S55 oil system in n54

sancho78rus

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Jul 24, 2020
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e82 135
The motor died last season (bearings) because of 1.85 lat. G. I'm planing to see 2+G this season. So now I plan to put s55 oilsystem in n54. Has anyone done this? What problems will be besides fixing the steering pump mounts?
Oil pressure in n54 and s55 is the same?
 
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bakerdou

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May 13, 2021
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Asbjorn has performed s55 style semi-dry sump modification. But still, even M4 wont last long under more than 1.5 lat G. A better solution would be a oil accumulator or AKA accusump, or more expensively, a dry sump system mod
 
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gmx

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Dec 8, 2017
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Physically mounted and buttoned up here:

For more than 1.2~1.4G though, I think this isn't really enough for you. I remember seeing the aero on your car, is that 1.85Glat or Glong?
 

sancho78rus

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Jul 24, 2020
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Thanks for link. Hope my engine will survive this season with s55 pumps. Dry sump will be next year.

1.85 lateral G now. And I plan to modify front aero to improve aerobalance and waiting for 2G

293664407_5956462167716924_3725686797206607110_n.jpg
305980229_6118933911469748_5208541954977907288_n.jpg
 

wheela

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Jun 4, 2021
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Thanks for link. Hope my engine will survive this season with s55 pumps. Dry sump will be next year.

1.85 lateral G now. And I plan to modify front aero to improve aerobalance and waiting for 2G

View attachment 78343View attachment 78344
Holy smokes. I'm not too familiar with time attack, what kind of speeds are needed when cornering to hit those kinds of lateral g's?
 

gmx

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Dec 8, 2017
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To hit those LatG and sustain it, it's more than GT3 cars. GT3 can hit -2G Glong braking and sustain about 1.5~1.7G cornering but a tyre is more complex than that when asking both (lat/long).
 
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