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View Full Version : just need a clear answer!!!


eastcoastS14
01-03-2007, 02:45 PM
ok so i keep serching and ive talked to different people and i really just need some clear answers about my HKS BOV right now its vented to atmosphere and i am having issuses with the car stalling every time i come to a stop or am driving and press the clutch to go into neutral. I like my bov and i want to keep the sound. I am just confused because it seems like most people are recirculating theres but there are also a lot of posts on this site about how people love the sound of theirs im reading all different things some say that ill have to recirc it and lose the sound which i really dont want... a shop told me to get rid of my HKS ssq and that a different bov would fix the stalling issues and still let me vent it i was about to buy an hks eids to electronically correct the air flow but the same shop told me that they really dont work too well. so what are my options if i want to keep the sound there has to be some way since there appears to be plenty of 240 owners who talk about the sound theres makes and i already know someone will post "do you want youre car to run right or make a chirping noise" well i want the chirping noise damit so post somethin if you can help

HalveBlue
01-03-2007, 03:33 PM
Your grammar sucks.

But for the sake of education...

No atmospheric BOV is going to be effecient when it comes to running your engine. Why? Because our cars are equipped with MAF sensors.

The ECU adjusts fuel based on the amount of air intake registered by the MAF (amont other things). When you vent that air to the atmosphere your ECU doesn't know about it and assumes that previously calculated air/fuel mixtures is still accurate.

So to solve your conundrum, you could get an annoyinlgy loud BOV, recirculate it, and hope the noise is still loud enough.

Make your post more legible next time.

MELLO*SOS
01-03-2007, 03:41 PM
Convert to MAP based EMS, problem solved

eastcoastS14
01-03-2007, 03:49 PM
As you may presently yourself be fully made aware of, my grammar sucks lol

It looks like I'm going to end up recirculating it unless i can get a better solution. You say recirc it and hope the noise is still loud enough, I was under the impression that if i recirc it i would lose all the sound no matter what. Also, to save me the trouble of searching, what would it cost to convert to MAP? I already knew that stuff about the open air bov and MAF thats why i was looking at the HKS EIDS, but does that mean that everyone in this forum who is talking about how they love the sound of their bov is running MAP or just driving around with their car stalling at every stop sign??

eastcoastS14
01-03-2007, 03:51 PM
^^ key point in all this is looking for a cheap solution btw. not looking to get into aem ems or apexi power fc or anything that is gonna drain my bank account

johngriff
01-03-2007, 03:54 PM
thank you!

legnth!!

chibo
01-03-2007, 04:33 PM
I ran HKS EIDS on my old sr20 with a SSQV, never had a problem. Also ran it without EIDS and it never stalled or had issues... finally I recirc'd it right into the intake and I'll tell you right now that at least 90% of the sound was still there.

Slidin240Wayz
01-03-2007, 04:36 PM
If you are being cheap, then recirculate or go with a blow through setup which you can search for.

If you want to do something right, save money and convert to a MAP based system.

Carlos

chibo
01-03-2007, 04:38 PM
If you are being cheap, then recirculate or go with a blow through setup which you can search for.

If you want to do something right, save money and convert to a MAP based system.

Carlos
Agreed, I was able to pull off a blowthru with the stock MAF and some cutting of pipes but no one recommends it (neither would I).

rim_bender
01-03-2007, 04:39 PM
I have never recirculated a BOV on my STi, about 6 differnt SR's and a few other cars. They are all MAF systems and i never had an issue with stalling

unless jsut where you live has something to do with it to or driving style, idk

jsut adding my experiance

Phlip
01-03-2007, 04:41 PM
this is a clear answer

chibo
01-03-2007, 04:44 PM
I have never recirculated a BOV on my STi, about 6 differnt SR's and a few other cars. They are all MAF systems and i never had an issue with stalling

unless jsut where you live has something to do with it to or driving style, idk

jsut adding my experiance
I've got a friend with a pretty modded (everything except turbo - including cams, stroker, etc) Evo9 and we took the stock bov out of the intake pipe to vent it to atmosphere and it didn't have any stall problems but was quite obviously slower.

the bee guy
01-03-2007, 05:50 PM
If you want a cheap solution, change your driving technique. I had the same problem on my MKIII Supra with an open atmosphere Greddy Type S. Dont be in a high RPM and then just step on the clutch and let the RPMs fall, it'll stall. Instead, stay in gear and slow down as usual until your RPMs are lower and THEN step on the clutch.

If you want another solution, i believe the Apex'i AFC or AVCR or one of the other piggy back systems, has a setting in it where you can tell it you are running an open at. BOV and it will fix the stalling issues.

(All the info I provided was based off my experience with the Supra which used a MAF also, so I THINK the info would work with an SR20 also but not 100% sure)

kuramaya
01-03-2007, 06:52 PM
SAFC II with Decel Air function set will fix the problem, I did it for almost 2 years, also I have posted directions on how to set that on here.

So will running a Power FC with Additional Boost Sensor and a good tune.
Late
Daryl

johngriff
01-03-2007, 08:06 PM
we have run lots of open vent bov's on stock cars. Work good when close to turbo, work bad when close to throttle body. Where is your bov located?

kuramaya
01-03-2007, 08:20 PM
we have run lots of open vent bov's on stock cars. Work good when close to turbo, work bad when close to throttle body. Where is your bov located?

I would say on his Hotpipe, gurantee it.

punxva
01-03-2007, 10:38 PM
get a safc and use the decel air function, problem solved

!Zar!
01-03-2007, 11:06 PM
I didn't read half the stuff said.

reason your car is shutting off is due to a bad tune, and you are running atmospheric.

whoever you are talking to knows jack shif if they said the ssqv sucks.

fix you problem easy by purchacing $20 worth of parts and recirc it.

chirping noise? wtfnub.

if you must, rev the gas a lil bit every time you come to a stop.

eastcoastS14
01-04-2007, 07:37 AM
ok thanks for everyones input you guys have given me some solutions to consider and no bjorkluv my bov is on the cold pipe right before the tb i did change my driving techniques and would just kick the gas at a stop and use the clutch to slow down all that stuff its just a pain in the ass i think i may just end up recircing for now and end up buying a safc and use the decel function like it says. i dont think this is due to a bad tune i am running an enthalpy rom tune ecu and i already contacted them and the shop that built my engine anyway thanks for the help

johngriff
01-04-2007, 12:26 PM
HAHA i win!

Move to hot side FTW!

ewww tuned rom! FTL!