Welcome to the North American Subaru Impreza Owners Club Friday August 18, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > General Community

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 05-18-2017, 12:57 AM   #1
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default turbo surge/ flutter/chatter/compressor high pitched sound

hi everyone im about to buy a hdi gt2 fmic and i really want my vf22 to make a high compressor stalling sound like in the video.....how do i go about having that sound ? i think a fmic is a BIG must when trying to get long turbo compressor stall but i dont know if having a bar & plate vs tube N fin cooler really matters ? ....

oh and yes i know it will slowly kill my turbos life @ 14psi eveyday .....

i know to help obtain that sound u do have to block off bov and have a pod fillter.....

do i really need a external gate to help get that sound ?




* Registered users of the site do not see these ads.
whiterabbitrexy is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 05-18-2017, 09:18 AM   #2
sc00by4life
Scooby Guru
 
Member#: 97135
Join Date: Sep 2005
Chapter/Region: NWIC
Default

not sure you would ever want to do this.

want the sound? remove your bpv and block it off.
sc00by4life is offline   Reply With Quote
Old 05-18-2017, 10:50 AM   #3
Abismo
Scooby Specialist
 
Member#: 99707
Join Date: Nov 2005
Chapter/Region: MWSOC
Location: Missouri
Vehicle:
2010 WRX (in spirit)
CWP

Default

how the hell is that an attractive sound.. at all? This is what stupidity sounds like. God this is like "stance" for your engine...


Abismo is offline   Reply With Quote
Old 05-18-2017, 11:25 AM   #4
horsePOOGAS
Scooby Newbie
 
Member#: 450712
Join Date: Jul 2016
Default

Pretty sure you can buy a device on Ebay that will make that sound for you. I hear it's fairly cheap.
horsePOOGAS is offline   Reply With Quote
Old 05-18-2017, 10:19 PM   #5
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by horsePOOGAS View Post
Pretty sure you can buy a device on Ebay that will make that sound for you. I hear it's fairly cheap.
if its a speaker making that turbo nosie i dont want to know about it........if its somthing to do with pipeing please shear...... i want my car actually making the high pitch flutter...
whiterabbitrexy is offline   Reply With Quote
Old 05-18-2017, 10:23 PM   #6
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by sc00by4life View Post
not sure you would ever want to do this.

want the sound? remove your bpv and block it off.
yeah i removed the bov and blocked off the pipes and this is what i got


whiterabbitrexy is offline   Reply With Quote
Old 05-18-2017, 10:41 PM   #7
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default




how did this dude get this sound ? but i would think his setup is bad its surgging pretty bad while he is boosting up ? .....turbo surge isnt good when your in boost
whiterabbitrexy is offline   Reply With Quote
Old 05-18-2017, 10:45 PM   #8
CarmelValleyWRX
Scooby Newbie
 
Member#: 453872
Join Date: Sep 2016
Vehicle:
2005 wrx wagon
48w

Default

CarmelValleyWRX is offline   Reply With Quote
Old 05-18-2017, 10:51 PM   #9
CarmelValleyWRX
Scooby Newbie
 
Member#: 453872
Join Date: Sep 2016
Vehicle:
2005 wrx wagon
48w

Default

Quote:
Originally Posted by whiterabbitrexy View Post


how did this dude get this sound ? but i would think his setup is bad its surgging pretty bad while he is boosting up ? .....turbo surge isnt good when your in boost
this guy is running some sort of antilag or launch control. its funny to bash this guys setup considering this thread... flutter during spool up would mean your building boost really fast which would be well done. purposely getting surge on throttle lift is easy and not a good idea.
CarmelValleyWRX is offline   Reply With Quote
Old 05-19-2017, 03:29 AM   #10
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by CarmelValleyWRX View Post
DOOOOOd watch mighty car mods. they have some sickass flatbil mods for you to try out.


https://www.youtube.com/watch?v=F3RbvFXQYJo

https://www.youtube.com/watch?v=r1ols0kIsHo

https://www.youtube.com/watch?v=o3mhq_BrnU0

https://youtu.be/Z_fG_b65WiU?t=512



(disclaimer MCM is one of my favorite youtube channels)

hay CarmelValleyWRX next time u spray paint your brake calipers remeber to close your eyes and spray your face for 10sec ....

by doing this u convert your car into a 10sec beast.....You really should try it out
whiterabbitrexy is offline   Reply With Quote
Old 05-19-2017, 11:30 AM   #11
Pantyraider
Scooby Newbie
 
Member#: 178062
Join Date: Apr 2008
Location: NutBucket is stalking me
Vehicle:
2017 STI Limited
CWP

Default

Quote:
Originally Posted by Abismo View Post
how the hell is that an attractive sound.. at all? This is what stupidity sounds like. God this is like "stance" for your engine...


[url="https://www.youtube.com/watch?v=LQCU36pkH7c"]"Everyone Is Now Dumber" - Billy Madison - YouTube[url]
Because racecar

Pantyraider is online now   Reply With Quote
Old 05-19-2017, 02:08 PM   #12
lpxltt
Scooby Newbie
 
Member#: 395574
Join Date: Jul 2014
Chapter/Region: NESIC
Location: Almost Cape Cod, MA
Vehicle:
2007 OBS

Default

Quote:
Originally Posted by CarmelValleyWRX View Post
DOOOOOd watch mighty car mods. they have some sickass flatbil mods for you to try out.
Uncle Scotty, is that you?
lpxltt is offline   Reply With Quote
Old 05-19-2017, 02:13 PM   #13
under pressure
Scooby Newbie
 
Member#: 92776
Join Date: Aug 2005
Chapter/Region: SWIC
Location: in the desert
Vehicle:
2004 VF48 Wagon
6 gear speeding

Default

Look into direct exhaust injection technology.
under pressure is offline   Reply With Quote
Old 05-19-2017, 02:58 PM   #14
Abismo
Scooby Specialist
 
Member#: 99707
Join Date: Nov 2005
Chapter/Region: MWSOC
Location: Missouri
Vehicle:
2010 WRX (in spirit)
CWP

Default

Quote:
Originally Posted by Pantyraider View Post
Find it annoying there too, though I supposed for them its happening for a reason and not intentionally. But damn... that driving they were doing.
Abismo is offline   Reply With Quote
Old 05-20-2017, 07:57 AM   #15
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by Pantyraider View Post
Because racecar

Find it annoying there too, though I supposed for them its happening for a reason and not intentionally. But damn... that driving they were doing.
Abismo is offline Report Post




so u find it annoying only to come here and complain ??
whiterabbitrexy is offline   Reply With Quote
Old 05-20-2017, 08:02 AM   #16
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by under pressure View Post
Look into direct exhaust injection technology.
think i hear your mate spray painting his calipers go help him he needs a hand ......

while your helping him explain your exhaust injection technology to him......im sure he will love to hear about it
whiterabbitrexy is offline   Reply With Quote
Old 05-20-2017, 01:23 PM   #17
Sour_K
Scooby Newbie
 
Member#: 370021
Join Date: Oct 2013
Chapter/Region: RMIC
Location: Salt Lake City, Utah
Vehicle:
2008 WRX Hatchback
WRB

Default

Quote:
Originally Posted by Abismo View Post
Find it annoying there too, though I supposed for them its happening for a reason and not intentionally. But damn... that driving they were doing.
Wonder if it has something to do with the him repeatedly mashing the accelerator through corners to keep the RPM's up. Maybe trying to keep the RPM's in the fat part of his boost curve to get torque and break the rear end free? Could it happen from the actuator repeatedly opening and closing and causing the surge of air pressure against the turbine? I was always told that sound was the turbo fins trying to spin backwards, what is that sound really?

I don't know, I don't pretend to be a rally driver, but he obviously knows what he's doing and they meticulously maintain those cars after races. Also, that sound can spread across all turbo engines right?
Sour_K is offline   Reply With Quote
Old 05-20-2017, 01:32 PM   #18
CarmelValleyWRX
Scooby Newbie
 
Member#: 453872
Join Date: Sep 2016
Vehicle:
2005 wrx wagon
48w

Default

if your running antilag a blow off valve doesnt make sense. your trying to keep your manifold under pressure, so you just deal with the compressor surge. the antilag eats turbos anyway, so they dont care if a bit of stall is going to mess up the bearings and wheel eventually.
for a street car it makes sense to vent the air so your turbo stays spooled for a short time through inertia, since you most likely dont have antilag.
CarmelValleyWRX is offline   Reply With Quote
Old 05-20-2017, 01:55 PM   #19
Sour_K
Scooby Newbie
 
Member#: 370021
Join Date: Oct 2013
Chapter/Region: RMIC
Location: Salt Lake City, Utah
Vehicle:
2008 WRX Hatchback
WRB

Default

Quote:
Originally Posted by CarmelValleyWRX View Post
if your running antilag a blow off valve doesnt make sense. your trying to keep your manifold under pressure, so you just deal with the compressor surge. the antilag eats turbos anyway, so they dont care if a bit of stall is going to mess up the bearings and wheel eventually.
for a street car it makes sense to vent the air so your turbo stays spooled for a short time through inertia, since you most likely dont have antilag.
That's what a 2-step launch set up is, correct? Huh, I'm guessing by stalling you mean the turbo's blades actually stop inside the housing, and that sounds like the car will be going through turbos fairly quickly.

So, even for a track car, why aren't recirculating BOV's more popular? I thought the purpose of those was to re-route pressure back into the turbo to keep it spooled, reducing in turbo lag/loss of boost between shifts. Wouldn't a recirc. valved car be faster than an atmospheric vent car? I get I could google all this stuff, just bored on a Saturday and making conversation.
Sour_K is offline   Reply With Quote
Old 05-20-2017, 02:07 PM   #20
CarmelValleyWRX
Scooby Newbie
 
Member#: 453872
Join Date: Sep 2016
Vehicle:
2005 wrx wagon
48w

Default

2 step is for launching, but antilag actually keeps the boost up when your off throttle.

the stall does not actually reverse the blades, but they stop creating pressure and the air goes backward past the compressor blades.
CarmelValleyWRX is offline   Reply With Quote
Old 05-20-2017, 03:39 PM   #21
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

I see this..... https://forums.nasioc.com/forums/sho....php?t=2839830 in the future at this rate.........
Charlie-III is online now   Reply With Quote
Old 05-20-2017, 04:33 PM   #22
Sour_K
Scooby Newbie
 
Member#: 370021
Join Date: Oct 2013
Chapter/Region: RMIC
Location: Salt Lake City, Utah
Vehicle:
2008 WRX Hatchback
WRB

Default

Quote:
Originally Posted by CarmelValleyWRX View Post
2 step is for launching, but antilag actually keeps the boost up when your off throttle.

the stall does not actually reverse the blades, but they stop creating pressure and the air goes backward past the compressor blades.
So you're saying the car is constantly pushing boost and not pulling vacuum? I guess that makes sense for a race car, but that would destroy something like a DD. TIL: Turbo stuff.
Sour_K is offline   Reply With Quote
Old 05-20-2017, 05:44 PM   #23
sc00by4life
Scooby Guru
 
Member#: 97135
Join Date: Sep 2005
Chapter/Region: NWIC
Default

Quote:
Originally Posted by Sour_K View Post
I guess that makes sense for a race car, but that would destroy something like a DD.
thats the idea and why its retarded people want to do this to their street cars.

race motors only have to last so long.
sc00by4life is offline   Reply With Quote
Old 05-20-2017, 05:59 PM   #24
mv75
Scooby Newbie
 
Member#: 467995
Join Date: May 2017
Location: Australia.
Vehicle:
2003 Club Spec 6.
World Rally Blue.

Default

Quote:
Originally Posted by whiterabbitrexy View Post
https://m.youtube.com/watch?v=8iiKMCeYYBo



how did this dude get this sound ? but i would think his setup is bad its surgging pretty bad while he is boosting up ? .....turbo surge isnt good when your in boost
Really want to know? Mine goes like that exactly. What I have fitted, you try and guess what does it. Call it a fun game.

td06sl2 (billet wheel)
avo turbo intake (feeds the turbo)
72mm Process west big maf cai (feeds the avo and lets the noise out)
Process west top mount (fed by turbo and holds all the ~22psi boosts)
*STOCK BOV BOOST HOLD MOD*

Take a guess.

Quote:
Originally Posted by Sour_K View Post
So, even for a track car, why aren't recirculating BOV's more popular? I thought the purpose of those was to re-route pressure back into the turbo to keep it spooled, reducing in turbo lag/loss of boost between shifts. Wouldn't a recirc. valved car be faster than an atmospheric vent car? I get I could google all this stuff, just bored on a Saturday and making conversation.
Ok, on our cars the recirculating is there because the back pressure through the turbo interferes with the maf sensor if there was no bov. That's why we have a recirc.

The car that is stu-stu rather than ah-choo still has pressure in the intercooler. The car that sneezed it all back into the pre turbo area does not. This is why track cars will stu stu. It's merely just the side affect of having a bov that is able to hold higher boost pressures that would otherwise be **** blocked by a stock bov cracking open.
mv75 is offline   Reply With Quote
Old 05-21-2017, 12:12 AM   #25
whiterabbitrexy
Scooby Newbie
 
Member#: 379271
Join Date: Jan 2014
Default

Quote:
Originally Posted by mv75 View Post
Really want to know? Mine goes like that exactly. What I have fitted, you try and guess what does it. Call it a fun game.

td06sl2 (billet wheel)
avo turbo intake (feeds the turbo)
72mm Process west big maf cai (feeds the avo and lets the noise out)
Process west top mount (fed by turbo and holds all the ~22psi boosts)
*STOCK BOV BOOST HOLD MOD*

Take a guess. .
um care to explain the bov boost hold mod ????? im really confused when u say stock bov mod ? no stock turbo subaru came with a bov ....it only came with recirculating valve aka bpv.... i have same mods as you minus billet wheel and procces west tmic i cant get that sound..... only mod i can think of your talking about is to plumb the bov trumpet back into the intake with a pipe ?
whiterabbitrexy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 09:50 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.