Anyone tried turbo flutter for fun?

[FunInTheSun]

Is this rice?

Undersized BoV. Probably still under development. He's probably not concerned about popping his filter...

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[FunInTheSun]

haha man talk about a long time ago. However I did not do that as rice, I was working on something at the time that did not pan out.

Dang, can't believe its the same truck. Way back on rack Version 1!

That's a pretty sweet-looking truck! I think SId's got you beat on lights, though.
But stickers don't bug me like they do some folks.
Stickers for components you don't HAVE is a classic RICE move.
I'm not accusing you of doing that, to be clear, just clarifying the difference between ricer and real.

 

[Dr. Zaius]

Sorry, but that makes me think of this classic "mod"

Likely NSFW

"Custom" Exhaust

 

[9zero1790]

i met a girl like that once...

 

[9zero1790]

Sorry, but that makes me think of this classic "mod"

Likely NSFW

"Custom" Exhaust

 

[BluBusa66]

The only car that has ever sounded good on is this:

 

[seanellaz]

Turbocharged cars make two distinct iconic sounds.

Atmospheric Blow Off-Valve; this creates the iconic sound of a single sharp release of pressurized air.

Then we have the "flutter" or as the internet coins it, the "stustustustu" sound. Yea this made me laugh too, never heard it called that, I was like "The what sound?" It actually kind of makes sense I guess. You've heard it in movies and some of you may not have realized what it was, or mistook it for a BoV sound.

This is caused on a turbocharged system without any blow off valve type present. When the unused pressurized air has no exit point, well, it just goes back to whence it came from. Yup - reverse course all the way back out your intake. It is the sound of the returning air being forced back through your turbo and chopping against the blades.

So there are a couple of public thoughts on this;

1. Terrible for your turbo
2. Not terrible for your turbo
3. Minimally terrible for your turbo

Debate ranges from "air battling on your blades bad mmkay" (which does make sense), to "turbos built today are structurally superior to those of the past", to "wont hurt smaller turbos, but bad for big boy turbos".

I have zero clue what is true, not true, half truth, or any other choice on the spectrum.

We can make our turbos flutter by simply removing the BoV and blocking the pipe, or you can take a slice of coke can and slip it between the BoV and the pipe.

I trust the BOV. If running @ Max boost, then promplty release the throttle, the turbo is still blowing hard, against a closed, already pressurized intake. S'posed to be hard on the turbo, like hitting the turbine with an air hammer, hence the BVFO.

 

[FunInTheSun]

I trust the BOV. If running @ Max boost, then promplty release the throttle, the turbo is still blowing hard, against a closed, already pressurized intake. S'posed to be hard on the turbo, like hitting the turbine with an air hammer, hence the BVFO.

Here's a SHORT, but accurate presentation about types of turbo flutter.
It's an aerodynamic stall of the compressor blades when the flow drops due to flow restriction (closed throttle plate) with the turbo at high output. The sound is from the blades losing the ability to pump the air against the high pressure gradient. This guy demonstrates the stall with an interesting setup. He drives the turbo with an electric motor and stalls it by blocking the flow.

 

[Todd Chapin]

Not no, but HELL no ?

 

[OFC Ranger]

Not no, but HELL no ?

Go on...

 

[Todd Chapin]

Go on...

I will stop at just do not be that guy....

 

[Bomlodr]

Turbocharged cars make two distinct iconic sounds.

Atmospheric Blow Off-Valve; this creates the iconic sound of a single sharp release of pressurized air.

Then we have the "flutter" or as the internet coins it, the "stustustustu" sound. Yea this made me laugh too, never heard it called that, I was like "The what sound?" It actually kind of makes sense I guess. You've heard it in movies and some of you may not have realized what it was, or mistook it for a BoV sound.

This is caused on a turbocharged system without any blow off valve type present. When the unused pressurized air has no exit point, well, it just goes back to whence it came from. Yup - reverse course all the way back out your intake. It is the sound of the returning air being forced back through your turbo and chopping against the blades.

So there are a couple of public thoughts on this;

1. Terrible for your turbo
2. Not terrible for your turbo
3. Minimally terrible for your turbo

Debate ranges from "air battling on your blades bad mmkay" (which does make sense), to "turbos built today are structurally superior to those of the past", to "wont hurt smaller turbos, but bad for big boy turbos".

I have zero clue what is true, not true, half truth, or any other choice on the spectrum.

We can make our turbos flutter by simply removing the BoV and blocking the pipe, or you can take a slice of coke can and slip it between the BoV and the pipe.

.

Ok..first off, the 2.3 turbo in the ranger does not have a blow off valve, it has a bypass valve. BOVs vent to atmosphere, BPVs vent to the atmosphere side of the turbo inlet.

Second...when you remove the bypass/blow off valve, you WILL hurt the performance of the engine by increasing turbo lag when you go from closed to open throttle. Not to mention the increased wear and tear on the turbo parts.

Using a natty light can and YouTube engineering to "modify" the engine in my truck is going to be a hard no from me.

 

[OFC Ranger]

.

Ok..first off, the 2.3 turbo in the ranger does not have a blow off valve, it has a bypass valve. BOVs vent to atmosphere, BPVs vent to the atmosphere side of the turbo inlet.

Second...when you remove the bypass/blow off valve, you WILL hurt the performance of the engine by increasing turbo lag when you go from closed to open throttle. Not to mention the increased wear and tear on the turbo parts.

Using a natty light can and YouTube engineering to "modify" the engine in my truck is going to be a hard no from me.

Oh man, thanks for the info. I thought our trucks had superchargers.

The guy at autozone sold me a specter air filter, but when I attach it to the end of my exhaust I get dash lights. Can you tell me whats wrong with it?

 

[got3fords]

Interestingly, intake tract reversion can be seen on engines with the air filter removed. It's more likely to be visible and engines with a short intake tract and an aggressive cam profile (like motorcycle engines, and performance cars built for high rpm power...). Pretty neat to watch, but a little scary to be close to once you realize what you are looking at. This is why some aggressive cams have a hard time idling smoothly. When the mixture makes a second trip through the carb, it gets a good bit richer, causing a stumble.

My '95 Harley has reversion. It is really weird the first time you see it. First time I noticed it I had the air filter off, and I thought WTF? Investigated it and found it was normal.

 

[importfighter01]

Here is what it sounds like on Ecoboost mustangs:

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