@@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.
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.
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
@@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.
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.
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)
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.
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 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.
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
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.
Flutter sound any day!!! Love your content.
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
Surge for fantastic sound, venting for reliability.
BOV
Off throttle compressor surge is fine, ive have it on my car for over a year no issues, sounds wayyy better
I used to love the flutter, but at the moment, i prefer the Bov
Personally i prefer the flutter
Stustustustustu boi! Lets go!
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?
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.
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)
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.
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.
They both sound really cool! If it was my own car, I would choose the blow-off valve.
I prefer the blow-off, as it doesn't sound broken
For me they both are kind of equally cool.
the one that doesn't explode the turbo, thanks xD
Would love to hear a Greddy type S BOV (dumping into atmosphere of course) on your car!
The 2nd, the first sounds like the jettsons
I love both equally, but compressor surge is expensive
love the flutter sound. sounds like i have squirrels in my engine and it never gets old.
I think the flutter sounds nice but I know that a bov will come in handy
BOV
Although the flutter is a beautiful sound
For me, valve venting sound great, also your turbo will last longer than with compressor surge. Congrats for your project!
bov of course. sounds amazing btw got me goosebumps 😌
I like the blow off but love the compressor surge
Flutterin sound good but BOW is brutal!
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.
Flutter, it's crazier than mine.
The flutter for me
I like the recirculated turbo, people dont seem ruin thier engine as fast:)
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
The flutter one sounds waaaaay better imo
The fluttering sounds expensive, so I certainly prefer the proper valve vent :)
I had a little of both on my Supra. HKS SSV. Then I had my ported Precision turbo.
Flutter for coolness; blow-off for longevity.
The second sound is more neighbours friendly, I say. Overall is your car you should decide!
❤ dat turbo blow-off valve !👍🏽
The blow off valve is the way to go, max power and engine longevity.
Gentlemen, we have reached GT2 BOV sound.
Love it!
I love the flutter ❤
Turbo flutter sound makes me nervous, BOV all the way 😂
After my A4 got an engine replacement it started to make that sound like a Supra
i just love flutter
The squirrel mixer
BOV. I have my first turbocharged vehicle.
Flutter all da way ❤
my saab used to make both sounds after being modified and tuned.
love that flutter 😍👌
Flutter. All day, every day, and twice on Sunday
I want both 😁
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.
Blow off valve venting
it's sound like a evolution!
Turbo flutter is a very unsettling sound to me lol, I definitely prefer the blow-off valve
I prefer the correct way.
I prefer the first one
Turbo flutter FTW!!
Stututututu flutter... Sound over turbo longevity 🤟
venting but if i get the choice : supercharger on a small cc engine (european sized/upto 3l) for me
This is a hard choice!!!!!! I love them both!!!! 💔
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.
Someone needs to find a way to get the flutter sound from the BOV area
I prefer the flutter, except on my own car.
I prefer the turbo fluffer
Valve venting still the best for longevity
Bov because it is a functional part
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.
Put a dose pipe if it doesn't already have with a pod filter ofc and see how U like it
My car does both depending on how much boost you have.
I prefer the second one, it's more natural to me 😂😂😂
I remember my st185 gt4 didn't even come with bov 😂or bypass valve, tho the 91 mr2 finally did
Well, I like better the sound of the compressor surge, but it gotta be the bov.
I prefer bov, flutter makes me cringe knowing the turbo is at risk
100% flutter, if it’s someone else’s car
Blow off valve saves the compressor impeller
Only if I was in a track day just for fun I'd keep the valve closed
Flutter FTW even if it kills the turbo in the long term. Cheap part since Maxxpeedingrods is available. :)
#2 all the way
BOV, because machines that are happier sound better to me.
Valve venting
I have the mr2 in erlc Roblox, it's red btw
BOV all day!
Turkey calls ftw any day unless it’s an hks ssq. Have the greddy type s didn’t like the mass vent sound unlike the hks with that classic whistle first
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.
Flutter all the way for me
Definitely turrbo flutter
I have a BOV on mine but I know virtually zero about this stuff, how would I go about getting the flutter sound if I wanted it?
Blow-off sound more controlled
What a recirculation valve?? That one sounds different as well.
Flutter would get REALLY old, really soon. Go with venting.
i would take the blow of valv because i would be scard about my cold turbo side.
Can you do both😢😢😢
Mr2 all the way!!!
Whichever is most efficient.