[Jaronbwall]

"Fun" times in this thread. I'm in the same boat. After fixing the typical maintenance issues, FBO, and stage 2 tune the turbo whine started. Doesn't seem to affect anything (knock on wood). No smoke, hitting 18psi all day long.

[lowrydr310]

Originally Posted by Saif2018

Unfortunately whining Stock turbos seems to be common, once they start whining - reducing the boost doesn't make it go away.

Mine have been whining at low rpm for almost 2 years,

They still boost to about 20psi tapering to about 16psi up top. Go for RB OEM Billets or 1/2 when you replace them. Never read, heard or seen any RB Turbos whining.

I just picked up a 335 recently and this sound was the first thing I noticed. Mines very quiet but still there, noticeable when accelerating under light load from 1500 up to about 2200 RPMs them over that I don't hear it. It's most noticeable on a cold engine, then once warmed up it's barely noticeable but definitely still there.

[Saif2018]

Originally Posted by lowrydr310

I just picked up a 335 recently and this sound was the first thing I noticed. Mines very quiet but still there, noticeable when accelerating under light load from 1500 up to about 2200 RPMs them over that I don't hear it. It's most noticeable on a cold engine, then once warmed up it's barely noticeable but definitely still there.

That's pretty much what mine are doing except mines much more noticeable even when warm, but your right it's much more noticeable when cold.

It's probably progressively going to get worse but if its barely noticeable when warmed up, Turbos should last you a long time before they go kaput lol.

[lowrydr310]

Originally Posted by Saif2018

That's pretty much what mine are doing except mines much more noticeable even when warm, but your right it's much more noticeable when cold.

It's probably progressively going to get worse but if its barely noticeable when warmed up, Turbos should last you a long time before they go kaput lol.

Mine were replaced just before the warranty expired in 2015, along with HPFP and injectors. The good news is that there's zero wastegate rattle!

When it's time to replace them, the RB billets look like a good option, but I hope that won't be for a few more years.

I used to own a turbocharged Mitsubishi Eclipse and was looking for that same sound on the N54 but was surprised that it's very muffled. Doesn't sound like the typical turbocharged car, but these turbos are tiny compared to even the stock turbo on that Eclipse.

[vadonchez]

Update on my turbo whine !

Today i installed vrsf dp on my 35is.
SO i took time to look at Turbo blades on exhaust side.
Absolutly no shaftplay and no oil on both....
Blades seems to be in good condition too.

Some pictures
[
https://zupimages.net/up/23/28/b2lp.jpg

https://zupimages.net/up/23/28/z27s.jpg

Well there is my sumary :

- no shaftplay on both turbo on both side (intake & exhaust)
- no oil leak on both turbo on both side
- no visible dammaged blade
- no oil consumption
- no exhaust smoke
- logs looks good, no lag, boost ans wgdc ok

After dp installed whine IS not louder.suprisly maybe a little bit quieter but
I Can hear turbo spool more .

For me this IS thé end of research....everything looks good but whine IS still here.

Bye

[eastsidaz]

Originally Posted by vadonchez

Update on my turbo whine !

Today i installed vrsf dp on my 35is.
SO i took time to look at Turbo blades on exhaust side.
Absolutly no shaftplay and no oil on both....
Blades seems to be in good condition too.

Some pictures
[
https://zupimages.net/up/23/28/b2lp.jpg

https://zupimages.net/up/23/28/z27s.jpg

Well there is my sumary :

- no shaftplay on both turbo on both side (intake & exhaust)
- no oil leak on both turbo on both side
- no visible dammaged blade
- no oil consumption
- no exhaust smoke
- logs looks good, no lag, boost ans wgdc ok

After dp installed whine IS not louder.suprisly maybe a little bit quieter but
I Can hear turbo spool more .

For me this IS thé end of research....everything looks good but whine IS still here.

Bye

Did you check for in and out shaft play aswell? not just side to side.

When they are worn or fail its usually always the thrust bearing wear this will give you in and out play.

[vadonchez]

Yes and nothing is wrong.

[studio54]

Originally Posted by vadonchez

Update on my turbo whine !

Today i installed vrsf dp on my 35is.
SO i took time to look at Turbo blades on exhaust side.
Absolutly no shaftplay and no oil on both....
Blades seems to be in good condition too.

Some pictures
[
https://zupimages.net/up/23/28/b2lp.jpg

https://zupimages.net/up/23/28/z27s.jpg

Well there is my sumary :

- no shaftplay on both turbo on both side (intake & exhaust)
- no oil leak on both turbo on both side
- no visible dammaged blade
- no oil consumption
- no exhaust smoke
- logs looks good, no lag, boost ans wgdc ok

After dp installed whine IS not louder.suprisly maybe a little bit quieter but
I Can hear turbo spool more .

For me this IS thé end of research....everything looks good but whine IS still here.

Bye

Thanks for your update.

Yes, maybe if the exhaust is louder with the DP, it compensates with the whine sound?

Probably noisy (journal or thrust) bearings themselves making the noise then ? Everything else is checked !

Still sirening here, no smoke or oil consumption for the moment too, but I didn't check all things like you.

[LastGray]

Mine has been making the siren noise for over a year, strangely only after installing a larger intercooler and charge pipe. Less apparent when the car is fully warmed up. On MHD St1+. No codes.

[vadonchez]

Guys what a wonderfull day for me!!
I succeed to delete my turbo whine!!

I read somewhere on this forum that somebody succeed to delete turbo whine by enable rattle fix parameter in MHD app and put it to 10%....

I was so focus on a blade problem that i never tried to enable this parameter especially that i have no rattle on my turbo.

Today i said myself "well just try it, it takes only 2 minutes to test " but i was certain that this wiil not work....

I first try to apply 70% to wastegate rattle fix parameter in MHD and my whine was louder than before, not great but that meant that the parameter played well on the noise!!

Go back to home and decided to try 10% like i saw on a thread on this forum.

Ok i drove the car around my home and imediatly heard that i heard nothing

I made a log to see if my turbo lag was modified but no, it took 500rpm to reach target from 2600rpm which is normal for those tiny turbo.Only difference i can see in my logs is that WGDC is at 20% at idle with 10% rattle fix parameter enable when it was at 50% before. I imagine that turbine spin less now on low load an idle and that's why whine disapear...

SO guys wich are concerned by this fu***g turbo whine at low load just try it, for me it works so it could be the same for you!!

[studio54]

Cool, glad this worked you. It completely disappeared ?

I might give a try to the MHD slider, but when I flashed my stock tune for MOT, resting position of WGDCs changed to around 10% at idle (instead of 50-60 with MHD stages). While whine was quieter, it was still existent on mine.

Will try ASAP anyway

[drymite]

Does anyone have this sound similar to howl. Only on low boost .
Do old diverter valves leak a bit n make a sound? Car is on MHD stock tune since im on brand new turbo cartridges for 2800km
No sound at idle at any rpm range.
https://youtube.com/shorts/5pp0dc3rVoE?feature=share
https://youtube.com/shorts/0o7cMdB0FJk?feature=share

[vadonchez]

Originally Posted by studio54

Cool, glad this worked you. It completely disappeared ?

I might give a try to the MHD slider, but when I flashed my stock tune for MOT, resting position of WGDCs changed to around 10% at idle (instead of 50-60 with MHD stages). While whine was quieter, it was still existent on mine.

Will try ASAP anyway

I have to run more but that was night and day between 70% and 10%....
I can hear turbo spool a little bit but i have DP now. I imagine that with stock catted DP i should hear nothing.

Try to test several rattle fix %, if it's an airflow disturbance then on % couls works when another one no....

EDIT after a drive: Absolutely no whine even with a cold engine. I was top down so i have to confirm that top up. It's so nice not to hear that whistle anymore!!

[vadonchez]

Originally Posted by drymite

Does anyone have this sound similar to howl. Only on low boost .
Do old diverter valves leak a bit n make a sound? Car is on MHD stock tune since im on brand new turbo cartridges for 2800km
No sound at idle at any rpm range.
https://youtube.com/shorts/5pp0dc3rVoE?feature=share
https://youtube.com/shorts/0o7cMdB0FJk?feature=share

hard to say trough youtube video quality but for me your noise is not the same than mine, i found it more mechanical than airflow distrubance...
Did you tried to disconnect your DV vaccum line and see if noise disapear?

[eastsidaz]

Originally Posted by vadonchez

Guys what a wonderfull day for me!!
I succeed to delete my turbo whine!!

I read somewhere on this forum that somebody succeed to delete turbo whine by enable rattle fix parameter in MHD app and put it to 10%....

I was so focus on a blade problem that i never tried to enable this parameter especially that i have no rattle on my turbo.

Today i said myself "well just try it, it takes only 2 minutes to test " but i was certain that this wiil not work....

I first try to apply 70% to wastegate rattle fix parameter in MHD and my whine was louder than before, not great but that meant that the parameter played well on the noise!!

Go back to home and decided to try 10% like i saw on a thread on this forum.

Ok i drove the car around my home and imediatly heard that i heard nothing

I made a log to see if my turbo lag was modified but no, it took 500rpm to reach target from 2600rpm which is normal for those tiny turbo.Only difference i can see in my logs is that WGDC is at 20% at idle with 10% rattle fix parameter enable when it was at 50% before. I imagine that turbine spin less now on low load an idle and that's why whine disapear...

SO guys wich are concerned by this fu***g turbo whine at low load just try it, for me it works so it could be the same for you!!

Worked for me aswell. I guess the wastegates are on the way out.

[vadonchez]

hi

Last update for my turbo whine.

I said in a previous post that i succeed to delete this whine by modify the WG rattle fix parameter trough MHD app, this was with my VRSF downpipe and it worked well.

But....because of too much noise for me with VRSF DP, i installed back the OEM catetd DP on my car and whine came back even with 10% value for the parameter...

This time i was disappointed...I decided to install brand new turbos this week in my own garage.
After 30 hours of hard work i finished the job yesterday and drive my car for 60kms since.No oil or coolant leak, MHD monitoring is ok and everything seems to be good.

Now i'm happy to drive my car without turbo whine even with no rattle fix parameter and OEM DP.

I still don't understand why my turbos whined. They are like brand new with absolutely no shaftplay. I imagine that the noise came from the inside maybe from bearing but how a bearing can whine when it's floating on a film of oil

I'm now scared to stay in stage 2+ V7.1, maybe should I go for stage 1+ to stay on safe side and take care of my new turbos

For those who have this whine noise, only way to really solve the problem is unfortunatly to change tubos...

After runing turbos with whine for 1 years and 8000kms, i think that they could have continue to work for long time but whine spoiled my fun.

bye!

[eastsidaz]

Originally Posted by vadonchez

hi

Last update for my turbo whine.

I said in a previous post that i succeed to delete this whine by modify the WG rattle fix parameter trough MHD app, this was with my VRSF downpipe and it worked well.

But....because of too much noise for me with VRSF DP, i installed back the OEM catetd DP on my car and whine came back even with 10% value for the parameter...

This time i was disappointed...I decided to install brand new turbos this week in my own garage.
After 30 hours of hard work i finished the job yesterday and drive my car for 60kms since.No oil or coolant leak, MHD monitoring is ok and everything seems to be good.

Now i'm happy to drive my car without turbo whine even with no rattle fix parameter and OEM DP.

I still don't understand why my turbos whined. They are like brand new with absolutely no shaftplay. I imagine that the noise came from the inside maybe from bearing but how a bearing can whine when it's floating on a film of oil

I'm now scared to stay in stage 2+ V7.1, maybe should I go for stage 1+ to stay on safe side and take care of my new turbos

For those who have this whine noise, only way to really solve the problem is unfortunatly to change tubos...

After runing turbos with whine for 1 years and 8000kms, i think that they could have continue to work for long time but whine spoiled my fun.

bye!

Just out of interest when you reinstalled the OEM pipes did you use a new turbo to dp gasket? Or when you installed the new turbos?

[vadonchez]

I changed turbo/DP gasket when i put my vrsf DP.
Then i keep it when i put back oem catted DP and when i put new Turbo too.
But Jobs was done into 500kms max so gasket was still brand new.

[vadonchez]

after 1000kms with my new set of turbo, whine is came back....
I have run mhd V10 stage 2 and i didn't run the engine above 6200rpm...

Whine is a lot less louder than with my previous set and to be honest my friends don't hear it without my indications.
But my ears are pretty sensitive now and I can hear it at low rpm when roof is closed.

I decided to come back to stage 0 but whine is still there.
Will stay like that for few month and see if whine will become louder or stay like that.

This car make me crazy....I'm very careful with my car, oilservice with good oil every 7000kms, preventive maintenance etc....seem's that she don't like MHD V10 at all.....

Just after changing my turbo, i ran V7 1+ and everything was ok,no whine. i think whine came back when i put V10 stage 2 again....

Now I will never use V10 again fo sure!!

[studio54]

Originally Posted by vadonchez

after 1000kms with my new set of turbo, whine is came back....
I have run mhd V10 stage 2 and i didn't run the engine above 6200rpm...

Whine is a lot less louder than with my previous set and to be honest my friends don't hear it without my indications.
But my ears are pretty sensitive now and I can hear it at low rpm when roof is closed.

I decided to come back to stage 0 but whine is still there.
Will stay like that for few month and see if whine will become louder or stay like that.

This car make me crazy....I'm very careful with my car, oilservice with good oil every 7000kms, preventive maintenance etc....seem's that she don't like MHD V10 at all.....

Just after changing my turbo, i ran V7 1+ and everything was ok,no whine. i think whine came back when i put V10 stage 2 again....

Now I will never use V10 again fo sure!!

Maybe it's ok, I like to think that a tiny amount of whine is probably normal, you can hear it on other turbo car too, especially when cold, but not cool if a loud whine is coming back :/

Someone had the theory that once you exceed a certain amount of boost (MHD v10 targets high figures), turbos will whine. It was true on mine, it started with V10. But with the amount of cars running this tune/or tune with 20psi+ targets on stock turbos, I would expect reading more people complaining about it.

The other thing is that maybe Mitsubishi OEM are not as good as first batches and something in quality changed at the factory, cause the whine appeared on mine on very recent ones too... With my old original BMW turbos, I was driving like I stole it for extented periods without a whine, changed them as a preventive measure (slight rattle) and then problems started : whine, one turbo failed, changed them again then whine again.

What is the difference between OEM and genuine BMW turbos ?

The kit of ECS isn't the same price for the turbos kit :

2500$ says it's Mitsubishi OEM :
https://www.ecstuning.com/b-assemble...65764928990kt/

4500$ says it's genuine BMW :
https://www.ecstuning.com/b-genuine-...5764928990kt2/

Double of the price, why such a difference in price ?

[vadonchez]

M'y first set of turbo was oem and whine too....thats why i changed them...
BMW Always sells parts a lot more expensive than aftermarket supplier.
Mitsubishi IS the supplier but maybe BMW asked spécial specifications....
On my oem set was write "boysen" on manifold and boysen is deutsh.
On my new Mitsubishi set nothing is writen on manifolds.

Thats the only one difference i saw....

[studio54]

Yes, I know that BMW dealer sells its own parts (or tagged BMW parts) at a higher price, but it's really high on this one, 1000 to 2000$ so yes I wonder if it has special specs (better quality elements..) or if it's just the exact as OEM Mitsu ?

Anyways if your first set installed on the car were original geniune BMW turbos and whined, it's not the problem then.

Everything leads to believe that high boost will generate the whine, but the weird thing is that we are not a lot compared to the number of ppl running V10 and high boost tunes.

Are you sure your new whine is turbos themself btw ?

Since you installed the new set, did you replace the inlet turbo gaskets ?
Cause a similar whine can be also a inlet slightly loose on the turbo, and if you re-used the old gaskets, it might lose the thightness (especially on the rear that is known to slightly popping off) ?