[lukemcmullen45]

So to my understanding (please correct me if I am wrong) the MHD Burble Tune basically dumps fuel into the combustion chamber after the combustion to cause a burble sound. Again please correct me if I am wrong.

If this is the case, would it be smart to upgrade the PCV Valve when running the burble tune? Probably a stupid question but I am just learning more about PCV Valves and what they do and the only way I'm gonna learn is if I ask around. Also Im still learning about MHD and the burble tune and I want to make sure it doesn't hurt my car running the burble

[Antetokounmpo]

it would be smart to not run a burble tune.

[E93_Savage]

Been running the burble on and off over the past year no issues what so ever. My neighbors decided to add 2 more cars to their stable and park in front of my house (9total). So I get to play the sound of my people every morning when they do.

Every car is different just remember that.

[JM98]

As long as you don't have cats in place, you can run it without issue.

This topic has been beat to death - it causes no issues.

People just don't realize how bad their turbos smoke until they go catless (which usually coincides with an aftermarket tune).

[nicky dj]

Originally Posted by JM98

As long as you don't have cats in place, you can run it without issue.

This topic has been beat to death - it causes no issues.

People just don't realize how bad their turbos smoke until they go catless (which usually coincides with an aftermarket tune).

Are you saying straight pipe all the way through or just catless DP's, or catless exhaust?

I have catless DP's only, stock exhaust and I had to add a quart+ of oil after just getting an oil change 3 months ago 1500m. Have done this a couple times. No leaks whatsoever, all gaskets and VC changed already.

Reason I ask is because the excessive oil burning and my local tuner shop point to the burble tune.

[Soden82]

Catless downpipes is what he means. The burbles can destroy the cats over time

[nicky dj]

Originally Posted by Soden82

Catless downpipes is what he means. The burbles can destroy the cats over time

Thought so, straight piping it next year anyways.

Anyone with any insight on the oil loss with the burble tune and why?

[9krpmrx8]

My 2011 E90 335i had burble from day one on the BMW PPK tune and ever since MHD was released, just rolled 108k, FBO, stock turbo. Lots of stock turbocharged cars burble bone stock and it may be more common now, but it is nothing new.

[JM98]

No oil loss. Just some dudes being paranoid and trying to blame old smoking turbos/pcv issues on something - high mileage N54s have oil consumption.

[nicky dj]

Originally Posted by JM98

No oil loss. Just some dudes being paranoid and trying to blame old smoking turbos/pcv issues on something - high mileage N54s have oil consumption.

72k miles. Valve cover and gasket replaced. All gaskets changed, oil pan, ofhg. RB PCV valve. Turbo seals look good according to my mechanic. No smoke of any color coming from exhaust. Took burble tune off for a while no issues. Burble tune on, after a few months car asking to dump in a qt+.

Any ideas if not the burble tune?

[JM98]

Originally Posted by nicky dj

72k miles. Valve cover and gasket replaced. All gaskets changed, oil pan, ofhg. RB PCV valve. Turbo seals look good according to my mechanic. No smoke of any color coming from exhaust. Took burble tune off for a while no issues. Burble tune on, after a few months car asking to dump in a qt+.

Any ideas if not the burble tune?

Typical oil consumption. If you had problems you would see smoke on decel or startup.

[Cm452]

I'm going to give this the college try, but will preface by saying none of us has sufficient data, even anecdotal, to assert a claim one way or the other. That said, if an engine has worn cylinder walls and rings (which is completely normal as miles stack) it relies on a sort of polymerized oil film on the cylinder walls as well as fresh oil for sealing against blow by. This varnish, if you will, fills in the tiny scratches and low spots; if you dump enough fuel, you can wash down the cylinder walls, thus interfering with the obturation afforded by this film. Done repeatedly, in quick succession, you'll see sufficient breakdown that blow by will increase and so too will oil consumption.
Now, before everyone screams the sky is falling, it is important to consider that this requires a fair bit of unburnt fuel. I'd imagine that MHD tuning considered this and did NOT inject such a volume of fuel. Moreover, there are other considerations, like driving behavior with and without the burble and number of miles of beat runs in between having it on or off.
Lastly, there are other ways, such as ignition timing and valve timing, that can also produce mean engine braking music, too, which may or may not be employed here.
If you run it and notice oil consumption, STOP DOING so and see what happens. If you have been running it for x number of years without issue, congrats.I Doubt, with prudence, any serious harm will occur. ymmv.
-Cm

[lukemcmullen45]

Originally Posted by Cm452

I'm going to give this the college try, but will preface by saying none of us has sufficient data, even anecdotal, to assert a claim one way or the other. That said, if an engine has worn cylinder walls and rings (which is completely normal as miles stack) it relies on a sort of polymerized oil film on the cylinder walls as well as fresh oil for sealing against blow by. This varnish, if you will, fills in the tiny scratches and low spots; if you dump enough fuel, you can wash down the cylinder walls, thus interfering with the obturation afforded by this film. Done repeatedly, in quick succession, you'll see sufficient breakdown that blow by will increase and so too will oil consumption.
Now, before everyone screams the sky is falling, it is important to consider that this requires a fair bit of unburnt fuel. I'd imagine that MHD tuning considered this and did NOT inject such a volume of fuel. Moreover, there are other considerations, like driving behavior with and without the burble and number of miles of beat runs in between having it on or off.
Lastly, there are other ways, such as ignition timing and valve timing, that can also produce mean engine braking music, too, which may or may not be employed here.
If you run it and notice oil consumption, STOP DOING so and see what happens. If you have been running it for x number of years without issue, congrats.I Doubt, with prudence, any serious harm will occur. ymmv.
-Cm

Well said.

[SlimE92]

Originally Posted by Cm452

I'm going to give this the college try, but will preface by saying none of us has sufficient data, even anecdotal, to assert a claim one way or the other. That said, if an engine has worn cylinder walls and rings (which is completely normal as miles stack) it relies on a sort of polymerized oil film on the cylinder walls as well as fresh oil for sealing against blow by. This varnish, if you will, fills in the tiny scratches and low spots; if you dump enough fuel, you can wash down the cylinder walls, thus interfering with the obturation afforded by this film. Done repeatedly, in quick succession, you'll see sufficient breakdown that blow by will increase and so too will oil consumption.
Now, before everyone screams the sky is falling, it is important to consider that this requires a fair bit of unburnt fuel. I'd imagine that MHD tuning considered this and did NOT inject such a volume of fuel. Moreover, there are other considerations, like driving behavior with and without the burble and number of miles of beat runs in between having it on or off.
Lastly, there are other ways, such as ignition timing and valve timing, that can also produce mean engine braking music, too, which may or may not be employed here.
If you run it and notice oil consumption, STOP DOING so and see what happens. If you have been running it for x number of years without issue, congrats.I Doubt, with prudence, any serious harm will occur. ymmv.
-Cm

So pretty much use the burble option once in a while... definitely a good idea imo

Which is how I use them.

[9krpmrx8]

Oh no, I better stop burbling after 8 years and 108,000 miles......

[Smokey33]

It sound shit anyways so why would you want it? unless your 17 I suppose.....

[lukemcmullen45]

Originally Posted by Smokey33

It sound shit anyways so why would you want it? unless your 17 I suppose.....

That’s awkward... I am 17 whoops

[9krpmrx8]

Originally Posted by Smokey33

It sound shit anyways so why would you want it? unless your 17 I suppose.....

We run burbles just to piss off whiners like you.

[Smokey33]

Originally Posted by 9krpmrx8

We run burbles just to piss off whiners like you.

Run it all you like. Doesn't piss me off, just makes me think what a twat he is with that shit sounding car, or sounds like my arse hole after a hot curry.

[9krpmrx8]

Originally Posted by Smokey33

Run it all you like. Doesn't piss me off, just makes me think what a twat he is with that shit sounding car, or sounds like my arse hole after a hot curry.

I mean it brought you into this thread so it must bother you quite a bit. It's okay if you just wanted to come in and whine, we get you.

[FireBlaze]

Originally Posted by Smokey33

Run it all you like. Doesn't piss me off, just makes me think what a twat he is with that shit sounding car, or sounds like my arse hole after a hot curry.

Doesn't your DCT "fart" too when upshifting. That sound makes me cringe too.

[studio54]

I believe that if you activate the rattle fix with the maximum lag it will burble even more, with a "deeper" tone.. but of course it will add some lag