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View Full Version : Would this be a solution to solve the stalling problem when venting to the atmosphere


Got_boost02
10-24-2003, 12:17 PM
hey, i came across this link just searching around the net. i read through it, and it kinda make sense, so i dont see why it wouldnt work?? does anyone else have any thoughts? maybe this has already been discussed but i am not too sure about it?? just thought id add some info.

link: http://www.geocities.com/kilruf/bov.html

Sazabi
10-24-2003, 12:34 PM
That is all the reason why I have the HKS SSQV. Same difference. To fix stalling problem make love to shampoo!

Striker187
10-24-2003, 12:49 PM
someone did this on their msp a while back. i forget who it was. he said it worked fine. i'm not too sure about it but i guess it could work. i'll have to do a little research first.

Spooled
10-24-2003, 03:17 PM
Actually, I think that you'll have stalling problems anyway. The reason why your car stalls with open vent BOV's is that the MAF has already accounted for the air that you are venting off into the atmosphere, so it adds more fuel than it needs too. The leaking may will have something to do with it, too, so you will have better luck than someone who doesn't have a sequential BOV like the HKS.

That's a cool little DIY article, though. I think I might try that with my BPV. It would be the same if you unhook the return line going back into the intake, plug the hole left in the intake, then add a one-way valve to the output hole on the BPV. Just an idea...

slug420
10-24-2003, 03:39 PM
is it THAT much air that is being lost when you vent to atmosphere that the gas the ECU is adding to accomodate is is more than the amount of fuel leaned out by the reflash?

It really seems to me like a flashed MSP with BOV would just feel like a unflashed MSP rather than stall from being flooded

Flat Black
10-24-2003, 03:45 PM
Originally posted by Sazabi
That is all the reason why I have the HKS SSQV. Same difference. To fix stalling problem make love to shampoo!

The Apexi Twin Chamber does the same thing and it sounds alot better.

Striker187
10-24-2003, 04:16 PM
i emailed robert at 935motorsports. he told me it would work but it would cause poor flow through the valve (which makes sense to me).

Got_boost02
10-24-2003, 06:44 PM
well, i tried this this afternoon.......sadly, i had bad results. i went to lowes and bought the one way valve. installed it on the intake where the bpv wouold normally hook up to. it seemed that the problem was that the engine would creat enough vacum to open the valve. i copuld feel no vacum going through the valve when i put my hand over it. however, when i put my have over the bpv, while it was venting(at idle) i could feel it discharging a little bit of air. when i covered it, after it would discharge, it seemed to run fine, no stumble in the rpms and no stall.. so what i am thinking is, if i could find a check valve that would remain completely open under very low to vacum conditions, and completly closed under high pressure situations, along with a BOV that does NOT leak under idle conditions, it may just work. i dunno, its a theory, but id like to prove it either wayu, i just need to find a check valve that operates like this.......we'll let you know!!

Spooled
10-24-2003, 08:50 PM
Originally posted by Got_boost02
well, i tried this this afternoon.......sadly, i had bad results. i went to lowes and bought the one way valve. installed it on the intake where the bpv wouold normally hook up to.

Got_boost02, are you saying that you put the valve on the hole that was left after disconnecting the BPV recirc line from the intake. You should just plug the hole in the intake, and then put the one-way valve on the BPV recirc hose so that air can go out, but not back in.

brianmcd
10-24-2003, 09:07 PM
I don't see how that would work, because it doesn't fix the problem with the MAF thinking it's getting more air. It seems like that might be to fix a different problem with not so good BOVs.

Spooled
10-25-2003, 12:41 AM
You're right, it doesn't fix the problem entirely. But if he is flashed and fixes the vacuum leak, then he will be able to get by a little better than others that have a huge BOV that leaks and no flash. The flash only helps the A/F ratio a little, but the advanced timing will let your engine burn the rich mixture easier and keep it from stalling. This is just a theory based on the way engines work, but I'd like to test it myself. I think I'll stop by Lowe's and look for a one-way to fit my recirc hose tomorrow.

03MSP
10-25-2003, 01:16 AM
It does work, someone put a thread on how to do it at mx6.com, but the thing is, just like Spooled said, the MAF has accounted for the air, it probably won't make your car stall, but you will give a nice little puff of black smoke, as with any BOV, when you shift or let off the gas.

There also is a chance it MIGHT stall, I had a 1st gen DSM bypass valve converted into a BOV on my MX-6, because when it let out all the air, it went way rich and the RPM's dropped but usually caught itself and went back up.

Anyway, the thing is, venting into the atmosphere is not good for anything but sound, and I do like the sound, but having it set up that way will never yield perfect results, unless you get the hybrid BOV.

Sazabi
10-25-2003, 01:38 AM
Originally posted by Flat Black
The Apexi Twin Chamber does the same thing and it sounds alot better.

Really...hmmm, I run the HKS SSQV cause I have the wings west EVO CF hood and it's quite loud. I'll have to get an Apexi Twin Chamber from my shop guy and see the louder difference.

And you can make love to shampoo AND conditioner for this info!

Flat Black
10-25-2003, 08:30 AM
I'm making a vid of the Twin Chamber today.

Spooled
10-26-2003, 06:03 PM
I got the setup working fine. I haven't stalled at all yet, but I can tell that it gets a little rich at certain times. But this is a great way for people to see if they want to run open atmosphere before they run out and spend $200 on a BOV. I will post pics and sound clips soon!

BTW, it takes $5 in parts, 2 min. tops, and is easy to revert back to stock...

JTP
10-26-2003, 06:37 PM
Soon Soon. I really want to have mine vented to the atmosphere.

TheJohnny
10-27-2003, 05:11 AM
Need help. Want to vent to atmosphere but dont' want stall. I've searched for pics and answers and it seems like the recirculation type is the way to go. I'm not familiar with turbos at all as this is my first turbo car. But I am however familiar enough with cars to do anything to it, I just need to know what to do. I want to install the HSK SSQV ??? valve with recirculation to get the noise out of it, but I don't want the engine to stall. Let me know what to do all...thanks.

Spooled
10-27-2003, 05:03 PM
Leaving work right now to ask Mr. Loan Officer if I can afford the house that I want, then I will take some pics and video of the setup.

TheJohnny
10-27-2003, 09:17 PM
Thanks Spooled....I appreciate the help. I want to make some serious Gobble Gobble noises, well not really, just a nice big woosh, or pissssstttt would be good with me. I'm just concerned about how to do it. Thanks again. As well, not trying to thread jack, but do you know anything about this ECU Flash that my dealer doesn't know anything about.

Striker187
10-27-2003, 09:20 PM
why not go look at the vids 505zoom took. he's running the hks ssqv recirculated. that's one pissed off turkey! :D

Flat Black
10-28-2003, 11:30 AM
bump

jred321
10-28-2003, 12:24 PM
stalling isn't the problem, venting to the atmosphere for a noise is the problem, stalling is a result of this problem.

Flat Black
10-28-2003, 05:14 PM
I could honestly give a fuck less. Just post the fix when it happens.

jred321
10-28-2003, 05:28 PM
fix to what? the problem is venting, not stalling while venting, stalling is a result of the problem.
don't do it. fix #1.
switch to a map sensor. fix #2
get something that alters the signal the ecu is seeing to account for the lost air. fix #3

Spooled
10-29-2003, 06:38 PM
OK guys, here's what I was talking about. I put this on and drove it hard, soft, left, right, up, and down and never stalled once. My car is flashed and I am running about 8 psi at the moment with no other mods.

http://eighthundredpoundgorilla.com/valve/

It cost me about $5 at Lowe's Hardware and is in the plumbing section. The sound is MUCH louded and cooler. The best part is that it takes 2 seconds to install it and you don't need anything else. Here is what you do:

1. Disconnect the recirulation hose from the intake.

2. Plus the hole left in the intake.

3. Slide the end of the valve (labeled in my pics) over the end of the hose that you just detached so that the ait can go out, but not back in.

4. It should be a good fit, but if you are going to keep it on, make sure that you attach it with something that will hold.

Sorry I don't have any pics of it on the car. I took it off since I am selling my car. I have been driving a company car, also, otherwise I'd just run out and put it on really quick.

RX-KEVIN
10-29-2003, 08:19 PM
my car has over 20,000 miles on it at 14 psi and i have had a hks ssq open venting for the last 17,000 miles and have probably stalled it twice (the first two times I shifted) big deal you will learn to drive around the stalling problem

NJMAZDASPEED
02-10-2004, 11:44 AM
OK guys, here's what I was talking about. I put this on and drove it hard, soft, left, right, up, and down and never stalled once. My car is flashed and I am running about 8 psi at the moment with no other mods.

http://eighthundredpoundgorilla.com/valve/

It cost me about $5 at Lowe's Hardware and is in the plumbing section. The sound is MUCH louded and cooler. The best part is that it takes 2 seconds to install it and you don't need anything else. Here is what you do:

1. Disconnect the recirulation hose from the intake.

2. Plus the hole left in the intake.

3. Slide the end of the valve (labeled in my pics) over the end of the hose that you just detached so that the ait can go out, but not back in.

4. It should be a good fit, but if you are going to keep it on, make sure that you attach it with something that will hold.

Sorry I don't have any pics of it on the car. I took it off since I am selling my car. I have been driving a company car, also, otherwise I'd just run out and put it on really quick.Hey spooled...what did you get from loews to do this??? Your link wont come up.

Notorious
02-10-2004, 12:41 PM
anyone tried raising the idle???

Black Majik MSP
02-10-2004, 02:30 PM
Solution to stalling when venting to atmosphere = buy Forge BOV :D

Got_boost02
02-10-2004, 06:28 PM
or run a dual bpv/bov setup :)