NA first drive days for GR86 first week of August

[Goingnowherefast]

Originally Posted by nikitopo

Sound tube system weighted 1lb 8.5oz. Not sure how much the new speaker(-s) system weights, but it looks to me more complex and requires additional battery consumption.

Most active noise augmentation systems piggyback off the main speakers - so there's no additional parts needed. Also, there's a negligible amount of energy used in creating a few more sound waves through your existing powered speaker lol. On the other hand, the amount of money saved by not having to design, manufacture, quality control, and assemble another part is utterly massive.

Source: Powertrain NVH Engineer

[dragoontwo]

Originally Posted by Goingnowherefast

Most active noise augmentation systems piggyback off the main speakers - so there's no additional parts needed. Also, there's a negligible amount of energy used in creating a few more sound waves through your existing powered speaker lol. On the other hand, the amount of money saved by not having to design, manufacture, quality control, and assemble another part is utterly massive.

Source: Powertrain NVH Engineer

Not the new one coming. It has its own speaker and dedicated module.

Source: Service manual

ETA Other source: https://parts.subaru.com/a/Subaru_20...11-862-02.html

Part number 86301AB. It is not currently active in the parts database, but that is the dedicated engine noise speaker.

[Goingnowherefast]

Originally Posted by dragoontwo

Not the new one coming. It has its own speaker and dedicated module.

Source: Service manual

ETA Other source: https://parts.subaru.com/a/Subaru_20...11-862-02.html

Part number 86301AB. It is not currently active in the parts database, but that is the dedicated engine noise speaker.

Devil's advocate, the current BRZ/86 literally has speakers in the same location there that's obviously for the main speakers. We'd need to see the wiring diagram and functional schematic to know for sure.

[Yoshoobaroo]

Originally Posted by Goingnowherefast

Devil's advocate, the current BRZ/86 literally has speakers in the same location there that's obviously for the main speakers. We'd need to see the wiring diagram and functional schematic to know for sure.

We looked. It’s a separate module driving a separate speaker box. It’s fed by fuse 28 and hooks into the body control module, presumably to get engine load/rpm over the bus.

[dragoontwo]

Originally Posted by Goingnowherefast

the current BRZ/86 literally has speakers in the same location

Nope.

2020:


2022:


also check your PMs

[Dylans47]

Originally Posted by Yoshoobaroo

We looked. It’s a separate module driving a separate speaker box. It’s fed by fuse 28 and hooks into the body control module, presumably to get engine load/rpm over the bus.

Is this implying that removing fuse 28 would disable the fake engine noise, and produce no unintentional electrical side effects? I'm not too good with wiring!

[Yoshoobaroo]

Originally Posted by Dylans47

Is this implying that removing fuse 28 would disable the fake engine noise, and produce no unintentional electrical side effects? I'm not too good with wiring!

@ mentioned this would work, so maybe he can clarify. I guess we won’t know for sure until someone tries it and documents.

[Stonehorsw]

Originally Posted by Goingnowherefast

Most active noise augmentation systems piggyback off the main speakers - so there's no additional parts needed. Also, there's a negligible amount of energy used in creating a few more sound waves through your existing powered speaker lol. On the other hand, the amount of money saved by not having to design, manufacture, quality control, and assemble another part is utterly massive.

Source: Powertrain NVH Engineer

In a case like the one suggested, would not this require the sound generation to be integrated to the main audio system? I ask that because seems like in Japan, you can choose several aftermarket units, which I am not sure how it would integrate.

They should’ve simply skipped this feature, it’s cost and complexity for something silly.

[Blighty]

Originally Posted by Stonehorsw

In a case like the one suggested, would not this require the sound generation to be integrated to the main audio system? I ask that because seems like in Japan, you can choose several aftermarket units, which I am not sure how it would integrate.

They should’ve simply skipped this feature, it’s cost and complexity for something silly.

Toyota already developed the unit generally, so perhaps not as big of a deal for them to put it in.

[Yoshoobaroo]

Originally Posted by Stonehorsw

In a case like the one suggested, would not this require the sound generation to be integrated to the main audio system? I ask that because seems like in Japan, you can choose several aftermarket units, which I am not sure how it would integrate.

They should’ve simply skipped this feature, it’s cost and complexity for something silly.

Just give people a no-cost STI muffler option. Problem solved.

[dragoontwo]

Originally Posted by Yoshoobaroo

Just give people a no-cost STI muffler option. Problem solved.

Now this is something I could get behind. It's not like the engine is these cars is hard to hear.

[Yoshoobaroo]

Originally Posted by Blighty

Toyota already developed the unit generally, so perhaps not as big of a deal for them to put it in.

What makes you think Toyota developed the sound system? All we've seen on the Toyota test cars is a reskinned Subaru Starlink system.

[Blighty]

Originally Posted by Yoshoobaroo

What makes you think Toyota developed the sound system? All we've seen on the Toyota test cars is a reskinned Subaru Starlink system.

They put it in Lexus, Avalon's, the GR Yaris... etc.

Most car companies now run the technology in some way, even the porches and BMWs etc. As we all know, modern car engines have become more and more muted by efficiency to the point where its difficult (unless you are open top) to hear a lot, NVH has also gotten a lot better, which in turn dulls down things further.

Turn this car into a track machine and remove all that NVH and/or pull out those restrictive cats and sure, it will sound no different to any car built in the last 30 years with 4 big fat cylinders running to 7500k - bloody good!

[Yoshoobaroo]

Originally Posted by Blighty

They put it in Lexus, Avalon's, the GR Yaris... etc.

Most car companies now run the technology in some way, even the porches and BMWs etc. As we all know, modern car engines have become more and more muted by efficiency to the point where its difficult (unless you are open top) to hear a lot, NVH has also gotten a lot better, which in turn dulls down things further.

That’s not my point though, Toyota did very little engineering and development on this car. It’s not like the first Gen, Subaru already has the Toyota tech like D4S integrated into the car, Toyota was way more hands off until Akio told them to make it ‘different’ very late into development. They probably just rubber stamped Subarus drawings for the active sound control. Integrating their own solution into the Subaru electrics wills be way more effort and not worth it.

~it will sound no different to any car built in the last 30 years with 4 big fat cylinders running to 7500k - bloody good!

Agreed! Can’t wait to hear more aftermarket exhaust clips!