02-19-2023, 05:58 PM | #1 |
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Oil Starvation B58 vs N55
I currently have a M235 with the N55 engine. There is a lot of talk about how the N55 is prone to oil starvation when the car is subjected to high lateral loads, such as long corners on track. I track my car, and l purposely run a narrow-ish tire just to avoid some of the lateral load, along with making sure oil level is at or just above full fill. But I still have a mortal fear of spinning the bearings some day.
The B58 apparently does not have the oil starvation issue in track use. My question is, WHY? What is so different about the B58 in a plain or M-Lite BMW that it doesn't have the same reputation for oil starvation? |
02-19-2023, 06:12 PM | #2 |
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B58 is closed deck, N55 open deck. Intercoolers are different N55 is air cooled B58 is liquid cooled. N55 has cam chain in front B58 has it in the rear. There is just not much in common between the two engines except displacement.
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02-20-2023, 07:03 AM | #3 | |
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You didn't even try to answer the question.. just wanted to point out that the engines are different?
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02-21-2023, 07:32 PM | #4 | |
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That would help a lot. That and a revised pickup are the key things the N55 in the M2 has that the M235 does not. But sadly it is stupid expensive to retrofit. |
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02-21-2023, 07:35 PM | #5 |
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Yeah I'm not sure I've seen it mentioned but I seen one in a b58 tear down video
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03-21-2023, 11:01 AM | #6 |
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I also have the same concerns, not sure if I will track the car.
This channel has great videos, turn on English translation, here is a bit of a comparo, B58 to N55 |
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