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      07-01-2013, 10:07 PM   #1
J Smith
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Oil Pressure on S65

Anyone tracking/racing their E90/92 M3 have a gauge or data sensor for oil pressure hooked up? Just about to start driving mine on the track and would like to know what kind of pressures people are seeing and what is typical for this engine.

Thanks!
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      07-02-2013, 09:08 AM   #2
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I hear you! I don't understand why my '97 Jeep ZJ has an oil temp AND oil pressure AND water temp gauge, but a BMW does not.

On older BMWs the idiot light for oil pressure doesn't light until it's down to something like single digits, by which time it's too late if I'm at the track. I hope it's at least set for higher PSI in the M3.
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      01-25-2016, 02:48 AM   #3
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Yeah I want to bring this up again. Does any one track oil pressure? Does the s65 suffer from oil pressure drop from high G corners?
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      01-26-2016, 02:42 PM   #4
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There was just a thread about this. I can't find it at the moment, but he datalogged using both Liqui-Moly 10w60 and the new Shell/BMW 10w60.

Not sure what the sampling rate was, but he was able to maintain 4-6 bar the entire time (which is the spec BMW publishes).
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      01-27-2016, 06:57 PM   #5
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Quote:
Originally Posted by J Smith View Post
Anyone tracking/racing their E90/92 M3 have a gauge or data sensor for oil pressure hooked up? Just about to start driving mine on the track and would like to know what kind of pressures people are seeing and what is typical for this engine.

Thanks!
I have digital oil pressure gage (and water temp ) installed. Cold 90psi , hot with 90F ambient around 78psi on track with ~240F oil temp.
When hot idle pressure only around 39psi.
The gage can store data but I never found a low pressure situation on track.
The oil pan seems to be very well engineered.
I verified that the dash F gage is a true oil temp gage and it is very accurate.
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      01-27-2016, 10:58 PM   #6
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Quote:
Originally Posted by jakob66 View Post
I have digital oil pressure gage (and water temp ) installed. Cold 90psi , hot with 90F ambient around 78psi on track with ~240F oil temp.
When hot idle pressure only around 39psi.
The gage can store data but I never found a low pressure situation on track.
The oil pan seems to be very well engineered.
I verified that the dash F gage is a true oil temp gage and it is very accurate.
Great info! The E46M3 gauge is not accurate (it reads high) according to the guys at Bimmerworld.
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      01-28-2016, 04:14 AM   #7
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good info
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      01-28-2016, 05:32 PM   #8
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Thanks
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      03-28-2016, 08:08 PM   #9
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will post data from track day today.

Oil is Motul 15w50


3.52- 5.25 bar or 51-76 psi.
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Last edited by warp10; 03-28-2016 at 08:21 PM.
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      03-28-2016, 10:14 PM   #10
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I would assume on street tires the oil pressure would be ok even on a track. From BMW official documentation, the pumps should work without issue at up to 1.4Gs. Slide 61: http://koti.kapsi.fi/~postimies/BMW/..._M_Engines.pdf
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      03-28-2016, 10:36 PM   #11
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Quote:
Originally Posted by Jive View Post
I would assume on street tires the oil pressure would be ok even on a track. From BMW official documentation, the pumps should work without issue at up to 1.4Gs. Slide 61: http://koti.kapsi.fi/~postimies/BMW/..._M_Engines.pdf
Cue me looking through my videos to ensure that none of my turns are more than 1.4G
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      03-28-2016, 11:03 PM   #12
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Quote:
Originally Posted by redpriest View Post
Cue me looking through my videos to ensure that none of my turns are more than 1.4G
Some of the offs might be when you hit the mud/dirt.
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