@@noreaga2001 No, you misunderstood me dumb***. The cold side has the inner side before the blades (how some anti-surge housings look like) and then the inner side at/where blade is spinning.
If you had a longer straight section on the intake pipe it would actually make that first note of the flutter hit even harder and sound like all the skyline/supra videos we all love. It's called a "dose pipe" and the youtube channel "keep it reet" has THREE comparison videos for different lengths, bends, diameters, and materials. The ideal dose pipe is 3-4x the required diameter in length, straight, and made of metal (plastic ones don't dose). The next best thing is a long sweep/gentle curve 90-degree bend, same thing with the metal and being the required diameter. Anything over 6x-8x the required diameter loses the long first note and makes chipmunk noises instead. Anything with less than 2x the diameter in length before any bends and less than 1x the diameter in length after any bends loses the dose entirely and sounds more like basic flutter.
I have a 90 degree elbow on it with a large radius an I know what a dose pipe is but it only works well on turbos that dont have anti surge, otherwise it desnt do much, also doesnt do much in terms of spool sound but only makes the flutter a lot louder
@@throttlebuddies0 I heard a guy with T51r mod AND loud dose (the long first note kind that we all want) and IDK how he did it, but he did. I left a comment but IDK if I'll get a response. Loud whistle + good dose is my dream setup, but if I had to pick, I'd choose dose over the whistle.
@@Drunken_Hamster you need a turbo that doesnt have anti surge as the dose is much louder then. With an anti surge housing you need double the boost pressure to make the same kind of sound approximately if you are not running a bov
@@throttlebuddies0 Anti-surge is the "high flow" thing, right? The slot or holes that go around the main entrance to the compressor wheel, and the thing that you modify to do the "T51r mod"? Do you think on a turbo with an anti-surge housing you can just weld the slot shut and that'll be good enough?
@@Drunken_Hamster exactly. yes, you could, BUT aluminium gets distorted very easily by heat so might not be the best idea, tho some turbos have non-high flow options available. With a lathe you could also create an insert.
no idea, was to cheap to do the t51r mod but id guess itd just get a bit louder since they are caused by the same effect, which is air rushing over a sharp edge and therefore creating a turbulence, just like a whistle.
Ha, amdisbest, Nick, has a video of an Audi 20 v EFR7163 with a speed sensor hole without the sensor installed thats precisely this, thanks for sharing the how to
I have a turbo 5.3. Can barely hear the turbo even at 10psi over the loud ass v8 drone. Even with a 2 foot downpipe straight exit Im going to try this today and will post a video of the effect.
@@miatakhalifa yep same size the size of the hole does not really matter it just shouldnt be WAYY too big like an inch would probably be a bit too much
You can do a legit t51r mod if your compressor housing has some meat around the compressor wheel. Used a hole saw and cut down a few inches to reach the wheel then used a dremel wheel on the inside to cut slits and connect the two chambers.
I have a hole on the exit of the turbo compressor housing for a boost sensor. Does that work to or does it has to be in the compressor housing and not in the exit. Becouse al the air comes by that hole to.
Do you think this same concept would work on the turbine side? Would it give you that exhaust whistle sound if i were to drill a hole where the turbine blade spins?
id say the difference wouldnt be huge probably as it is the air rushing past a sharp edge that creates that sound. maybe a little more pronounced, although with a slot depending on the length i would be careful because the wider it is, the more of the smooth flow you are going to disturb
Would the same concept apply if I drilled a hole into an aluminum intake pipe separate from the turbo and then have a silicone boot covering the hole to prevent boost leak before the intake, but also creating air rushing over the hole of the aluminum inside the boot before the turbo?
Would this theory still work if the gap between the bolt hole and the bolt itself was well over 10 - 20 mm? lets say more along the lines of 50mm? The end is still plugged but just with a much larger gap.
well yeah that would cause a leak and the turbo wouldnt be able to produce the same amount of boost, but why would you want to remove that bolt completely?
works with pretty much any turbo haha. its just physics i guess. i mean a "real" t51r mod does nothing else than create turbulence and therefore a whistle sound, this is just the ghetto way haha
@@throttlebuddies0 How does this sound on turbos that don't have an antisurge cover? I'm building a custom turbo for a subaru and will drill the cover but not sure how its gonna sound since it doesn't have an antisurge cover.
There need to be edges on the hole so that there is air turbulence like in a whistle. One hole is sufficient. But a depth of 3-5 mm or so would be enough but again there needs to be an edge a dimple, dent or divet does not work the edge needs to be ~90 degrees and sharp to create turbulence and sound
One comment you mentioned a 3-5mm drill bit and another comment you mentioned a 6-8mm drill bit. Would a 7mm hole make a “deeper” or “louder” whistle than a 5mm hole? And to confirm 1-2cm deep?
@@finedeluxe1222 i havent tried anything bigger and wouldnt really recommend it as to big can disrupt the aiflow too much and can create a. Loss in power
@@throttlebuddies0 Muss mich mal nach und nach durch die Videos durch schauen :) Sehr interessante Themen, die ihr da behandelt, weiter so. Woher seid ihr?
@@throttlebuddies0 Ah verstehe, Glückwunsch zur automobilen Freiheit! Dachte mir schon, das muss irgendwo jwd im Hinterland und du ziemlich schmerzfrei sein 🤣
@@throttlebuddies0 I got a G35-900. Im not entire sure if the speed sensor hole is even threaded. Theres a hole, and then theres a black plastic cap on it thats held down by another smaller hole next to it with a bolt. I dont think the actual hole that goes into the turbo that the sensor sits in is threaded. Im a bit confused as to how you are supposed to mount this spacer exactly
@@placeholdername3206I have a Garrett g30-770 and mines the same way. Has to take a look and got all excited but then I was like what? How’s a spacer fit in here 😅… I wonder if we just take it off entirely??
@@throttlebuddies0 I can confirm this works! Was on a 1.4 TDCi fiesta so the turbo was only the size of my hand but tested it out and it worked a treat. How ever it sounds like a ‘dentist drill’ which I’ve heard before but I love it. Thanks for posting this video!
I have a maxspeed gt3582. It has the fitting in front like 3:51. Can this ne done on mine as well? Didnt really understand where exactly to drill. You have IG??
@@mirrekku really? wouldnt have expected that. though in greece its bad when your car is loud, but i prefer an understated exhaust anyway. I prefer engine modifications etc.
@@byronboost actually no, on a journal bearing turbo, there is more load on the thrust washer and the compressor wheel can rotate on the shaft causing an imbalance
thanks for posting this. I drilled 8 5mm holes in my compressor housing and it sounds insane. no loss of power
Video??
@@tommylyeahsarcasm
Where in the compressor housing? In the back near the wheel? Or in the front like a antisurge compressor housing?
@@ricka12345you have no business drilling if you don't know which side of the turbo is the charge side
@@noreaga2001 No, you misunderstood me dumb***. The cold side has the inner side before the blades (how some anti-surge housings look like) and then the inner side at/where blade is spinning.
(HX35W) Drilled a 4.8mm hole about 0.8cm deep. Sounds AMAZING. 👌
Video please? Im about to do it on my rx7
@ if you haven’t done it or seen results, I can make a video today on the whistle I got from it
@@finedeluxe1222please do
If you had a longer straight section on the intake pipe it would actually make that first note of the flutter hit even harder and sound like all the skyline/supra videos we all love. It's called a "dose pipe" and the youtube channel "keep it reet" has THREE comparison videos for different lengths, bends, diameters, and materials. The ideal dose pipe is 3-4x the required diameter in length, straight, and made of metal (plastic ones don't dose).
The next best thing is a long sweep/gentle curve 90-degree bend, same thing with the metal and being the required diameter. Anything over 6x-8x the required diameter loses the long first note and makes chipmunk noises instead. Anything with less than 2x the diameter in length before any bends and less than 1x the diameter in length after any bends loses the dose entirely and sounds more like basic flutter.
I have a 90 degree elbow on it with a large radius an
I know what a dose pipe is but it only works well on turbos that dont have anti surge, otherwise it desnt do much, also doesnt do much in terms of spool sound but only makes the flutter a lot louder
@@throttlebuddies0 I heard a guy with T51r mod AND loud dose (the long first note kind that we all want) and IDK how he did it, but he did. I left a comment but IDK if I'll get a response.
Loud whistle + good dose is my dream setup, but if I had to pick, I'd choose dose over the whistle.
@@Drunken_Hamster you need a turbo that doesnt have anti surge as the dose is much louder then. With an anti surge housing you need double the boost pressure to make the same kind of sound approximately if you are not running a bov
@@throttlebuddies0 Anti-surge is the "high flow" thing, right? The slot or holes that go around the main entrance to the compressor wheel, and the thing that you modify to do the "T51r mod"?
Do you think on a turbo with an anti-surge housing you can just weld the slot shut and that'll be good enough?
@@Drunken_Hamster exactly.
yes, you could, BUT aluminium gets distorted very easily by heat so might not be the best idea, tho some turbos have non-high flow options available.
With a lathe you could also create an insert.
I also did this mod sounds EXCELLENT 🏎️💨. Thank you for sharing your knowledge and work-around. Salute 🫡 Chief.
Now what if you did both t51R and the holes?
no idea, was to cheap to do the t51r mod but id guess itd just get a bit louder since they are caused by the same effect, which is air rushing over a sharp edge and therefore creating a turbulence, just like a whistle.
Congratulations you've got yourself a air raid siren😂
Ha, amdisbest, Nick, has a video of an Audi 20 v EFR7163 with a speed sensor hole without the sensor installed thats precisely this, thanks for sharing the how to
Sure but there needs to be at least a plug on the speed sensor port as if its open that might not be ideal power wise lol
This works! I did it on my veloster N video coming soon on my channel.
nice! will look out for that!
It’s been 2 months and no video. BS
@@martinboyce5993 my camera took a shit shitty phone video going up now
I have a turbo 5.3. Can barely hear the turbo even at 10psi over the loud ass v8 drone. Even with a 2 foot downpipe straight exit
Im going to try this today and will post a video of the effect.
So what about a bigger turbo, 78/75. Same size drill bit and hole depth? I have a vs racing t51r housing and it barley whistles.
@@miatakhalifa yep same size the size of the hole does not really matter it just shouldnt be WAYY too big like an inch would probably be a bit too much
@@throttlebuddies0 well looks like I'm gonna drill a hole in my turbo 😂. I'll make a video about it and come back here and lyk.
@@miatakhalifaany updates??
Can you do a diagram on where to drill exactly???
Awesome I’m gonna drill my housing on my 2015 Ram 2500 6.7l Cummins-can’t wait to hear the results! Thanks for posting this & letting everyone know-👍🏼
How’d it work out for you
@@tristenversluis2993lol
I did this trick with a 4mm bit and 6 holes
Works great😅
Upload a vid!
@@ralph2jz i will make one soon
@@amitrodjan8093 did you make one?
@@tristenversluis2993 will upload video soon
Lmao
You can do a legit t51r mod if your compressor housing has some meat around the compressor wheel. Used a hole saw and cut down a few inches to reach the wheel then used a dremel wheel on the inside to cut slits and connect the two chambers.
yeah, but its a lot more expensive to do
most turbos have the possibility of tetting a housing with anti surge, that can also be modded.
I have a hole on the exit of the turbo compressor housing for a boost sensor. Does that work to or does it has to be in the compressor housing and not in the exit. Becouse al the air comes by that hole to.
@@mikeleenders6823 no it will not work the only way it will,, how i am showing it in the video
Do you think this same concept would work on the turbine side? Would it give you that exhaust whistle sound if i were to drill a hole where the turbine blade spins?
i doubt it as you dont really have the room to drill there. in theory if you can find room maybe but not sure
Try it and video it so we can see. It should work, vgt turbos make the sound on the same principle of action.
Honestly can’t tell if this is a joke or not so I guess I’ll sacrifice my turbo to find out
@@dillonosterhout1705 lol not a joke, works like im explaining it and also showing in the before and after
How do you think a slot would sound? Say eighth inch wide, quarter inch deep and three quarter inch long?
id say the difference wouldnt be huge probably as it is the air rushing past a sharp edge that creates that sound. maybe a little more pronounced, although with a slot depending on the length i would be careful because the wider it is, the more of the smooth flow you are going to disturb
Would the same concept apply if I drilled a hole into an aluminum intake pipe separate from the turbo and then have a silicone boot covering the hole to prevent boost leak before the intake, but also creating air rushing over the hole of the aluminum inside the boot before the turbo?
no this will not work. the sound comes from the blades of the compressor wheel rushing past the edges of the hole.
Would this theory still work if the gap between the bolt hole and the bolt itself was well over 10 - 20 mm? lets say more along the lines of 50mm? The end is still plugged but just with a much larger gap.
yep, would stil work. The theory works because of the air turbulence/the air that rushes over the hole.
Is it bad if you just completely remove the bolt on the pulsar turbo
well yeah that would cause a leak and the turbo wouldnt be able to produce the same amount of boost, but why would you want to remove that bolt completely?
@@throttlebuddies0 it sounds alot better with it not there when i put it back in takes alot of the noise away
@@michaelch6536 yes because you are creating a leak and pullig air through the hole the turbo will lose a lot of efficiency
@@throttlebuddies0 yeah i understand but thanks for the tip it sounds good with the bolt in aswell
I removed my bolt and in welded a plate over the speed sensor flange lol! My turbo is super loud now 😂👌🏼
can you do this with a td04?
you can do that with basically any turbo
I can confirm the spacer trick works on the pulsar 6466 and their g series replicas.
works with pretty much any turbo haha. its just physics i guess.
i mean a "real" t51r mod does nothing else than create turbulence and therefore a whistle sound, this is just the ghetto way haha
@@throttlebuddies0 How does this sound on turbos that don't have an antisurge cover? I'm building a custom turbo for a subaru and will drill the cover but not sure how its gonna sound since it doesn't have an antisurge cover.
@@AMTuned it will sound similar the anti surge doesnt make a difference in that case.
@@throttlebuddies0 Got it
My borg warner does not have a hole drilled in it from factory. Is there still a way to do this?
@@305pyroheads as i explained in the video you can drill an indent or rather a small hole about 1 cm deep that will create the same sound
@ ahh ok, is there a specific place to drill them
@305pyroheads as it is explained in the video it needs to be somewhere where the fins of the compressor wheel will pass by directly
did not work drilles 3 small dents into a spare gt style turbo housing I had and put it no with no difference in sound
There need to be edges on the hole so that there is air turbulence like in a whistle. One hole is sufficient. But a depth of 3-5 mm or so would be enough but again there needs to be an edge a dimple, dent or divet does not work the edge needs to be ~90 degrees and sharp to create turbulence and sound
One comment you mentioned a 3-5mm drill bit and another comment you mentioned a 6-8mm drill bit. Would a 7mm hole make a “deeper” or “louder” whistle than a 5mm hole? And to confirm 1-2cm deep?
@@finedeluxe1222 i havent tried anything bigger and wouldnt really recommend it as to big can disrupt the aiflow too much and can create a. Loss in power
So about 4/5mm would be best?
@@finedeluxe1222 probably, yes
I appreciate it 👌
Doesn’t matter on the turbo size would it work on a stock Srt4 turbo
In theory would work on any turbo
Man hört direkt, dass du Deutscher bist 😂 Cooler Kanal, abonniert!
ja fast unvermwidbar, danke :D
die alten videos waren auch noch auf deutsch
@@throttlebuddies0 Muss mich mal nach und nach durch die Videos durch schauen :) Sehr interessante Themen, die ihr da behandelt, weiter so. Woher seid ihr?
@@peterm3861 wohne derzeit in griechenland da ist das mit umbauen etwas entspannter ;)
@@throttlebuddies0 Ah verstehe, Glückwunsch zur automobilen Freiheit! Dachte mir schon, das muss irgendwo jwd im Hinterland und du ziemlich schmerzfrei sein 🤣
So on the Pulsar unit which has a speed sensor, no drilling is needed? Yout just put a spacer on there? How thick a spacer?
Doesnt really matter i think 10mm or something should even be sufficient.
@@throttlebuddies0 I got a G35-900. Im not entire sure if the speed sensor hole is even threaded. Theres a hole, and then theres a black plastic cap on it thats held down by another smaller hole next to it with a bolt. I dont think the actual hole that goes into the turbo that the sensor sits in is threaded. Im a bit confused as to how you are supposed to mount this spacer exactly
@@placeholdername3206I have a Garrett g30-770 and mines the same way. Has to take a look and got all excited but then I was like what? How’s a spacer fit in here 😅… I wonder if we just take it off entirely??
I’m very tempted to try the drilling mod. Just the one hole? Any idea of drill bit size?
yes just one something around 6-8mm should suffice and 1-2cm deep is enouch
@@throttlebuddies0 I can confirm this works! Was on a 1.4 TDCi fiesta so the turbo was only the size of my hand but tested it out and it worked a treat. How ever it sounds like a ‘dentist drill’ which I’ve heard before but I love it. Thanks for posting this video!
@@SpeedyJames haha yeah it is very high pitched as you can hear in the video! but tnaks anyway!
Did you try it?
@@Gusmanbro try what and who?
I have a maxspeed gt3582. It has the fitting in front like 3:51. Can this ne done on mine as well? Didnt really understand where exactly to drill. You have IG??
Oh you drill from the inside of the housing. Opposite the casting? Like, don't create a hole correct? 😂
@@schalachi yeah but i have instagram its _throttlebuddies. you cxan find a link on the channel page
So I did this yesterday with a 4mm bit and just one hole. It sounds like a dentist drill lol. Should I drill more holes ?
@@Marcarlar no one should be enough.well yes its pretty high pitched the smaller the turbo the higher pitched its gonna be
german accent, location greece. guess you decide to get the hell away from tuv? 😂😂👌
@@mirrekku correct haha
@ i feel u, here in czechia its the exact same
@@mirrekku really? wouldnt have expected that. though in greece its bad when your car is loud, but i prefer an understated exhaust anyway. I prefer engine modifications etc.
God I want one so badly
Air raid siren principle
haha yeah pretty much!
Turbo flutter and durability is a myth 😂 come on guys is 2024
@@byronboost actually no, on a journal bearing turbo, there is more load on the thrust washer and the compressor wheel can rotate on the shaft causing an imbalance
@@throttlebuddies0 my journal turbos say otherwise