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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 12-30-2012, 04:41 PM   #1
TGM3
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Rpm's seem too high??

While driving on the freeway my rpm gauge is at 3,000 rpm and the engine sounds kinda loud while going only 75mi an hour. Is the normal in an m3?
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Old 12-30-2012, 05:25 PM   #2
Steezy
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While driving on the freeway my rpm gauge is at 3,000 rpm and the engine sounds kinda loud while going only 75mi an hour. Is the normal in an m3?
Yes for the RPMs. Also, the M3 is not a quiet car at all.
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Old 12-30-2012, 06:12 PM   #3
TGM3
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Ok thanks man I was kinda worried there for a little bit.
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Old 12-31-2012, 12:56 AM   #4
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Sounds normal, assuming 6th gear.
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Old 12-31-2012, 01:17 AM   #5
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was actually thinking of that today too lol funny i see this first thing when i get on.. but yea i'm in a SMG in 6th gear at 80mph and noticed 3.2k rpm and i kinda thought that wasn't right with it being 6gears.. most other (newer) cars in 6th at those speeds are able to be 2.5-2.8 rpms.. << first time m3 owner so maybe it's just this gearing/motor
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Old 12-31-2012, 03:00 AM   #6
TGM3
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Sounds normal, assuming 6th gear.
Yea it's 6th gear.
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Old 12-31-2012, 10:55 AM   #7
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It's not a Toyota Camry, if that's what you were expecting. :p
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Old 12-31-2012, 11:56 AM   #8
First///M3
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It's not a Toyota Camry, if that's what you were expecting. :p
i would expect this from a camry actually..

cars' like vette's porsche's benz and lexus are able to "cruise" at those speeds with lower rpms.. would expect our bmw's to do the same
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Old 12-31-2012, 12:32 PM   #9
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i would expect this from a camry actually..

cars' like vette's porsche's benz and lexus are able to "cruise" at those speeds with lower rpms.. would expect our bmw's to do the same
It's a little thing called gearing ratios. Try driving an M3 with 3.91's.... or even the 4.10's

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Old 12-31-2012, 01:23 PM   #10
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Its the last raw BMW and it will make you very happy as long as you treat it with love
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Old 12-31-2012, 03:56 PM   #11
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It's a little thing called gearing ratios. Try driving an M3 with 3.91's.... or even the 4.10's
Yes. OP - to prove your car is fine: Here is an M3 with 4.10's going 70MPH on 6th gear.
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Old 01-21-2013, 07:02 PM   #12
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I really want gears, mechanic seems to think my rpm's will be too high on the freeway. 3k is about what I run at right now. how big of a jump in rpm did you see going to 4.10? i'm guessing 9%?
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Old 01-21-2013, 11:58 PM   #13
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I really want gears, mechanic seems to think my rpm's will be too high on the freeway. 3k is about what I run at right now. how big of a jump in rpm did you see going to 4.10? i'm guessing 9%?
Set up the calculator for an M3, your size tires, and change the final drive ratio to 4.10. Then you can see what kind of rpms you'd be running.

http://www.bokchoys.com/differential...calculator.htm
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Old 01-22-2013, 12:06 AM   #14
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Why? no power in first?

I use 4.10's on the track, but for the street,,, not worth it. On the other hand if you just buy the whole differential, its not a big deal to swap them out...

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Old 01-22-2013, 07:38 PM   #15
joelnet
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I put 4.11's in my transam and it was awesome. it was very noticeable. definitely the biggest bang for my buck. just looking for a little more fun.
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