Turbo sputter
Thread Starter
TECH Fanatic
Joined: Nov 2001
Posts: 1,986
Likes: 1
From: Centrifugal City
Turbo sputter Just a Q for a friend.
If he has added a new wastegate and increased boost level 2-3psi, but is now hearing a sputtering noise at higher RPM's... what might it be?
Kind of a fluttering sound.
TIA.
If he has added a new wastegate and increased boost level 2-3psi, but is now hearing a sputtering noise at higher RPM's... what might it be?
Kind of a fluttering sound.
TIA.
If it happens when you let off the accelerator under boost, it is the sound made by the air passing back through the turbo. A good BOV will get rid of this. It is not the best thing for the turbo's to stall the compressors with the backflow of air. A good hard high boost slam can take out your turbo too (don't ask me how I know).
-Geoff
-Geoff
Teching In
Joined: Jun 2004
Posts: 9
Likes: 0
I have the exact same problem! I have tried different vacuum sources, different BOV tensions (mine's adjustable) and even tried out a $300 bov instead of my $100 one and it still does it? It never does it under low boost or half throttle. Only happens at 3/4 to full throttle and even then it is about 50% of the time. I'm out of ideas. Sorry to jack the thread but any answer I get will probably help. Could it be I need two BOV since one isn't dumping enough air? Anybody?
If your on the throttle and its making noises then its not the BOV. Sounds like compressor surge. What engine is this on and what turbo is it?? We can get further into it, but we need more details.
Jose
Jose
Trending Topics
Teching In
Joined: Jun 2004
Posts: 9
Likes: 0
For mine, I have twin Garrett t3/t4e's, .69 exhaust, running 6-7psi on a 2002 TA LS1 M6, and it's only when OFF the throttle. If I get into boost at 1/2 throttle or less, no problems, the bOV fires perfectly. When I'm doing a heavy pull, 3/4 throttle or more, it's totally fine and pulls like a freight train but when I shift, 50% of the time it surges back. Like I said, I've tried everything I can think off and nothing seems to help.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
