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BMW 3-Series (E90 E92) Forum
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This is how u properly breakin a N54 engine
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11-30-2009, 05:59 PM | #67 | |
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I can assure you that in the 30yrs I have worked in the auto industry I can say I have built countless off-road application engines -- everything from 2 stroke Yamahas to big-block muscle car engines and your mis-application of racing information is startling. An N54 was never designed with F1 in mind, nor any car ENGINEERED for passenger car operation. Comparing a single use engine that is fitted with parts that cost more than total cost of a well equipped 335 -- an engine that is torn down at the end of a race and goes through tech inspection is not slapped back together then and there to go out on the track again for a drive with the family. I hate to say, but you remind me of a person that was seen driving a loaner car at "open day" at a local circle track -- he was spotted and low and behold, he will NEVER have to opportunity to do that again... You may think its cool to do that to "the dealers" car... but what if -- just what if you saw a tech flogging your car all over town -- I can assure you -- you would be pissed off to high heaven .. So what make the dealers car DIFFERENT... ? |
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11-30-2009, 06:26 PM | #69 |
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i came into this thread expecting discussion on hard break-in procedures vs softer methods suggested by the factory...instead, it's a bunch of people who would rather hate on the OP (granted, the way he presented this thread was poor), than figure out if there is any substance to this "madness".
...well, there is and there is a huge following behind the hard break-in methods for new engines. slight tangent: you guys all know that bmw tests the engines for power before shipping them off to you, right? how do you figure they did that? anyway, i HIGHLY encourage most of you to read up on the theories/reasons for hard break-in procedures before blindly dismissing it. here's a quick list of links i found by doing a simple google search on the topic: http://www.mototuneusa.com/break_in_secrets.htm http://www.e90post.com/forums/showthread.php?t=323045 (looks like it was already discussed here once before) |
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11-30-2009, 07:40 PM | #70 | |
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11-30-2009, 08:12 PM | #71 |
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I can attest to the "race engine break-in" being real and beneficial, however bouncing off the rev limiter under ~10% load like that is doing no good. If the OP was under 100% load, that would be putting max load-bearing on all internals, and would effectively 'stretch out' the engine.'
All race engines (in the motocross world) are heat cycled twice, then beat on as hard as possible. Unlike the OP's video, the engines are acually under load, not just bouncing off the limiter. Has anyone ever had a car that was honestly babied for 20k miles, then the 1st time it gets WOT it grenades? I know of 3 vehicles that have blown primarily due to being 'babied' it's young life. |
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11-30-2009, 08:17 PM | #72 | |
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... "The main thing is to load the engine by opening the throttle hard in 2nd, 3rd and 4th gear. Realistically, you won't be able to do full throttle runs even in 2nd gear on most bikes without exceeding 65 mph / 104 kph. The best method is to alternate between short bursts of hard acceleration and deceleration. " That is from your link. That is NOT what this thread is showing |
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11-30-2009, 08:57 PM | #73 | |||
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11-30-2009, 09:17 PM | #74 |
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FAIL
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12-01-2009, 08:32 AM | #77 | |
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12-01-2009, 09:19 AM | #78 |
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clearly hes a fuck up because he never received proper parenting
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12-01-2009, 09:35 AM | #79 | |
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Thanks Jackass |
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12-01-2009, 11:17 AM | #80 |
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This is how I broke in my Big Wheel when I was a kid. My legs were killing me after it though. So ever since then Ive gone through a slower break in style.
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12-01-2009, 11:21 AM | #81 |
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unless it was adult owned and driven ;T
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12-01-2009, 11:44 AM | #82 |
Too many Alex's, from now on, call me Beaufort
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I wouldnt completely agree with that either. I know a lot of "adults" who abuse their cars more than "kids" who baby their first cars.
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12-01-2009, 07:48 PM | #83 | |
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If I drive a manual 328i every day, why would I want to joyride the autos they use as loaners? Thanks to the morons who do beat on other peoples' cars though, they can't afford to trust anyone. Also, this is what makes me cringe when I think of getting a used car. I think burberry means adult as in a mature person, not just an older person. You can usually tell the difference within a few minutes of talking to them. |
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12-01-2009, 07:53 PM | #84 |
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........... what a couple of douches.
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12-04-2009, 04:55 PM | #85 |
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Idiot
No respect, no knowledge, just a moron.....
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