Go Back   Maxima Forums > Advanced Performance > Supercharged/Turbocharged

Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Welcome to Maxima.org!
Welcome to Maxima.org,

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, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join Maxima.org today!


Reply
 
Thread Tools Display Modes
Old 08-26-2009, 03:36 PM   #1
Senior Member
 
Join Date: Dec 2003
iTrader: (6)
Posts: 2,336
Send a message via AIM to streetzlegend Send a message via Yahoo to streetzlegend
Boost flutter, dosnt go away

So what can cause such thing. I have fixed every leak i had, i used my air compressor and plugged one end of my piping, fixed like 10 leaks, some big ones. also changed spring of my Tial 38mm to a 13psi spring. yet when i get on it, it flutters at 15psi(this is wat i have it set to with a turbosmart tee MBC), I have even removed the gate (ball and spring inside the mbc) so it can function only to control boost and not spool up, and still get the flutter.

Can it be that actual controller thats giving me issues? I also disconnected my muffler and have an open exhaust housing basically, and still did it. you dont feel it but you do see the gauge needle going nuts, fluttering at 15psi.
__________________
Streetz goes into the 11's!!!

440CC RC injectors for sale, $220 Shipped. PM ME
streetzlegend is offline   Reply With Quote
Old 08-26-2009, 07:22 PM   #2
KH3 by popular demand
 
maxgtr2000's Avatar
 
Join Date: Sep 2004
Location: WA State
iTrader: (23)
Posts: 2,231

Send a message via Yahoo to maxgtr2000
Could it be the bov? Does it do it when you let off the gas when it is supposed to blow off? If it does it is compressor surge and you should be able to adjust the bov to get rid of it. If it is doing it when in throttle it still could be the bov leaking.
__________________
Retrofit headlight services
My VQ30DET
Emanage Blue and Ultimate Forums
There can be no peace until you possess the Prince of Peace.
maxgtr2000 is offline   Reply With Quote
Old 08-26-2009, 07:43 PM   #3
The Original CF Maxima
 
Flava_24/7's Avatar
 
Join Date: Oct 2001
Location: Austin TX
iTrader: (40)
Posts: 6,918

Im wondering if its the BOV as well. What BOV are you running streetz?
__________________
Chumps try to imitate but can never duplicate

377hp 338tq
Flava_24/7 is offline   Reply With Quote
Old 08-26-2009, 08:00 PM   #4
Senior Member
 
Join Date: Dec 2003
iTrader: (6)
Posts: 2,336
Send a message via AIM to streetzlegend Send a message via Yahoo to streetzlegend
Well, i have a turboxs RFL (known to leak), how ever mine does not leak at the actual valve, i have a small leak at the piston (the part where the vac/boost line goes to, since it dosnt have a diaphram built in its leaking passed the piston and the housing), but id assume this leak wouldnt cause such conditions. or would it?

I already a SQV HKS, tomorrow I am having it welded onto a 3" pipe i got. So lets see how that goes. Hopefully it will get rid of the problem, if it does not. then my other possible source of issue is how i have my WG hooked up. I have a Turbosmart Tee MBC, which is a bleed style, going into the side port with top port open. if new BOV dosnt fix it, then im going to hook up the WG using the top port since iv been told it gives a more stable pressure.
__________________
Streetz goes into the 11's!!!

440CC RC injectors for sale, $220 Shipped. PM ME

Last edited by streetzlegend; 08-26-2009 at 08:03 PM.
streetzlegend is offline   Reply With Quote
Old 08-27-2009, 09:03 AM   #5
The Original CF Maxima
 
Flava_24/7's Avatar
 
Join Date: Oct 2001
Location: Austin TX
iTrader: (40)
Posts: 6,918

Quote:
Originally Posted by streetzlegend View Post
Well, i have a turboxs RFL (known to leak), how ever mine does not leak at the actual valve, i have a small leak at the piston (the part where the vac/boost line goes to, since it dosnt have a diaphram built in its leaking passed the piston and the housing), but id assume this leak wouldnt cause such conditions. or would it?

I already a SQV HKS, tomorrow I am having it welded onto a 3" pipe i got. So lets see how that goes. Hopefully it will get rid of the problem, if it does not. then my other possible source of issue is how i have my WG hooked up. I have a Turbosmart Tee MBC, which is a bleed style, going into the side port with top port open. if new BOV dosnt fix it, then im going to hook up the WG using the top port since iv been told it gives a more stable pressure.
Im thinking it may. It sounds as if the BOV may not be opening correctly and causing that compressor surge. If the BOV itself was leaking and not holding boost then I wouldnt think so.
Have you tried setting it so that it releases really early just to see if the noise goes away?
__________________
Chumps try to imitate but can never duplicate

377hp 338tq
Flava_24/7 is offline   Reply With Quote
Old 08-27-2009, 11:41 AM   #6
Senior Member
 
Join Date: Dec 2003
iTrader: (6)
Posts: 2,336
Send a message via AIM to streetzlegend Send a message via Yahoo to streetzlegend
actually the needles flutters when its in full boost, the problem is not when i let off, its while at boost.
__________________
Streetz goes into the 11's!!!

440CC RC injectors for sale, $220 Shipped. PM ME
streetzlegend is offline   Reply With Quote
Old 08-27-2009, 01:19 PM   #7
The Original CF Maxima
 
Flava_24/7's Avatar
 
Join Date: Oct 2001
Location: Austin TX
iTrader: (40)
Posts: 6,918

Quote:
Originally Posted by streetzlegend View Post
actually the needles flutters when its in full boost, the problem is not when i let off, its while at boost.
Oh, missed that sorry.
__________________
Chumps try to imitate but can never duplicate

377hp 338tq
Flava_24/7 is offline   Reply With Quote
Old 08-29-2009, 09:16 AM   #8
Senior Member
 
Join Date: Jun 2003
Location: Miami, FL
iTrader: (10)
Posts: 2,300
Send a message via AIM to 95BLKMAX
streetz! How's that duck-call BOV of yours doing? did it solve the problem or not?
__________________

Guys I need money to recover from my recent engine build (it wasnt by choice LOL). Im selling a Holset turbo if you are interested
95BLKMAX is offline   Reply With Quote
Old 08-29-2009, 09:28 AM   #9
Senior Member
 
Join Date: Dec 2003
iTrader: (6)
Posts: 2,336
Send a message via AIM to streetzlegend Send a message via Yahoo to streetzlegend
Quote:
Originally Posted by 95BLKMAX View Post
streetz! How's that duck-call BOV of yours doing? did it solve the problem or not?
let me tell you, in my experience so far, the SQV BOV SUCKS BIG ONES!!!. Put it on, went for a drive, got like 80% turbo surge and 20% bov going off.

in Park, you rev it and the thing bearly opens, dosnt really open at all. Then i took it apart, cleaned it, I even added a barb on the housing for a better vacum (compared to the tiny one it has), and still same crap. Sooo, I took out the spring completely, and it finally works (its a real HKS, but i guess i have too much piping in my setup so dosnt give time for pressure to vent). With the spring removed it works alot better, still hear the surge coming from the back I THINK, but its almost gone. With the spring removed its basically open at idle and in vacumm, and closes as soon as boost comes in.

As for my flutter problem, nope, it wasnt the BOV. still have it, although the car is flying lol.
__________________
Streetz goes into the 11's!!!

440CC RC injectors for sale, $220 Shipped. PM ME
streetzlegend is offline   Reply With Quote
Old 08-29-2009, 10:32 AM   #10
Senior Member
 
Join Date: Jun 2003
Location: Miami, FL
iTrader: (10)
Posts: 2,300
Send a message via AIM to 95BLKMAX
I say you attach a duck-call thing to it man! I bet that will fix it! j/k lol Damn man all that work to get it to work and nothing. Are you also reading fluctuating boost on the voltage reading when you log or is it just the gauge? I ask because what if it's just the gauge by itself...
__________________

Guys I need money to recover from my recent engine build (it wasnt by choice LOL). Im selling a Holset turbo if you are interested
95BLKMAX is offline   Reply With Quote
Old 09-01-2009, 08:03 PM   #11
Senior Member
 
Join Date: Oct 2008
Location: Houston, TX
iTrader: (2)
Posts: 215
Send a message via AIM to mightyMax95
http://www.youtube.com/watch?v=VbNxugO-uf0

__________________
Originally Posted by mightyMax95
well, i got the water pump in
Reply Posted by streetzlegend
if the car starts, ur not a nooblet anymore!

Originally Posted by mightyMax95

i'm just gonna start answering all ?'s i have for you with, "ebay"
Reply Posted by kzoosho
lol, u could

Originally Posted by Matt93SE
Took me a ton of money to learn that physics will ALWAYS win against a FWD car.

Last edited by mightyMax95; 09-01-2009 at 08:05 PM.
mightyMax95 is offline   Reply With Quote
Old 09-01-2009, 10:01 PM   #12
Senior Member
 
Join Date: Dec 2003
iTrader: (6)
Posts: 2,336
Send a message via AIM to streetzlegend Send a message via Yahoo to streetzlegend
Quote:
Originally Posted by mightyMax95 View Post
Mehhhh, outdated
__________________
Streetz goes into the 11's!!!

440CC RC injectors for sale, $220 Shipped. PM ME
streetzlegend is offline   Reply With Quote
Old 09-02-2009, 10:58 AM   #13
Senior Member
 
Join Date: Oct 2008
Location: Houston, TX
iTrader: (2)
Posts: 215
Send a message via AIM to mightyMax95
still funny as hell, lol
__________________
Originally Posted by mightyMax95
well, i got the water pump in
Reply Posted by streetzlegend
if the car starts, ur not a nooblet anymore!

Originally Posted by mightyMax95

i'm just gonna start answering all ?'s i have for you with, "ebay"
Reply Posted by kzoosho
lol, u could

Originally Posted by Matt93SE
Took me a ton of money to learn that physics will ALWAYS win against a FWD car.
mightyMax95 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
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
All times are GMT -7. The time now is 06:42 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.2.0 RC7
Maxima.org Forums Home Here you can view your subscribed threads, work with private messages and edit your profile and preferences Frequently Asked Questions on the Forums Search Find other members Registration is free! Support Maxima.org! Receive perks and benefits by donating to Maxima.org Questions? Comments?  Suggestions? Contact Us! Visit our Sponsors View and submit Maxima events Log Out of Maxima.org