E46Fanatics - View Single Post - M54 Oil Pump solution
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Old 04-04-2011, 04:11 PM   #19
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Join Date: Oct 2009
Location: Massachusetts
Posts: 585
My Ride: hates A/C & Sunroofs
Originally Posted by mrshelley View Post
I grenaded a motor this year just because it is seeing 6700 on the high banks of Daytona and 6900 when it runs in a draft. This is for at least 10 seconds per lap. After enough laps, the crank broke, the timing wheel exploded, the guide rail on the oil pump chain was broken and the oil pump chain shot all of the rollers out of it. On top of all of that, the harmonic balancer had rotated by about 60 degrees (the timing mark was that far off). In the series I run in, I'm limited by rpm is I like it or not.
Wow, I didn't realize it could break that bad. I'm hoping if this ever does happen the nut just shears or falls off and I can still save the engine. I'll be shifting at 6200 for the time being.
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