@@aydenholsinger you may be misunderstanding. We're not saying that the turbo life will definitely be significantly shorter in this setup/application. We're saying that we know extreme turbo flutter does cause extra wear and can contribute to killing a turbo. In this case/setup, the amount severity of the pressure change/wear hasn't been verified with sufficient measurements/facts/figures so there isn't enough information to 110% say that the extra wear is insignificant (e.g. Like 2 days less turbo life). So with the lack of verification/information, we're erring on the side of caution/being conservative because we know that venting to atmosphere doesn't cause extra turbo wear so we're leaning towards the lower risk scenario. If you said you had built this exact setup and tested/measured the difference in turbo wear, I would say that's fair enough but otherwise you need evidence to back up your statement.
Put a solenoid on the signal to the BOV, that way you can choose what you want, both have their place. The flutter for giggles, the BOV for serious times
Turbo flutter for me though I prefer the longer flutter. With a good turbo the "surge" (flutter) doesnt usually make a big impact on life expectancy . Most of the people I know (myself included) would have changed setup by the time the turbo fails and when it does how do you know it was from long term surge (flutter)? was it going to fail regardless? How much longer would the turbo have lasted without the flutter? For the fun I would risk it lol (as long as its not a unknown OEM turbo or a ceramic turbo) For reference my garrett 3076R gen 2 has been fluttering since 2013 and my GT2860Rs for longer and they both still going strong with no shaft play or anything. Had a subaru running a VF48 and 3 years of fluttering and no signs of stress. Even the TD04 that was on it previously had flutter but it didnt sound very nice. Just to clear something up closed throttle surge (flutter) and open throttle surge are two different things if you are fluttering at wide open throttle then that is def bad for the turbo. At the end of the day its your choice and in my experience the flutter is fine.
@@krexci2966 Any data on this? A lot of opinions, but no real data. Haven't seen one damaged by a surge. Mine in 4 years of abuse since I blocked off the bypass valve, (total age of the car is 31 years) haven't showed any signs of it being affected or accelerated wear.
No. You can find a lot of opinions but no data proving any of them. My stock turbo has blocked off it's recirculating blow off valve for about 4 years now. It also has almost double the boost pressure than it originally had. Still no signs of anything going wrong with it. I can experiment like that because I have an aftermarket turbo waiting to go in. But the OEM one is still going strong, and deals with any abuse I can throw at it.
only when dealing with higher boost pressures. audi had a lot of turbo wear issues on race cars in the 80s. also ball bearing turbos seem to have next to no issues vs the old style bushings. the biggest part that will mess a turbo up is flutter on boost, aka actual compressor surge, absolutely murders thrust bearings (bushing turbos)
My GR Corolla does both. Low boost has compressor surge because I assume that there's not enough pressure to actuate the recirc valve. Higher boost is 100% recirc, but it's still loud enough to be heard form in the cabin.
@@EmilioBaldi Depends, if it's happening with low boost it won't cause significant wear out, now on high boost levels it can cause significant damage! But independent on the boost level, a blow-off valve will be the best choice for old and current turbo tech.
@@EmilioBaldi eh, hardly. many people have had their turbos last many many years with flutter. mofern turbos are actually really well built and can take a LOT of abuse nowadays.
As a mechanically minded guy, especially on an unproven DIY installation, the flutter sound would cause me nightmares. I'd be imagining what stress and flexes I'm introducing to my poor compressor wheel with every upshift.
I dislike both. The blowoff valve is the proper way to do it so you don’t damage the turbo, and you should have the blowoff valve mostly vent back into the intake of the turbo for good efficiency.
Either one is pretty obnoxious, which is the word I want to use, but google indicates that it's harsh to say that. So, let's just say it's unrestrained. But I like it; the flutter sounds the best for me.
Well, if I remember correctly, someone wise and in the know (you), said turbo flutter was bad for the turbo. I recall that Ford have a "huge budget and don't give a damn, so just bolt another turbo on". I'm certain you don't 😂. Henceforth, I prefer bov 🖖
Sound wise I would prefer the flutter but for the health of my turbo I would prefer BOV
Perfectly said👌
👌
My thoughts exactly
Ppl rly be exaggerating compressor surge
@@aydenholsinger you may be misunderstanding. We're not saying that the turbo life will definitely be significantly shorter in this setup/application. We're saying that we know extreme turbo flutter does cause extra wear and can contribute to killing a turbo. In this case/setup, the amount severity of the pressure change/wear hasn't been verified with sufficient measurements/facts/figures so there isn't enough information to 110% say that the extra wear is insignificant (e.g. Like 2 days less turbo life).
So with the lack of verification/information, we're erring on the side of caution/being conservative because we know that venting to atmosphere doesn't cause extra turbo wear so we're leaning towards the lower risk scenario.
If you said you had built this exact setup and tested/measured the difference in turbo wear, I would say that's fair enough but otherwise you need evidence to back up your statement.
Can I get a BOV that makes the flutter sound, that would be ideal.
Noice
For practical purposes, I'll take the valve venting
Blow off valve is the better choice - just the feeling that things are right is worth it
Put a solenoid on the signal to the BOV, that way you can choose what you want, both have their place. The flutter for giggles, the BOV for serious times
BOV
Surge for fantastic sound, venting for reliability.
Turbo flutter for me though I prefer the longer flutter. With a good turbo the "surge" (flutter) doesnt usually make a big impact on life expectancy . Most of the people I know (myself included) would have changed setup by the time the turbo fails and when it does how do you know it was from long term surge (flutter)? was it going to fail regardless? How much longer would the turbo have lasted without the flutter?
For the fun I would risk it lol (as long as its not a unknown OEM turbo or a ceramic turbo)
For reference my garrett 3076R gen 2 has been fluttering since 2013 and my GT2860Rs for longer and they both still going strong with no shaft play or anything. Had a subaru running a VF48 and 3 years of fluttering and no signs of stress. Even the TD04 that was on it previously had flutter but it didnt sound very nice.
Just to clear something up closed throttle surge (flutter) and open throttle surge are two different things if you are fluttering at wide open throttle then that is def bad for the turbo.
At the end of the day its your choice and in my experience the flutter is fine.
Personally i prefer the flutter
Off throttle compressor surge is fine, ive have it on my car for over a year no issues, sounds wayyy better
I like both but I'm curious if either has an advantage over the other.
Mathematically may be, but no real noticeable difference when I tried it.
flutter can damage your turbo over time
@@krexci2966 Any data on this? A lot of opinions, but no real data. Haven't seen one damaged by a surge. Mine in 4 years of abuse since I blocked off the bypass valve, (total age of the car is 31 years) haven't showed any signs of it being affected or accelerated wear.
@@rimka11 ruclips.net/video/BFXIgME_5UA/видео.html
d4a made a video about it
@@rimka11how much psi? And how much power?
I used to love the flutter, but at the moment, i prefer the Bov
Stustustustustu boi! Lets go!
Isn't flutter bad for turbo? Massive air pulse bouncing back and forth.
Exactly my thoughts. Although flutter sounds a bit better, if you know what is causing the sounds I much rather have a blow-off valve.
Yeah can cause compressor wheel to die sounds hectic tho
It's not, I think car throttle did a video on it. It just slows down the turbo a bit (but doesn't reverse it).
No. You can find a lot of opinions but no data proving any of them. My stock turbo has blocked off it's recirculating blow off valve for about 4 years now. It also has almost double the boost pressure than it originally had. Still no signs of anything going wrong with it.
I can experiment like that because I have an aftermarket turbo waiting to go in. But the OEM one is still going strong, and deals with any abuse I can throw at it.
only when dealing with higher boost pressures. audi had a lot of turbo wear issues on race cars in the 80s. also ball bearing turbos seem to have next to no issues vs the old style bushings. the biggest part that will mess a turbo up is flutter on boost, aka actual compressor surge, absolutely murders thrust bearings (bushing turbos)
Flutter sound any day!!! Love your content.
the one that doesn't explode the turbo, thanks xD
100% I'd choose the turbo flutter. You should make this a poll* btw
A pole?
@@thelastwoltzer You know, a RUclips poll, a vote. I'd be curious what people prefer overall.
Compression surge reduces the efficiency and puts load on the turbo blades right?
Yes, it's blowback and it of course adds turbo lag as it needs to spool up again.
I prefer the blow-off, as it doesn't sound broken
My GR Corolla does both. Low boost has compressor surge because I assume that there's not enough pressure to actuate the recirc valve. Higher boost is 100% recirc, but it's still loud enough to be heard form in the cabin.
The blow off valve is the way to go, max power and engine longevity.
The flutter for me
They both sound really cool! If it was my own car, I would choose the blow-off valve.
Flutterin sound good but BOW is brutal!
I love both equally, but compressor surge is expensive
Flutter for coolness; blow-off for longevity.
Bov because it is a functional part
For me, valve venting sound great, also your turbo will last longer than with compressor surge. Congrats for your project!
The 2nd, the first sounds like the jettsons
love the flutter sound. sounds like i have squirrels in my engine and it never gets old.
100% flutter, if it’s someone else’s car
Flutter all da way ❤
I like the blow off but love the compressor surge
For me they both are kind of equally cool.
Flutter, it's crazier than mine.
I think the flutter sounds nice but I know that a bov will come in handy
The flutter one sounds waaaaay better imo
Blow off valve venting
Gentlemen, we have reached GT2 BOV sound.
Love it!
The fluttering sounds expensive, so I certainly prefer the proper valve vent :)
BOV
Although the flutter is a beautiful sound
Would love to hear a Greddy type S BOV (dumping into atmosphere of course) on your car!
love that flutter 😍👌
Someone needs to find a way to get the flutter sound from the BOV area
bov of course. sounds amazing btw got me goosebumps 😌
Turbo flutter, love that noise!😆
As much flutter sounds good, you're shortening the life of the compressor by stalling it.
@@EmilioBaldi Depends, if it's happening with low boost it won't cause significant wear out, now on high boost levels it can cause significant damage! But independent on the boost level, a blow-off valve will be the best choice for old and current turbo tech.
@@EmilioBaldi eh, hardly. many people have had their turbos last many many years with flutter. mofern turbos are actually really well built and can take a LOT of abuse nowadays.
@@EmilioBaldiit also doesn't actually come to a complete stop, it merely slows down (albeit by a significant amount)
@@QuincyStick compressor stall is the detachment of the airflow from the scroll, as in aircraft wings.
Each "stu" is a hammer blow on the bearings.
I love the flutter ❤
blow off, 100%. flutter is fun for 5 minutes, after that it gets tiresome.
I never use dump valve.
Turbo is working to build pressure into intake piping, that's not for dumping it outside
so you let the turbo "dump it outside" when it surges.
smort.
BOV all day!
❤ dat turbo blow-off valve !👍🏽
Flutter. All day, every day, and twice on Sunday
I like the recirculated turbo, people dont seem ruin thier engine as fast:)
I think the flutter sounds cool, but I can hear a sense of it kinda struggling, venting sounds better because it's smoother to me, like when I exhale.
The second sound is more neighbours friendly, I say. Overall is your car you should decide!
Dang, that's a hard one. They're both good. I'd have to say number one. That would just cause I have style two
After my A4 got an engine replacement it started to make that sound like a Supra
Valve venting still the best for longevity
Turbo flutter sound makes me nervous, BOV all the way 😂
I had a little of both on my Supra. HKS SSV. Then I had my ported Precision turbo.
i just love flutter
The squirrel mixer
I want both 😁
Turbo flutter is a very unsettling sound to me lol, I definitely prefer the blow-off valve
As a mechanically minded guy, especially on an unproven DIY installation, the flutter sound would cause me nightmares. I'd be imagining what stress and flexes I'm introducing to my poor compressor wheel with every upshift.
it's sound like a evolution!
Stututututu flutter... Sound over turbo longevity 🤟
my saab used to make both sounds after being modified and tuned.
I prefer bov, flutter makes me cringe knowing the turbo is at risk
This is a hard choice!!!!!! I love them both!!!! 💔
Turbo flutter FTW!!
I prefer the correct way.
BOV. I have my first turbocharged vehicle.
What a recirculation valve?? That one sounds different as well.
My car does both depending on how much boost you have.
Mr2 all the way!!!
You don't need a blowoff valve if you flat shift.
Flutter for life
At low boost it doesn't really matter for the turbo
I prefer the second one, it's more natural to me 😂😂😂
I prefer the first one
Blow off valve saves the compressor impeller
I prefer the flutter, except on my own car.
Only if I was in a track day just for fun I'd keep the valve closed
Whichever is most efficient.
Definitely turrbo flutter
#2 all the way
I dislike both. The blowoff valve is the proper way to do it so you don’t damage the turbo, and you should have the blowoff valve mostly vent back into the intake of the turbo for good efficiency.
I prefer the turbo fluffer
Up hill by far, nice work man!
Have to say the dose is much cooler
Flutter all the way for me
BOV, because machines that are happier sound better to me.
Either one is pretty obnoxious, which is the word I want to use, but google indicates that it's harsh to say that.
So, let's just say it's unrestrained. But I like it; the flutter sounds the best for me.
I remember my st185 gt4 didn't even come with bov 😂or bypass valve, tho the 91 mr2 finally did
Put a rubber chicken on the blow off valve. 👌
Well, if I remember correctly, someone wise and in the know (you), said turbo flutter was bad for the turbo. I recall that Ford have a "huge budget and don't give a damn, so just bolt another turbo on". I'm certain you don't 😂. Henceforth, I prefer bov 🖖
Blow-off sound more controlled
Blow off valve any day. More reliable and turbo life increased
Valve venting
So either a snoring turbo or a scoffing turbo.