Is turbo flutter bad for your turbo?
When the compressed air has nowhere to go, it causes the turbo rotational speed to rapidly drop, and attempts to push against the wheel. This can cause premature wear on your turbo, however closed throttle flutter on modern turbochargers is unlikely to cause a noticeable drop in turbocharger lifespan.
Why does my turbo flutter when I accelerate?
When your turbocharged engine is under load, the engine is consuming air (airflow), and your turbo is creating pressure (boost). That fluttering noise is the sound of a turbo operating in compressor surge, as the compressor ‘chops’ through the air rather than pushing the air into the engine.
Is turbo flutter bad sound?
Since the gas can’t go through the throttle, it exits the same way it came in. As it exits, the compressor blades chop through the air. This is what creates the famous “stu-stu-stu” noise. Unfortunately, this noise could be bad for your engine.
What causes BOV to flutter?
When you let off the gas, you close the throttle body, momentarily giving you a spike in intake pressure but with no airflow. The air has to travel somewhere, so it heads back through the turbocharger. The fluttering you hear is the air escaping back through the turbo as the compressor wheel fights this motion.
Can a turbo spin backwards?
There is a common belief that compressor surge can cause the turbo to “stall” (i.e. stop spinning), or even spin backwards. It’s worth clearing the air and saying that this is incorrect – the turbo will never stop dead or reverse direction because of compressor surge.
What sound does a bad turbo make?
Loud noises: If your vehicle has a bad turbo, you may hear loud noises that sound like whining or screeching. So if your vehicle is running and you hear a loud whining sound that increases in volume as the problem goes unfixed, this is most likely to do a turbo problem.
Why do Supras have turbo flutter?
The flutter sound is compressor surge. It’s air that wasn’t released by the BOV that is going backwards through the system, spinning the compressor fan backwards. It may sound cool, but it destroys your turbo.