Exhaust sound vs. other cars

[hova00]

That M sounds like SHIIITTTT!!

[SakhirM4]

Originally Posted by hova00

That M sounds like SHIIITTTT!!

Your well thought out, intelligent perspective is greatly appreciated in the F8X forum.

[CaryTheLabelGuy]

The issue I have with the S55 so far is the lack of injector over-run coupled with retarded ignition timing on standing revs and normal driving. Yes, the S55 has a over-run upon throttle lift when in boost (is a combination of retarded ignition timing, injector over-run and cam phasing) which is used to help keep the turbos spooled and re-use the boost pressure from the lack of diverted valve. What I'm talking about is different. I'm talking about a longer, more sustained injector over-run and ignition retard (usually in the -20 or more deg range) during all throttle lifts including standing revs. It would make the S55 pop and crackle a lot more. The N55/54 have this, to a certain extent and I think it sounds more aggressive. Listen to the new M2 samples and you'll see what I mean. I use to tune all my client's cars with these types of over-runs because they sound great and actually serve a purpose on throttle lift-off.

With that said, the twin turbo S55 is going to be raspier than a single turboed N55/54. Once you start seeing single turbo conversions on the S55, it will sound more to most people's likings. I actually don't mind the S55's rasp. I've said it before but I get compliments on my M4's exhaust tone all the time (running stock exhaust with VRSF downpipes). With flaps open, it is very aggressive, especially when lifting the throttle while in a good amount of boost (aka the farts you guys like to call it).

[stylinexpat]

New Carrera S sounds better. Older M3 with V8 sounded better.

[stylinexpat]

Originally Posted by hova00

That M sounds like SHIIITTTT!!

My Cayman S with the factory Sports Exhaust sounds much better.

[mPlasticDesign]

Originally Posted by GreeKon

This is why I moved on to Porsche.

BMW = Game Over

This is why I found a very low mileage E90 M3 (<15k) and bought what is my third E9x and possibly my last BMW.

[SakhirM4]

Originally Posted by Mr.Metak2you

This is why I found a very low mileage E90 M3 (<15k) and bought what is my third E9x and possibly my last BMW.

That is good that you are enjoying a car that you like. On the other hand, it is a shame that you are disregarding a truly fantastic automobile. We will enjoy driving ours while you enjoy driving yours and we can both be happy

P.S. I have no intention of going into the E9X forum to diss your ride.

[Blindside_137]

Originally Posted by SakhirM4

That is good that you are enjoying a car that you like. On the other hand, it is a shame that you are disregarding a truly fantastic automobile. We will enjoy driving ours while you enjoy driving yours and we can both be happy

P.S. I have no intention of going into the E9X forum to diss your ride.

But to be fair, this is on the front page of binmerpost. Perhaps why everyone seems to be coming out of the woodwork.

It is unfortunate that sound is such a big deal when this car is so beautiful all around. But it will continue to be beaten like a dead horse by many, for a long time.

[TRZ06]

Originally Posted by stylinexpat

New Carrera S sounds better. Older M3 with V8 sounded better.

Can't argue with the E90 E92 engine note. That was much more engine sound though than exhaust. On that car, I could have done with a quiet exhaust just to listen to the beautiful sounds of that motor at 8K. If only it had torque and the F80 chassis.

I did love winding that car out though.

[SakhirM4]

Originally Posted by Blindside_137

But to be fair, this is on the front page of binmerpost. Perhaps why everyone seems to be coming out of the woodwork.

It is unfortunate that sound is such a big deal when this car is so beautiful all around. But it will continue to be beaten like a dead horse by many, for a long time.

You are right

[mPlasticDesign]

Originally Posted by SakhirM4

That is good that you are enjoying a car that you like. On the other hand, it is a shame that you are disregarding a truly fantastic automobile. We will enjoy driving ours while you enjoy driving yours and we can both be happy

P.S. I have no intention of going into the E9X forum to diss your ride.

I didn't say anything that would "diss" your car. That's just your insecurity talking. I've driven the M4, I tried to like it. It's a very fast competent car, I just prefer the E9x M3. It's more than fast enough for my personal needs and I like the engine characteristics that go way beyond just sound.

BTW. The title is M4 GTS "SOUND!" WTF do you think people are going to discuss.

[SakhirM4]

Originally Posted by Mr.Metak2you

I didn't say anything that would "diss" your car. That's just your insecurity talking. I've driven the M4, I tried to like it. It's a very fast competent car, I just prefer the E9x M3. It's more than fast enough for my personal needs and I like the engine characteristics that go way beyond just sound.

BTW. The title is M4 GTS "SOUND!" WTF do you think people are going to discuss.

I am far from insecure, thank you. I tried to like the E9x M3 also, but didn't, so stayed with my E46 M3 until they released the M4. As I said, we can both enjoy what we like.

[GhostyM]

As an M4 owner of almost 6-7 months. Enough was enough, I couldn't handle the sound. It's not so bad like some people say, but jesus christ.. I'm not exactly proud of it. A simple G35 with an exhaust sounds better honestly. A 335is sounds better. Any 911 sounds better. And don't get me started on the sounds of the M4 competitors (blows the F8x out of the water)

My F10 M5 that accompanied it in the garage, while no S85 V10 high pitched wail.. made the I6TT sound like a little girl, a whiny farty girl.

So here I am, I already ordered a GT350 Shelby mustang with the actual tools to sound good. 8250RPM N/A Flat Plane Crank V8 with 526hp.

I haven't even sat in the car yet and I can barely wait to just go listen to some good noise, been missing it ever since I got rid of my 11' E92 M3 with exhaust.

[SakhirM4]

Originally Posted by Chipped B6

As an M4 owner of almost 6-7 months. Enough was enough, I couldn't handle the sound. It's not so bad like some people say, but jesus christ.. I'm not exactly proud of it. A simple G35 with an exhaust sounds better honestly. A 335is sounds better. Any 911 sounds better. And don't get me started on the sounds of the M4 competitors (blows the F8x out of the water)

My F10 M5 that accompanied it in the garage, while no S85 V10 high pitched wail.. made the I6TT sound like a little girl, a whiny farty girl.

So here I am, I already ordered a GT350 Shelby mustang with the actual tools to sound good. 8250RPM N/A Flat Plane Crank V8 with 526hp.

I haven't even sat in the car yet and I can barely wait to just go listen to some good noise, been missing it ever since I got rid of my 11' E92 M3 with exhaust.

Enjoy your new car

[BimmerVinyl]

Originally Posted by SYT_Shadow

I haven't heard Ferrari's turbo, but Porsche's turbo sounds like ass, just like BMW's

Idk about this.. The X5/6 M sound pretty darn good, plus new M2 sound everybody seems to love! Just this engine really, not the best sound in the world, but also not bad

[LW50]

Originally Posted by CaryTheLabelGuy

With that said, the twin turbo S55 is going to be raspier than a single turboed N55/54. Once you start seeing single turbo conversions on the S55, it will sound more to most people's likings.

This seems to be a recurring comment. Since the N54 also has twin turbos and does not have the raspy sound or make duck fart noises, I think it's a bit of a stretch to blame it all on the second turbo.

Here's what I want to know: If the noise is due to the tuning that is designed to keep the turbine spooled up and that could be coded out as some have referenced, does the noise go away? And what are the drivability/response impacts of doing so?

I'd really be interested in seeing some data logs that plot ignition, fueling and cam phasing during these events.

[mkoesel]

Originally Posted by M3 n X5M

I think you hit it on the head.

It is most probably the twin turbo which makes the aural print of two, three-cylinder engines running together.

The N variants instead have a single turbo and so generate a six-cylinder engine sound.

The N54 has two turbochargers, and some think it sounds better than the S55 too (see posts in this very thread, for example).

[M3 n X5M]

Originally Posted by mkoesel

The N54 has two turbochargers, and some think it sounds better than the S55 too (see posts in this very thread, for example).

Good point. Something in the turbo and manifold design must be causing the S55 sound to be raspy.

[CanAutM3]

Originally Posted by CaryTheLabelGuy

With that said, the twin turbo S55 is going to be raspier than a single turboed N55/54.

Doesn't the N54 also use a twin turbo ?

[IEDEI]

Originally Posted by LW50

This seems to be a recurring comment. Since the N54 also has twin turbos and does not have the raspy sound or make duck fart noises, I think it's a bit of a stretch to blame it all on the second turbo.

Here's what I want to know: If the noise is due to the tuning that is designed to keep the turbine spooled up and that could be coded out as some have referenced, does the noise go away? And what are the drivability/response impacts of doing so?

I'd really be interested in seeing some data logs that plot ignition, fueling and cam phasing during these events.

the N54 sounds fantastic, as witnessed in the 1M....BMW definitely are able to make great sounding twin turbo setups..not sure what they did to make the S55 sound so bad....very UN-M sounding....thought they would have fixed this for the GTS but apparently not!

[blisstik]

Originally Posted by CanAutM3

Doesn't the N54 also use a twin turbo ?

Duh but he meant modified N54s. We're still here.

[M2PDX]

Originally Posted by Chipped B6

As an M4 owner of almost 6-7 months. Enough was enough, I couldn't handle the sound. It's not so bad like some people say, but jesus christ.. I'm not exactly proud of it. A simple G35 with an exhaust sounds better honestly. A 335is sounds better. Any 911 sounds better. And don't get me started on the sounds of the M4 competitors (blows the F8x out of the water)

My F10 M5 that accompanied it in the garage, while no S85 V10 high pitched wail.. made the I6TT sound like a little girl, a whiny farty girl.

So here I am, I already ordered a GT350 Shelby mustang with the actual tools to sound good. 8250RPM N/A Flat Plane Crank V8 with 526hp.

I haven't even sat in the car yet and I can barely wait to just go listen to some good noise, been missing it ever since I got rid of my 11' E92 M3 with exhaust.

The GT350 seems like an amazing car! I had a string of V8 Mustangs in my previous life, and loved them. So I'm sure you will too. For me, it wouldn't do the job. I like 4 doors, and I like the looks of the M3, and I love the quality of everything else. Having said that, if I had the cash, maybe I'd have both!

You apparently had a 2015 M3. As I said in my post, the 2016s sound very different.