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01-18-2012, 09:05 AM | #67 | |
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They'd fire me in an instant if I worked there
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01-18-2012, 09:13 AM | #68 | |
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01-18-2012, 09:13 AM | #69 | |
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By now means am I trying to bash Gentani, I am specifically interested in the limitations of this engine. There are several companies who engineer nice kits on this forum. As they say.... sharing each others information is "for the greater good". Isn't that what this forum is all about? |
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01-18-2012, 09:18 AM | #70 |
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This is complete nonsense. Principles of engine-building carry clear across the spectrum of make & model. Ok, maybe he won't know torque specs off the top of his head but everything else stated by BMRLVR are universal facts.
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01-18-2012, 10:05 AM | #71 |
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Maybe a dumb question but is there a way to have a dealer check for wear/potential issues while the engine is still under warranty (stock engine, not SC'ed). Heard several stories of engine problems, many isolated to cyl #5, and it seems like that would be a much easier/less costly preventative step than hoping nothing goes wrong.
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01-18-2012, 10:19 AM | #72 | |
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01-18-2012, 10:31 AM | #73 |
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Understood and agreed. I was just curious how hard it would be for peace of mind (and to avoid being that small % with the problem). Seems like it will actually be quite an effort.
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01-18-2012, 10:38 AM | #74 |
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Concur - don't give in to forum paranoia. Drive that thing like you stole it! ; )
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01-18-2012, 10:45 AM | #75 |
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Great vid and thanks for the explanation too.
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01-18-2012, 11:40 AM | #76 | |
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01-18-2012, 03:18 PM | #78 | ||
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01-24-2012, 12:27 PM | #79 |
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This has been a great discussion and is the kind of information I'd like to see more of. A quick Google search turned up the following, which I found useful.
http://www.clevite.com/techbulletins/CL77-1-205R.pdf http://catalog.mahleclevite.com/bearing/ Last edited by Quattro98; 01-24-2012 at 12:32 PM.. |
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01-24-2012, 01:25 PM | #80 |
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01-24-2012, 02:24 PM | #81 |
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Oh boy..... Things do tend to repeat themselves
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01-24-2012, 11:12 PM | #83 |
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I noticed that most high revving BMW m motors except those used for Turbo application require special castrol 10w60. Its very possible that
during an oil change an improper oil viscosity was used and sheared until it offered inadequate Lubrication protection resulting in bearing failure. All BMW engines ran fine with 5w30 10w30, but as soon as the s54 started to have rod bearing failure the spec changed to 10w60 castrol tws which provides superior protection properties for these specific high revving motors such as the s54,s65,s85. I don't think any other oil can be used safely. I also think the additive package in the oil is just as important as the oil viscosity.
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Last edited by apme123; 01-25-2012 at 12:10 AM.. |
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01-25-2012, 12:09 AM | #84 | |
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01-25-2012, 12:17 AM | #85 |
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All regular BMW production motors such as the m54 n52 n54 n55 m52 ask for 0w30 5w30 10w30. Just saying the high revving BMW m-series motors do indeed spec castrol tws 10w60. A 60 weight oil will be much less suspectible to shearing then a 30 weight oil.
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01-25-2012, 12:23 AM | #86 |
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regular production n and m generation use 5w30, s generation uses 10w60. really old like e34 e32's used mineral oil which most dealers just put in 5w30 synthetic anyways cause its stupid to stock 1 case of mineral oil ha!
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01-25-2012, 12:36 AM | #87 |
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Don't forget the s14 that speced 15w50
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Last edited by apme123; 01-25-2012 at 12:45 AM.. |
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01-25-2012, 02:01 AM | #88 |
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