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      11-23-2012, 01:06 AM   #23
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Quote:
Originally Posted by RenoE92M3 View Post
Its a 2008
MY07-09 had known rod bearings issues that BMW redesigned & replaced (which probably explains the motor failure). Even ESS acknowledges this with a disclaimer at the bottom of the description for each of their S65 Supercharger kits:

Quote:
Application intended for: E90 M3, E91 M3, E92 M3 from 2007 2008 2009 2010 2011 2012 2013, 2007-2009MY cars require update of rod bearings to new BMW specification before installation of this kit.
If it's under warranty & you decide to keep it, have BMW fix it under the warranty. If your car is truly stock & their was a significant mechanical component that caused premature engine failure, that should be covered under the BMW NA warranty.


If the car is no longer under warranty & you've got the funds, I'd say crack the motor open & lower the compression. Since you mentioned supercharging it as a "winter project", go all out & make BIG power

Last edited by benzy89; 11-23-2012 at 01:12 AM.
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      11-23-2012, 11:19 PM   #24
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ess only has this warning on 2 of their 4 supercharger kits.this one,for example,is rated up to 775 hp,makes 585 hp,and is suitable for all e90 m3's from '08 on-

http://www.esstuning.com/products/E9...er-System.html

i discussed this rod bearing issue with 2 friends of mine who are bmw techs.they don't believe the earlier e90 m3's have a rod bearing problem.they just said the newer ones are tighter,and better suited for supercharger application.

if ess offers a kit capable of 775 hp on an 08 or an 09 with the original rod bearings,the motor must be pretty sound
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      11-23-2012, 11:54 PM   #25
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Quote:
Originally Posted by Jamie@Evolve View Post
E46M3 - Rod Bearing Issues
E39M5 - Rod Bearing Issues
E60M5 - Rod and Main Bearing Issues
E9xM3 - It's likely a bearing...

Good luck and hopefully they replace it. 43k is really low for a bearing issue...
Exactly why does BMW struggle with bearings?
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      11-24-2012, 02:09 AM   #26
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Im confused so is this engine blown? What are the rod bearing issues to be concerned about?
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      11-24-2012, 03:49 AM   #27
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Quote:
Originally Posted by xfirer1guy View Post
Exactly why does BMW struggle with bearings?
On the s62 its an oil starvation issue on rods 7/8 farthest from the pump... I've discussed this with dry sump guys and the problem disappears with dry sump oiling... Why BMW doesn't do dry or pseudo dry sump oiling like Porsche and now even Chevy on some of the LSx engines I don't know...
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      11-24-2012, 03:10 PM   #28
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Per factory docs:

Two oil pumps are installed in the S65 engine; the oil return pump, which is driven via a gearwheel by a crankshaft, and the volume flow-controlled main oil pump, driven via chain drive by the oil return pump.

The duocentric design of the oil return pump ensures that oil is always available at the inlet pipe of the main oil pump in the rear area of the oil pan, i.e. even when braking sharply from high speeds.

The electrical oil return pumps installed in the S85 for scavenging the cylinder heads are no longer required, which results in a furtherweight saving. This is made possible by the lower number of cylinders, modification of the oil return routes, and the large capacity of the oil pan. The oil pan has a capacity of 8.3 litres (S85 9.3 litres). The oil supply is also guaranteed at extreme longitudinal and lateral accelerations of up to 1.4 times the normal gravitational acceleration.

So it looks like changes would only be necessary if we're dealing with forces greater than 1.4 times the normal gravitational acceleration.
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      11-25-2012, 08:47 PM   #29
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Yes the car is under warranty and it is bone stock unless you consider a KNN filter to be a wild modification lol
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      11-27-2012, 08:04 PM   #30
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Maybe someone has better information than I do, but according to RealOEM rod bearing part number has not changed since 2008, but the main bearings have, as of 10/2008. So I don't know what rod bearing update would be made?
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      11-27-2012, 08:18 PM   #31
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Quote:
Originally Posted by robbiedawg View Post
ess only has this warning on 2 of their 4 supercharger kits.this one,for example,is rated up to 775 hp,makes 585 hp,and is suitable for all e90 m3's from '08 on-

http://www.esstuning.com/products/E9...er-System.html

i discussed this rod bearing issue with 2 friends of mine who are bmw techs.they don't believe the earlier e90 m3's have a rod bearing problem.they just said the newer ones are tighter,and better suited for supercharger application.

if ess offers a kit capable of 775 hp on an 08 or an 09 with the original rod bearings,the motor must be pretty sound
Ha Ha, I don't think I would trust your friends, tighter is not what you would want for a higher horsepower application. You would want more oil clearance if anything.
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      11-27-2012, 08:47 PM   #32
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Quote:
Originally Posted by BMRLVR View Post
Ha Ha, I don't think I would trust your friends, tighter is not what you would want for a higher horsepower application. You would want more oil clearance if anything.
i probably misunderstood their explanation, but was comforted by their conclusion.they're good buddies of mine,and would be straight with me if they knew of a problem.
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      11-28-2012, 04:13 PM   #33
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Quote:
Originally Posted by Team Plutonium View Post
So you are saying "tighter" isn't always better...
^
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      11-28-2012, 05:17 PM   #34
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Quote:
Originally Posted by Team Plutonium View Post
So you are saying "tighter" isn't always better...
It isn't..especially if you're hung like King Dong.
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      11-28-2012, 08:44 PM   #35
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Quote:
Originally Posted by Team Plutonium View Post
So you are saying "tighter" isn't always better...
Not always, but in most cases it usually is better
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      12-03-2012, 11:09 AM   #36
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OP, you sure you're not selling extended warranty's? Let's see some pics or some kind of proof this actually happened.
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      12-03-2012, 12:10 PM   #37
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Quote:
Originally Posted by robbiedawg View Post
ess only has this warning on 2 of their 4 supercharger kits.this one,for example,is rated up to 775 hp,makes 585 hp,and is suitable for all e90 m3's from '08 on-

http://www.esstuning.com/products/E9...er-System.html

if ess offers a kit capable of 775 hp on an 08 or an 09 with the original rod bearings,the motor must be pretty sound
The 2 kits without the disclaimer are rated for less than 600 HP; it also says no where on the ESS website that the kits are rated up to 775 (that's what the V3 Si supercharger is maxed out at). The 625 & 650 both have that disclaimer, which makes perfect sense since those kits are placing a higher demand/stress on the engine with increased supercharger psi & more aggressive tuning.

So for you to say ESS offers a kit capable of 775 on an '08/'09 with the original bearings, is INCREDIBLY misleading. Also, if you're gonna go LC & replace/upgrade the internals, what makes you think that the OEM bearings aren't gonna be replaced

Last edited by benzy89; 12-04-2012 at 02:09 AM.
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      12-08-2012, 02:31 AM   #38
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Its official I'm getting a new motor. I'm going to pick up one of my wheels tomorrow and I will try and get picks. FYI for higher horsepower boosted applications you generally want to run looser tolerances.
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      12-08-2012, 12:53 PM   #39
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Quote:
Originally Posted by benzy89
MY07-09 had known rod bearings issues that BMW redesigned & replaced (which probably explains the motor failure). Even ESS acknowledges this with a disclaimer at the bottom of the description for each of their S65 Supercharger kits:
This "known rod bearing issues" story all came from one vendor who kept blowing motors and was looking for an explanation that pointed blame somewhere else. Believe them at your own risk.

I understand ESS has this disclaimer, but I also know BMW hasn't change the part number of the rod bearings, and neither has the bearing manufacturer -- Mahle/Clevite-77. But I also know that the main bearing part number has changed, and that's got to tell you if the rod bearings changed, then so would their part number.

Quote:
Originally Posted by benzy89
So for you to say ESS offers a kit capable of 775 on an '08/'09 with the original bearings, is INCREDIBLY misleading. Also, if you're gonna go LC & replace/upgrade the internals, what makes you think that the OEM bearings aren't gonna be replaced
I think both people are right. They are original bearings because there is nothing else besides the original BMW/Mahle/Clevite-77 bearings. They're also NOT original bearings because nobody would build a new motor and reuse the OLD bearings. So you see what I'm saying both people are right?

I've built my own motor. Those of us who built our own motors and measured our old '08 bearings can tell you they spec exactly the same as the ones you buy today.
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      12-13-2012, 02:44 AM   #40
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Bearings are toast and so are the cylinders
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      12-13-2012, 02:46 AM   #41
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The pistons are pretty beat too
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      12-13-2012, 02:48 AM   #42
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Some more photos
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      12-13-2012, 02:50 AM   #43
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The babets wore off some of the bearings
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      12-13-2012, 04:55 PM   #44
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Wow, bad bearings, scored cylinders, and detonation damage to the pistons(?). That motor is trashed.
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