere is not recommended.. ppl still do it, but they're just living with the "side effects"

igottafc

iTrader: (6)

^ True with that, but how much better do you feel when your just casually driving next to a "super civic" and blow-off. Im not talking about reving the engine on purpose, just boosting like you normally would if he wasnt there, completly ingnoring the fact that hes trying to get your attention while you just look ahead like his car is a taurus or somthing. Im not saying go out and get a BOV for these reasons, its just a + that comes along with the package

1987RX7guy

iTrader: (3)

Because its not meant to be a "hey look at me" valve. the boost guage line is linked with the bov isn't it? So put it back and stop being insecure about yourself.

ultradef

I run the stock BOV vented to the atmosphere and it works fine. No boost leaks, no idle problems. If you run a stock ECU it may cause you to run a little rich for a second since metered air is escaping when you blow off, but other than that you shouldn't have any problems.

1987RX7guy

iTrader: (3)

I thought the stock BOV didn't seal properly? Is yours just good? lol

gcooper9

well i just put it back on and the reasont he gauge didnt work is the hose came loose, but im going to wait till i can do EVERYTHING right b4 i do anything else. thanks

1987RX7guy

iTrader: (3)

doing things right is definately the way its supposed to be done bro!

If you want an atmospheric blow off valve buy one from ebay, atleast those are meant for that sort of operation. I have heard from a few people that open venting the stock one will cause idle problems.

ultradef

I wouldn't necessarily recommend open venting the stock BOV if you can afford to buy an aftermarket one. But I am broke, and I don't feel like drilling a hole in my nice metal intake to recirculate the stock BOV. I was just expressing my opinion (based on personal experience) it will work, since most other people's "information" is based on heresay and what they've heard from others. Your results may vary, especially with the POS stock ECU (I run a Haltech ).

TonyTurboII

If you want to use your stock BOV open aired, you need to install a one way check valve on the open ended side, and cap the hole in the intake duct. If youre doing the TID mod like I did some time ago this is almost a nessescity(sp?). Whatever your reasoning is, do it for yourself and dont worry about what other people think.

You can find the parts at a Home Depot type place.

I used a one way valve for a pool system, I cant remember exactly where in a pool filtration system it went, a hose repair kit, a 3 inch piece of hosing of whatever size the BOV and hose repair kit was, and two hose clamps.

NZConvertible

That's because you have an aftermarket ECU that uses MAP sensing instead of an AFM, so your experience is irrelevant to anyone with a stock ECU.

Wrong. The stock BOV is open at idle, so if it's not connected to the TID you have a massive air leak, a very lean mixture and a crap idle(if it even idles at all).

ultradef

Hence my disclaimer:

dennis blackstone

open vent with the home depot set up,it works fine as long as you dont have any other leak,ive had mine for three years now , every body loves the sound especialy when you take of it sound like a rocket then you hit it ,you must have 3inch down pipe, and 3inch tid mod

bikester

I did the same thing as tonyturboII, it works just fine. I used a check valve for a hose, it was like 3 or 4 bucks at lowes.

therotaryrocket

it's 3/8" inch right, i went to ace hardware and made my intake out of rubber couplers and pvc pipe then I bought a 3/4" inch check valve but i returned it because it didn't fit (stupid me). Im gonna go to lowes tomorow, also I hate that stupid pvc pipe because it is so hard to fit in there with the emmisions pump and stock belt driven fan, so I'm going to meineki for them to make me a 3" inch pipe. BTW with the stock bov vented to the atmosphere my car wouldn't idle if it weren't for the binding throttle linkage, it is also very rough however if I plug the bov with my thumb it idles well.

iceblue

Im using a greddy type RS BOV for my project b/c im runing a front mount. The stock BOV looks cheezy :-) You are fiting this with emishions HOLY COW! I am trying to run 3in intercooler piping with no emishions and im still banging my head agaisnt the wall trying to get it to fit. Hmm how did evryone ellls run there front mount piping?

dennis blackstone

Some people have that problem my 7 loves the the open vented bov its inexspensive and it works fine ,as long as you have no leaks , and you have no money it fine to use