"turkey" Day

[spacemonkey]

So I got a Forge BOV and decided to hang with my 240 buddies at Drift day. i blew off a couple times and everyone wanted the "turkey." apparently alot of drift cars and sound like that. They wanted to know how they can make there cars sound like our cars. They took my stock BPV and that didnt work. Any suggestions on how to make other cars sound like the MSP. How would you get a normal car to flutter like ours without getting a fluttery wastegate....is it piping? Any suggestions? I dont think its compressor surge because some of them had compressor surge and it sounded diffrent...from what they said. So they def think its the wastegate...but have no clue of what actually makes it flutter. Could it be the piping?

Note: I know this topic has been beaten to death but no one really said with 100% certainty what actually causes the flutter<!-- / message --><!-- sig -->

 

[II-Savy]

"I dont think its compressor surge because some of them had compressor surge and it sounded diffrent...from what they said"

I have been saying this FOREVER and no one would believe me. "Well screw you guys, I'm going home"

Topic - I think they would need our wastegate, but I'm really not sure about that.

 

[spacemonkey]

Yeah II-Savy...I know you posted a couple times in the Forge thread when forge was sure it wasnt compressor surge. I know this topic has been beaten to death but no one really said with 100% certainty what actually causes the flutter

 

[II-Savy]

Yeah II-Savy...I know you posted a couple times in the Forge thread when forge was sure it wasnt compressor surge. I know this topic has been beaten to death but no one really said with 100% certainty what actually causes the flutter

True, my father had initially thought it was something to do with the BPV not being smooth, but pulsating.....cause really you hear the turkey OUT of the CAI. and with the stock box it kills the sound. I feel it's a combination of the BPV and our wastegate....together. It's NOT the plastic pipes cause weren't people still getting it with hard pipes ?

 

[spacemonkey]

Its def not the BPV. My BOV makes it sound alot louder and a bit longer. So that cuts it down to the wastegate. Tom thinks it might be the pipes and how its set up on the car.

Waht im confused is that other MSPeeders with the Forge BOV are getting a turkey and a whoosh sound....only not as loud. I only get a loud angry turkey. we have the same setup...the only diffrence is that I have a Injen CAI. People have also said the the turkey gobble are cut in half if you convert to SRI...like you'll get 2 gobbles instead of 5....

 

[II-Savy]

Its def not the BPV. My BOV makes it sound alot louder and a bit longer. So that cuts it down to the wastegate. Tom thinks it might be the pipes and how its set up on the car.

Waht im confused is that other MSPeeders with the Forge BOV are getting a turkey and a whoosh sound....only not as loud. I only get a loud angry turkey. we have the same setup...the only diffrence is that I have a Injen CAI.

yea the injen really does change things, it's a different run through the engine bay and I think even the type of filter COULD change the sound.

 

[mbiker97]

I've always thought the MSP BOV sounds alot like the Tial BOV. They might want to give it a shot.

 

[www.03msp.com]

yea the injen really does change things, it's a different run through the engine bay and I think even the type of filter COULD change the sound.

From my prognosis, it is the wastegate as when I changed my intake setup like 5 times, each time it made the turkey sound different. I'm running Injen now and turn lots of heads (gobble gobble).

 

[MazdaSpeedTurbo]

Its def not the BPV. My BOV makes it sound alot louder and a bit longer. So that cuts it down to the wastegate. Tom thinks it might be the pipes and how its set up on the car.

Waht im confused is that other MSPeeders with the Forge BOV are getting a turkey and a whoosh sound....only not as loud. I only get a loud angry turkey. we have the same setup...the only diffrence is that I have a Injen CAI. People have also said the the turkey gobble are cut in half if you convert to SRI...like you'll get 2 gobbles instead of 5....

very good chance of this actually being the compressor surge.. just because ou get it with you bov dont mean you are having enough air flow to stop it from surging.. try losening the BOV and it will lessen the pressure to open or close it allowing a full whooooosh, or watever sound your BOV makes.. the turkey should go away if you have the settings right on your BOV.

 

[MrDiggler]

very good chance of this actually being the compressor surge.. just because ou get it with you bov dont mean you are having enough air flow to stop it from surging.. try losening the BOV and it will lessen the pressure to open or close it allowing a full whooooosh, or watever sound your BOV makes.. the turkey should go away if you have the settings right on your BOV.

I would have to agree with that. It doesn't mean that it IS surge, but that it still could be. The BOV may not be venting enough volume fast enough to stay ahead of the turbo. I suspect the plastic piping may be a factor as well.

FWIW mine has a TurboXS BOV, non-recirculated and no BPV. I get the whoosh-gobble sort of sound and it lasts quite a while. I love it though.

Edit - Oops, caught a spelling error. *Hides face in shame*

 

[jersey_emt]

I think it's hilarious that just about everyone here wants to get rid of the turkey, yet people without it want it.

 

[505zoom]

I T I S N O T T H E W A S T E G A T E ! ! ! ! !

Seriously guys, this was figured out in Sept or Oct of last year. There were several people that tried many things to get rid of the sound. The only way to get rid of it is to get a really good flowing BOV system. This points to compressor surge, or if some of you refuse to believe that, it is reversed airflow that is bouncing off of the compressor fins. There is NO WAY that the wastegate could make that sound anyway.

 

[II-Savy]

I T I S N O T T H E W A S T E G A T E ! ! ! ! !

Seriously guys, this was figured out in Sept or Oct of last year. There were several people that tried many things to get rid of the sound. The only way to get rid of it is to get a really good flowing BOV system. This points to compressor surge, or if some of you refuse to believe that, it is reversed airflow that is bouncing off of the compressor fins. There is NO WAY that the wastegate could make that sound anyway.

It's not compressure surge, now it's been said by many people, Callaway, Forge, several engineers here.....and check out the begining of this thread.

 

[hawaiian_msp]

I agree with 505zoom!!! i followed the all of the trial and error threads of all of us trying to get rid of the sound or at least figure out whats causing it and in the end it only points to compressor surge... -mike

 

[MetalSpeed]

Dido(lurk)

 

[dominoy2k1]

i dont know why but i always thought the "turkey" was cool, althought its funny as s*** to hear it.

 

[www.03msp.com]

Has anyone been brave enough to do an EXTERNAL wastegate and rule it out or be on Callaway's ass about the information?

 

[INGREXCO]

what happens if we hook a stronger vacuum hose up to the stock bpv?

 

[MazdaSpeedTurbo]

very good chance of this actually being the compressor surge.. just because ou get it with you bov dont mean you are having enough air flow to stop it from surging.. try losening the BOV and it will lessen the pressure to open or close it allowing a full whooooosh, or watever sound your BOV makes.. the turkey should go away if you have the settings right on your BOV.

is this wrong ?? or was i in the right direction as well

 

[hawaiian_msp]

you are in the right direction ^^^