Quote:
Originally Posted by mwat
Source on this? Haven't heard of any bias towards PWG vs EWG N55's.
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It's false, both the F8x, EWG and PWG use the same exact rod bearings.
It even shares the same exact crankshaft connecting rod.
Check it out on realOEM, these are the part numbers based on my car which is PWG.
01 Set connecting rod 1 11247624615
02 Connecting rod bolt M9X47MM 12 11247589671 $4.02
03 Bearing shell yellow 50,00MM(0) 6 11247576714 $1.97
03 Bearing shell violet 50,00MM(0) 6 11247576715 $16.76
04 Bearing shell, red 50,00MM(0) 6 11247628034
04 Bearing shell, blue 50,00MM(0) 6 11247628035
Most of not all spun bearings are due to insufficient oiling, bad maintenance, user error. The reason why it doesn't happen to the S55 is due to their secondary oil pump and essentially integrated baffle. The M2 (N55) as well.