[meme]

Hey Folks,

My 335i turbo sounds like a supercharger, by that I mean it sort of makes a whistling sound than a traditional throaty turbo. My car was in the body shop and I had a rental 328i for a month, the turbo on the 328 actually sounds better than mine IMHO, it sounds like a motorcycle when I push it above 5000 rpm, like I can hear the engine making larger explosions. My 335i makes a whistle/whine which starts just above 2000 RPM, its not a loud whistle, but it does not sound like the 328i.

Is something wrong?

[Cyberdemon]

Unless your check engine light is on and there's some noticeable change in power nothing is wrong.

The 328i is a different engine. It's like saying your car doesn't sound like a GT-R or RX7. You have 2 fewer cylinders and a different exhaust system. The noise is a function of the recirculation, intake, and exhaust design which is unique on each engine.

If you hear the engine making "larger explosions" either that's a really weird way of describing your engine noise, unless of course you were getting detonation/knock in which case I would check your gas.

[FC4]

Are you sure you didn't get the optional Supercharger package? How is the sound? Is it more like a "ssssWWWWBBrrrrrrrrrrrSSSSSSSSSSSSSSSSSSSWWEEEEEEE EE" or like a "VRRRRsssssssshhhhhhsppppppssssssssssssssshhhh hh"?

[meme]

Originally Posted by Cyberdemon

Unless your check engine light is on and there's some noticeable change in power nothing is wrong.

The 328i is a different engine. It's like saying your car doesn't sound like a GT-R or RX7. You have 2 fewer cylinders and a different exhaust system. The noise is a function of the recirculation, intake, and exhaust design which is unique on each engine.

If you hear the engine making "larger explosions" either that's a really weird way of describing your engine noise, unless of course you were getting detonation/knock in which case I would check your gas.

I know 328 has a different engine than a 335 but my point was that my car sounds like it has a supercharger, not a turbo charger. - they both sound distinctively different. If the term "explosion" sounds weird to you, I guess it was definitely a really weird way of explaining it.

[meme]

Originally Posted by FC4

Are you sure you didn't get the optional Supercharger package? How is the sound? Is it more like a "ssssWWWWBBrrrrrrrrrrrSSSSSSSSSSSSSSSSSSSWWEEEEEEE EE" or like a "VRRRRsssssssshhhhhhsppppppssssssssssssssshhhh hh"?

Ha, I am sure I didn't buy a supercharger. I checked under the hood just to make sure . Its definitely sounds like a "ssssWWWWBBrrrrrrrrrrrSSSSSSSSSSSSSSSSSSSWWEEEEEEE EE".

[FC4]

Can you be more specific to the type of supercharger it sounds like? Positive displacement such as a roots or twin-screw? Or is it more of the centrifugal type?

[Bmwman325]

VTEC just kicked in Yo.

[RobC2]

It's okay, my Honda sounds like a diesel sometimes and it isn't one. It goes "woaaarr-click-woaaarr-click-woaaarr-click", but like really fast and at the same time.

[EJL]

Originally Posted by meme

My 335i makes a whistle/whine which starts just above 2000 RPM, its not a loud whistle, but it does not sound like the 328i.

Is something wrong?

Thats what every turbo I've ever had sounded like...