M3 Characteristics!

aussiem3 · 11-18-2008, 07:06 AM

alpineweissM3 · 11-18-2008, 07:10 AM

I LOVE the resonance @ 2k RPM.

Who would buy an ///M and complain about such a thing?

watrob · 11-18-2008, 07:12 AM

Interesting about the engine knock. A lot of M3 owners have made reference to it thinking they have a engine problem?

Eurotrash8 · 11-18-2008, 09:19 AM

Its reassuring to see that BMW acknowledges the the tranny having the roll over noise

endofanera7 · 11-18-2008, 12:25 PM

so is the resonance a bad thing? bcuz I love it..i do it all the time driving in the city in 5th gear at 2k rpm...

love the sound, maybe I will stop doing it after getting aftermarket exhaust.

Deda · 11-18-2008, 04:32 PM

sweet.

NewM3driver · 11-18-2008, 06:57 PM

I was told years ago by an aircraft engineer that "lagging" an engine is the worst thing you can do to it... much better to purr along at 3K in third around town.

At the time, he was driving a brand new '85 RX7 (awesome car) and I had an '86 Porsche 944 (another awesome car).

I remember him telling me over and over "keep the revs up!"

HotLap · 11-18-2008, 09:29 PM

Quote:

Originally Posted by Eurotrash8

Its reassuring to see that BMW acknowledges the the tranny having the roll over noise

Euro - curious can you elaborate on what this noise is? I've heard transmission noises and I too think they are just part of living with a performance (and heavy duty/dual plate clutch) transmission - but it would be nice to know what exactly the "roll over noise" is - so I can keep an ear out for other "non-normal" noises.

thx

urbo73 · 11-18-2008, 09:59 PM

Quote:

Originally Posted by NewM3driver

I was told years ago by an aircraft engineer that "lagging" an engine is the worst thing you can do to it... much better to purr along at 3K in third around town.

At the time, he was driving a brand new '85 RX7 (awesome car) and I had an '86 Porsche 944 (another awesome car).

I remember him telling me over and over "keep the revs up!"

Absolutely! Engines, and specifically THIS M3 V8, are meant to be revved high. Most people however fear they may be doing harm because of the excessive noise. But it's just the opposite. Isn't it shame when you stop to think about it that most cars have engines that never see past 2.5k except on rare occasions? Yet they are built to rev high. The only cost is gas. But let the engine sing!

Singletrack · 11-18-2008, 10:49 PM

Who drives in 5th gear at 2k RPM? I don't know that I have ever done that in the car. I love the sound at 2k in 2nd gear.

I don't think I've experienced roll over noise. I have experienced a rattle that seems to be from the flywheel when moving out of gear to neutral under mild load - like when pulling into a parking space.

spyderco10 · 11-19-2008, 01:17 AM

Quote:

Originally Posted by NewM3driver

I was told years ago by an aircraft engineer that "lagging" an engine is the worst thing you can do to it... much better to purr along at 3K in third around town.

At the time, he was driving a brand new '85 RX7 (awesome car) and I had an '86 Porsche 944 (another awesome car).

I remember him telling me over and over "keep the revs up!"

I already get only 12mpg driving "conservatively." If I kept the revs up, I'd probably get closer to 5mpg!

Eurotrash8 · 11-19-2008, 09:36 AM

Quote:

Originally Posted by HotLap

Euro - curious can you elaborate on what this noise is? I've heard transmission noises and I too think they are just part of living with a performance (and heavy duty/dual plate clutch) transmission - but it would be nice to know what exactly the "roll over noise" is - so I can keep an ear out for other "non-normal" noises.

thx

Ya forsure,

When your car is in neutral at idle with the clutch pedal out (not dpressed) you will hear a rattling/clanking noise and as soon as you depress the clutch pedal the noise is gone. And again, once you release the pedal the noise is back.......I jsut play my own music with the clutch pedal

Hope that helps

MMMorish · 11-19-2008, 11:21 AM

Quote:

Originally Posted by Singletrack

Who drives in 5th gear at 2k RPM? I don't know that I have ever done that in the car. I love the sound at 2k in 2nd gear.

I don't think I've experienced roll over noise. I have experienced a rattle that seems to be from the flywheel when moving out of gear to neutral under mild load - like when pulling into a parking space.

+1

Quote:

Originally Posted by urbo73

Absolutely! Engines, and specifically THIS M3 V8, are meant to be revved high. Most people however fear they may be doing harm because of the excessive noise. But it's just the opposite. Isn't it shame when you stop to think about it that most cars have engines that never see past 2.5k except on rare occasions? Yet they are built to rev high. The only cost is gas. But let the engine sing!

+2

GTM · 11-19-2008, 12:05 PM

Quote:

Originally Posted by Eurotrash8

Ya forsure,

When your car is in neutral at idle with the clutch pedal out (not dpressed) you will hear a rattling/clanking noise and as soon as you depress the clutch pedal the noise is gone. And again, once you release the pedal the noise is back.......I jsut play my own music with the clutch pedal

Hope that helps

Yes I have same noise.

If you park your car next to wall, then you will definitely hear it.

All the aftermarket twin-clutch have very similar noise, and after I read the owners manual, I found out that it is "normal"

V1.47fan · 11-20-2008, 02:53 AM

Quote:

Originally Posted by Singletrack

Who drives in 5th gear at 2k RPM? I don't know that I have ever done that in the car. I love the sound at 2k in 2nd gear.

I don't think I've experienced roll over noise. I have experienced a rattle that seems to be from the flywheel when moving out of gear to neutral under mild load - like when pulling into a parking space.

+1,And in a moderate incline,you might get knocking type sound as well in 5th gear at 2k rpm.Sounds like "engine lugging" to me...especially in a high rev engine.

MrHarris · 11-20-2008, 04:32 AM

I hear that knocking too, but I felt it was normal. So I guess driving around town in 5th is worse than 3rd from an engine health standpoint?

Singletrack · 11-20-2008, 09:28 AM

Quote:

Originally Posted by V1.47fan

+1,And in a moderate incline,you might get knocking type sound as well in 5th gear at 2k rpm.Sounds like "engine lugging" to me...especially in a high rev engine.

Wrong gear for the situation IMHO - funny that BMW gets the complaint so much that they need to issue a formal statement : )

11-18-2008, 07:06 AM	#1
aussiem3 Colonel 274 Rep 2,664 Posts Drives: Goggomobil Join Date: Jul 2007 Location: Kangaroo land iTrader: (1) Garage List 2017 BMW X6/// F86 [0.00]	M3 Characteristics! __________________ F86 X6/// Last edited by aussiem3; 02-20-2011 at 02:24 AM..
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11-18-2008, 07:10 AM	#2
alpineweissM3 I love my beautiful wife! 22 Rep 628 Posts Drives: e90 ///M Join Date: Oct 2007 Location: Pittsburgh iTrader: (0)	I LOVE the resonance @ 2k RPM. Who would buy an ///M and complain about such a thing?
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11-18-2008, 07:12 AM	#3
watrob Lieutenant Colonel 140 Rep 1,597 Posts Drives: MY2022 X5 M-Sport 45e White Join Date: Sep 2008 Location: Brisbane - Australia iTrader: (0) Garage List 2021 Toyota Yaris Z ... [0.00] 2022 BMW X5 G05 e45 [0.00] 2015 Ferrari Cali T [0.00]	Interesting about the engine knock. A lot of M3 owners have made reference to it thinking they have a engine problem? __________________ MY22 X5 M-Sport 45e White, 22"rims, Red Calipers, Ceramic Pads. Better off saying what it does not have and that's a B&O Audio System, otherwise all option boxes are ticked.
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11-18-2008, 09:19 AM	#4
Eurotrash8 Captain 70 Rep 628 Posts Drives: 2008 E92 M3 Join Date: Sep 2007 Location: Calgary, Alberta iTrader: (4)	Its reassuring to see that BMW acknowledges the the tranny having the roll over noise
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11-18-2008, 12:25 PM	#5
endofanera7 Major General 514 Rep 5,392 Posts Drives: 08 JB E92 M3 Join Date: Sep 2008 Location: Bay Area, CA iTrader: (16) Garage List 2018 Porsche GT3 [9.50]	so is the resonance a bad thing? bcuz I love it..i do it all the time driving in the city in 5th gear at 2k rpm... love the sound, maybe I will stop doing it after getting aftermarket exhaust.
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11-18-2008, 04:32 PM	#6
Deda Major General 564 Rep 7,034 Posts Drives: BMW M5 comp Join Date: Apr 2008 Location: Croatia iTrader: (0)	sweet.
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11-18-2008, 06:57 PM	#7
NewM3driver Colonel 1110 Rep 2,007 Posts Drives: 2017 M3 ZCP Join Date: Nov 2008 Location: CT iTrader: (0)	I was told years ago by an aircraft engineer that "lagging" an engine is the worst thing you can do to it... much better to purr along at 3K in third around town. At the time, he was driving a brand new '85 RX7 (awesome car) and I had an '86 Porsche 944 (another awesome car). I remember him telling me over and over "keep the revs up!"
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11-18-2008, 10:49 PM	#10
Singletrack 4th down; 4th quarter? Renegade. 87 Rep 3,850 Posts Drives: 09 SSII E92 M3; 19 FG M5C Join Date: Aug 2008 Location: Pittsburgh, PA iTrader: (3)	Who drives in 5th gear at 2k RPM? I don't know that I have ever done that in the car. I love the sound at 2k in 2nd gear. I don't think I've experienced roll over noise. I have experienced a rattle that seems to be from the flywheel when moving out of gear to neutral under mild load - like when pulling into a parking space.
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11-20-2008, 04:32 AM	#16
MrHarris yodog 197 Rep 5,025 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	I hear that knocking too, but I felt it was normal. So I guess driving around town in 5th is worse than 3rd from an engine health standpoint? __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
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