turkey bov sound becuz of intake [Archive]

supman

08-01-2003, 04:24 AM

For those ppl who have a intake and are really annoyed by the bov sound, i found a technique to make it sound like "pppppssshhhh" not "erhh....erhh....erhh...". Well in around 3500rpms let go of pedal really slow to get the smooth sound, in even higher rpms it'll get a little high pitch sound to it! Might not work for some cuz i let my friend drive it but he couldn't pull it off. Just want to let u guys know. I'll try to do video if i can. :)

InitialDMP5

08-01-2003, 04:34 AM

http://www.mazdamp3.com/members/InitialDMP5/turkey_insidev2.jpg

check it dood, this is the explanation to the noise

JDM Sam

08-01-2003, 05:04 AM

buy a damn bov and quit complaining

supman

08-01-2003, 05:10 AM

did u guys even read it? i wasn't complaining, i was trying to help ppl with the turkey prob.

JDM Sam

08-01-2003, 05:11 AM

well thats for everyone who complains about the stock BYPASS VALVE. GET A NEW BLOW OFF VALVE!

jonnydoe48

08-01-2003, 05:24 AM

JDM IS CORRECTO!

supman

08-01-2003, 05:32 AM

ya, that would be the best, but its alot of money cuz u gotta replace the ic pipe to a metal one also it'll void the warrenty. Plus, i hear it stalls the car.

JDM Sam

08-01-2003, 05:42 AM

Well heres some FYI if you havent done a search on BOV yet. I run my HKS open vent with no stall problems. It's installed without replacing the pipe, and last time I checked I still have my warranty.

jonnydoe48

08-01-2003, 05:48 AM

JDM IS CORRECTO!

Elderain

08-01-2003, 09:01 AM

Originally posted by InitialDMP5
http://www.mazdamp3.com/members/InitialDMP5/turkey_insidev2.jpg

check it dood, this is the explanation to the noise

(lol) (rofl) (lol) (rofl)
thats classic :) nice work on the logo hehe

TampaBlackMSP

08-01-2003, 10:44 AM

Jeez, is it just me or is there something wrong with altering the way you drive to make it 'sound different'...wtf?! If I drive with the parking brake on all day it likely won't make the noise due to me not going anywhere very quickly, but I'm probably not going to do that either. Try driving technique improvement, who cares about the friggin' sound....

servoeyes

08-01-2003, 11:18 AM

Just a note, the faster and smoother you shift, the less turkey like it sounds. That's improving your driving technique, isn't it? :D

Besides, it's really growing on me...I like my turkey...it may actually sound a little different w/ my DV, but it's generally the same.

igdrasil

08-01-2003, 12:14 PM

You guys that refer to that sound as a turkey sound and stuff, looks like very young noobs.

That sound is an oldie. I dont know why craping around about it. Thats a turbo.
Didnt you know the mazdaspeed comes with a turbo? (hand)

yeah, a turbo. that is a thing that make your wheels spin a lot, that it is all about a turbo is.... for wheelspin.

the turkey sound is just an extra

:rolleyes:

servoeyes

08-01-2003, 12:29 PM

Thanks for the tip...but I'm not sure that it makes us look like noobs, chief. We know it came with a turbo (hell that's why I bought it, slappy!) But I had never heard a bypass other than most wee-dub and audi bosch valves, which definately don't sound like ours' when they release excess boost. Hell...I even have a different BPV/DV in there, and it still sounds the same, so it's not the valve, it's something that's part of the car. Seeing as you don't have an MSP, you may not have heard this sound, but there's a vid on here that has it: BPV sound (http://info1credit.com/bb/injen/injenbov.avi)

That's what we're talking about. I have never heard that sound before, and if THAT'S what makes me a n00b then so be it. But at least explain what an oldie is if you're gonna put us down.

supman

08-01-2003, 02:10 PM

yo jdm, can u post some pics? thats the first i ever heard! NOT voiding warrenty! u musta did a good job!

igdrasil

08-01-2003, 03:01 PM

That video does not show anything. Too short.

And I do have a turbo in my Protege5. And I admit Im a noob...
;)

because of my ignorance hooking up the BOV, which was not opening at all. I recognized that sound I was hearing in some other cars and modded motorcycles that did not have a BOV.

JDM Sam

08-01-2003, 03:08 PM

uhh do a search i posted a pic already

servoeyes

08-01-2003, 05:00 PM

Originally posted by igdrasil
That video does not show anything. Too short.

And I do have a turbo in my Protege5. And I admit Im a noob...
;)

because of my ignorance hooking up the BOV, which was not opening at all. I recognized that sound I was hearing in some other cars and modded motorcycles that did not have a BOV.

The video is OF the sound...that's the turkey! That little -ftttrrrrr- noise is it. I actually got it to give me a fffffffiiiitttttttttr, today though....just a teenie bit of rattle at the end. Man that sounded nice. Anywho...I still have to adjust this BPV...it may be too tight right now.

ahb11m

10-11-2003, 08:07 AM

ooook kiddies, really important thing.... turkey sound, is not good in one little bit!!! your cars will all need a bigger bypass/blow off valve fitted... infact you should be able to get mazda to do it....

turkey sound is caused by compressed air hitting up against the throttle when it closes... when this happens the turbo is still spooling....the air is trapped its only way out is through the turbo, so the compressed air is just sitting there hitting up against the compressor blades of the turbo

basically a great way to screw up a turbo... you'll break the fins at minimum, and at the best you'll be picking up metal bits from all around the road, and your hood....

basically..? get it fixed ASAP.... it might sound cool but do you want to replace your turbo that way?

confirmed by an ACP journo, and turbosmart australia....

]glad to help anyone out there!!!

James

Ryan

10-11-2003, 08:31 AM

Originally posted by supman
For those ppl who have a intake and are really annoyed by the bov sound, i found a technique to make it sound like "pppppssshhhh" not "erhh....erhh....erhh...". Well in around 3500rpms let go of pedal really slow to get the smooth sound, in even higher rpms it'll get a little high pitch sound to it! Might not work for some cuz i let my friend drive it but he couldn't pull it off. Just want to let u guys know. I'll try to do video if i can. :)

lol, thats the intake, as it slowly stops sucking that is not a bov.. sounds similar.. when u let off the gas easily the bov will not go off.

Ryan

10-11-2003, 08:32 AM

Originally posted by JDM Sam
well thats for everyone who complains about the stock BYPASS VALVE. GET A NEW BLOW OFF VALVE!

it wont get rid of the turkey sound... sorry just aint happening..

igdrasil

10-11-2003, 10:20 AM

i think the turkey sound is nice....

Ryan

10-11-2003, 10:25 AM

Originally posted by ahb11m
ooook kiddies, really important thing.... turkey sound, is not good in one little bit!!! your cars will all need a bigger bypass/blow off valve fitted... infact you should be able to get mazda to do it....

turkey sound is caused by compressed air hitting up against the throttle when it closes... when this happens the turbo is still spooling....the air is trapped its only way out is through the turbo, so the compressed air is just sitting there hitting up against the compressor blades of the turbo

basically a great way to screw up a turbo... you'll break the fins at minimum, and at the best you'll be picking up metal bits from all around the road, and your hood....

basically..? get it fixed ASAP.... it might sound cool but do you want to replace your turbo that way?

confirmed by an ACP journo, and turbosmart australia....

]glad to help anyone out there!!!

James

wrong.... go find someone with a greddy type s bov or an aftermarket bov were u can see into the center of the bov... doens't have to be on a mazda... just look in the hole the air blows out of there is a rubber plunger in there, on most other cars that rubber plunger raises up and stays up to release the correct ammount of air.. if you look at it on the msp. it raises then shuts it kinda flutters...

this is not due to that.. its the fact that our cars use a bypass valve not a blow off valve.. this being said its always gonna have that sound reguardless of what kind of bov or bpv u slap on there..

all cars with a bpv setup have this kinda flutter.. even the old rx7 that our bpv was modeled after...

Ryan

10-11-2003, 10:28 AM

Originally posted by servoeyes
Thanks for the tip...but I'm not sure that it makes us look like noobs, chief. We know it came with a turbo (hell that's why I bought it, slappy!) But I had never heard a bypass other than most wee-dub and audi bosch valves, which definately don't sound like ours' when they release excess boost. Hell...I even have a different BPV/DV in there, and it still sounds the same, so it's not the valve, it's something that's part of the car. Seeing as you don't have an MSP, you may not have heard this sound, but there's a vid on here that has it: BPV sound (http://info1credit.com/bb/injen/injenbov.avi)

That's what we're talking about. I have never heard that sound before, and if THAT'S what makes me a n00b then so be it. But at least explain what an oldie is if you're gonna put us down.

the vw, and audi do make this type of sound its not quite as noticable but it is there.. its a light flutter...

ahb11m

10-11-2003, 12:11 PM

ryan, bypass valves are meant to be on or off.. not flutter, when that brass plunger is sucked up by the manifold vacumm the excess is vented, when you get back on the noise the vacumm will be balanced on either side, letting the plunger drop back in...

if there is a flutter, i can only think of a few problems - problems with factory tubing (perhaps a leak?) or sketchy springs in the BOV

problem is car manufacturers do design great cars.. then the accountatnts come in - if there were no accountants your car would be exxy, but you wouldn't even want to mod the thing

Ryan

10-11-2003, 12:18 PM

Originally posted by ahb11m
ryan, bypass valves are meant to be on or off.. not flutter, when that brass plunger is sucked up by the manifold vacumm the excess is vented, when you get back on the noise the vacumm will be balanced on either side, letting the plunger drop back in...

if there is a flutter, i can only think of a few problems - problems with factory tubing (perhaps a leak?) or sketchy springs in the BOV

problem is car manufacturers do design great cars.. then the accountatnts come in - if there were no accountants your car would be exxy, but you wouldn't even want to mod the thing

its a characteristic of the car i dont see any problems with it... there are several cars that produce this sound and ones similar to it... and it doesn't matter what bov you slap on the car its gonna keep the same basic sound... take the skyline for example ever heard its bov... same type flutter and your gonna sit there adn tell me a car thats expensive as that.. has a problem.. okay whatever you say.. i'll let ya keep talking what ya want.. i still dissagree.

03BlkMicaSPD

10-11-2003, 12:23 PM

If you havent heard the sound the MSP makes when pressure is released through the BPV, then you havent seen very many turbo cars except on F&F, witch the sound on that movie doesnt even come from the cars, its added. Almost all stock RX7's, Grand Nationals running 10's, Supras, and ive even seen a turbo mustang that runs 8's and they all make the same sound. It is the sound that BPV's and BOV's have always made untill F&F started the HKS sound craze.

check this out, RX7 making the same sound ours makes only alot louder.http://www.angelfire.com/nc3/mazdaspeed/newRX7_BOV2.avi

Ryan

10-11-2003, 12:26 PM

hello 03blkmicaspd thanks for the backup.. now wtf u have to say about it.. geezus christ i been saying this for fucking god knows how long... oh its a problem blha blah blah STFU... point proven.

ahb11m

10-11-2003, 12:48 PM

ryan..no

Black Majik MSP

10-11-2003, 12:48 PM

If all of you will just be patient, Forge Motorsport is going to develop a DV that will directly replace our stock unit without any other upgrades & won't stall the car.

http://www.protegemp3.com/vbb230/showthread.php?s=&threadid=34586

Despite people posting about getting BOVs & intakes, it has been stated multiple times that the WASTEGATE is what causes the turkey sound.

kwiktsi

10-11-2003, 12:55 PM

Originally posted by igdrasil
You guys that refer to that sound as a turkey sound and stuff, looks like very young noobs.

That sound is an oldie. I dont know why craping around about it. Thats a turbo.
Didnt you know the mazdaspeed comes with a turbo? (hand)

yeah, a turbo. that is a thing that make your wheels spin a lot, that it is all about a turbo is.... for wheelspin.

the turkey sound is just an extra

:rolleyes:

That's not how they sounded in that real life, realistic Fast And Furious movie :D.. That psshhhh= POWA YO... Lol, I just lov ethe guys around here with stock 1st gen talons doing a Turbo XS bov as the first mod (anyone that knows talons knows the 1G bov holds up quite well anyway) and they drive around town with their half-assed running, stalling-the-light POS popping off their BOV at every performance car they see like "what's up now biaaatch???".. What a joke :)..
Joe

Black Majik MSP

10-11-2003, 12:57 PM

ahb11m: You don't own an MSP, you've probably never even seen one, & you are trying to tell us that the turkey sound that EVERYONE has is a defect. :rolleyes: Stop being a troll & realize that you aren't helping anyone.

kwiktsi

10-11-2003, 01:01 PM

Originally posted by ahb11m
ooook kiddies, really important thing.... turkey sound, is not good in one little bit!!! your cars will all need a bigger bypass/blow off valve fitted... infact you should be able to get mazda to do it....

turkey sound is caused by compressed air hitting up against the throttle when it closes... when this happens the turbo is still spooling....the air is trapped its only way out is through the turbo, so the compressed air is just sitting there hitting up against the compressor blades of the turbo

basically a great way to screw up a turbo... you'll break the fins at minimum, and at the best you'll be picking up metal bits from all around the road, and your hood....

basically..? get it fixed ASAP.... it might sound cool but do you want to replace your turbo that way?

confirmed by an ACP journo, and turbosmart australia....

]glad to help anyone out there!!!

James

You are right, however- the low boost the MSP runs isn't nearly enough to cause problems.. A lot of built automatic turbo cars don't run them either due to not lifting on the shifts like a manual car... Even old schoold cars without any BOV at all went for quite a long time without turbo failure due to the backpressure. Yes, it is better for the turbo to vent then back up, but it is not as damaging as people make it seem- especially at low boost. Now, I have seen cars running 30 + psi snap the impeller off due to not having a BOV when they lifted, but that is another story :)..
Joe

ahb11m

10-11-2003, 01:19 PM

thank you joe, for seeing what i was saying

i've been watching this post from day one, and am just trying to help with my EXPERIENCE from turbos - my MSP experience was brief , it drove past me on a holiday - i'm not arguing that at all - but cars are cars, and generally follow the same guidelines of how they operate.

sorry to disturb you guys i'll leave you to it.

James

servoeyes

10-11-2003, 01:58 PM

Wow...I'm impressed that this is still going in. In thoery you are right, and the sound would be something like that, ahb. However, there is zero turbo lag when that throttle body closes and you shift and then get back on it. IF we had 6-7psi hitting the turbo, we'd be slowing the fins down...and causing lag(I know...I have an adjustable DV, and have had it hold too long). Now...I'm also running a larger DV (1" ID vs 5/8"[I believe] stock). My results are that I still have the turkey noise (but no more honking from a leaky stock BPV)...From my experience, I can't believe that we are having any issues. The other explanation for this sound is wastegate flutter...which seems to be typical with this turbo. That's my 2 cents.