SRT-4 BOV and MSP BPV [Archive]

Black Majik MSP

09-09-2003, 09:47 AM

I'm so tired of people getting BOVs for the sound. I think that's actually the main reason that some people get turbo cars. :rolleyes: I would be more concerned with how well it works than if I get some "cool sound".

boostisgood

09-09-2003, 10:01 AM

The SRT-4 is not MAF equipped, it has a MAP. 2 bar to be exact. :D therefore it can run the open atmosphere BOV.

There is really no performance gains between the 2, except the sound. I personally like the way it sounds now. Its like a Rally car BPV. :D

Edited: to avoid flame's. :D

Pirana

09-09-2003, 10:03 AM

Ah, I recent that. I got the HKS SSQ, and I love it.

JeRNuT

09-09-2003, 10:07 AM

Thanks Boostisgood. I didn't know it didn't have a MAF.

Isn't it better to have a MAF over a MAP so that the mixture is Air Fuel Ratio is better. Also dosent the MSP use a preset map at WOT.

ThrillRide

09-09-2003, 10:08 AM

first off we don't have a BOV we have a BPV. Our cars can use a BOV.
you will get a considerably louder sound from the bov and an open air intake. you wont get any gains from the bov....but in my opinion it is the better way to go for longer life of the turbo.

JeRNuT

09-09-2003, 10:28 AM

ThrillRide

09-09-2003, 11:10 AM

:wtf: easy killer. just lending my .02
if you have performance questions go to the performance section. or better yet go ask a mechanic and roll your eyes at him

MSPDAVE125

09-09-2003, 11:43 AM

You are right that we can use a BOV...........but on a "stock" MSP you will hinder performance.

As we all know the BPV is meant to recirculate air back into the Intake manifold. The MAF sensor is setup to use that recirculated air and allocate fuel for that air. If that air is not there, then too much fuel will be dumped into the cylinders and will create a bog between shifts, some vehicles may even stall. With our existing fuel maps this engine runs extra rich as it is. Any more fuel would be double trouble.

A fuel computer can be used to correct this (Perfworks).

Most guys (DSM, Toyota, Nissan) use an S-AFC. As we all know we cannot.

Supras use HKS VPC (Vein Pressure Converter). Which converts the car to Manifold Pressure Sensor. Once again we don't have this luxury.

There are many good BPV on the market.

HKS Super Sequential (Popular Choice) has a recirculation kit availalbe for it.

Hope this helps.

servoeyes

09-09-2003, 01:24 PM

Originally posted by ThrillRide
first off we don't have a BOV we have a BPV. Our cars can use a BOV.
you will get a considerably louder sound from the bov and an open air intake. you wont get any gains from the bov....but in my opinion it is the better way to go for longer life of the turbo.

1) you're the one that came in guns blazing w/ the BOV not BPV comment. Just sounded a little hostile...to me.

2) How are you gonna get better turbo life w/ the BOV? A BPV sends the air back into the intake tract. A BOV lets it out into the air...either one of them will do exactly what it's supposed to: let off excess boost so it doesn't eat your turbo. A faster acting replacement BPV (like I have) will do as well if not better than a BOV. In other words, I'm just curious and confused as to where your last staement came from.

ThrillRide

09-10-2003, 05:50 PM

servoeyes
there was no hostilaty intended. i am a close anquantance to a performance mechanic ( Tim Allen) who has filled me in on all there is to know about turbos. so i was just lending my .02 my apologies. i will just let you ask me personaly next time you have a question and i will stay out of the forum.

servoeyes

09-10-2003, 06:33 PM

Man...you people take things too personally. I was seriously wondering why an BOV is better. That's all...doesn't mean you have to stop posting.

If you thought *I* was being unfair, I apologize...There have been quite a few people who come on here and act like know-it-alls; There's been more than one thread that blew up from someone *having* to point out the we have a BPV and not a BOV. That was several months ago, so you weren't here for that, but I was just trying to say chill, guys. Didn't mean for to come out any other way.

jred321

09-10-2003, 06:39 PM

Originally posted by servoeyes

2) How are you gonna get better turbo life w/ the BOV? A BPV sends the air back into the intake tract. A BOV lets it out into the air...either one of them will do exactly what it's supposed to: let off excess boost so it doesn't eat your turbo. A faster acting replacement BPV (like I have) will do as well if not better than a BOV. In other words, I'm just curious and confused as to where your last staement came from.
what he said.
we can use a bov, we just have to recirc it :) if you change the location of the maf it can be vented, but i assume our maf would have problems with being moved, so you would have to change to a different maf, then find a way to convert it. if you want the noise, switch to a standalone that uses its own air sensor, replace all intake piping, then your car will be worthy of the bad ass noise that you can emit.

slug420

09-10-2003, 08:23 PM

Originally posted by MSPDAVE125
You are right that we can use a BOV...........but on a "stock" MSP you will hinder performance.

As we all know the BPV is meant to recirculate air back into the Intake manifold. The MAF sensor is setup to use that recirculated air and allocate fuel for that air. If that air is not there, then too much fuel will be dumped into the cylinders and will create a bog between shifts, some vehicles may even stall. With our existing fuel maps this engine runs extra rich as it is. Any more fuel would be double trouble.

A fuel computer can be used to correct this (Perfworks).

Most guys (DSM, Toyota, Nissan) use an S-AFC. As we all know we cannot.

Supras use HKS VPC (Vein Pressure Converter). Which converts the car to Manifold Pressure Sensor. Once again we don't have this luxury.

There are many good BPV on the market.

HKS Super Sequential (Popular Choice) has a recirculation kit availalbe for it.

Hope this helps.

so if I udnerstand this correctly, once the ECU gets flashed and our a/f mix is leaned out, running a BOV would probably just put you back to where u were before the flash? having some hesitation and bogging, but because the mix has been leaned out, it would no longer cause stalling?

EVILSRT

09-11-2003, 02:14 AM

Originally posted by Black Majik MSP
I'm so tired of people getting BOVs for the sound. I think that's actually the main reason that some people get turbo cars. :rolleyes: I would be more concerned with how well it works than if I get some "cool sound".

(werd)

DevilsSi1481

09-11-2003, 04:48 AM

yeah i think its cause of "that movie whose name we dont speak of" :D that people now mainly want the damn sound and not the actual performance and prob wind up blowing up their cars.

MSPDAVE125

09-11-2003, 08:24 AM

Originally posted by slug420
so if I udnerstand this correctly, once the ECU gets flashed and our a/f mix is leaned out, running a BOV would probably just put you back to where u were before the flash? having some hesitation and bogging, but because the mix has been leaned out, it would no longer cause stalling?

No.... Not under throttle. A BOV will only cause flooding between shifts. And this will always be this way on cars equipped with a Air Mass Sensor. Depending how much air is not "seen" by the Air Mass Sensor will determine if the car stalls.

Your ECU flash will write new fuel maps and Ignition maps to curve the A/F mixture

Like I said before a re-circulating kit is available for most BOV. But there are also 50+ Diversion or Bypass Valves on the market.

Fuel computer can fix this problem as well.

maximumimpact

09-11-2003, 10:33 AM

Honestly, I considered doing the BOV install for the cool sound...but decided that it wasn't worth it. Yes, it's a cool sound indeed, but who needs the hassles of little ricers pulling up and wanting to race? Now that the SECODN installment of that movie that shall not be named is out and stuff....cops are being a pain in regards to "racing". With the bypass valve, it allows us to run our MSPs like they should be.....a sleek stylish (almost sleeper like) performance sedan.

Just my 2.5 cents....don't flame me! :D

rjspeed

09-11-2003, 02:54 PM

Originally posted by Pirana
Ah, I recent that. I got the HKS SSQ, and I love it.

Where did you get it and hopw much was it? Also do you get any sound at all from it and if you do is it similar to a BOV? I am still not sure as to what I will purchase for my car
Thanx for the help.
Ryan

DevilsSi1481

09-12-2003, 07:48 AM

rjspeed, the HKS SSQ is a BOV, thats just the name of it and the sound it makes is almost like a bird chirping or a high pitched sound.

SmoothCriminal

01-13-2004, 11:08 PM

sorry to dredge up an old thread, but does the HKS Super AFR work with our car?

boostisgood

01-13-2004, 11:13 PM

at this point in time, we know of no one with a fully functioning Fuel controller/piggy back. Some may say they installed one, but I have yet to see proof, even when asked directly to show it. :D

mazdaspeed75

01-13-2004, 11:17 PM

I have the ion fmic and the injen cai I want to run what is best Ion says run the racing bpv turbo ex rpbv25 but I dont know how this will work I want to get rid of the turkey promblem They says this should help Any suggestions

Nextruss

01-13-2004, 11:23 PM

am i correct that the turkey from increased air flow is no physical problem?

DiscreetSpeed

01-14-2004, 09:26 AM

slyydrr

01-14-2004, 09:34 AM

I was hoping someone could answer me via PM or email, but I can check here too, I just tend to forget where I post...

Anyway, I'm not too intelligent when it comes to cars, but I am in the learning process (a very slow one, unfortunately). From some posts I've read, it seems that maybe our cars are supposed to make a noise from the BPV? Am I just horribly mistaken, or is there indeed a noise that it is supposed to make? Thanks in advance for anyone who decides to help me out w/ an answer. :D

jred321

01-14-2004, 09:38 AM

Originally posted by aiken
Anyway, I'm not too intelligent when it comes to cars, but I am in the learning process (a very slow one, unfortunately). From some posts I've read, it seems that maybe our cars are supposed to make a noise from the BPV? Am I just horribly mistaken, or is there indeed a noise that it is supposed to make? Thanks in advance for anyone who decides to help me out w/ an answer. :D
it is supposed to make a noise, it sounds like a turkey who is also letting out a lot of air at the same time

mp5jeff

01-14-2004, 09:49 AM

you CAN run the bov to the atmosphere, just turn the idle control up a bit, and you won't have stauling problems, ive been running it for about two weeks, also i did have a thread showing how to turn the idle control up a bit and it got DELETED because it was a "repost"(someone posted the same thing like 4 months before me) but hey, if we delete threads based on this, 1/2 of the entire board should be deleted right? oh well...

slyydrr

01-14-2004, 11:27 AM

Originally posted by jred321
it is supposed to make a noise, it sounds like a turkey who is also letting out a lot of air at the same time

What if I don't hear this noise? Does that mean something's wrong w/ my car?

igdrasil

01-14-2004, 11:39 AM

Originally posted by aiken
What if I don't hear this noise? Does that mean something's wrong w/ my car?

If you dont hear your turkey, then your car is good. The turkey sound comes from the turbine, not the BPV.

Its caused by the BPV not doing its job well thus causing a compressor surge.

You may hear a very faint whoooshhh instead.

slyydrr

01-14-2004, 11:41 AM

Originally posted by igdrasil
If you dont hear your turkey, then your car is good. The turkey sound comes from the turbine, not the BPV.

Its caused by the BPV not doing its job well thus causing a compressor surge.

You may hear a very faint whoooshhh instead.

Ahhhhh, so the little "whirrr" i kinda hear, is that my turbo spooling up, and the same thing you're referring to? Or something different.

BLURSPEED

01-14-2004, 12:41 PM

The only way for the MSP to run a BOV without a turkey, stalling, recirc, and using the factory BPV in conjuction is to relocate the MAF. Just as CustomMSp, myself, and a few others have done. The question is how long can the MAF handle it. I've have my setup like this for a while now and no problems at all. CustomMSp is running a 1sg gen DSM BOV and I'm running a Greddy Type S and it is super loud. Sounds so beatiful. Do a search for LILBEAVIS MP3 "MUSIC TO YOUR EAR" and that's how a BOV should sound. Peace!