Hks Bpv

[GhostMercury]

Who has tried the hks BPV setup from pg

http://mazda3online.web.aplus.net/product_info.php?cPath=281_160_250&products_id=1258

with it on did you guys experience any different idle or different anything but sound

[GhostMercury]

o and i want info on it being run recirc

[Nutari]

o and i want info on it being run recirc

no problems at all. Want sound clips?

[Demi]

I cant run mine in recirc, because i still dont have an intake. So heads up, it hits the stock airbox. Sounds good in VTA though!

[knowledge007]

I have the first gen, and it runs fine. What kind of info would you like?

[knowledge007]

I cant run mine in recirc, because i still dont have an intake. So heads up, it hits the stock airbox. Sounds good in VTA though!


Are you getting any CEL's for being to rich?

[trufanatic]

i have mine VTA and my car runs perfectly fine, no exhaust pops, no difference in gas mileage no nothing and its sounds great. i also have an injec CAI.

I've noticed that this has been visited many times on this forum, im 25 and have been driving turbo jap cars since i've been 12 (im from the caribbean). EVERY factory turbo car runs a bpv. skylines, gtir's, evo's even the american powerhouse srt4's integrated bov recirculates the air back into the intake system. An all of these cars modded run VTA. i think either the MS3 vendors are weary / owners are worried because the car runs STINKY RICH from the factory. i havent had an issue in the past 3 weeks running VTA, i dont expect to have an issue or any engine damage. Take my advice how you want, get your HKS and love the sound. btw, i also have the first gen hks.

[knowledge007]

I have been dying to run VTA but don't want to run to rich. Keep me posted as I think I am going to change it out to VTA soon. I getting a little sick of the recirc. I want to hear my whistle.

[GhostMercury]

sound clips would be sweet.

[trufanatic]

mmmmm, let me go outside. gonna use my camera phone but the whistle might be too loud for the mic. stay tuned

[GhostMercury]

sweet thanks

[clos561]

check it out this is my car running vta, i run in recirc most of the time but whenever i want to hear the whistle i switch to vta, it takes about 5 minutes to switch. i have the 1st gen hks

http://youtube.com/watch?v=-OumVZIRA0I

[trufanatic]

check it out this is my car running vta, i run in recirc most of the time but whenever i want to hear the whistle i switch to vta, it takes about 5 minutes to switch. i have the 1st gen hks

http://youtube.com/watch?v=-OumVZIRA0I

just noticed that you live in palm beach. i stay in lake worth but work in palm beach.

[clos561]

yea i live in royal palm beach. i work in wellington on south shore and forest hill blvd. im going to moroso 2moro you should run ur car

[GhostMercury]

does anyone have a video of the hks on recirc

[Nutari]

im going to post this and I dont want to hear any crap about my choice of music.

I actually made the video to show off the exhaust sound on the first part, and the driving down a winding mountain road for the second part.

http://i6.photobucket.com/player.swf?file=http://vid6.photobucket.com/albums/y241/Deathwater/speed3test.flv

[Demi]

Are you getting any CEL's for being to rich?

Nah no cels, i do however get pops and backfires. No stumbling. Running too rich runs no risk of damage, quite the opposite. It does however leave your tail pipe blacker than normal. Cant wait for my CPE, should clear up the problems with the popping.
http://www.mazdas247.com/forum/showthread.php?t=123687374
this is with my HKS VTA. On the pass you can hear it.

[knowledge007]

well I have the TBE and the CAI from CPE, and I threw a code for being to rich without the ems. I don't have the ems on now, but would like to go to vta??

[Drag Limited]

Nah no cels, i do however get pops and backfires. No stumbling. Running too rich runs no risk of damage, quite the opposite. It does however leave your tail pipe blacker than normal. Cant wait for my CPE, should clear up the problems with the popping.
http://www.mazdas247.com/forum/showthread.php?t=123687374
this is with my HKS VTA. On the pass you can hear it.

I'm sorry but I must correct something. The part in bold about your post is simply wrong. If you want to test it run your car extremely rich and see how long your piston rings last. I've tosted three SR20DET's and can assure you running rich is no way in hell SAFE.

Why else do you think it will throw a code if your running rich?

Also, I know most people don't care, you will lose power and fuel economy running extra rich.

[Drag Limited]

ps: I love the sound of VTA bov's and I had an old style SSQV on my 97 240sx.

[GhostMercury]

what other bov's you guys running

[Demi]

I'm sorry but I must correct something. The part in bold about your post is simply wrong. If you want to test it run your car extremely rich and see how long your piston rings last. I've tosted three SR20DET's and can assure you running rich is no way in hell SAFE.

Why else do you think it will throw a code if your running rich?

Also, I know most people don't care, you will lose power and fuel economy running extra rich.

My understanding is that there is no chance of detonation from running rich because the excess fuel cools of the combustion chamber. But i will be the first to admit that i dont know as much as i would like to. What happens exactly?

[Sierra117]

I'm sorry but I must correct something. The part in bold about your post is simply wrong. If you want to test it run your car extremely rich and see how long your piston rings last. I've tosted three SR20DET's and can assure you running rich is no way in hell SAFE.

Why else do you think it will throw a code if your running rich?

Also, I know most people don't care, you will lose power and fuel economy running extra rich.

I was under the impression that whilst running rich is not good for the car, its not exactly a horrible action either. I don't think our cars, running VTA, are running obscenely rich, but I'm still on the stocker so *shrug*.

[speed3se-r]

After getting a functioning HKS ssqv, running it vta because i could not angle the bov to the recirc. hose correctly, and over the course of 1500+ miles in VTA and getting on it everytime i drive, i have not noticed any driving issues. MPG, stalling, bucking, backfireing etc, are non existent issues. Knowing as the ms3 runs pig rich from the factory, i've cleaned off my tailpipe as often as i can, and i can not tell any difference in soot build up, and it's actually probably a little less soot to be honest, but that could be due to the intake more so than the blow off valve. Point being, I do not think that it is causing a more "rich" mixture between shifts, and if it is, i do not think that tiny bit of running rich is going to hurt that much, considering how rich the ms3 comes from the factory. Other than using my tailpipe as a way to test, I would need a wideband to confirm.
I think also that why people or the factory uses a recirc hose is the same reason why some cars have air intake resonators on their cars...to be quiet. Also, the way the hks is designed to work, the valve relies on the boost pressure to keep it shut and sealed. Most blow off valves, like the factory valve, even though difficult to push up, are already cracked open from the vacuum. If you run that in VTA, with a MAF equipped car, then that would be the same a having a loose vacuum line some where on the intake because air is entering the engine from an unknown source not metered by the MAF, and you will notice some idling issues and such.
From a performance standpoint, the air vented by the blow off valve in recirc. forces the turbocharger to keep spinning in a positive direction and between shifts. The turbocharger is already kept spinning faster and is ready to spool up, vs. VTA where once the throttle is closed, the turbo is forced to slow down, only to be accelerated by the exhaust. But just that split second could make a lot of difference. Just my opinion...

[clos561]

i noticed in vta the rpms drop alot faster when i shift from 1-2-3-4-5-6, i always thought that vta and recirc were the other way around, recirc in between shifts the turbo gets slowed down and in vta the turbo stays spooled.

[Drag Limited]

My understanding is that there is no chance of detonation from running rich because the excess fuel cools of the combustion chamber. But i will be the first to admit that i dont know as much as i would like to. What happens exactly?

While short term i'd rather run rich 100 times before i'd let my car run lean, from my understanding the fuel when not able to fully brun "washes" the cylinder walls of their lubricant (scant I know but there is oil there) and prematurely wears the piston rings. First it's mild blow-bye then you will find yourself adding a quart of oil in between oil changes and a nice blue smoke screen while driving around. The worst case would be complete loss of compression in any given cylinder.

Now with all that said, sorry for any grammer errors, and lack of actual tech names for these processes but i've seen them happen and dont want you guys hurting yourself in the long run.

My suggestion is get a nice tune or re-flash somewhere, heck some of the BMW 335i drivers have actually gained gas mileage with their re-flashes (after market companies dont care about emissions and thus can make a car get better gas mileage and still add HP)

Another option is drive it like it is, get a test pipe (straight pipe) and get the EGT's up really high and shoot a ton of flames around town :)

[GhostMercury]

Most blow off valves, like the factory valve, even though difficult to push up, are already cracked open from the vacuum. If you run that in VTA, with a MAF equipped car, then that would be the same a having a loose vacuum line some where on the intake because air is entering the engine from an unknown source not metered by the MAF, and you will notice some idling issues and such.
From a performance standpoint, the air vented by the blow off valve in recirc. forces the turbocharger to keep spinning in a positive direction and between shifts. The turbocharger is already kept spinning faster and is ready to spool up, vs. VTA where once the throttle is closed, the turbo is forced to slow down, only to be accelerated by the exhaust. But just that split second could make a lot of difference. Just my opinion...


well now i know why i am going to run my bov recirc once i get it lol

[speed3se-r]

well now i know why i am going to run my bov recirc once i get it lol

That is if you get a blow off valve that is similar in design to the factory or is non adj. The hks unit seals itself using the boost pressure, so it will stay close, even though vacuum is applied to the diaphragm. You should be ok with the hks unit in vta.

[DuBy]

x2

[MS3TR]

That is if you get a blow off valve that is similar in design to the factory or is non adj. The hks unit seals itself using the boost pressure, so it will stay close, even though vacuum is applied to the diaphragm. You should be ok with the hks unit in vta.

I personally have the TXS hybrid BOV that runs in rec. mode under normal throttle but changes to VTA under WOT. It sounds great! Its a much deeper and pronounced sound then the HKS. My friend has the HKS BOV on his GTI and it sounds really good, i just personally prefer the sound of this valve.
I will have a pop every once in a while (1 or 2 in a months span) but other than that I have had zero issues. No stuttering or misbehaving in the least. I have it tuned as well with the CPE Standback. CPE has developed a option to cut fuel off between shifts on the standback specifically for BOV's running strictly in VTA mode.

[GhostMercury]

you have a link to the hybrid